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Gost 9kh5vf Tool Steel Deep Hardening PropertiesMinerals and ores and metals - Dongguan Songshun Mould Steel Co., Ltd. - China - March 2, 2026 - 117.00 Dollar US$GOST 9KH5VF tool steel is a medium-alloy cold work tool steel with medium hardenability. Oil quenching achieves full-section hardening of 30–50 mm, while water quenching reaches 50–80 mm. The hardened hardness stabilizes at 60–64 HRC. Deep Hardening ...