博翰供应进口国产弹簧钢标准:65mn，60mn，60si2mn，55si2mn，sk4，sk5，sk8，sk85，sk80，sk95，sk90，1095,1074，c85s，T9A,T8A,1.07611.12311.07611.09041.07731.09061.50281.09611.71301.71761.8159C67ECK67C75EC101E38Si646Si765Si760SiMn51MnV754SiCr655Cr351CrV458CrV451CrMoV445CrMoV6-752MnCrB3……SUP3SUP6SUP7SUP9SUP9ASUP10SUP11ASUP12SK7SK5C75C80C90……1064106510701074108415669255926092546150……65mnT8T8AT10中国弹簧钢：657065MN70MN55SI2MN55SI2MNB55SI2MNVB60SI2MN60SI2MNA60SI2CRA60SI2CRVA55CRVA60CRMNBA55CRMNA60CRMNA60CRMNMOA30W4CR2VA70SI2CRA55CRSIA美国弹簧钢：1065107010841566157292559260515551604151615051B60H德国弹簧钢：C67ECK67C75ECK75C85ECK85C101ECK10138SI638SI746SI751SI755SI756SI765SI771SI760SIMN551MNV754SICR660SICR767SICR755CR351CRV450CRV458CRV451CRMO445CRMOV6-752MNCRB3日本弹簧钢：SUP3SUP6SUP7SUP9SUP9ASUP10SUP11ASUKP12SUP13S50C-CSPS55C-CSPS60C-CSPS65C-CSPS70C-CSPSK5-CSPSUP10-CSP英国弹簧钢：251A58251A60251H60525A58525A60525A61685A57685H57704A60704H60705A60705H60735A51735H51735A54805H60925A60060A96070A72070A78080A52080A67060A96070A72090A65685A55735A50SK5特性及适用范围：淬火回火后有较高硬度和耐磨性，但热硬性低、淬透性差、易变形、塑性及强度较低。用作需要具有较高硬度和耐磨性的各种工具，如形状简单的模子和冲头、切削金属的刀具、打眼工具、木工用的铣刀、埋头钻、斧、凿、纵向手用锯、以及钳工装配工具、铆钉冲模等次要工具。化学成份：碳C：0.75～0.84硅Si：≤0.35锰Mn：≤0.40硫S：≤0.020磷P：≤0.030铬Cr：允许残余含量≤0.25、≤0.10(制造铅浴淬火钢丝时)镍Ni：允许残余含量≤0.20、≤0.12(制造铅浴淬火钢丝时)铜Cu：允许残余含量≤0.30、≤0.20(制造铅浴淬火钢丝时)注：允许残余含量Cr+Ni+Cu≤0.40(制造铅浴淬火钢丝时)力学性能：硬度：退火,≤187HB,压痕直径≥4.40mm;淬火,≥62HRC热处理规范及金相***：热处理规范：试样淬火780～820℃,水冷。交货状态：钢材以退火状态交货。经双方协议，也可以不退火状态交货。)