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      3. News and information

        News

        PM-HSS S390 for Involute Gear Hob and Gear Hobber Cutter

        2023-07-08 11:37:36 jiangxingTools 1522

        PM-HSS S390 for Involute Gear Hob and Gear Hobber Cutter

        This grade is PM steels with many positive usage properties, S390 is with good red hardness, compressive strength and wear resistance.

        Chemical composition: C-1.64, Cr-4.8, Mo-2.0, V-4.80, W-10.40, Co-8

        Standards of PM-HSS 

        Hanrdess of S390: HRC 66-68

        The application of PM-HSS S390 is used for involute gear hobs, gear hobber cutter, gear hobbing tools, chain sprockt hob, worm wheel hobs and gear shaper cutters.

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