

| 
 钢管种类  | 
 钢管外径(D)  | 
 钢管壁厚(S)  | 
 | |
| 
 管体  | 
 钢管外径 (mm)  | 
 允许偏差(mm)  | 
 钢管外径(mm)  | 
 允许偏差(mm)  | 
| 
 ≥60.3且S<20  | 
 ±0.75%  | 
 ≤73.0  | 
 +15%,-12.5%  | 
 | 
| 
 ≥60.3且S≥20  | 
 ±1.00%  | 
 >73.0且S<20  | 
 +15%,-12.5%  | 
 | 
| 
 | 
 | 
 >73.0且S≥20  | 
 +17.5%,-10  | 
 | 
| 
 标准  | 
 牌号  | 
 抗拉强度(MPa)  | 
 屈服强度(MPa)  | 
 屈强比  | 
 伸长率(%)  | 
 0℃冲击功  
  Akv(J)  | 
 热处理状态  | 
| 
 API SPEC 5L  
  GB/T9711.2  | 
 B  | 
 ≥415  | 
 245~440  | 
 ≤0.80  | 
 22  | 
 ≥40  | 
 正火  | 
| 
 X42  | 
 ≥415  | 
 290~440  | 
 ≤0.80  | 
 21  | 
 ≥40  | 
 正火  | 
 | 
| 
 X52  | 
 ≥460  | 
 360~510  | 
 ≤0.85  | 
 20  | 
 ≥40  | 
 正火  | 
 | 
| 
 X60  | 
 ≥520  | 
 415~565  | 
 ≤0.85  | 
 18  | 
 ≥40  | 
 正火  | 
 | 
| 
 X65  | 
 ≥535  | 
 450~570  | 
 ≤0.90  | 
 18  | 
 ≥40  | 
 淬火+回火  | 
 | 
| 
 X70  | 
 ≥570  | 
 485~605  | 
 ≤0.90  | 
 18  | 
 ≥40  | 
 淬火+回火  | 
 | 
| 
 标准  | 
 牌号  | 
 化学成分(%)  | 
 CEV(%)  | 
 | ||||||
| 
 C  | 
 Si  | 
 Mn  | 
 P  | 
 S  | 
 V  | 
 Nb  | 
 Ti  | 
 | ||
| 
 API SPEC 5L  
  GB/T9711.2  | 
 B  | 
 ≤0.16  | 
 ≤0.40  | 
 ≤1.10  | 
 ≤0.020  | 
 ≤0.010  | 
 -  | 
 -  | 
 -  | 
 ≤0.42  | 
| 
 X42  | 
 ≤0.17  | 
 ≤0.40  | 
 ≤1.20  | 
 ≤0.020  | 
 ≤0.010  | 
 ≤0.05  | 
 ≤0.05  | 
 ≤0.04  | 
 ≤0.42  | 
 | 
| 
 X52  | 
 ≤0.20  | 
 ≤0.45  | 
 ≤1.60  | 
 ≤0.020  | 
 ≤0.010  | 
 ≤0.10  | 
 ≤0.05  | 
 ≤0.04  | 
 ≤0.45  | 
 | 
| 
 X60  | 
 ≤0.21  | 
 ≤0.45  | 
 ≤1.60  | 
 ≤0.020  | 
 ≤0.010  | 
 ≤0.15  | 
 ≤0.05  | 
 ≤0.04  | 
 协议  | 
 | 
| 
 X65  | 
 ≤0.16  | 
 ≤0.45  | 
 ≤1.60  | 
 ≤0.020  | 
 ≤0.010  | 
 ≤0.06  | 
 ≤0.05  | 
 ≤0.06  | 
 ≤0.45  | 
 | 
| 
 X70  | 
 ≤0.16  | 
 ≤0.45  | 
 ≤1.70  | 
 ≤0.020  | 
 ≤0.010  | 
 ≤0.06  | 
 ≤0.05  | 
 ≤0.06  | 
 ≤0.45  | 
 | 
| 
 名义尺寸  
  Nominal Size  | 
 外径  
  Outside Diameter  | 
 壁厚  
  Wall Thickness  | 
 平端管米重  
  Plain-end Weight  | 
 | ||
| 
 inch  | 
 mm  | 
 inch  | 
 mm  | 
 lb/ft  | 
 kg/m  | 
 | 
| 
 0.405  | 
 0.405  | 
 10.29  | 
 0.095  | 
 2.4  | 
 0.31  | 
 0.47  | 
| 
 0.54  | 
 0.54  | 
 13.72  | 
 0.088  | 
 2.2  | 
 0.43  | 
 0.62  | 
| 
 0.54  | 
 13.72  | 
 0.119  | 
 3.0  | 
 0.54  | 
 0.79  | 
 | 
| 
 0.675  | 
 0.675  | 
 17.15  | 
 0.091  | 
 2.3  | 
 0.57  | 
 0.84  | 
| 
 0.675  | 
 17.15  | 
 0.126  | 
 3.2  | 
 0.74  | 
 1.10  | 
 | 
| 
 0.84  | 
 0.84  | 
 21.34  | 
 0.109  | 
 2.8  | 
 0.85  | 
 1.28  | 
| 
 0.84  | 
 21.34  | 
 0.147  | 
 3.7  | 
 1.09  | 
 1.61  | 
 | 
| 
 1.05  | 
 1.05  | 
 26.67  | 
 0.113  | 
 2.9  | 
 1.13  | 
 1.70  | 
| 
 1.05  | 
 26.67  | 
 0.154  | 
 3.9  | 
 1.48  | 
 2.19  | 
 | 
| 
 1.315  | 
 1.315  | 
 33.4  | 
 0.133  | 
 3.4  | 
 1.68  | 
 2.52  | 
| 
 1.315  | 
 33.4  | 
 0.179  | 
 4.6  | 
 2.17  | 
 3.21  | 
 | 
| 
 1.660  | 
 1.660  | 
 42.2  | 
 0.145  | 
 3.7  | 
 2.72  | 
 3.43  | 
| 
 1.660  | 
 42.2  | 
 0.191  | 
 4.9  | 
 3.00  | 
 4.51  | 
 | 
| 
 1.900  | 
 1.660  | 
 42.2  | 
 0.382  | 
 9.7  | 
 5.22  | 
 7.77  | 
| 
 1.900  | 
 48.3  | 
 0.145  | 
 3.7  | 
 2.72  | 
 4.07  | 
 | 
| 
 1.900  | 
 48.3  | 
 0.200  | 
 5.1  | 
 3.63  | 
 5.43  | 
 | 
| 
 1.900  | 
 48.3  | 
 0.400  | 
 10.2  | 
 6.41  | 
 9.58  | 
 | 
| 
 2 3/8  | 
 2.375  | 
 60.3  | 
 0.109  | 
 2.8  | 
 2.64  | 
 3.97  | 
| 
 2.375  | 
 60.3  | 
 0.125  | 
 3.2  | 
 3.00  | 
 4.51  | 
 | 
| 
 2.375  | 
 60.3  | 
 0.141  | 
 3.6  | 
 6.36  | 
 5.03  | 
 |