Alloys Handbook
Back to catalog

EN AC-45300

Al Si5Cu1Mg

High-strength heat-treatable alloy. Alternative to AlSi7Mg.

Alloy Group
AlSiCu
Recyclability
100%

Chemical Composition (%)

Balance is Al
Element Min Max
Si 4.50 5.50
Fe — 0.55
Cu 1.00 1.50
Mn — 0.55
Mg 0.40 0.65
Cr — 0.05
Ni — 0.25
Zn — 0.15
Pb — 0.15
Sn — 0.05
Ti — 0.20
OtherEach — 0.05
OtherTotal — 0.15

Mechanical Properties

Temper Method Rm Rp0.2 A% HBW
T6 Permanent mold 270 220 3 90

Quick Applications

  • Suspension parts
  • Brackets

Corrosion Resilience

Overall: Fair to Good
freshwater
Excellent
saltwater
Fair
industrial
Good
acidic
Limited