优质非合金结构钢的力学性能（摘自GB/T699-1999）牌号08F10F15F0810152025303045505560657075808515Mn20Mn25Mn30Mn35Mn40Mn45Mn50Mn60Mn65Mn70Mn试样推荐热处理/℃ 毛坯尺寸 正火 淬火 回火/mm2593025930259202593025930259202591025900870600258808606002587085060025860840600258508406002583083060025820820600258102581025790试样820480试样820480试样8204802592025910259008706002588086060025870850600258608406002584084060025830830600258102583025790σbMPa2953153553253353710450490530570600630567569571510801080113041045049005605906205695735785力学性能钢材交货状态硬度HBSσsδ5ψAKU2（10/3000）≤MPa%%J未处理钢退火钢≥17535601311853355137205295514319533601312053155137225275514324525551562752350711702952150631793152045551973351947217187355103922919737514403124120738013352552174001235255229410103025522942093026922988073028524193063028524198063030225524526551632752450197295225071207315204563217187335184555229197355174722920737510392412173901340312552174101135269229430930285229450830285229
