1、常用鋼材化學成分及力學性能01.碳素鋼板(一)Q235-A.F鋼表1-10鋼的化學成分化學成分%CSiMnPS0.140.220.070.300.600.04523520d=1.5a33.5213.542241637550023525d=1.5a表1-12鋼板的許用應力板厚（mm）在卜列溫度（）下的許用應力（Mpa）2010015020025034113113113105944.51611311311310594（二）Q235-A鋼板表1-13鋼的化學成分化學成分（）CSiMnPS0.140.220.120.300.300.650.04523520d=1.5a33.5213.542241637

2、55023525d=1.5a16403755022524d=1.5a表1-15鋼板的許用應力板厚（mm）在卜列溫度（）下的許用應力（Mpa）1640113113113107919183(三)Q235-B鋼板表1-16鋼的化學成分化學成分%CSiMnPS0.220.120.300.700.04523520d=1.5a33.5213.5422416375502352527d=1.5a1640375502252427d=1.5a表1-18鋼板的許用應力板厚（mm）在卜列溫度（C）下的許用應力（Mpa）164011311310799918375(四)Q235-C鋼板表1-19鋼的化學成分化學成分%CS

3、iMnPS0.180.120.300.350.800.04023520d=1.5a33.5213.5422416375502352527d=1.5a1640375502252427d=1.5a表1-21鋼板的許用應力板厚（mm）在卜列溫度（C）下的許用應力（Mpa）1640125125119110101928377（五）20HP鋼板表1-22鋼的化學成分化學成分%CSiMnPS0.220.350.350.650.0353902452527d=1.5a(六)15MnHPffl板表1-24鋼的化學成分化學成分%CSiMnPS0.120.200.350.651.000.0354402952627d=

4、2a（七）20R鋼板表1-26鋼的化學成分化學成分%CSiMnPS=0.200.150.300.400.900.0352452531d=2a163623536602256010039051020524表1-28鋼板的高溫屈服強度板厚（mm）在卜列溫度（）下的屈服強度（Mpa）不小于2002503003504004502136186167153139129121366017816114713312311660100164147135123113106表1-29鋼板的許用應力在卜列溫度（C）卜的許用應力（Mpa)板厚（mm）1636133132126116104958679786141366013

5、3126119110101928377756141601001281151101039284777168614102.低合金高強度鋼板（一）16MnFffi板表29鋼的化學成分化學成分%CSiMnPS0.200.200.551.201.600.0353452131d=2a163649062032521d=3a366047060030521601004605902852010012045058027520表211鋼板的高溫屈服強度板厚（mm）在卜列溫度（C）卜的屈服強度（Mpa）不小于2002503003504004502136255235215200190180366024022020018517516560100225205185175165155100120220200180170160150表212鋼板的許用應力板厚（mm）在卜列溫度（）下的許用應力（Mpa）163616316316315914713412511993664336601571571571501381251161099366436010015315315014112811610910393664310012015015014713812511310610