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5160 - Knife Steel FAQ - A steel popular with forgers, it is popular now for a variety of knife styles, but usually bigger blades that need more toughness. It is essentially a simple
spring steel with chromium added for hardenability. It has good wear resistance, but is known especially for its outstanding toughness. This steel performs well over a wide range
of hardnesses, showing great toughness when hardened in the low 50s Rc for swords, and hardened up near the 60s for knives needing more edge holding.
Alternate designations: 5160(AISI), 60Cr3(DIN), 1.7177(W-Nr), 60Cr3(EN), SUP9A(JIS), 60CrMnA(GB), G51600(UNS).