高强韧性高淬透性弹簧钢38SiMnVBE的特性和应用  

Characteristics and Application of High Strength-Toughness and High Hardenability Spring Steel 38SiMnVBE

作　　者：韩晖[1] 高文生[1] 李德胜 肖爱平 

机构地区：[1]河南省生产力促进中心,郑州450008 [2]大冶特殊钢股份有限公司,黄石435001

出　　处：《特殊钢》2005年第3期54-56,共3页Special Steel

摘　　要：38SiMnVBE弹簧钢的主要成分( % )为:0 . 3 7～0 . 42C ,0. 80～1 .2 0Si,1 . 2 0～1 . 60Mn ,0 .0 8～0 .1 4V ,0 .0 0 0 5～0 .0 0 3 5B ,该钢要求P≤0 . 0 2 5% ,S≤0 .0 1 5% ,[O]≤1 5×1 0 - 6 。3 8SiMnVBE钢的抗拉强度为1 90 5～2 0 2 0MPa ,0 .2 %屈服强度1 71 5～1 850MPa ,延伸率9 0 %～1 1 . 5% ,断面收缩率44 %～54 % ,高于现有国际和国家标准中DAC类钢和60Si2CrVA的性能。该钢具有优良的淬透性。已在高应力、高性能汽车板簧,变截面板簧、轿车前、后悬架簧上进行试验和应用。The main chemical compositions of spring steel 38SiMnVBE are 0.37～0.42C, 0.80～1.20Si, 1.20～1.60Mn, 0.08～0.14V, 0.000 5 ～ 0.003 5 B, and the steel requires P≤0.025%, S≤0.015% and ≤15×10 -6 . The strength of steel 38SiMnVBE is 1 905 ～ 2 020 MPa, 0.2% yield strength 1 715 ～ 1 850 MPa, elongation 9.0%～11.5%, reduction of area 44%～54%, which are higher than that of DAC series spring steel and steel 60Si2CrV in present ISO and state standard. The steel 38SiMnVBE has excellent hardenability. The test and application of the steel used for high stress and properties auto leaf spring, variable section leaf spring, suspend self spring have been carried out.

关 键 词：高强韧性 高淬透性 弹簧钢 38SiMn VBE 应用 

分 类 号：TG113[金属学及工艺—物理冶金]