钢筋的计算截面面积及公称质量表常用建筑材料的比重、容重

钢筋的计算截面面积及公称质量表（梁用）公称直径不同根数直径的计算截面面积（mm2）公称质量(mm)123456789(kg/m)519.60395979981181371571770.154628.2757851131421701982262540.2226.533.20661001331661992322652990.260850.271011512012523023524024530.3951078.541572363143934715506287070.61712113.1022633945256567979290510170.88814153.903084626167709241078123213851.21016201.10402603804100512061407160818091.58018254.505097631018127215271781203622902.00020314.206289421257157118852199251328272.47022380.1076011401521190122812661304134212.98025490.9098214731963245429453436392744183.85028615.80123218472463307936954310492655424.83032804.20160824133217402148255630643472386.310361018.00203630544072508961077125814391617.990401257.0025133770502762837540879610053113109.870501964.0039285892785698201178413748157121767615.420单位板宽受力钢筋相应直径和间距的面积（单位：mm2）直径间距810121416182090558.51872.661256・641710.422234.022827.433490.66100502.65785.41130.971539.382010.622544.693141.59110456.967141028・161399.441827.842313.352855.99120418.88654.5942.481282.821675.522120.582617.99125402.12628.32904.781231.51608・52035.752513.27130386.66604.15869.981184・141546.631957.452416.61140359.04561807.841099.561436・161817.642243.99150335.1523.6753.981026.251340.411696.462094.4160314.16490.87706.86962.111256.641590.431963・5170295.68462665.28905.521182.721496.881848175287.23448.8646.27879.651148.931454.111795.2180279.25436.33628.32855.211117.011413.721745.33190264.56413.37595.25810.21058.221339.311653.47200251.33392.7565.49769.691005.311272.351570.8常用建筑材料的比重

吨/立方米）及容重（千克/立方米）名称比重容重名称比重容重钢、铸钢7.857850耐火砖2.5-2.71900-2100熟铁7.807800轻质空心砖600-1200生铁7.217208硅酸盐砖1700-1900黄铜8.508500矿渣砖1.6-2.41400-1600锡7.407400水泥砖1600-2400铸镍8.408400水泥花砖1980锌7.057050土坯砖1400-1500铸铝2.562560碎砖3.05-3.151100锑6.676670水泥1200铅11.3511350水泥散装2301450铅丝11.2811277水泥袋装压实2.85-31600紫铜丝8.878874火山灰质水泥2.85-3850-1150木材（水分15%）1.3-1.7400-1000矿渣水泥2.51100-1300樟木620石棉1000梓木574石棉（松）400杉木530石棉屑2.5600软木240石棉板900粘土砖2.6-2.71600-1900玻璃棉150-200矿渣棉250石油0.86860普通玻璃2560汽油709-788石灰2.5800-1000煤油800-840水泥砂浆3.12200机械油0.95以下950石灰砂浆1700桐油0.94-0.95940混合砂浆1.71700水玻璃1.36-1.51360-1500素混凝土2.42400纤维塑料1.41400泡沫混凝土0.3-0.9300-900聚氯乙烯钢筋混凝土2.52500塑料卷材1.35-1.41350-1400沥青混凝土2000聚苯乙烯塑料1.05-1.081050-1080黄土1250过氯乙烯清漆1.251250粘土（湿压实）1800泡沫塑料0.20200矽藻土600沥青漆1.13-1.141130-1140菱苦土3.1-3.4800-900洋干漆1080-1130花岗岩2.5-2.72500-2700稻草1.08-1.13120石灰岩2.4-2.72400-2700石油沥青1000-1100大理石2.6-2.71800-2600煤沥青1340石屑1600白凡石1448锯木屑150-250矿渣1000-1200老糠190炉渣850A、常用计量单位换算表<i>公制重量单位表（1）单位名称旧名称单位名称旧名称毫克公丝厘克公毫分克公厘克公分十克公钱百克公两公斤公斤，千克公担公担吨公吨代号对主单位的比mg0.000001公斤cg0.00001公斤dg0.0001公斤g0.001公斤dag0.01公斤hg0.1公斤kg主单位q100公斤t1000公斤常用英美制重量单位表（2）

1英吨（长吨，ton）=2240磅1美吨（短吨，sh.ton）=2000磅1磅（1b）=16盎司（oz）常用重量单位换算表（3）吨公斤市担市斤英吨美吨磅吨110002020000.984211.10232204.6公斤0.00110.0220.0009840.0011022.2046市担0.055011000.049210.0551110.231市斤0.00050.50.0110.0004920.0005511.1023英吨1.016051016.0520.32092032.0911.12002240美吨0.90719907.1918.14371814.370.892912000磅0.0004540.45360.0090720.90720.0004460.00051压力单位换算表（4）公斤/厘米2大气压水银柱咼度（毫米）水柱高度（米）毫巴磅/寸2英寸水柱公斤/厘米210.9678735.5610.00981.0014.223395.00大气压1.03331760.0010.33331013.2514.696407.5水银柱高度（毫米）0.001360.0013110.01361.33320.01930.535水柱高度（米）0.100.096873.556198.101.422339.40毫巴0.001020.0009870.768630.010210.014510.402磅/寸20.07030.068051.7150.70368.95127.72英寸水柱0.002540.002461.870.02542.490.03611

常用长度单位换算表（5）米厘米毫米市尺英尺英寸米1100100033.2808439.3701厘米0.011100.030.032810.3937毫米0.0010.110.0030.0032810.03937市尺0.3333333.333333.3311.093613.1234英尺0.304830.48304.80.9144112英寸0.02542.5425.40.07620.083331英寸与毫米对照表（6）寸毫米寸毫米寸毫米寸毫米寸毫米寸毫米1/161.5889/1614.2917/1626.9925/1639.6917/853.9825/879.381/83.1755/815.889/828.5813/841.289/457.1513/482.553/164.76311/1617.4619/1630.1627/1642.8619/860.3327/885.731/46.3503/419.055/431.757/444.455/263.57/288.95/167.93813/1620.6421/1633.3429/1646.0421/866.6829/892.083/89.5257/822.2311/834.9315/847.6311/469.8515/495.257/1611.11315/1623.8123/1636.5131/1649.2123/873.0331/898.431/212.700125.43/238.10250.80376.24101.6常用容量单位换算表（7）升（市升）立方英寸英加仑美加仑（液量）美加仑（干量）升（市升）161.02370.22000.26420.2270立方英寸0.016410.00360.00430.0037英加仑4.5460277.27411.20091.0321美加仑（液量）3.78532310.832710.8594美加仑（干量）4.4048268.8030.96891016361二、常用化学元素符号表（8）元素名称符号元素名称符号元素名称符号铬Cr铌Nb铝Pb镍Ni钽Ta铋Bi硅Si氢H锕Ac锰Mn碳C铈Ce铝Al氧O铍Be磷P钠Na铯Se钨W镁Mg锆Zr钼Mo硫S镧La钒V氯Cl钡Ba钛T钾K汞Hg铜Cu锌Zn钙Ca铁Fe银Ag碘I

硼B锡Sn溴Br钻Co锑Sb氟F氮N金Au烯土Re三、常用金属材料容重表（9）名称容重（公斤/米3）名称容重（公斤/米3）铝2670锡7310钢7850汞（水银）13600铸铁7220铅11337青铜8800锌7140黄铜8600锰7200紫铜8920铬7100镍8900银10500四、常用工业材料比重表（10）材料名称比重（吨/米3）材料名称比重（吨/米3）灰口铸铁6.6〜7.4铜材（紫铜材）8.9〜9.0白口铸铁7.4〜7.796黄铜8.85可锻铸铁7.2〜7.490黄铜8.80工业纯铁7.8785黄铜8.75钢材7.8580黄铜8.65铸钢7.868黄铜8.60低碳钢（含碳0.1%）7.8562黄铜8.50中碳钢（含碳0.4%）7.8274-3铅黄铜8.70高碳钢（含碳1%）7.8163-3铅黄铜8.5高速钢（含钨9%）8.359-1铅黄铜8.5高速钢（含钨18%）8.790-1锡黄铜8.8不锈钢（含铬13%）7.7570-1黄铜锡8.5462-1锡黄铜8.453-12-5铸锡青铜8.6960-1锡黄铜8.455-5-5铸锡青铜8.877-2铝黄铜8.66-6-3铸锡青铜8.8260-1-1铝黄铜8.25铝青铜8.258-2锰黄铜8.57铝青铜7.859-1-1铁黄铜8.59-2铝青铜7.6380-3硅黄铜8.69-4铝青铜7.64-3锡青铜8.810-3-1.5铝青铜7.54-4-2.5锡青铜8.792铍青铜8.234-4-4锡青铜8.93-1硅青铜8.476.5〜0.1锡青铜8.8铝板2.734-0.3锡青铜8.9二号防锈铝2.67五号防锈铝2.65二号锻铝2.8廿一号防锈铝2.73四号超硬铝2.8一号硬铝2.75五号铸造铝合金2.55

三号硬铝2.73六号铸造铝合金2.60十一号硬铝2.84七号铸造铝合金2.65十二号硬铝2.8十三号铸造铝合金2.67十四号硬铝2.8十五号铸造铝合金2.95二号锻铝2.69工业镁1.74四号锻铝2.65锌板7.2五号锻铝2.75铸锌6.86八号锻铝2.810-5锌铝合金6.3九号锻铝2.84-3铸锌铝合金6.754-1铸锌铝合金6.9钻8.9锡7.3〜7.5钛4.51铅板11.373钨钻合金14.9〜15.3工业镍8.96钨钻合金14.6〜15.015-20锌白铜8.68钨钻合金14.4〜14.843-0.5锰白铜8.895钨钻钛合金12.3〜13.240-1.5锰白铜8.9015钨钻钛合金11.0〜11.728-2.5-1.5镍铜合金8.8汞13.69镍铬合金8.72锰7.43锡基轴承合金7.34〜7.75铬7.19铅基轴承合金9.33〜10.67钒6.11钨19.3钼10.20铌8.57银10.5锇22.5金19.3锑6.62铂21.4镉8.64钾0.86钡3.5钠0.97铍1.85钙1.55铋9.84硼2.34铱22.4硅2.33铈6.9硒4.84钽16.6砷5.7碲6.24华山松0.437钍11.5红松0.440马尾松0.533桦木0.615云南松0.588山杨0.486红皮云杉0.417楠木0.61兴安落叶松0.625柞栎（柞木）0.766长白落叶松0.594软木0.1〜0.4四川红杉0.458胶合板0.56臭冷杉0.384刨花板0.40铁杉0.500竹材0.90杉木0.376木炭0.3〜0.5柏木0.588石墨1.9〜2.1水曲柳（柃木）0.686石膏2.3〜2.4大叶榆（榆木）0.548生石灰1.1

熟石灰1.2砂岩2.2〜2.5水泥1.2石英2.5〜2.8普通粘土砖1.7天然浮石0.4〜0.9粘土耐火砖2.10滑石2.6〜2.8硅质耐火砖1.8〜1.9金刚石3.5〜3.6镁质耐火砖2.6金刚砂4.0镁铬质耐火砖2.8普通刚玉3.85〜3.90咼铬质耐火砖2.2〜2.5白刚玉3.90大理石2.6〜2.7碳化硅3.10花岗石2.6〜3.0云母2.7〜3.1石灰石2.6〜2.8地蜡0.96石板石2.7〜2.9地沥青0.9〜1.5石蜡0.90碳化钙（电石）2.22纤维蛇纹石石棉2.2〜2.4电木（胶木）1.3〜1.4角内石石棉3.2〜3.3电玉1.45〜1.55纯橡胶0.93聚氯乙烯1.35〜1.40平胶板1.6〜1.8聚苯乙烯0.91皮革0.4〜1.2聚乙烯0.92〜0.95纤维纸板1.3赛璐珞1.35〜1.4平板玻璃2.5有机玻璃1.18实验室用器皿玻璃2.45泡沫塑料0.20耐高温玻璃2.23硬聚氯乙烯板1.35〜1.60石英玻璃2.2陶瓷2.3〜2.45B、吊用材料重量与比重表（磅/立方英尺Ib/ft3=16.0185千克/立方米kg/m3）物 质重量1b/ft3比 重琢石砌体花岗岩，正长岩，片麻岩1652.3〜3.0石灰岩，大理石1602.3〜2.8砂岩，青石1402.1〜2.4灰浆毛石砌体花岗岩，正长岩，片麻岩1552.2〜2.8石灰岩，大理石1502.2〜2.6砂岩，青石1302.0〜2.2干毛石砌体花岗岩，正长岩，片麻岩1301.9〜2.3石灰岩，大理石1251.9〜2.1砂岩，青石1101.8〜1.9砖砌体机制砖1402.2〜2.3普通砖1201.8〜2.0

软烧砖1001.5〜1.7混凝土砌体水泥，石，砂1402.2〜2.4水泥，矿渣等1301.9〜2.3水泥，焦渣等1001.5〜1.7物质重量1b/ft.3比 重各种建筑材料炉灰，煤渣40〜45—松散的硅酸盐水泥90—凝固的硅酸盐水泥1832.7〜3.2松散的石灰，石膏53〜64一凝固的灰浆1301.4〜1.9Slags,bankshag67〜72一Slags,bankscreenings98〜117一机碎渣(machineslag)95一水碎渣(slagsand)49〜55挖掘土等干粘土63一可塑湿粘土110一干粘土和砾石100一松散的干土76一压实的干土95一松散的湿土78一压实的湿土96一流动性泥土108一压实的泥土115一物质重量1b/ft.3比 重石灰岩乱石80〜85一砂岩乱石90一页岩乱石105一松散的干砾石砂90〜105一压实的干砾石砂100〜120一湿砾石砂118〜120一水中挖土砂或砾石60一砂或砾石和粘土65一粘土80一河泥90一

土壤70一乱石堆65一矿物石棉1532.1〜2.8重晶石2814.50玄武岩1842.7〜3.2铁矶土1592.55硼砂1091.7〜1.8白垩1371.8〜2.6物质重量1b/ft.3比 重粘土，泥灰岩1371.8〜2.6白云石1812.9长石，正长石1592.5〜2.6片麻岩，蛇纹石1592.4〜2.7花岗岩，正长岩1752.5〜3.1闪绿岩，暗色岩1872.8〜3.2石膏，雪花石膏1592.3〜2.8角闪岩1873.0石灰岩，大理石1652.5〜2.8菱镁土1873.0磷酸盐岩，磷灰石2003.2斑岩1722.6〜2.9天然浮石400.37〜0.90石英，火石1652.5〜2.8砂岩，青石1472.2〜2.5油页岩，页岩1752.7〜2.9皂石，滑石1692.6〜2.8采堆石玄武岩，花岗岩，片麻岩96石灰岩，大理石，石英95物质重量1b/ft.3比 重砂岩82—油页岩92—闪绿岩，角闪岩107沥青物质石油沥青811.1〜1.5无烟煤971.4〜1.7烟煤841.2〜1.5