S355JR Steel

high intensity jisg 4104 scr420 scr440 alloy steel roll

high intensity jisg 4104 scr420 scr440 alloy steel roll

high intensity jisg 4104 scr420 scr440 alloy steel roll

JP2005240175A - Case hardening steel having excellent

PROBLEM TO BE SOLVED:To stably suppress the generation of coarse grains in a carburizing and quenching process, to prevent the occurrence of distortion and bending after carburizing and quenching, and to prevent the generation of coarse grains in high-temperature carburizing, A case-hardened steel capable of obtaining sufficient strength characteristics such as rolling fatigue and a method

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