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 格焊缝旳直角边焊缝离法兰面距离DgdHSDD1D2fbdKgn直径×长度KHPg=1公斤/厘米21015201418253337580905055653540502228881212120.200.230.30444M10 × 30M10 × 30M10 × 303334442532403238453.53.53.510012013075901006070802238881214140.370.530.58444M10 × 30M12 × 30M12 × 304445555070805776893.54414016018511013015090110128333810101414180.641.021.39444M12 × 30M12 × 30M16 × 40455566100125150108133159444.52052352601702002251481782023331010121818181.571.982.62488M16 × 40M16 × 40M16 × 455556661752002251342192456672903153402552803052322582823331414141818183.263.804.10888M16 × 50M16 × 50M16 × 506787892503003502733253778893704354853353954453123654153441416161823234.656.837.64121212M16 × 50M20 × 55M20 × 5599101010114004505004264785299995355906404955506004655205704441818202323239.5811.1013.50161616M20 × 60M20 × 60M20 × 60101010111111600700800631)72082099975586097570581092067077588055520222425253017.1525.3033.90202424M22 × 65M22 × 70M27 × 801010101111119001000120092010201220991010751175137510201l2013209801080128055524262630303037.9045.7057.10242832M27 × 80M27 × 85M27 × 8510101111111214001600142016201112157517851520173014801690552828303073.2088.003640M27 × 85M27 × 8512131314Pg =2.5公斤/厘米2101520“18253337580905055653540502221010121212120.2540.290.45444M10 × 35M10 × 35M10 × 403334442532403238453.53.53.510012013075901006070802231212121214140.5530.7950.87444M10 × 40M12 × 40M12 × 404445555070805776893.544140160185110130150901101283331214141414180.9541. 431.95444M12 × 40M12 × 45M16 × 50455566 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 格焊缝旳直角边焊缝离法兰面距 离DgdHSDD1D2fbdKgn直径×长度KHPg =2.5公斤/厘米2100126150108133159444.52052352601702002251481782023331414161818182.22.783.49488M16 × 50M16 × 50M16 × 505556661752002251942192456672903153402552803052322582823331618201818183.864.885.93888M16 × 50M16 × 53M16 × 606787892503003502733253778893704354853353954453123654153442222221823237.329.410.5121212M16 × 65M20 × 70M20 × 709910101l1140045050042647852999953559064049555060046552057044422242423232311.714.916.2161616M20 × 70M20 × 70M20 × 7010101011111160070080063072082099975586097570581092067077588055524262625253020.629.936.7202424M22 × 75M22 × 80M27 × 85101010111111900100012009201020122099101075 1175 13751020112013209801080128055528 30 3030 20 3044.252.765.9242832M27 × 95M27 × 90M27 × 9010101111111214001600142016201112 1575 17851520173014801690553232303078.394.33640M27 × 95M27 × 95121313i4Pg =6公斤/厘米2101520141825333.57580905055653540502221212141212120.3190.3350.536444M10 × 40M10 × 40M10 × 403334442532403238453.53.53.510012013075901006070802231416161214140.6411.0971.219444M10 × 40M12 × 50M12 × 5044455550。