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304不锈钢管对接焊焊高2mm能承受2.8MPa压力(DN100的管道)
依据:
厚度负偏差 forming allowance= 12.50%
腐蚀余量 corrosion allowance (mm) = 0
焊缝系数 welding facotr E= 0.8
许用应力allowable stress(MPa) S= 115 MPa (304L材质)
按GB/T20801, 计算,外径=114mm, 壁厚=2mm
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