钢铁材料的许用应力

Van Wen示例参考表1普通碳钢和高质量碳钢零件基本许用应力/MPa材料类型材料标示剖面标注/公厘热处理材料性质拉力压力乐曲扭转剪刀抗拉强度b屈服强度s/MPaIIII西格玛l西格玛l西格玛l西格玛西格玛西格玛nnn普通碳钢Q215100列睡吧b335-410s185-215145125901751401059590601009060Q235b375-460s205-235160140100190160120105956511010070Q275b490-610s235-2751751501102101701301151057012011080优秀质量碳钢铁20100郑火西格玛b410西格玛s245175145105210165125115105701201057525西格玛b450西格玛s275195160115230175135125115751351208035b530西格玛s3152101801252502001501351208014512085调理b550-750s320-370210185130250205155135125851451208545正火西格玛b600s3552302001452702201701501359016014095调理b630-800s370-4302502151503002351801601501001751501005025正火b630西格玛s375250215150300235180160150100175150100100调理 b 700 s 400265235165310260195170155105180160110表2碳钢铸件的基本许用应力/MPa材料标示剖面标注/公厘热处理材料性质拉力压力乐曲扭转剪刀抗拉强度b屈服强度s/MPaIIII西格玛l西格玛l西格玛l西格玛西格玛西格玛nnnZG 200-400100郑火和后退火西格玛b400西格玛s20013512090160135105908060958560ZG 230-450西格玛b450西格玛s23015514010018515512010085651109065ZG 270-500西格玛b500西格玛s2701751601152101751351151007512010575ZG 310-570西格玛b570西格玛s3101901701252301901451251058013011080ZG 340-640西格玛b640s3402001801302402051551301158714012087表3灰铸铁基本许用应力/MPa材料标示壁厚/mm压缩强度/MPa抗拉强度/MPa中心电阻乐曲拧剪刀压迫拉拉力压力IIII西格玛l西格玛l西格玛l西格玛l西格玛lHT-150 2.5-10500-70017514080502820503023452418 10-2014514080412417412519372015 20-3013014080372115372217331813 30-5012014080341914342115311712HT-200 2.5-10600-800220170100633625633828573123 10-20195170100563222563325502720 20-30170170100492819492922442417 30-50160170100462618462721412216HT-250 4.0至10800-1000270230130774431774635693728 10-20240230130693927694131623325 20-30220230130633625633828573123 30-50200230130573223573426512821HT-300 10-201000-1200290285160834733835037754030 20-30250285160714129714332643526 30-50230285160663726663930593224HT-350 10-201100-1300340315180975539975844874735 20-30290315180834733835037754030 30-50260315180744230744433673627恒钢的许用应力(kgf/cm2)下属号低碳钢重庆铸造钢铁铁伸展运动I900-1500600-1000300-5001200-1800800-1200400-600600-1200400-600200-400300200100按收缩I900-1500600-10001200-1800800-1200900-1500600-1000900600乐曲I900-1500600-1000300-5001200-1800800-1200400-600750-1200500-800250-400剪刀I720-1200480-800240-400960-1440640-960320-480480-960320-640160-320300200100扭转I600-1200400-800200-400900-1440640-960320-480480-960320-640160-320(请参阅)负载表示I:静态负载:重复负载:交变载荷表4许用弯曲应力材料极限强度Kgf/cm2许用应力 kgf/cm2稳定载荷冲击或脉动载荷重复交替负载卡本河400050006000700013001700200023007007509501100400450550650金刚8000100002700330013001600750900铸造钢铁4000500010001200500700300400整理WORD格式表格5轴线中的一般材料和允许的弯曲应力30铁湖多莉毛坯直径(mm)机械能刚度HB允许的弯曲应力wKgf/cm2西格玛bKgf/mm2西格玛Kgf/mm2-1Kgf/mm235正火正火正火标准化回火调整质量25100 100-300 300-500 500-750100 100-3005452504846565432272624233028262524232226.525.5187143-187143-187137-187131-187163-201144-2011100105010009609201100108045正火正火正火标准化回火调整质量25100 100-300 300-500 500-7002006160585654653630292827362827.527262530241170-207163-207156-207149-207187-22911501150113010801050125035 Simon42 Simon调整质量25100 100-300 300-400 400-5009080757065755245403846403532.531.5229-286217-269217-255197-2551600140014001350130040MB调整质量252001007580505036240-2901750145038 Simon调整质量100 100-300 300-500 500-800757270606055504038363530228-286217-269197-241186-241150014501400125040Cr调整质量25100 100-300 300-500 500-8001007570656080525040355037353129241-286241-286229-260217-26017501500148013001200注：表-1适用于4至 8，收尾增加或减少时-1必须相应地增加或减少5至15