弹簧常用材料

1、弹簧常用材料材料牌号热处理毛坏直径硬度抗拉强度屈服强度弯曲疲劳极限扭转疲劳极限许用弯曲应力备注(mm)(HB)(T bT sT -1 T -1 T +1T 0T -1Q235,Q235F-4402401801051257040用于不重要或载荷不大的轴20正火25 1564202501801001257040正火10030038020015590用于载荷不大，要求韧性较 高的场合。回火300 500370190150855007003601801458035正火25 875403202301301657545用于有一定强度要求和加工 塑性要求的轴。正火100 300500260205115回火3

2、00 500143187480240190110500 7501371874602301851057501000440220175100调质100 30054028022012545正火25 2416103602601501959555应用最广泛。正火100 300162217580290235135回火300 500560280225130500-750156217540270215125调质 2002172556503602701552151006025100080048528024512070100-30022926970050032018524512070用于载何较大，而无很大冲 击的

3、重要轴。300 -500650450295170500 -80021725560035025514535Si Mn259007504452552451207042Si Mn100-30021726975045032018524512070300 -400217255700400295170400 -50019625565038027516040MnB调质25100080048528024512070 20024128675050033519524512070性冃匕冋40Cr，用于重要的轴。40CrNi调质25100080048528028513075用于很重要的轴251000850500285

4、24512070100-30020726970050032018524512070300 -500650450295170500 -800600400270155100-30021726970055033519527512070性能接近于35CrMo。300 -500196241650500310175500 -80018724160040027015537SiM n2MoV调质25100085049528527512070用于高强度、大尺寸和重载 荷的轴。200 400241286830650395230400 60024126978060037021538CrMoAIA调质30229100

5、085049528527512575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15表面85055037521521510060用于要求强度、韧性均较高 的轴（如齿轮轴、蜗杆）回火 6056 62 HRC65040028016020CrM nTi渗碳淬火15表面1100850525300365165100回火56 62 HRC1Cr13调质 6018721760042027515527513075用于腐蚀条件下工作的轴。2Cr13调质 100197248660450295170275130751Cr18Ni9Ti淬火 6060180540200195115100 200500200185105QT400-15-156197400300145125100用于结构、形状复杂的轴QT450-1