Chalco Aluminum 4B91 T4 T6 auto structural part aluminum profile includes profiles of various shapes and specifications, such as angle aluminum, flat aluminum, round tubes, square tubes, etc. 4B91 aluminum profiles are mainly used in the manufacture of body structural parts, such as door frames, roofs Frames, chassis frames, etc.
Why choose Chalco 4B91 T4 T6 auto structural part aluminum profile?
Chalco production capacity
Chalco Aluminum has an aluminum alloy profile extrusion production line, and can produce seamed aluminum tubes and seamless aluminum tubes at the same time, which can meet the production requirements of various automotive profiles.
Automotive IATF16949 standard
Chalco Aluminum has passed the requirements of the automotive IATF16949 standard audited by BSI (British Standards Institution), providing quality compliance for continuously expanding the automotive product market and achieving high-quality development.
Well-known brand material certifications
Serving Tesla, Ford, Shanghai Automobile, Weilai Automobile, BAIC New Energy, Changan Automobile and other famous new energy automobile manufacturers, confirmed the material certification relationship, and completed the parts of many automobile factories such as BAIC New Energy and Weilai Automobile Model car plate material certification.
Specs of 4B91 T4 T6 auto structural part aluminum profile
| Shape | Size(mm) | Wall thickness(mm) | Length(mm) |
| Square tube | 20×20, 25×25, 30×30 | 1.0-2.0 | customizable |
| Round tube | 10, 12, 14 | 1.0-2.0 | customizable |
| Angle aluminum | 20×20, 25×25, 30×30 | 1.0-2.0 | customizable |
| T profile | 20×20×2, 25×25×2, 30×30×2 | - | customizable |
| U profile | 20×10×2, 25×12×2, 30×15×2 | - | customizable |
Chemical composition of 4B91 T4 T6 auto structural part aluminum profile
| Element | Composition(%) |
| Si | 0.5 |
| Fe | 0.5 |
| Cu | 0.1 |
| Mn | 0.2 |
| Mg | 1.2 |
| Cr | 0.15 |
| Zn | 0.15 |
| Ti | 0.15 |
| other(each) | ≤0.05 |
| other(total) | ≤0.15 |
| Al | Remainder |
Mechanical property of 4B91 T4 T6 auto structural part aluminum profile
| Alloy | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) | Hardness (HB) |
| 4B91 T4 | 250-280 | 150-190 | 12-16 | 70-80 |
| 4B91 T6 | 320-360 | 260-300 | 8-10 | 95-105 |
Features of 4B91 automotive aluminum profiles
Lightweight and high-strength: 4B91 aluminum alloy profile has high strength and hardness, and is light in weight, about 1/3 lighter than traditional steel, so it can reduce the weight of the whole vehicle, improve fuel economy and reduce energy consumption.
Good processability: 4B91 aluminum alloy profiles have good formability and are easy to process into profiles of various shapes, which can meet the processing needs of automotive components of different shapes and sizes.
Good corrosion resistance: 4B91 aluminum alloy profile is easy to form an oxide film on the surface, which has good corrosion resistance and can maintain stable performance in harsh environments.
Good aesthetics: 4B91 aluminum alloy profiles can present a variety of colors and textures after surface treatment, and have good decorative properties, which can improve the overall aesthetics of the car.
Environmental protection: 4B91 aluminum alloy profiles can be recycled and reused, which meets environmental protection requirements. Compared with traditional steel, it has less impact on the environment.
Usage of 4B91 automotive aluminum profiles
Body structure: 4B91 aluminum alloy profiles can be used to support and strengthen the body structure, such as doors, roof, front, middle and rear frames and other parts.
Chassis and suspension system: 4B91 aluminum alloy profiles can be used to support and strengthen the chassis and suspension system, such as front and rear suspension arms, frame, stabilizer bar and other parts.
Engine and transmission: 4B91 aluminum alloy profiles can be used for radiator brackets, lifting lugs and other parts of engines and transmissions.
Interior and decoration: 4B91 aluminum alloy profiles can be used for automobile interior and decoration, such as door handles, baffles, pedals and other parts.
Precautions for the use of 4B91 automotive aluminum profiles
Precautions for processing: 4B91 aluminum alloy profiles have good formability, but care should be taken to avoid excessive deformation or stretching during processing, and to avoid problems such as cracks or deformation of the profiles.
Surface treatment: the surface of 4B91 aluminum alloy profiles needs to be properly treated to improve its corrosion resistance and aesthetics. When choosing a surface treatment, the environment of use and the intended appearance need to be considered.
Precautions for protection: 4B91 aluminum alloy profiles need to be protected during storage and transportation to avoid mechanical damage or scratches, etc., to avoid scratches or damage on the surface of the profiles.
Precautions for the use environment: 4B91 aluminum alloy profiles need to avoid contact with chemical substances or high-temperature environments in the use environment, so as not to affect its performance and service life.
Installation precautions: when installing 4B91 aluminum alloy profiles, it is necessary to pay attention to the degree of coordination with other parts, so as to avoid improper installation or uneven force, which will affect the performance and safety of the vehicle.
