Alloy Usage Guidelines

PT Alloy Casting Fabrication Die Striking Machining
90/10 Pt/Ir Satisfactory Excellent Excellent Poor
95/5 Pt/Ir Poor Excellent Excellent Poor
Pt 950/Co Excellent Good Good Good
Pt 950/Ru Good Excellent Good Excellent
Pt 950/Heat treatable Excellent Good Excellent Excellent

 

Platinum Alloy Hardness HV Strength PSI
90/10 Iridium 110 HV 55,000 PSI
95/5 Iridium 80 HV 40,000 PSI
Platinum/Cobalt 135 HV 64,000 PSI
Platinum/Ruthenium 135 HV 66,000 PSI
Pt 950/Heat treatable 240-330 HV Variable 100,000 PSI +