流体输送用不锈钢无缝钢管 (GB/T14976-1994) (1) 尺寸规格 6-25, 6-26 (2) 允许偏差 6-27 (3)? 牌号和化学成分 6-28 (4) 力学性能 6-29 ? ? 表 6-25 流体输送用不锈钢热轧（挤，扩）无缝钢管的尺寸规格 外径 壁厚 5 6 7 8 9 10 11 12 13 14 15 16 17 19 68 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 70 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 73 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 76 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 80 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 83 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 89 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 95 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 102 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 108 ◎ ◎ ◎ ◎