Henan Friend Metal Products Co., Ltd. is one of the leading manufacturers and suppliers of 55crsi(sae 9254) oil tempered and quenched spring steel wire in China. If you're going to buy 55crsi(sae 9254) oil tempered and quenched spring steel wire made in China, welcome to get more information from our factory. We also accept customized orders.
0 si2mn, quenching temperature of 840 ° C to 870 ° C, after quenching hardness HRC > 60.
Tempering temperature of 150 ° C, HRC61 hardness;
Tempering temperature of 200 ° C, HRC60 hardness;
Tempering temperature of 300 ° C, hardness HRC56;
Tempering temperature of 400 ° C, HRC51 hardness;
Tempering temperature of 500 ° C, HRC43 hardness;
Tempering temperature of 550 ° C, HRC38 hardness;
Tempering temperature of 600 ° C, HRC33 hardness;
Tempering temperature of 650 ° C, hardness HRC29.
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