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、60 Su2CrA、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

　　≯

　　65Mn1066 0.62-0.700.17-0.370.90-1.20≤0.25 0.0350.035302

　　55Si2Mn9255 55Si70.52-0.601.50-2.000.60-0.90≤0.35 0.0350.035302

　　60Si2Mn9260SUP660Si70.56-0.641.50-2.000.60-0.90≤0.35 0.0350.035321

　　60Si2MnA9260SUP660Si70.56-0.641.60-2.000.60-0.90≤0.35 0.030.03321

　　55CrMnA5155SSUP955Cr30.52-0.600.17-0.370.65-0.950.65-0.95 0.030.03321

　　60CrMnA5160SUP9A 0.56-0.640.17-0.370.70-1.000.70-1.00 0.030.03321

　　50CrVA6150SUS10A51CrV40.46-0.540.17-0.370.50-0.800.80-1.100.10-0.20 0.030.03321

　　60CrMnBA51B60SUS1158CrMnB40.56-0.640.17-0.370.70-1.000.70-1.00 0.0005-0.0040.030.03321

　　55SiMnVB51B60SUS1158CrMnB40.52-0.600.70-1.000.70-1.00≤0.350.08-0.160.0005-0.00350.030.03321

　　60SiCrBA 0.56-0.641.40-1.800.40-0.700.90-1.200.10-0.20 0.030.03