外径/mm | 壁 厚/mm | ||||||||
1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 5 | 6 | |
理论质量/(kg/m) | |||||||||
10 | 0.222 | 0.314 | 0.395 | | | | | | |
14 | 0.321 | 0.462 | 0.592 | 0.709 | | | | | |
18 | | | 0.789 | 0.956 | | | | | |
19 | | | 0.838 | 1.02 | | | | | |
25 | | | 1.13 | 1.39 | 1.63 | | | | |
32 | | | | 1.82 | 2.15 | 2.46 | 2.76 | | |
38 | | | | | 2.59 | 2.98 | 3.35 | | |
45 | | | | | 3.11 | 3.58 | 4.04 | 4.93 | |
57 | | | | | | | 5.23 | 6.41 | 7.55 |
60 | | | | | | | 5.52 | 6.78 | 7.99 |
外径/mm | 壁 厚/mm | |||||||
6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | |
理论质量/(kg/m) | ||||||||
60 | 7.99 | 10.26 | 12.33 | | | | | |
83 | 11.39 | 14.80 | 18.00 | 21.01 | | | | |
89 | 12.28 | 15.98 | 19.48 | 22.79 | | | | |
102 | 14.20 | 18.54 | 22.69 | 26.63 | | | | |
114 | 15.98 | 20.91 | 25.65 | 30.18 | 34.52 | 38.67 | | |
127 | 17.90 | 23.48 | 28.85 | 34.03 | 39.01 | 43.80 | | |
141 | 19.97 | 26.24 | 32.30 | 38.17 | 43.85 | 49.32 | | |
152 | 21.60 | 28.41 | 35.02 | 41.43 | 47.64 | 53.66 | | |
159 | 22.64 | 29.79 | 36.74 | 43.50 | 50.06 | 56.42 | | |
168 | 23.97 | 31.56 | 38.96 | 46.16 | 53.17 | 59.97 | | |
219 | 31.52 | 41.63 | 51.54 | 61.62 | 70.77 | 80.10 | | |
273 | | | | 77.24 | 89.42 | 101.40 | 113.19 | 124.78 |
种 类 | 尺 寸/mm | 允许偏差/mm | 长度及允许偏差/m | |
热轧(扩)管 | 外径 | ≤159 >159 | ±1.00% ±1.25% | 4~12±0.02 |
壁厚 | ≤20 >20 | ±12.5% ±10.0% | ||
冷拔(轧)管 | 外径 | ≤30 30-50 >50 | ±0.20% ±0.30% ±0.08% | 3~10.5±0.02 |
壁厚 | ≤3 >3 | +12 % -10% ±10% |
钢类 | 牌 号 | 化学成分(质量分数)(%) | ||||||||
C | Mn | Si | Cr | Mo | Ni | Nb+Ta | S | P | ||
≤ | ||||||||||
优质 碳素钢 | 10 | 0.07-0.14 | 0.35-0.65 | 0.17-0.37 | ≤0.15 | | ≤0.25 | | 0.035 | 0.035 |
20 | 0.17-0.24 | 0.35-0.65 | 0.17-0.37 | ≤0.15 | | ≤0.25 | | 0.035 | 0.035 | |
合金钢 | 12QMo | 0.08-0.15 | 0.40-0.70 | 0.17-0.37 | 0.40-0.70 | 0.40-0.55 | ≤0.30 | | 0.035 | 0.035 |
15CrMo | 0.12-0.18 | 0.40-0.70 | 0.17-0.37 | 0.80-1.10 | 0.40-0.55 | ≤0.30 | | 0.035 | 0.035 | |
耐热钢 | 1Cr2Mo | ≤0.15 | 0.30-0.60 | 0.50-1.00 | 2.15-2.85 | 0.45-0.65 | | | 0.030 | 0.035 |
1Cr5Mo | ≤0.15 | ≤0.60 | ≤0.50 | 4.00-6.00 | 0.45-0.60 | ≤0.60 | | 0.030 | 0.035 | |
1Cr19Ni9 | 0.04-0.10 | ≤2.00 | ≤1.00 | 18.00-20.00 | | 8.00-11.00 | | 0.030 | 0.035 | |
1Cr19Ni11Nb | 0.04-0.10 | ≤2.00 | ≤1.00 | 17.00-20.00 | | 9.00-13.00 | ≤8C-1.00% | 0.030 | 0.035 |
钢类 | 牌号 | 力学性能 | 交货状态 | ||||
抗拉强度 ób/MPa | 屈服点ós/MPa | 伸长率δ5(%) | 冲击吸收功Aku/J | 布氏硬度值HBS | | ||
≥ | ≤ | | |||||
优质 碳素钢 | 10 | 330~490 | 205 | 24 | | | 热轧管终轧,冷拔管正火 |
20 | 410~550 | 245 | 21 | 39 | | 热轧管终轧,冷拔管正火 | |
合金钢 | 12CrMo | 410~560 | 205 | 21 | 55 | 156 | 热轧管终轧+回火, 冷拔管正火+回火 |
15CrMo | 440~640 | 235 | 21 | 47 | 170 | 热轧管终轧+回火, 冷拔管正火+回火 | |
耐热钢 | 1Cr2Mo | ≥(390) | (175) | (22) | (92) | (179) | 热轧管终轧+回火, 冷拔管正火+回火 |
1CrSMo | ≥390 | 195 | 22 | 92 | 187 | 退火 | |
1Cr19Ni9 | ≥520 | 205 | 35 | | | 固溶处理: 固溶温度≥1040℃ | |
1Cr19Ni11Nb | ≥520 | 205 | 35 | | | 固溶处理: 热轧管固溶温度≥1050℃冷拔(轧) 管固溶温≥1095℃ |