15-5PH, UNS 15500, 1.4545, X5CrNiCuNb15-5 martensitic precipitation hardened, chromium-nickel-copper stainless steel acc. to AMS SPEC.
17-4PH, 1.4542, X5CrNiCuNb16-4, AISI 630, UNS S17400 1.4548.4 precipitation hardened stainless steel acc. to SIEMENS TLV 9239 01, 10705 BX, EN 10088-1, ASTM A564, ABS 5692 D
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