JIS 3003 Aluminum Alloy – H18 Grade (H4090) – Excellent Corrosion Resistance & Strength

Aluminum JIS 3003 is a popular alloy that offers customers very good atmospheric corrosion resistance and moderate strength. Aluminum 3003 offers good machinability for aluminum alloys, though it is not heat treatable. Unlike other aluminum alloys, JIS 3003 is weldable by conventional welding methods. It also takes cold and hot working well and has generally better mechanical properties when compared to 1000 series aluminum alloys.

Properties

General

Property	Value	Comment
Density	2.72 - 2.73 g/cm³	Typical for Wrought 3000 Series Aluminium

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	69.5 - 70.0 GPa			Typical for Wrought 3000 Series Aluminium
Elongation	3.0 %	H18	JIS H4090
Plane-Strain Fracture Toughnes	22.0 - 35.0 MPa·√m			Typical for Wrought 3000 Series Aluminium
Poisson's ratio	0.33 [-]			Typical for Wrought 3000 Series Aluminium
Shear modulus	25.0 - 26.0 GPa			Typical for Wrought 3000 Series Aluminium
Tensile strength	186.0 MPa	H18	JIS H4090
Yield strength	167.0 MPa	H18	JIS H4090

Thermal

Property	Value	Comment
Coefficient of thermal expansion	2.2e-05 - 2.4e-05 1/K	Typical for Wrought 3000 Series Aluminium
Melting point	629.0 - 654.0 °C	Typical for Wrought 3000 Series Aluminium
Specific heat capacity	893.0 - 920.0 J/(kg·K)	Typical for Wrought 3000 Series Aluminium
Thermal conductivity	154.0 - 193.0 W/(m·K)	Typical for Wrought 3000 Series Aluminium

Electrical

Property	Value	Comment
Electrical conductivity	23000000.0 - 29000000.0 S/m	Typical for Wrought 3000 Series Aluminium
Electrical resistivity	3.4e-08 - 4.2e-08 Ω·m	Typical for Wrought 3000 Series Aluminium

Technological properties

Property
Processing history	H18
Workability	Good workability.

Property

Processing history

H18

Workability

Good workability.

JIS 3003 O Aluminum Alloy – Superior Corrosion Resistance & Weldability JIS H4100 2024-O Aluminum Alloy – High Strength, Aircraft‑Grade Performance

Metal