GD-AlSi9Cu3

Material No.

ENAC-AlSi9Cu3(Fe) 

DIN material No.

3.2163

Abbreviation

GD-AlSi9Cu3 

Description

Cast aluminium

Composition
Alloy constituents [%]

Si: 8 – 11
Cu: 2 – 4
Fe: max. 1.3
Zn: max. 1.2

Density [g/cm³]

2.76

Yield point
Rp0.2 [N/mm²] min. – max.

140

Tensile strength
Rm [N/mm²]  min. – max.

240

Elongation after fracture
A [%]  min. – max.

 < 1

Brinell hardness
HB reference value

80

Corrosion resistance
in normal atmosphere

Poor

Corrosion resistance
in coastal atmosphere

Poor

Machinability

Very good

Weldability

Very good

Anodising capability

Not suitable

High-gloss polishing,
mechanical

Very good

Main uses

Aluminium castings, e.g. pressure casting
Complicated machine construction and engine parts for the automotive industry, electrical engineering