苏州倍徕斯金属材料长期大量供应宝钢、东特、首钢、兴澄特钢等40cr盘圆，线材，40cr盘条，规格齐全，价格合理，质量保证，出现任何质量问题均可以退换货！
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Suzhou blessed metal materials a large number of long-term supply of Baosteel, Donte, Shougang, Xingcheng Special Steel 40Cr coiled bar, wire, 40Cr steel wire, complete specifications, reasonable price, quality assurance, any quality problems can return goods!
40Cr是我国GB的标准钢号，40Cr钢是机械制造业使用最广泛的钢之一。调质处理后具有良好的综合力学性能，良好的低温冲击韧性和低的缺口敏感性。钢的淬透性良好，水淬时可淬透到Ф28～60mm,油淬时可淬透到Ф15～40mm。这种钢除调质处理外还适于氰化和高频淬火处理。切削性能较好，当硬度为HB174～229时，相对切削加工性为60%。该钢适于制作中型塑料模具。
40Cr is the standard grade of GB in China, 40Cr steel machinery manufacturing industry is one of the most widely used steel. After quenching and tempering treatment, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of the steel is good, water quenching can be quenched to 28 ~ 60mm, oil quenching can harden to 15 ~ 40mm. This kind of steel is also suitable for the treatment of cyanide and high frequency quenching in addition to quenching and tempering treatment. Cutting performance is good, when the hardness is HB174 ~ 229, the relative cutting process is 60%. The steel is suitable for making medium plastic mould.
