《钢铁材料许用应力》由会员分享，可在线阅读，更多相关《钢铁材料许用应力（8页珍藏版）》请在金锄头文库上搜索。
1、资 料 类 型资料 标号截面尺寸/mm热处 理资料性能拉压弯曲扭转剪切抗拉强度Ob屈服强度OS/MPaIIIIIIIIIIIIIIIIIIIIIIIIOlOlOlOOOTnTnTnTTT普通 碳 钢Q215100热 扎o 335-410 bos185 215145125901751401059590601009060Q235o 375 460 bos205 235160140100190160120105956511010070Q275o 490 610 bos2352751751501102101701301151057012011080优质碳钢20W100正 火o410 bos245175
2、145105210165125115105701201057525O450 bos275195160115230175135125115751351208035O530 bos3152101801252502001501351208014512085调质o 550 750 bos320370210185130250205155135125851451208545正火o 600 bos3552302001452702201701501359016014095调质o 630 800 bos370 43025021515030023518016015010017515010050W25正火o630
3、bos375250215150300235180160150100175150100W100调质o 700bos 400265235165310260195170155105180160110表1普通碳钢及优质碳钢构件基本许用应力/MPa之马矢奏春创作表2碳钢铸件基本许用应力/MPa资料标号截面尺寸/mm热处 理资料性能拉压弯曲扭转剪切抗拉强度Ob屈服强度OS/MPaIIIIIIIIIIIIIIIIIIIIIIIIOlOlOlOOOTnTnTnTTTZG200400100正 火 及 回 火o 400bos20013512090160135105908060958560ZG230450o450b
4、os23015514010018515512010085651109065ZG270500o500bos2701751601152101751351151007512010575ZG310 570o570bos3101901701252301901451251058013011080ZG340 640o 640bos3402001801302402051551301158714012087表3灰铸铁基本许用应力/MPa资料标号壁厚/mm抗压强度 /MPa抗拉强度/MPa中心抗压弯曲扭剪压拉拉压IIIIIIIIIIIIIIIIIIIIIOlOlOlOlOlTTTTTTHT-15010500700
5、17514080502820503023452418102014514080412417412519372015203013014080372115372217331813305012014080341914342115311712HT-2001060080022017010063362563382857312310201951701005632225633255027202030170170100492819492922442417 30 50160170100462618462721412216HT-250108001000270230130774431774635693728102024
6、02301306939276941316233252030220230130633625633828573123 30 50200230130573223573426512821HT-3001020100012002902851608347338350377540302030250285160714129714332643526 30 50230285160663726663930593224HT-3501020110013003403151809755399758448747352030290315180834733835037754030 30 5026031518074423074443
7、3673627附表钢铁的许用应力（kgf/cm2）载荷软钢中硬钢铸钢钢铁I9001500120018006001200300拉伸II6001000800 1200400 600200III300 500400 600200400100压缩I900 1500120018009001500900压缩II600 1000800 12006001000600I9001500120018007501200弯曲II6001000800 1200500 800III300 500400 600250 400I72012009601440480 960300剪切II480 800640 96032064020
8、0III240 400320 480160320100I60012009001440480 960扭转II400 800640 960320640III200 400320 480160320（注）载荷指I:静载荷II:重复载荷III:交变载荷表4 许用弯曲应力。3材料极限强度O许用应力o kgf/cm2kgf/cm2稳定载荷冲击或脉动载荷反复父变载荷40001300700400碳素钢50001700750450碳素钢60002000950550700023001100650合仝钢800027001300750口 仝钢1000033001600900铸钢40001000500300铸钢5000
9、120070040035处理正火正火正火正火+回火调质45正火正火正火正火+回火调质表 5 轴的经常使用资料及许用弯曲应力30毛坯直径(mm)25W100100 300 300 500 500 750W10010030025W100100300 300 500 500 700W200OOSbkgf/mm kgf/mm5432522750264824462356305428613660305829562854276536o-1kgf/mm26252423222827262530硬度HB许用弯曲应力oWkgf/cm2W18711001431871050143187100013718796013118792016320111001442011080W24111501702071150163207113015620710801492071050187229125035SiMn42SiMn40MB 调质38SiMo 调质A ACr1151F-25W100100300 300 400 400 50025W200W100100300 300 500 500 80025W100、see Qnn908075706510075757270601007575524540388050605550
