21-4NWNb材料咨询21-4NWNb内燃机气阀钢21-4NWNb棒材21-4NWNb盘条21-4NWNb冷拉棒21-4NWNb银亮材21-4NWNb热轧棒
21-4NWNb耐热不锈钢化学成分:
碳C:0.45~0.55
硅Si:≤0.45
锰Mn:8.00~10.00
磷P:≤0.05
硫S:≤0.03
铬Cr:20.00~22.00
镍Ni:3.50~5.00
钨W:0.80~1.50
铌Nb:1.80~2.50
铜Cu:≤0.30
氮N:0.40~0.60
21-4NWNb材料咨询21-4NWNb内燃机气阀钢21-4NWNb棒材21-4NWNb盘条21-4NWNb冷拉棒21-4NWNb银亮材21-4NWNb热轧棒
21-4NWNb耐热不锈钢化学成分:
碳C:0.45~0.55
硅Si:≤0.45
锰Mn:8.00~10.00
磷P:≤0.05
硫S:≤0.03
铬Cr:20.00~22.00
镍Ni:3.50~5.00
钨W:0.80~1.50
铌Nb:1.80~2.50
铜Cu:≤0.30
氮N:0.40~0.60
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