Alloy 5083 Pre painted Aluminum Coil

Alloy 5083 Pre painted Aluminum Coil is based on the material Aluminium Alloy 5083. Alloy 5083 Aluminum Plate is a non-heat-treatable, aluminum-magnesium alloy (Mg: 4.0–4.9%) known for exceptional corrosion resistance, especially in marine and saltwater environments. It offers good weldability and formability, making it ideal for structural components, shipbuilding, pressure vessels, and cryogenic applications.

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Chemical Composition of Alloy 5083 Pre painted Aluminum Coil

Element of Alloy 5083	Content (%)
Aluminum (Al)	Balance
Magnesium(Mg)	4.0-4.9
Manganese(Mn)	0.40-1.0
Silicon (Si)	≤0.40
Iron (Fe)	≤0.40
Zinc(Zn)	≤0.25
Copper(Cu)	≤0.10
Chromium(Cr)	≤0.05-0.25
Titanium(Ti)	≤0.20
Other(each)	≤0.05
Other(total)	≤0.15

Key Properties of Alloy 5083 Pre painted Aluminum Coil

Mechanical Properties of Alloy 5083 Pre painted Aluminum Coil

Property of alloy 5083	Temper: O	Temper: H32	Temper: H34	Temper: H36	Temper: H38
Tensile Strength	≥275MPa	≥315MPa	≥350MPa	≥370MPa	≥390MPa
Yield Strength (0.2% offset)	≥125MPa	≥245MPa	≥275MPa	≥305MPa	≥335MPa
Elongation at Break	≥16%	≥8%	≥6%	≥5%	≥4%
Hardness (Rockwell B)	No work hardening	Low work hardening	Medium work hardening	High work hardening	Very high work hardening

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 5083 Pre painted Aluminum Coil

Property of alloy 5083	Value
Density	2.66 g/cm³
Melting Range	577–610°C
Thermal Conductivity	118 W/m·K
Electrical Conductivity	35% IACS
Thermal Expansion Coefficient	13.1–14.0×10⁻⁶/°C (20–100°C)
Modulus of Elasticity	69 GPa
Poisson's Rate	0.33
Specific Heat Capacity	0.215 cal/g·°C
Corrosion Resistance	Excellent in atmospheric, seawater, and chemical environments.
Machinability	Moderate
Weldability	Good

Advantages of Alloy 5083 Pre painted Aluminum Coil

Corrosion Resistance

5083 aluminum alloy is mainly composed of magnesium element (4.0% -4.9%), which has excellent corrosion resistance, especially in environments containing chloride ions. It is widely used in marine equipment such as ship decks and cabin walls.

Weldability

This alloy can be efficiently welded through various processes such as argon arc welding and laser welding, and can still maintain good mechanical properties after welding. It is suitable for the manufacturing of structures such as automobile bodies and aircraft fuel tanks.

Cold Processing Performance

Thin walled parts such as oil tanks and lubricating oil conduits can be processed through deep drawing technology. The plasticity is better in the semi cold work hardening state, but it decreases after cold work hardening.

Moderate Intensity

At room temperature, the tensile strength can reach 275-350MPa, and the yield strength is ≥ 215MPa. It is suitable for manufacturing structural components such as liquid containers and pressure vessels that require a certain load-bearing capacity. ‌