Alloy 3003 Color Coated Aluminum Coil

Alloy 3003 Color Coated Aluminum Coil is based on aluminum Alloy AA3003. It contains about 1.0-1.5% manganese and small silicon/iron traces. Renowned for its excellent formability, it is easily rolled, drawn, or spun into various shapes.

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Chemical Composition of Alloy 3003 Color Coated Aluminum Coil

Element of alloy 3003	Content (%)
Aluminum (Al)	97.0-98.5
Manganese(Mn)	1.0-1.5
Silicon(Si)	≤0.6
Iron(Fe)	≤0.05
Cooper(Cu)	≤0.05
Zinc(Zn)	≤0.10
Other Elements	≤0.05
Total Impurities	≤0.35

Key Properties of Alloy 3003 Color Coated Aluminum Coil

Mechanical Properties of Alloy 3003 Color Coated Aluminum Coil

Property of alloy 3003	Typical Value (Temper: O)	Typical Value (Temper: H12)	Typical Value (Temper: H14)	Typical Value (Temper: H16)	Typical Value (Temper: H18)
Tensile Strength	90-140 MPa	140-185 Mpa	165-205Mpa	185-225Mpa	≥215Mpa
Yield Strength (0.2% offset)	≤55 MPa	110-145 MPa	135-170 MPa	160-195 MPa	≥185Mpa
Elongation at Break	20-25%	8-12%	6-10%	4-8%	3-6%
Hardness (Rockwell B)	35-45HB	35-45HB	45-65HB	55-75HB	65-85HB

Temper Designations: Commonly used in the O (annealed) temper for maximum ductility or H12/H14 (strain-hardened) for moderate strength improvements.

Physical Properties of Alloy 3003 Color Coated Aluminum Coil

Property	Value
Density	2.7 g/cm³
Melting Point	643–657°C
Thermal Conductivity	209 W/m·K
Electrical Conductivity	61% IACS
Thermal Expansion Coefficient	23.1×10⁻⁶/°C (20–100°C)

Advantages of Alloy 3003 Color Coated Aluminum Coil

Corrosion Resistance

3003 aluminum alloy has excellent corrosion resistance to atmospheric, freshwater, seawater, food, organic acids and other media, especially in dilute acid environments.

Machinability

The use of cold processing techniques such as stamping and stretching can improve mechanical properties, and has good formability and weldability, making it suitable for the manufacturing of complex parts. ‌

Applicable Scenarios

Widely used in fields such as architectural decoration (doors and windows, curtain walls), transportation (automotive components, train bodies), electronic appliances (radiators, cables), and packaging industry (cans).

Physical Properties

The plasticity is high in the annealed state, and it still maintains good plasticity during semi cold work hardening, but the plasticity decreases after complete hardening.

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Standards and Specifications of Alloy 3003 Color Coated Aluminum Coil

ASTM	B209 (sheet/plate), B221 (extrusions), B233 (wire), B479 (foil).
ISO	ISO 26204 (alloy designations), ISO 6892 (mechanical testing).
UNS	A91060 (United States Numbering System).