本文格式为Word版，下载可任意编辑流体输送用不锈钢无缝钢管参数 流 体 输 送 用 不 锈 钢 无 缝 钢 管 ( G B / T 1 4 9 7 6 - 1 9 9 4 ) (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 4.5 5 6 7 8 9 10 11 12 13 14 15 16 17 19 68 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 70 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 73 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 76 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 80 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 83 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 89 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 95 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 102 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 108 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 114 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 121 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 127 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 133 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 140 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 146 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 152 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 159 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 168 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 180 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 194 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 219 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 245 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 237 ◎ ◎ ◎ ◎ ◎ ◎ ◎ 325 ◎ ◎ ◎ ◎ ◎ ◎ ◎ 351 ◎ ◎ ◎ ◎ ◎ ◎ ◎ 377 ◎ ◎ ◎ ◎ ◎ ◎ ◎ 426 ◎ ◎ ◎ ◎ ◎ ◎ ◎ 注:1.◎表示热轧管规格。
2．依据需方要求，经供需双方协议，可供应表 6-25 和表 6-26 规格以外的其他尺 寸的钢管，尺寸偏差执行相邻较大规格的规定 表 6-26 流体输送用不锈钢冷拔（轧）钢管的尺寸规格 外径 壁厚 0.5 0.6 0.8 1.0 1.2 1.4 1.5 1.6 2.0 2.2 2.5 2.8 3.0 3.2 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10 11 12 13 14 15 6 ● ● ● ● ● ● ● ● ● 7 ● ● ● ● ● ● ● ● ● 8 ● ● ● ● ● ● ● ● ● 9 ● ● ● ● ● ● ● ● ● ● ● 10 ● ● ● ● ● ● ● ● ● ● ● 11 ● ● ● ● ● ● ● ● ● ● ● 12 ● ● ● ● ● ● ● ● ● ● ● ● ● 13 ● ● ● ● ● ● ● ● ● ● ● ● ● 14 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 15 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 16 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 17 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 18 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 19 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 20 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 21 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 22 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 23 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 24 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 25 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 27 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 28 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 30 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 32 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 34 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 35 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 36 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 38 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 40 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 42 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 45 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 48 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 50 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 51 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 53 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 54 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 56 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 57 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 60 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 63 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 65 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 68 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 70 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 73 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 75 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 76 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 80 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 83 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 85 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 89 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 90 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 95 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 100 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 102 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 108 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 114 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 127 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 133 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 140 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 146 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 159 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 168 180 194 219 245 273 325 351 377 426 注：●表示冷拔（轧）钢管规格。
表 6-27 流体输送用不锈钢无缝钢管的尺寸允许规格偏差壁厚 热轧（挤压，扩）管 冷拔（轧）管 尺寸/mm 允许偏差/mm 尺寸/mm 允许偏差/mm 一般级 较高级 一般级 较高级 外径 D 68D159 1.25 1 外径 D 6~10 0.20 0.15 10~30 0.30 0.20 159D426 1.5 30~50 0.40 0.30 50 0.9% 0.8% 壁厚 S 15 +15 -12.5 12.5 壁厚 S 0.5~1 0.15 14% 0.12 注：钢管的弯曲度不得大于 如下规定： 壁厚15mm1.5mm/m 壁厚15mm2.0mm/m 热扩管3.0mm/m 表 6-28 流体输送用不锈钢无缝钢管的牌号和化学成分 组织类型 序号 牌号 化学成分（质量分数）（%） C Si Mn P S Ni Cr Mo Ti 其他 奥 氏 体型 1 0Cr18Ni9 0.07 1.00 2.00 0.035 0.030 8.00~ 11.00 17.00~ 19.00 - - - 2 00Cr19Ni10 0.030 1.00 2.00 0.035 0.0300 8.00~ 12.00。