40crni2mo优质结构钢

 40CrNi2Mo圆钢，40CrNi2Mo合结钢，合金结构钢简称合结钢，40CrNi2Mo是合结钢的其中一种，也称合金钢，它是在优质碳素结构钢的基础上，适当地加入一种或数种合金元素（总含量不超过5%）而制成的钢种。轴承零件经热处理后常见的质量缺陷有：淬火显微卒子过热、欠热、淬火裂纹、硬度不够、热处理变形、表面脱碳、软点等。  

硅 Si：0.15～0.35

硫 S ：允许残余含量≤0.030

铬 Cr：0.60～0.90

镍 Ni：1.25～1.65

铜 Cu：允许残余含量≤0.025

40crni2mo合金钢规格：圆棒规格直径6mm-350mm，板材规格厚0.1mm-300mm均有现货
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