/* Style Definitions */ table.MsoNormalTable{mso-style-name:普通表格;mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-parent:"";mso-padding-alt:0cm 5.4pt 0cm 5.4pt;mso-para-margin:0cm;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:10.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman";mso-ansi-language:#0400;mso-fareast-language:#0400;mso-bidi-language:#0400;}標準： 　　API SPEC 5L——美國石油學會標準 　　GB/T9711——中國國家標準 　　用途： 　　用于石油、天然氣工業中的氧、水、油輸送管 　　主要生產鋼管牌號： 　　B、X42、X52、X60、X65、X70 L245 L290 L320 L360 L390 L450 L485 　　尺寸公差: 　　 鋼管種類鋼管外徑（D）鋼管壁厚（S）管體鋼管外徑 (mm)允許偏差(mm)鋼管外徑(mm)允許偏差(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　力學性能： 　　 標準牌號抗拉強度（MPa）屈服強度（MPa）屈強比伸長率（%）0℃沖擊功 Akv（J）熱處理狀態API SPEC 5L GB/T9711.2B≥415245～440≤0.8022≥40正火X42≥415290～440≤0.8021≥40正火X52≥460360～510≤0.8520≥40正火X60≥520415～565≤0.8518≥40正火X65≥535450～570≤0.9018≥40淬火+回火X70≥570485～605≤0.9018≥40淬火+回火　化學成分: 　　 標準牌號化學成分（%）CEV（%）CSiMnPSVNbTiAPI SPEC 5L GB/T9711.2B≤0.16≤0.40≤1.10≤0.020≤0.010－－－≤0.42X42≤0.17≤0.40≤1.20≤0.020≤0.010≤0.05≤0.05≤0.04≤0.42X52≤0.20≤0.45≤1.60≤0.020≤0.010≤0.10≤0.05≤0.04≤0.45X60≤0.21≤0.45≤1.60≤0.020≤0.010≤0.15≤0.05≤0.04協議X65≤0.16≤0.45≤1.60≤0.020≤0.010≤0.06≤0.05≤0.06≤0.45X70≤0.16≤0.45≤1.70≤0.020≤0.010≤0.06≤0.05≤0.06≤0.45　注： 　　1．0.015%≤Altot<0.06%；N≤0.012%；Al/N≥2/1；Cu≤0.25%；Ni≤0.30%；Cr≤0.30%；Mo≤0.10% 　　2．V+Nb+Ti≤0.15 　　3．X60、X65、X70經協商Mo≤0.35% 　　美國石油學會標準(API SPEC 5L )管線管規格表 　　 名義尺寸 Nominal Size外徑 Outside Diameter壁厚 Wall Thickness平端管米重 Plain-end Weightinchmminchmmlb/ftkg/m0.4050.40510.290.0952.40.310.470.540.5413.720.0882.20.430.620.5413.720.1193.00.540.790.6750.67517.150.0912.30.570.840.67517.150.1263.20.741.100.840.8421.340.1092.80.851.280.8421.340.1473.71.091.611.051.0526.670.1132.91.131.701.0526.670.1543.91.482.191.3151.31533.40.1333.41.682.521.31533.40.1794.62.173.211.6601.66042.20.1453.72.723.431.66042.20.1914.93.004.511.9001.66042.20.3829.75.227.771.90048.30.1453.72.724.071.90048.30.2005.13.635.431.90048.30.40010.26.419.582 3/82.37560.30.1092.82.643.972.37560.30.1253.23.004.512.37560.30.1413.66.365.03您可能還感興趣的產品：抽油桿鉆 桿石 油套管流體管焊接鋼管 2012年3月29日23:11:16