白钢由什么材料组成?

白钢就是合金工具钢合金工具钢是在碳素工具钢的基础上加入合金元素CrWMoCSiMnNiCo等提高其强度硬度
耐磨性和耐热性以适应不同用途的需要合金工具钢按用途可分为量具刃具用钢耐冲击工具用钢冷作模具用钢和热作模具用钢合金钢中的碳和合金元素的含量为适应不同的用途需要变化很大合金工具钢GB 1299-85二化学成分熔炼分析化学成分%P(磷) S(硫)序号钢组牌号 C(碳)Si(硅)Mn(锰)Cr(铬)W(钨)Mo(钼)V(钒)Al(铝)其他4-1 5CrMnMo0.25-0.601.20-1.600.60-0.904-2 5CrNiMo0.50-0.60 0.50-0.800.50-0.800.15-0.304-3热轧模具钢3Cr2W8V0.30-0.400.400.40 0.030 0.0302.20-2.707.50-9.000.20-0.60Ni1.40-1.804-45Cr4Mo3SiMnVA10.47-0.570.80-1.100.80-1.103.80-4.302.80-3.400.30-0.704-5 3Cr3Mo2W2V0.32-0.420.60-0.900.652.80-3.301.20-1.802.50-3.000.80-1.204-6 5Cr4W5Mo2V0.40-0.503.40-4.404.50-5.302.50-3.000.70-1.104-7 8Cr30.75-0.850.400.403.20-3.801.50-2.104-8 4CrMnSiMoV0.35-0.450.80-1.100.80-1.101.30-1.500.20--.404-9 4Cr3Mo3SiV0.35-0.450.25-0.703.00-3.750.40-0.600.25-0.754-10 4Cr5MoSiV0.33-0.432.00-3.000.30-0.64-11 4Cr5MoSiV10.32-0.450.25-0.504.75-5.50 1.10-1.600.30-1.204-12热作模具钢4Cr5W2Vsi0.32-0.420.80-1.200.400.030 0.0304.50-5.501.60-2.401.10-1.750.60-1.105-1无磁模具钢7Mn15Cr2Al3V3V2Wmo0.65-0.75 0.8014.50-16.500.030 0.0302.00-2.500.50-0.800.50-0.801.50-2.002.30-3.306-1塑料模具钢3Cr2Mo0.28-0.400.20-0.800.60-1.000.030 0.0301.40-2.00-0.30-0.55注钢中残余铜含量应不大于0.035%镍铬不作为合金化学元素时残余含量应均不大于0.25%5CrNiMo钢经供需双方同意允许钒含量小于0.20%钢材和钢坯的化学成分允许偏差应符合GB 222-84钢的化学分析用试样取样法及成品化学成分允许偏差的规定