Q345A钢板のQ345A低合金板0=0Q345A钢板の广东Q345A低合金钢板；豪景：·《低合金高强度结构钢》注：Q345***新标准GB/T1591-2008相对于老标准，***明显的一个变化就是Mn元素含量的变化，从原来的1.0-1.60更正为≤1.70，取消了***小值的限定。随着现代工业的发现，科技的不断进步，各种微量元素在钢板中的应用也更加广泛，Mn含量不再是影响钢材强度和机械性能的***因素。所以中华人民共和国***质量监督检验检疫总局和中国***标准化管理***会联合发布实施的低合金高强度结构钢标准，取消Mn含量区间的限定，只规定***大值。对于Q345钢材的检测，一方面是钢材的元素含量是否达到国标要求，***重要的一方面是通过***机构检测钢材的机械性能（屈服强度、拉伸试验）是否达到标准。其）供应的***为***Q345A8*1500-2550*9200-12500186.188TQ345A9*1850-2600*9200-12450136.537TQ345A10*2650-3000*8000-10000221.381TQ345A12*1800-2550*9000-11000M235.377TQ345A14*1850-2500*7600-10000M165.027TQ345A15*2000-3000*6800-14000M238.839TQ345A16*2050-3000*8000-12100199.406TQ345A17*2200-2900*7600-11350M116.154TQ345A18*1700-2200*9300-15900M168.481TQ345A20*2200-3400*8800-10500164.316TQ345A22*2600-3100*8150-10100M187.631TQ345A24*1900-2360*8770-13700M148.956TQ345A25*2000-2950*8000-11000M175.095TQ345A26*2000-2950*9700-13000144.577TQ345A28*1800-2450*7800-1000089.771TQ345A30*1820-2450*9450-10800M145.525TQ345A32*1800-3200*8000-11200M180.433TQ345A34*1950-2850*8600-10200M125.526TQ345A35*1800-2700*7800-11800152.484TQ345A36*1950-2400*7800-11000132.29TQ345A38*2420-3200*9200-14000M120.093TQ345A40*1900-2800*8150-12000M164.953TQ345A44*1800-2400*8500-12000252.222TQ345A45*1800-2470*8350-10200174.363TQ345A46*1800-2340*8000-10900M225.464TQ345A48*1950-2850*9500-14000M156.281TQ345A50*1900-2800*9300-12500164.282TQ345A52*2100-2600*8800-12000113.544TQ345A55*1820-2300*8000-11800M318.904TQ345A56*2510-3200*9500-15400M132.992TQ345A59*2400-3100*8200-11400218.115TQ345A60*2220-2950*8500-12000220.604TQ345A64*2250-2850*8600-13150M368.781TQ345A65*1800-2500*8400-12000M288.327TQ345A70*2200-2900*9300-13000175.707TQ345A72*2250-2950*6000-9500130.14TQ345A74*2240-2980*8200-12000M227.67TQ345A75*1700-2800*7590-11500M181.904TQ345A76*2600-3100*3800-5600178.348TQ345A78*2320-2850*4500-9500129.489TQ345A80*2300-2900*9300-12000M215.319TQ345A82*2340-3100*5600-9500M226.585TQ345A85*2200-2500*9300-10350196.931TQ345A88*2130-2850*7400-10000208.962TQ345A90*2300-3600*9400-11000M250.461TQ345A92*2100-2900*6800-9800M326.431TQ345A95*2150-2680*9300-10850136.106TQ345A96*2150-2650*8050-11500126.043TQ345A98*1710-2470*9200-12400M281.438TQ345A100*1800-2500*8700-10500220.305TQ345A102*1900-2500*7950-10500330.139TQ345A105*2200-2950*6900-12300268.934TQ345A106*2600-3200*8750-11200M363.93TQ345A110*1700-2400*8000-11800220.523TQ345A112*1750-2400*6250-9600161.157TQ345A115*2200-2900*8500-11000M561.688TQ345A116*2400-3000*7200-10000M313.735TQ345A120*2000-2900*7000-10000320.042TQ345A125*1760-2560*8400-1040081.306TQ345A126*1760-2360*7800-12000M302.561TQ345A130*2600-3350*8500-10560M160.102TQ345A132*2030*2650*8500-12300360.88TQ345A135*2200-2900*9600-11500150.374TQ345A140*1700-2400*8100-12100M192.386TQ345A150*2100-2600*7200-11250M320.507TQ345A160*1960-2460*7600-12250320.062TQ345A180*1800-2300*7350-11250152.358TQ345A190*2210-2610*8400-12000M198.966TQ345A195*2200-2800*6600-9600M46.226TQ345A200*1720-3060*7000-1200069.408TQ345A202*2200-2900*4400-850088.35TQ345A210*1500-2200*5900-9500M68.589TQ345A215*1500-2500*8500-12000M96.563TQ345A220*2170-2670*6000-900058.866TQ345A230*1800-2300*6700-10000200.911TQ345A232*1800-2600*6200-11400M80.161TQ345A240*2000-2500*5000-10000M64.89TQ345A250*2100-2900*8500-1200086.599TQ345A260*1900-2500*6200-10000110.459TQ345A260*1970-2470*7500-11500M100.459TQ345A270*2000-2600*6000-11500M120.744TQ345A272*2070-2650*5000-950069.994TQ345A280*2390-3100*7500-1200090.836T)