Yier steel
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3003 aluminum coil
Building Decoration:Produce roof waterproofing boards, curtain wall linings and ceiling keels, with weather resistance suitable for outdoor applications.
Container Manufacturing:Processed into base materials for food storage tanks, chemical liquid turnover boxes and beer & beverage cans.
Heat Dissipation Equipment:Manufacture auto radiators and air conditioner condenser fins, balancing thermal conductivity and structural strength.
Pipeline Insulation:Used as outer protective boards for thermal pipeline insulation, moisture-proof, corrosion-resistant and easy to install.
Home Appliance Accessories:Make refrigerator door frames and washing machine shell supports to meet light structural needs

2.Product Advantages
Higher Strength:Al-Mn alloy material, 30% higher strength than 1060 pure aluminum coil, with strong deformation resistance.
Excellent Corrosion Resistance:Acid, alkali and moisture resistant, no rusting in outdoor use, no frequent maintenance required.
Good Processability:Easy to cut, bend and weld, can be stamped into complex shapes to meet diverse production needs.
Strong Forming Stability:No rebound after processing, high dimensional accuracy, reducing the cost of subsequent correction procedures.
Outstanding Cost-Effectiveness:Better performance than pure aluminum, lower price than high-strength alloy aluminum coils such as 5052, suitable for bulk procurement.

3.Technical Parameters
Parameter | Specification Range | Standard / Notes |
Alloy Grade | 1060, 3003, 5052, ASTM B209 | GB/T / EN / ASTM |
Coil Thickness | 0.2–5.0 mm | ±0.02 mm tolerance |
Coil Width | 500–1800 mm | ±1 mm tolerance |
Inner Diameter | 508 / 610 mm | Standard size |
Outer Diameter | 800–1600 mm | Custom available |
Tensile Strength | 80–300 MPa | GB/T 228.1 standard |
Hardness | HB 20–80 | After rolling |
Elongation | ≥15% | GB/T 228.1 standard |
Surface Treatment | As-rolled, Anodized | Custom: Sprayed |
4.Production process
Alloy Melting: Melt electrolytic aluminum ingots with manganese and other alloying elements in furnace, precisely control composition ratio, and cast into aluminum billets

5.FAQ
Q1:What are the differences between different tempers of 3003 aluminum coil?
A1:Temper O is annealed with the best ductility; Tempers H12/H14/H18 are hardened, with hardness and strength increasing in turn, and ductility decreasing in turn.
Q2:Can 3003 aluminum coil be used in food contact scenarios?
A2:Yes, its manganese content meets food-grade standards, no harmful substances precipitate on the surface, suitable for food container manufacturing.
Q3:What welding methods are available for 3003 aluminum coil?
A3:TIG welding and resistance welding are recommended. No special welding wire is needed during welding, and the weld strength is close to that of the base metal, not easy to crack.
Q4:What should be noted for the storage of 3003 aluminum coil?
A4:Store in a dry and ventilated warehouse, avoid storing with acid and alkali substances; the stacking height should not exceed 3 meters to prevent deformation of the bottom coil.
If you want to know more, please feel free to contact us.