低压流体输送用焊接钢管外径、壁厚对照表依据GB/T3091-2015 低压流体输送用焊接钢管公称口径外径(D)6810152025324050658010012515020010.213.517.221.326.933.742.448.360.376.188.9114.3139.7165.1219.1±%1D±0.5外径允许偏差9.71316.720.826.433.241.947.859.69775.33988.011113.157138.303163.449216.90910.71417.721.827.434.242.948.860.90376.861.7115.443141.097166.751221.291壁厚(t)钢管2.02.02.22.22.22.52.52.753.03.03.253.253.53..0允许偏差±%10t1.81.81.981.981.982.252.252.4752.72.72.9252.9253.153.153.62.22.22.422.422.422.752.753.0253.33.33.5753.5753.853.8.4
