Acero inoxidable martensítico
ASTM A705 Grade XM-12 Age-Hardening H1150MMedium Carbon Steel
ASTM A471 Class 4 Heat-TreatedChromium Molybdenum Steel
ASTM A471 Class 3 Heat-TreatedNickel Chromium Steel
ASTM A470 Grade C Class 6 Normalized and Quenched and Tempered