42CrMo无缝钢管的用途:桥梁用特种钢为“42Cr钼”,汽车大梁用特种钢是“42CrMo”,压力容器用特种钢则为“42铬钼”。这种钢通过调整碳(c)含量来提高钢的机械性能。因此,根据碳含量,这种钢可分为:低碳钢——碳含量一般小于0.25%,如10钢和20钢;中碳钢——碳含量一般在0.25~0.60%之间,如35~45钢;高碳钢——碳含量一般大于0.60%。这种钢材通常不用于制造钢管。
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