内容标题21

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                4Cr13

                中文名:4Cr13         标    准:GB/T 1220-1992

                数字代号:1.4031    对应日本牌号:SUS420

                 

                定义:4Cr13,是高硬度及高耐磨性的一种不锈钢材料。


                化学成份

                碳 C:0.36~0.45

                硅 Si:≤0.60

                锰 Mn:≤0.80

                硫 S:≤0.030

                磷 P:≤0.035

                铬 Cr:12.00~14.00

                镍 Ni:允许含有≤0.60

                力学性能

                硬度 :退火,,≤201HB,压痕直径3.9~4.3mm;淬火,≥50HRC

                ●热处理@ 规范及金相组织:

                热处理规范:1)退火,800~900℃缓冷或约750℃快冷;2)淬火,1050~1100℃油冷

                ;3)回火,200~300℃快冷。

                金相组织:组织特征为马氏体型。


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