Aluminum extrusions profile

Aluminum Extrusions

  • ISO 9001-2008 and ISO 14001-2004 Authorized
  • 100,000 Ton Annually Production Capability
  • 1 xxx,2xxx,3xxx,5xxx, 6xxx, 7xxx series all can be made
  • 8Hours fast response by Wellste support team

Your Premier Aluminium Extrusions Manufacturer

SGS & ISO Audited Aluminum Extrusion
Wellste, a professional aluminum extrusion supplier in China, has been approved by SGS, and obtain ISO quality system certification, ISO environmental management system certification.
0% Quality Complaint
Wellste has advanced in-house quality testing lab, 48+ QC inspection team, 100% inspected before shipment, which will guarantee the product quality and eliminate your concerns.
Manufacture Test Certificate
We will issue testing certificate each order before shipment. Make sure to meet chemical composition standard and achieve mechanical performance standard.
Fast Delivery
Wellste keeps stable delivery time 25 days or less. We own 35 extrusion presses that ensure your delivery date. Even in peak season, we can catch the delivery time. There will be no any delay.

Your Premier Aluminum Extrusions Manufacturer

Wellste aluminum extrusions is transformed process by Aluminum Alloy and squeeze it by mold, also known as aluminium profiles or aluminum extrusion profiles, are produced through the extrusion process. They are both extruded aluminum shapes. We supply various kinds of Aluminium Extrusion with its 20+ years aluminium Industry experience. Wellste is your reliable aluminum extrusion manufacturer and supplier in China.

Wellste aluminum extrusions is the process of forming aluminum profiles. Firstly according to the design, the mold is designed and manufactured. And then the heated aluminum billet is extruded from the mold by the extruder in an aluminum extrusion plant. Wellste can extrude many types of custom Aluminum extrusion profiles with different cross-sections.

Wellste owns 35 sets extrusion press Lines from 600Ton from 3800Ton, mostly imported from Taiwan, in-house aluminum billet casting can guarantee the fast delivery time and ship on time. Wellste Aluminium Extrusions with different alloy No. in 1000 series,2000 series, 3000 series, 5000 series, 6000 series, and 7000 series can be extruded. Other Alloy No. can consult our sales engineer for your special requirements.

Wellste also offers different surface treatment, which is colorful and Polishing Shiny anodizing, powder coating, electrophoresis coating, and PVDF coating. Wellste has advanced anodized line imported from Germany, which can meet your different demand with high-level quality.


Let’s Support Your Bussiness and Reduce Cost For You

Wellste can custom your Aluminum Extrusions , Also can design your own Products, Even If idea ONLY.

-Standard Packing Option-

* Long bar length profiles 3.0-6.0 meters*
* Short bar length profiles 0.3-3.0 meters*

-Loading & Shipment-

Wellste: Your Best Aluminum Extrusions Supplier

Wellste aluminium extrusion is used for a wide range of applications, including windows & doors,construction, home decoration, transportation, electronics, and industry etc. Aluminum Extrusion has many advantages that why used wildly, it is light and with low density, it can be recycled with no metal pollution and toxicity.

Wellste has 30 engineers with 10 years of aluminum industry working experience. They will help you design & prototype base on your idea. Wellste welcome custom aluminum extrusions, We also have thousands of standard Aluminum extrusion Profile for saving your Tooling Cost, Whatever standard aluminum extrusion profiles OR custom Aluminum extrusions, 12,000 types aluminum extrusions are manufacturing every year from Wellste.

Wellste Aluminium Extrusions also can be made One-stop Aluminum Fabrication, such as punching, riveting, bending and CNC machining, which will reduce your production costs and improve efficiency, to help you explore local markets and win more customers.

Whatever custom aluminum extrusions or standard aluminum extrusion profiles,our engineers can help you create from mold die to final manufacturing.

Let Wellste become your trust-worthy aluminum extrusion suppliers. You will receive a stable delivery time: 20 days Or less, 24H supplied standard loading & product report after delivery, 24 hours fast quote from Wellste sales engineers. Wellste will eliminate your concerns with its excellent service support by Wellste team.

Aluminum Extrusion: The Ultimate Guide

Aluminum Extrusion is forcing solid aluminum billet through a shaped die,which gives aluminum its unique shape.

The extruded aluminum comes out as an elongated piece. This piece has the same profile as the die opening. Aluminum billet needs a good deal of pressure to help it pass through the die.

What is Aluminum Extrusion?

Definition of Aluminum Extrusion

This process is similar to squeezing toothpaste through a tube.

The process of aluminum extrusion can be clearly understood by having a look at the picture given below.

The given example explains the extrusion process in such a simple way that even a layman can understand it.

There is no doubt that you can see some similarity between the extrusion process and the way Play Dough is made to squeeze through the press.

As you can see from the picture, the Play Dough easily passes through the opening that has a specific die shape.

Toy squezz like extrusion

Toy squeezing – Photo courtesy: aec

 Although the above principle also applies to the process of aluminum extrusion, but it is a bit more advanced and complicated .

Aluminum can be extruded by using the direct or indirect extrusion methods, including either the hot or cold extrusion. The most commonly used process for Aluminium Extrusion is the hot extrusion.

The extrusion process used at Wellste is the Direct Extrusion( Hot extrusion). Therefore, we will focus only on this method.

Direct Extrusion (Hot Extruded Process)

It is one of the most commonly used method for producing extruded shapes. you can also refer this process as forward extrusion.

It is a process that hot billet is loaded in the thick-walled container and moves in the same direction as the ram.

The ram of machinery moves and forces the hot billet (semi-finished metal form) through the die.

A dummy block is a steel disc, slightly smaller than the container. It is used to separate the hot billet and the ram, in order to protect it from heat and pressure.

The dummy block is reusable. Lubricants are widely used in order to reduce friction and provide protection to the die surfaces. Graphite is commonly used as a lubricant.

The actual process of extrusion starts when the ram applies pressure to the billet.

The billet is crushed against the die, pressure is applied. The billet need more extrusion force than required in the indirect extrusion process. This is because the billet needs to move the entire length of the container.

Extruded production theory

Extruded production theory – Photo courtesy: Clinical Gate

Therefore, the greatest force is usually required at the start of the process. The pressure eventually decreases slowly as the billet is used up.

As a result of the applied force, the billet becomes shorter and wider. When the pressure is increased, there will be no space left for the soft aluminum billet.

This will eventually force the billet out through the shaped die. The billet emerges from the other side in the form of a completely shaped profile.

The shaped profile are then sent to be cut off into smaller shapes.

Aluminum Extrusion Manufacturing Process Flow

Step 1: Tooling,

Aluminum extrusion die can be made into any specific or required profile with the help of tooling. The extrusion is usually made up of H13 steel.

The shape of the die opening is same as that of its required shape. Every profile made only by its own unique tooling.

The first step involves the creation of the required die with its specific design, The design and manufacture of extrusion dies is a highly specialized procedure that requires skilled die makers.

Basic Process of Hot Aluminium Extrusion

Basic process of aluminium extrusion – Photo courtesy: aec


Step 2:  Aluminum Billet Preheating,

Aluminium extrusions are made from solid aluminium cylinders called billets. Aluminum billet is cut to required length based on product specifications. The billet is heated to about 800°F-925°F.

Step 3: Extrusion,

After heating, The heated billet is then placed into the cradle. Substantial pressure about 500-700 MPa is applied with the help of a ram. The billet is forced through these dies.

Step 4: Maintaining temperature,

With the extrusion process being dependant on heat, it is extremely important to maintain a consistent temperature throughout this process.

It is extremely critical that the temperature is carefully monitored from the beginning of the process till the end. This step will ensure that the alloy properties like tensile strength and yield strengths are met.

Step 5: Cooling,

The extruded aluminum profile comes out as an elongated piece that has an exact shape as that of the die opening, and then cooling is the key for the stretching process.

The extruded pieces can be cooled either with water, air or both, It is finally pulled to the cooling table, and then fans are responsible for cooling.

Aluminum extrusion must cool at a specified rate, Temperatures should be measured many times in order to ensure alloy properties met.

Step 6: Stretching and Cutting,

A gripper is used on both ends of the extruded pieces. This stretches the piece until completely straight, then the stretched pieces are cut to normal length (approx. 6.0-9.0 meters).

Step 7: Aging,

In the final step, the extrusion pieces are aged. This means they are treated with heat in age ovens. The extrusion pieces are heated up to 350 degrees Fahrenheit for a minimum of 4 hours. This process further hardens the aluminum. Aged extrusions can then be sold directly. The aged extrusions can also be sent to pass through fabrication and finishing processes.

Raw Material for Aluminum Extrusion

It is important to understand here that Aluminum ingot and Aluminum billet are both interrelated.

Aluminium ingot will be formed from raw Aluminium oxide by electrolyzing manufacturing. Aluminum Billets can then be prepared later on from Aluminum ingots.

You can fully understand the manufacture of ingots and billets by the detailed and simple processes given below.

How the Aluminum Ingot is made?

Aluminum ingot is 99.7% pure Aluminum, is also names“A00” Alu. They are in compliance with LME standard.

Aluminium ingots are sourced from casting aluminum manufacturer at wellste. Therefore, we will briefly talk about the manufacture of Aluminium ingots.

Aluminum ingot of alu extrusion

Aluminum ingot -Raw material of aluminum extrusions

Step 1:  Aluminium is extracted either from its raw material, bauxite or from scrap recycle Aluminium.

The extracted aluminium metal is melted in a furnace which has a temperature of 800 ͒C. The molten aluminum is transferred to a holding furnace where the metal is casted into ingots.

Step 2: The holding furnace is tilted gradually and the hot, molten Aluminium metal is poured into moulds.

Step 3: The molten Aluminium is cooled by spraying mist water. Make sure that the metal has completely cooled down. It will form the base of your mould. More Aluminium flows into it to fill up remaining space.

Step 4: An Aluminum ingot is formed.

How the Aluminum Billet is made?

 Step 1: Aluminum ingot put into furnace to melting.

You can add various metals like Magnesium, Silicon, and Copper in order to required alloy grades in various series.

Wellste can produces Aluminium alloys of different alloy grade. 6XXX series alloys are most commonly produced for Aluminium extrusion products.

Step 2:  In this process, the smelted Aluminium is casted into billet shapes in a casting mold.

Homogenization is an essential process. It is homogenization of aluminum alloy elements.

It aims to eliminate residual stress and improve workability of aluminum billet. Making cast alloys have both chemical and structural uniformity.

The billet is in a solid form. They are available in a wide variety of alloys.

At Wellste,  Aluminium billets are 6000mm long lengths bar. Therefore, they need to be cut to shorter lengths. The billets can be cut with the help of a saw or a hot shear. These Aluminium billets have a diameter in the range of 60mm to 280mm.

Step 3: The billets can be wrapped and transported to be used in Aluminium extrusion manufacturing process.

Aluminium billets is used as raw material for our Aluminium extrusion plant. It is also supplied as a raw material to a number of other Aluminium extrusion factories.

aluminum Billets

  Aluminum Billet

Aluminum Extrusion Alloy Number Available from Wellste

If you think that you can select just any alloy for your project, then you are mistaken.

This process requires a detailed analysis as well as research. You can make use of the Wellste alloy guide, which can help you find the perfect alloy for you.

Alloy 1000 Series :

1000 series alloys belongs to the series with the most aluminium content. Their purity can reach over 99%. Alloy 1000 series has a number of advantages such as high corrosion resistance and high thermal as well as electrical conductivity. They are easily weldable. These alloys are commonly used in a wide range of industries including electrical and chemical.

Alloy 2000 Series :

2000 series alloy is roughly made up of 95% Aluminium, 4.5% copper and 0.5% other materials. These alloys have high malleability and hardness. These types of alloys are used exactly like steel. Such profiles can be conveniently turned into different shapes and sizes. It is commonly used in the aerospace field.

Alloy 3000 Series:

3000 series alloys are alloyed with manganese. The manganese elements is usually between 1-1.5%. They have higher strength than pure aluminum while maintaining good formability and corrosion resistance. These alloys are not heat treatable and are suitable only for anodizing and welding. It is used in industries and products that require rust prevention.

Alloy 5000 Series:

5000 series alloy, Magnesium is the principal element. Its main characteristics are low density, high tensile strength, high elongation and good fatigue strength. However, it can not be strengthened by heat treatment. These alloys are readily weldable. They are proven to be extremely  corrosion-resistant, especially in marine applications.

Alloy 6000 Series:

6000 alloy series take by the biggest share of the extrusion market. They mainly contain aluminium, magnesium and silicon. This group of alloys have high corrosion and oxidation resistance. They are quite easy to weld and their profiles can be easily strengthened. These properties make them suitable for construction and structural applications.

Alloy 7000 Series:

7000 alloy series are one of the strongest series alloys that are available in the market. They contain Al-Mg-Zn-Cu alloy. It is heat-treatable, has good wear resistance and weldability.  However, these alloys have poor corrosion resistance. It is therefore abundantly used in the construction, automotive and aerospace industries.

Aluminum Extrusions Design Guide

Aluminum Extrusions dimensions

Wellste produces aluminium extrusions in a wide range of sizes from small to big extrusions. Aluminum extrusions size can be measured by its cross-sectional dimension. This cross-section fits within the circumscribing circle.

The variety of shapes which can be extruded is endless. However there are a number of factors that need must be considered in aluminum extrusions profile design. These factors are as follows:

  • size: The circumscribed circle of a profile determines extrusion press size to extrude.
  • shape: The extrudability depends on the cross-sectional shape whether complicate or not.
  • aluminium alloy: Controlling alloy composition to avoid affecting Aluminum extrusion profiles surface quality, such as scratch, corrosion and uneven coloring.
  • tolerance: Limits of size variations in compliance with GB/T 5237.1 -2008.
  • extrusion ratio: The area of aluminum billet/ the area of shape.
  • Tongue ratio: width of fin/height, avoid high tongue ratio
  • Surface finishes: Different aluminum alloy number has a bit discrepancy in the ends finishing looks.
  • assembly consideration: consider the assemblability of finished products

The profiles which are designed without considering these factors will not be extruded successfully.

Aluminum Extrusions wall thickness available from Wellste

Once you have selected the aluminum alloys for extrusion, it’s time to start thinking about wall thickness.

The wall thickness depends on many factors such as the alloy and temper.

Majority of the extrusion plants and aluminum extrusion companies consider the wall dimensions of 0.04” to be thin.

At Wellste, we can carry out aluminum extrusions with 0.02” wall thickness. You can determine the minimum wall thickness that is required to successfully extrude aluminum.

The types of Aluminum Extrusion Die & cost

The types of Aluminum Extrusion Dies:

Aluminum Extrusion dies are highly engineered pieces of tooling.

They can be grouped as solid dies and hollow dies. The solid die produces solid shapes, while the hollow dies produce hollow or semi-hollow shapes.

A single die can be a combination of solid, semi-hollow or hollow shapes.

Solid aluminum extrusions dies:

A solid die usually have one or more apertures. It is through these apertures that the softened alloy can be forced or extruded.

A wide number of apertures in a single die, can be used to produce multiple extrusions simply with each stroke of the press.

Solid die extruded process

  Solid die – Photo courtesy: aec

Semi-Hollow Dies:

A semi-hollow die usually extrudes a shape that is not only nearly hollow, but also partially encloses a void.

Hollow Dies:

Hollow dies can successfully take up a variety of forms. However, the choice of design and manufacturing methods usually depends on a number of factors such as the profile, size of press and container, and production requirements.

Hollow die extruding process

Hollow die – Photo courtesy: aec

Die Costs:

Comparing other manufacturing methods of tooling, The cost to produce aluminum extrusion tooling is inexpensive relatively.

At Wellste, the dies for simple geometric shapes generally cost between USD $220 and USD  $5000.

Cost increases as the circumscribing circle diameter increases. Contact Wellste sales team that offer you fast mold cost within several hours only.

Wellste makes sure that the optimum product performance, quality and cost is achieved.

The Difference of Alloy Temper – Aging

Pure Aluminium is usually alloyed with other elements like copper, magnesium, silicon. As a result, you can find different alloys that have additional strength and unique physical attributes.

In addition to alloy selection, we will discuss alloy temper- aging as well. Aging is the treatment that metal alloy is at elevated or room temperature after quenching. This improve the metal properties of an alloy.

Aging is an important process to improve mechanical properties of aluminum alloy. At the same time, physical and chemical properties improve as well.

you will see a notation next to it such as in the case of T₁ or T₆, that means the type of aluminum alloy temper.

This notation refers to the temper grading of each alloy. In simple words the number alloted to the letter T, describes the treatment that the specific aluminium alloy has received.

When you are in the market to purchase extruded Aluminium, it would be best if you have an extensive knowledge as well as a proper guidance.

You should have a specific knowledge about which range of temper would be most appropriate,

Aluminium alloys are available in a number of different tempers. They are commonly available in two main groups, heat treatable alloys and non-heat treatable alloys.

Non-heat treatable alloys:

These include three types of temper, i.e. F, O and H tempers.

  • F Temper :

Free working condition. Mechanical properties of alloys are not specified.

  • O Temper:

Annealed, fully soft condition, suitable for processed products that have been fully annealed to obtain the lowest strength.

  • H Temper :

Cold-work hardening condition. It is used to get higher strength.

After cold hardening, it maybe followed by additional heat treatment.

Heat treatable alloys:

As the name implies, these alloys achieve their unique strength and mechanical properties by the initial process of heat treatment.

It is then subjected to cooling and finally aging. Temper for aluminum alloys is usually denoted by the letter T.

Natural aging:

T1, T2, T3 and T4 tempers are included this category. This process occurs at an ordinary temperature spontaneously, until the metal reaches a stable condition. This will make the metal hard after heat treatment.

Artificial aging:

T5, T6 and T9 are included in this category. In this process, the metal is heated for a time within the range of 2-30 hours at a low temperature of 100-200ºC.

This process is continued until the metal attains a stable state.

heating aging oven

Heat aging machine

This will eventually make the metal hard and increases its strength.

Among these tempers, T4, T5 & T6 are the most common for aluminum extrusion.

T4 is Natural aging to a basically stable condition after solution heated.

T5 is the state being cooled from an elevated temperature forming process then artificial aging.

T6 is the state of artificial aging after solution heat treatment.

Aluminum Extrusion Surface Finishes that Improve Performance

Once you have manufactured the Aluminum extrusion product,it is really important that the extrusion product have a suitable surface finishing option.

The reason is that surface finishing provides an extra protection to Aluminum extrusion, making it highly corrosion resistant and durable.

You can also enhance the appearance of Aluminum extrusion if you choose an appropriate finishing method. Following are the finishing methods available at Wellste:


Anodizing is one of the most commonly used surface treatment methods.

In the anodizing process, a layer of oxidation is added to the Aluminum extrusion products.

This oxidized layer forms the protective layer on the extruded Aluminium. The film is less likely to peel, chip or crack.

Owing to the anodizing process, the properties of Aluminium are not only enhanced, but also provide many beneficial uses.

Advantages of anodizing Aluminium:

  1. The protective oxidation layer provides resistance not only against wear and tear but also corrosion. This makes the Aluminum extrusion products quite durable.
  2. Anodizing process creates an extrusion product that has an aesthetically pleasing finish, thus providing a clear and smooth appearance. The colour tends to last longer on an anodized surface.
  3. Anodized Aluminium tends to have a greater strength.
  4. Anodized extruded products require low maintenance and are able to withstand every type of weather.


In this process, two protective layers are formed. The first layer is the protective oxide layer and the other layer is the electrophoretic coating.

Both of these layers provide stain resistance, corrosion resistance and high quality finish.

At first, an oxide layer is added by the electro -chemical method. Then, the anodized Aluminium extrusion is placed in an electrophoresis tank.

This is an electrophoretic painting  process, in which an electricity is passed so that an acrylic resin can adhere to the Aluminium surface.

Usually, the electro-coated aluminum is then placed in another tank for about 30 minutes, having a temperature range of 180-200℃, so that the Aluminium extrusion product can be completely dried.

The Aluminium extrusion products having electrophoretic treatment are extensively used for architectural purposes.

Advantages of Electrophoresis:

  • Better performance and durability after electrophoresis treatment than anodized Aluminium extrusion products. This is because the electrophoresis process creates two protective layers.
  • The most important advantage of electrophoresis is that it creates a uniform coating for the Aluminium. The thickness of the coating can be controlled simply by adjusting the electricity.
  • The electrophoretic coating is both safe and environmental friendly.
  • Electrophoresis provide coatings such as high transparent gum resin, which ensure the high decorative effect.
  • Electrophoresis-coated aluminium extrusion products are of superior quality, as they are less likely to crack and peel off.

Powder Coating

Powder Coating is to spray powder coatings onto the surface of aluminum extrusion by powder spraying equipment (electrostatic spraying machine).

Under the action of electrostatic force, powder will be evenly adsorbed on the surface and form powder coatings

Advantages of Powder Coating:

  • Powder coating produces a high quality and long-lasting protective coating for the Aluminium extrusion products.
  • Powder coating is available in a wide range of colours from simple matt, satin and gloss finishes to super matt, super gloss, and textured finishes.
  • Dents and cracks can be easily repaired simply by using a liquid coating, which precisely matches original colours. Powder coating tends to have a better colour uniformity between batches.


PVDF is yet another process which provides a great finish to the Aluminium extrusion products. It is an electrostatic spraying and liquid spraying method.

The overall performance of a PVDF coating is determined by the fact that the spraying equipment must have an excellent atomizing effect.

This will ensure that the Aluminium surface receives a uniform coating. This will provide a metallic luster and bright colored extrusion product.

Therefore, PVDF coating provides a number of beneficial properties to the Aluminium extrusion products, such as:

  • Anti-corrosion
  • Anti-frosting
  • Anti-fading
  • Anti-air pollution

Chemical Composition of Alumium Extrusion Alloy available from Wellste

Alloy No. Chemical Composition
Si Fe Cu Mn Mg Cr Zn Ti Other Al
1060 0.25 0.35 0.05 0.03 0.03 0.05 0.03 Remainder
1070 0.20 0.25 0.04 0.03 0.03 0.04 0.03 Remainder
2024 0.50 0.50 3.8~4.9 0.30~0.9 1.2~1.8 0.10 0.25 0.15 0.15 Remainder
2A12 0.50 0.50 3.8~4.9 0.30~0.9 1.2~1.8 0.30 0.15 0.10 Remainder
3003 0.60 0.70 0.05~0.2 1.0~1.5 0.10 0.15 Remainder
5052 0.25 0.40 0.10 0.10 2.2~2.8 0.15~0.35 0.10 0.15 Remainder
5A02 0.40 0.40 0.10 0.15~0.4 2.0~2.8 0.15 0.15 Remainder
5083 0.40 0.40 0.10 0.4~1.0 1.0~4.9 0.05~0.25 0.25 0.15 0.15 Remainder
5754 0.40 0.40 0.10 0.50 2.6~3.6 0.30 0.20 0.15 0.15 Remainder
6005 0.6~0.9 0.35 0.10 0.10 0.4~0.6 0.10 0.10 0.10 0.15 Remainder
6005A 0.5~0.9 0.35 0.30 0.50 0.4~0.7 0.30 0.20 0.10 0.15 Remainder
6013 0.6~1.0 <0.5 0.6~1.1 0.2~0.8 0.8~1.2 <0.25 Remainder
6060 0.3~0.6 0.1~0.3 0.10 0.10 0.35~0.6 0.05 0.15 0.10 0.15 Remainder
6061 0.4~0.8 0.70 0.15~0.4 0.15 0.8~1.2 0.04~0.35 0.25 0.15 0.15 Remainder
6063 0.2~0.6 0.35 0.10 0.10 0.45~0.9 0.10 0.10 0.10 0.15 Remainder
6082 0.7~1.3 0.50 0.10 0.4~1.0 0.6~1.2 0.25 0.20 0.10 0.15 Remainder
6351 0.7~1.3 0.50 0.10 0.4~0.8 0.4~0.8 0.20 0.20 0.15 Remainder
6101 0.3~0.7 0.50 0.10 0.03 0.35~0.8 0.03 0.10 0.10 Remainder
6101A 0.3~0.7 0.40 0.05 0.4~0.9 ~ 0.10 Remainder
6101B 0.3~0.6 0.1~0.3 0.05 0.05 0.35~0.6 0.10 0.10 Remainder
6463 0.2~0.6 0.15 0.20 0.05 0.45~0.9 0.05 0.15 Remainder
7003 0.30 0.35 0.20 0.30 0.5~1.0 0.20 5.0~6.5 0.20 0.15 Remainder
7005 0.35 0.40 0.10 0.2~0.7 1.0~1.8 0.06~0.2 4.0~5.0 0.01~0.06 0.15 Remainder
7020 0.35 0.40 0.20 0.05~0.5 1.0~1.4 0.1~0.35 4.0~5.0 0.15 Remainder
7021 0.25 0.40 0.25 0.10 1.2~1.8 0.05 5.0~6.0 0.10 0.15 Remainder
7075 0.40 0.50 1.2~2.0 0.30 2.1~2.9 0.18~0.28 5.1~6.1 0.20 0.15 Remainder

Mechanical Properties of Aluminum Extrusion Alloy available from Wellste

Alloy No. Temper Wall Thickness/mm Tension test at room temperature
 Yield  Rp0.2/Mpa Elongationa.b/% Hardness
A A50mm
Not less than
1060 O 60~95 15 22 20
H112 60 15 22 20
1100 O 75~105 20 22 20
H112 75 20 22 20
2024 O、H111 ≤250 ≤150 12 10 47
T3 ≤15 395 290 8 6 120
T3510 >15.00~50.00 420 290 8 120
T8 ≤50.00 455 380 5 4 130
2A12 O ≤245 12 10
T4 ≤5.00 390 295 8
>5.00~10.00 410 295 8
>10.00~20.00 420 305 8
>20.00~50.00 440 315 10
3003 H112 95 35 25 20 30
5052 H112 170 70 15 13 47
5A02 O、H112 ≤245 12 10
5083 H112 270 125 12 10 70
5754 H112 ≤25.00 180 80 14 12 47
6005 T1 ≤12.50 170 100 11
T5 ≤6.30 250 200 7
>6.30~25.00 250 200 8 7
T4 ≤25.00 180 90 15 13 50
T6 Solid
≤5.00 270 225 6 90
>5.00~10.00 260 215 6 85
>10.00~25.00 250 200 8 6 85
≤5.00 255 215 6 85
>5.00~15.00 250 200 8 6 85
6005A T5 ≤6.30 250 200 7
>6.30~25.00 250 200 8 7
T4 ≤25.00 180 90 15 13 50
T6 Solid
≤5.00 270 225 6 90
>5.00~10.00 260 215 6 85
>10.00~25.00 250 200 8 6 85
≤5.00 255 215 6 85
>5.00~15.00 250 200 8 6 85
6060 T4 ≤25.00 120 60 16 14 50
T5 ≤5.00 160 120 6 60
>5.00~25.00 140 100 8 6 60
T6 ≤3.00 190 150 6 70
>3.00~25.00 170 140 8 6 70
T66 ≤3.00 215 160 6 75
>3.00~25.00 195 150 8 6 75
6061 T4 ≤25.00 180 110 15 13 65
T5 ≤16.00 240 205 9 7
T6 ≤5.00 260 240 7 95
>5.00~25.00 260 240 10 8 95
6063 T4 ≤25.00 130 65 14 12 50
T5 ≤3.00 175 130 6 65
>3.00~25.00 160 110 7 5 65
T6 ≤10.00 215 70 6 75
>10.00~25.00 165 160 8 6 75
T66 ≤10.00 245 200 6 80
>10.00~25.00 225 180 8 6 80
6082 O、H111 ≤160 ≤110 14 12 35
T4 ≤25.00 205 110 14 12 70
T5 ≤5.00 270 230 6 90
T6 ≤5.00 290 250 6 95
>5.00~25.00 310 260 10 8 95
6351 O ≤160 ≤110 14 12 35
T4 ≤25.00 205 110 14 12 67
T5 ≤5.00 270 230 6 90
T6 ≤5.00 290 250 6 95
>5.00~25.00 300 255 10 8 95
6101A T6 ≤50.00 200 170 10 8 70
6101B T6 ≤15.00 215 160 8 6 70
6463 T4 ≤50.00 125 75 14 12 46
T5 ≤50.00 150 110 8 6 60
T6 ≤50.00 195 160 10 8 74
7003 T5 310 260 10 8
T6 ≤10.00 350 290 8 110
>10.00~25.00 340 280 10 8 110
7005 T5 ≤25.00 345 305 10 8
T6 ≤40.00 350 290 10 8 110
7020 T6 ≤40.00 350 290 10 8 110
7021 T6 ≤20.00 410 350 10 8 120
7075 T6
≤25.00 530 460 6 4 150
>25.00~60.00 540 470 6 150

Aluminum Extrusion Quality Assurance

Wellste is committed to provide high quality extruded products. For this purpose, it is made sure that each and every production stage of extrusion process is supported with the most advanced quality control methods.

Wellste provides with optimum solutions and state-of-the art equipment to you.

This is followed by continuous staff training which results in the minimal errors and technical flaws.

Each stage of the extrusion process is carried out, based on the latest quality certifications such as ISO 9001 and ISO 14001.

Wellste prides itself on vigorous on-line monitoring of aluminum extrusion processes and the careful inspection of extruded products. Moreover, it is made sure that only raw materials of the best quality are used.

● Chemical component test

The main purpose of the chemical components test is quality assurance of aluminum alloy, we provide a certification for the chemical composition of the alloy.

This is usually done by the chemical analysis of the elements that are present in the aluminum alloy.

Spectrum analyzer

Spectrum analyzer

For this purpose, a direct computerized reading is taken from the optical emission spectrometer.

●  Mechanical properties test

Wellste is also equipped with a highly trained staff that works in testing labs. These labs have straightness checking and dimension testing facility.

The tensile testing machine proof stress % elongation and webster hardness, that are an important part of the mechanical properties tests.

Other tests include the flattening test, bend test and flaring test. Both of these tests are used to ascertain not only the quality of the process but also that of the product.

Mechanical properties such as electrical conductivity and mechanical strength are also measured in the in-house labs with special state of the art equipment.

● Measure instruments

The most important part of the quality assurance is to make sure that all the measuring instruments are carefully inspected and continuously renewed.

Moreover, all the instruments need to be calibrated before being used.

Measure instruments Venier caliper

Measure instruments: Venier caliper

As a result of modern instruments, you can perform hundreds of measurements with just a single scan.

This means that you can conduct consistent measurement of extruded profiles in just a few seconds.

It could eventually result in a number of quality checks in minimum time.

● Visual Inspection

Wellste has a highly trained staff who have been given a special training in quality assurance. They help to carefully monitor each and every stage of the extrusion process, by using most advanced equipment. Our engineers ensure that the process is carried out by the continuous statistical analysis and traceability of data, from start of the process up to the finished product and its final packing.

Visual Inspection before packing

 Visual Inspection before packing

Our unique operational audit programs ensure that all the products are handled with great care, so as to prevent any kind of damage during the manufacturing and packaging process. In the packaging process, a special bar code label is given to each packaged product. This bar code has all the details about the extruded product such as the section number, bundle number, bundle weight, number of pieces, etc. This will eventually help in the final inspection and traceability procedure.

Aluminum Extrusion Packing from Wellste

Wellste provide standard packing method for both long bar lengths aluminium extrusion and small & short aluminium extrusion.

  • Long Bar lengths Aluminum Extrusion

For long bar lengths Aluminum extrusions, extrusions are individually covered with protective film that adhere to the profile for finish protection.

And then the extrusions are wrapped with shrink film, brown paper or craft paper. After this, extrusions will be put into a custom wooden case or wooden crate for further protection.

long bar Aluminum profiles packing

  • Small & Short Component Aluminum Extrusion

For small & short component aluminum extrusions, extrusions are wrapped with  EPE foam  also can be sealed in a loose poly sleeve for finish protection.

Then  aluminum  extrusions  will be put into custom cardboard boxes. After this, can be loaded in  wooden crate or wooden case.

short aluminum parts packing

  • Custom your own packing

Wellste also provide custom packing. If you have your own packing way, please tell us to see the feasibility. We will try our best to meet your demand.

Wellste Aluminum Extrusion Price List

The final price of aluminum extrusion is actually comprised of two main components.  One is the Aluminum Ingot price and the other one is the extrusion and surface fabrication price.

The price of Aluminum ingot is directly dependent on SMM (Shanghai Metal Market).

This price tends to fluctuate almost everyday, owing to the changing market demand.

On the other hand, the price of extrusion process is based not only on the difficulty of the aluminum extrusion profiles cross-sections but also on the extrusion press type.

The price of extrusion process will not change like that of the Aluminum Ingot. However, the prices can show fluctuations due to the increase in labor cost, management cost, etc.

Our professional team at Wellste will offer you a favorable price within 24 hours. Feel free to contact us as soon as possible, if you do not want to miss a chance to get a fair price.

The Various Application of Aluminum Extrusion

Aluminum extrusions have a wide range of applications. A compilation of these applications has been made to help you better understand the importance and usefulness of Aluminum extrusion.

 Building and construction

Extruded aluminum products are widely for construction purposes, owing to their versatility.

Moreover, extruded aluminum section is stiff and lightweight and still looks attractive uncoated.

Lightweight extruded aluminum paneling and guide rails are common in trailer, shed, and furniture construction, however, denser structures are also becoming common.

LED Lighting fixtures, elevator shafts, and stairwells all employ many different applications of extruded aluminum.

Integrated extruded aluminum designs are featured in almost all areas of building construction including plumbing, railings and balustrades to building facades and bleachers.

  • Windows and doors

Windows and doors is one usage for both standard and custom aluminum extrusion products. The various shape of aluminum extrusions make them ideal to be used windows & doors profiles, They are also commonly used to in windows frame section, as tents, portable tables, folding chairs and others.

  • Curtain wall

Aluminum extrusions are also used to building permanent and temporary structures Frames.

The feature of lightweight, durable and quite easy to work with. They can be used for projects such as playhouses, other outdoor facade structures and others.

Its strength, low density, corrosion resistance and design flexibility makes it an ideal material for building applications, which range from a louvre blade in an air conditioning system to a structural support in a roofing system.

  • Home decoration

The finishes of Aluminum extrusions can makes shined almost chrome-like finish.

Channeled aluminum can be used as a decorative trim. It is usually used on vehicles, buildings, furniture and in home decor applications.

  • Greenhouse Structures

You can customize your new or existing greenhouse roof and ventilation system with our aluminum extrusions. These extrusions have been manufactured from 6063-grade aluminum, so that it can provide durability to roof, sidewall or end-wall vents of your structures.


Aluminum extrusions are being abundantly used in many industries. It is a common material of choice for equipment like workbenches, inspection tables and carts, as it is easy to cut and drill, lightweight and cost-efficient. Aluminum extrusions are also used for T-slot aluminum profiles, such as machine guards, so that people working nearby can be protected.

Standard Aluminum Profile

 Standard Aluminum Profile

Machinery and machine tools

Machinery and machine tools made from aluminum helps to meet higher efficiency demands, while standing up to wear and tear. Extruded aluminium is quite easy to machine than stainless steel. This helps to reduce aluminium tooling costs.

  • Working table and production line

Working tables and production line manufactured here are specially designed to meet various operation requirement of assembly line, tool room, maintenance departments and training centers.

  • Laboratory table

Aluminium solutions provide medical devices and equipment with tight tolerance.

They also help with rigorous cleaning and sterilization requirements.

This is because aluminum is non-toxic, strong, easily machined, recyclable and does not rust after frequent cleaning.

Aluminum extrusions are commonly used for the following:

  • X-ray machines
  • Dialysis equipment
  • Hospital beds
  • Dentist chairs
  • Medical instruments
  • Wheelchairs


  • Electronic Enclosure

The extruded aluminum electronic enclosures can be used free standing or surface mounted.  Extruded aluminum enclosures provide the perfect framework for valuable electronics and instrumentation, as they are strong and lightweight.

  • Thermal solutions

Aluminum extrusions are also a cost-effective solution for majority of electronic cooling applications. Many aluminum extrusion profiles are used for heat sink manufacturing and other aluminum applications.


Aluminum plays a very vital role in the auto industry. The metal provides resistance towards temperature, moisture, and the corrosiveness from road salt.

Owing to its high strength-to-weight ratio, aluminum extrusions are used to manufacture body and frame components, Various color surface of aluminum extrusion is good choice for RV aluminum trim.

  • Car

Being a light metal with excellent energy absorption properties, aluminum extrusion products are used in passenger cars and commercial vehicles. This makes the car lighter, safer and 100% recyclable. This ultimately means lower fuel consumption and less emissions.

  • Bus

Aluminum extrusion are similarly used in buses. This contributes to cost savings and light weight, which eventually leads to a greener environment.

  • Trailer

Trailers made with aluminium components are quite light and thus allow a heavier load (more freight) to be carried. These trailers will then use less fuel, thus making them more environmentally conscious.

  • Train

Aluminium extrusions form the main material that is used in the construction of train bodies. They are used in body sides (side walls), roof and floor panels and cant rails, that connect the floor of the train to the side wall.

As a result, its lightweight and a uniform and smooth surface is the main reason to widely used on train industry.

Moreover, there is a drastic reduction of carbon dioxide emissions, thereby improving the environmental impact.


Aluminum extrusions are major component of the energy industry. Nowadays, these products are used from electric power chargers to oil and gas installations to industrial wind turbines.

  • Solar

The solar industry is utilizing aluminium solutions in search of better systems for safe and sustainable energy.

PV solar Frame and structural frames for solar projects can also be provided.

  • Wind

Wind power industry uses aluminium in applications on land as well as at sea.  Aluminium is perfect in harsh outdoor conditions, due to its efficient corrosion resistance. Moreover, it is lightweight material with high durability, low maintenance costs, increased cost efficiency.

  • Oil & Gas

Aluminium is a major material that is used in offshore and marine construction. Specialist design support and manufacture solutions are provided in structural applications, such as floors, framework, housing modules and helipads.


Aluminum extrusions is a modern technology that has turned out to be a great asset to a number of industries.

Its special features are quite unique and unlike any other metal. You can hardly find a metal that is lightweight, corrosion resistant, strong, stiff as well as easy to fabricate and manufacture.

All these properties make it an ideal choice among customers. Therefore, it is used for a wide range of applications.

Moreover, its popularity is growing day by day. There is no doubt that in the future, this valuable and unique metal might find its way in many more applications and replace some other metals.

As a dedicated manufacturer of aluminum extrusions for more than 20 years, Wellste can OEM and custom any industry products based on your specification details, From extruding to final surface finishes, We will supply one stop customize fabrication solution for all your need that can save your whole purchasing.

Order or no order, contact our sales engineers to discuss.

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