s7工具钢圆棒佳成金属批发s7光圆棒 S7模具钢为铬钼合金组成，专为需要有高耐冲击和韧性之特殊性质组合之钢材。
S7模具钢化学成份
portant; margin-bottom: 0px !important; padding: 0px !important;">C: 0.45 ~ 0.55
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portant; margin-bottom: 0px !important; padding: 0px !important;"> 硅Si: 0.20-1.00
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portant; margin-bottom: 0px !important; padding: 0px !important;"> 锰Mn: 0.20-0.90
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portant; margin-bottom: 0px !important; padding: 0px !important;"> 硫含量:≤ 0.030
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portant; margin-bottom: 0px !important; padding: 0px !important;"> 磷P: ≤ 0.030
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portant; margin-bottom: 0px !important; padding: 0px !important;"> 铬Cr: 3.00 ~ 3.50
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portant; margin-bottom: 0px !important; padding: 0px !important;"> 镍Ni: ≤ 0.25
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portant; margin-bottom: 0px !important; padding: 0px !important;"> 铜Cu: ≤ 0.30
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portant; margin-bottom: 0px !important; padding: 0px !important;"> 钼Mo :1.30~1.80
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S7模具钢特性应用
1、高冲击韧性,耐磨耗性好
2、於高强下仍保有优韧性
3、具可高硬化性及抗软化性
4、优异的抗机械疲劳性能
S7模具钢出厂状态
退火至约≤HB21
淬火：HRC55-58
S7模具钢用
适宜制作耐冲击及抗软化之工具如: 工具业—冲头,锻造模,铁鎚,凿刀,夹具模,裁剪刀具
适用於热作和冷作之冲击工具、塑胶模具。
S7模具钢主要使用在冲栽模具、精密冲压模、冷作成型模具、冷拉模具、成型轧辊、冲头、拉伸模，卷边模、压花模、线切割加工的精密冲裁及各种用途冲压模、难加工材料的塑性变形用具、冷锻模具、深拉模具和搓丝模等上面。
应用在冲压模具、切边模具、剪切模具、装饰模具、气动工具、手工具、刀具、鉴刀、装修工具、冷钻、剪刀、冲压模具和其它五金模具及塑料模具等上面。正确热处理可达到HRC55-57的超高强度。