弹簧钢弹簧钢是用以制造弹簧或其他弹性元件的钢种。分为优质碳素弹簧钢、合金弹簧钢二类。具体牌号有：65、70、85、65Mn、55Si2Mn、55Si2MnB、55SiMnVB、60Si2Mn、60Si2MnA、60Su2CrA、60Si2CrVA、55CrMnA、60CrMnA、60CrMnMoA、50CrVA、60CrMnBA、30W4Cr2VA共17个牌号。美国、日本、德国弹簧钢牌号对照表牌号相似牌号化学成份热轧交货硬度HB≯美国日本德国CSiMnCrVBPS≯65Mn10660.62-0.700.17-0.370.90-1.20≤0.250.0350.03530255Si2Mn925555Si70.52-0.601.50-2.000.60-0.90≤0.350.0350.03530260Si2Mn9260SUP660Si70.56-0.641.50-2.000.60-0.90≤0.350.0350.03532160Si2MnA9260SUP660Si70.56-0.641.60-2.000.60-0.90≤0.350.030.0332155CrMnA5155SSUP955Cr30.52-0.600.17-0.370.65-0.950.65-0.950.030.0332160CrMnA5160SUP9A0.56-0.640.17-0.370.70-1.000.70-1.000.030.0332150CrVA6150SUS10A51CrV4