常用平焊法兰及螺栓规格尺寸（摘自HG5010-58）单位：毫米公称直径管子法兰(毫米)螺栓焊缝外径壁厚外径螺栓孔中心圆直径连接凸出部分直径连接凸出部分高度厚度螺栓孔直径重量数量规格焊缝的直角边焊缝离法兰面距离Dg d H S D D1D2f b d Kg n 直径×长度K HPg=1公斤/厘米210 15 201418253337580905055653540502228881212120.200.230.30444M10×30M10×30M10×3033344425 32 403238453.53.53.510012013075901006070802238881214140.370.530.58444M10×30M12×30M12×3044455550 70 805776893.54414016018511013015090110128333810101414180.641.021.39444M12×30M12×30M16×40455566100 125 150108133159444.52052352601702002251481782023331010121818181.571.982.62488M16×40M16×40M16×45555666175 200 2251342192456672903153402552803052322582823331414141818183.263.804.10888M16×50M16×50M16×50678789250 300 3502733253778893704354853353954453123654153441416161823234.656.837.64121212M16×50M20×55M20×559910101011400 450 5004264785299995355906404955506004655205704441818202323239.5811.1013.50161616M20×60M20×60M20×60101010111111600 700 800631)72082099975586097570581092067077588055520222425253017.1525.3033.90202424M22×65M22×70M27×80101010111111900 1000 120092010201220991010751175137510201l2013209801080128055524262630303037.9045.7057.10242832M27×80M27×85M27×851010111111121400 1600142016201112157517851520173014801690552828303073.2088.003640M27×85M27×8512131314Pg=2.5公斤/厘米210 15 20“18253337580905055653540502221010121212120.2540.290.45444M10×35M10×35M10×4033344425 32 403238453.53.53.510012013075901006070802231212121214140.5530.7950.87444M10×40M12×40M12×4044455550 70 805776893.544140160185110130150901101283331214141414180.9541.431.95444M12×40M12×45M16×50455566公称直径外径壁厚外径螺栓孔中心圆直径连接凸出部分直径连接凸出部分高度厚度螺栓孔直径重量数量规格焊缝的直角边焊缝离法兰面距离Dg d H S D D1D2f b d Kg n直径×长度K HPg=2.5公斤/厘米2100 126 150108133159444.52052352601702002251481782023331414161818182.22.783.49488M16×50M16×50M16×50555666175 200 2251942192456672903153402552803052322582823331618201818183.864.885.93888M16×50M16×53M16×60678789250 300 3502733253778893704354853353954453123654153442222221823237.329.410.5121212M16×65M20×70M20×709910101l11400 450 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50042647852999961066073055060066050555561544444485234344144.951.9267.3162020M30×120M30×130M36×150101010111111。