钢号试样毛热处理温度/c力学性匕匕 厶冃交货状态硬度HBS（不大于）坯 尺寸正淬回抗拉屈服延伸率断面收 缩率AKUJ/mm火火火（不小于）未热处 理钢退火钢08F25930-2951753560-131-10F25930-3151853355-137-15F25920-3552052955-143-0825930-3251953360-131-1025930-3352053155-137-1525920-3752252755-143-2025910-4102452555-156-2525900870600450275235071170-30258808606004902952150631793525870850600530315204555197-40258608406005703351945472171874525850840600600355164039229197502583083060063037514403124120755258208206006453801335-2552176025810-6754001235-2552296525810-6954101030-2552297025790-715420930-26922975试样-8204801080880730-28524180试样-8204801080930630-28524185试样-8204801130980630-30225515Mn25920-4102452655-163-20Mn25910-4502752450-197-25Mn25900870600490295225070207-30Mn2588086060054031520456321718735Mn2587085060056033518455522919740Mn2586084060059035517454722920745Mn2585084060062037515403924121750Mn2583083060064539013403125521760Mn25810-6954101135-26922965Mn25830-735430930-28522970Mn25790-785450830-285229