轴常用材料的选用

1、轴常用材料轴常用材料，希望可以有用轴常用材料的选用材料牌号热处理毛坯直径(mm)硬度抗拉强度(T b屈服强度bS弯曲疲劳极限(T -1 4扭转疲劳极限T-1 许用弯曲应力备注+ 10-1Q235,Q235F-4402401801051257040用于不重要或载荷不大的轴20正火2530050050070010315640038036022020019018016515515014595 908580125704035正火2510030030050075010001491871431871371875205004804604402702602402302202101901851751201151

2、101051001657545强度要求和 加工塑性要 求的轴。调质100100300156207560540300280230220130125175855045正火25100300300500500750170217162217156217600580560540300290280270240225 2151401351301251959555调质100300300500500800286229269217255冲击的重要轴。35SiMn 42SiMn调质2590075044525524512070性能接近40Cr, MT中小型轴。100300400400500229286217269217

3、2551962558007006505204003803553202952752051851701602451207040MnB调质25100080048528024512070性能同40Cr,1003003005005008002072697507006505004504003503202952702001851701552451207040CrNi, MT重载荷的轴。38SiMnMo调质10010030030050050080022928621726919624118724175070065060060055050036033531027021019517515527512070性能接近于

4、35CrMo。37SiMn2MoV调质25100085049528527512070用于高强度、 大尺寸和重 载荷的轴。200200400400600269302 241 286 241 2698808307807006506004253952452302152751207038CrMoAlA调质30229100085049528527512575用于要求耐磨、高强且热处理变形很小的（氮化）轴20Cr渗碳淬火回火15 60表卸5662 HRC850650550400375 28021516021510060用要求屈度、韧性均较 高的轴（如齿 轮轴、蜗杆）20CrMnTi渗碳淬火回火15表卸5662 HRC11008505253003651651001Cr13调质6018721760042027515527513075用于腐蚀条 件下工作的 轴。2Cr13调质 100197248660450295170275130751Cr18Ni9Ti淬火60 180100200 1925505405002202002002051951851201151051657545用于在高、低 温及强腐蚀 条件下工作 的轴。QT400-15-156197400300145125100用于结构、形QT450-10-17020745