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

Element	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

Mechanical Properties

Property	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

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

Highest Purity in 1xxx Series

Reduces contamination risks in sensitive applications (e.g., pharmaceuticals, high-purity electronics).

Unmatched Formability

Ideal for ultra-thin gauge products (e.g., foil as thin as 6 microns) and complex geometries.

Cost-Effective Purity

Lower production cost than specialty high-purity alloys (e.g., 1100-H18) while maintaining critical properties.

Environmental Friendliness

100% recyclable with minimal energy loss, aligning with sustainability goals.

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Standards and Specifications

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).