中国国家标准钢管规格表.doc

o 中国国家标准钢管规格表o 2008-9-26 15:03:36 已浏览：8776次 o厚度管重/米直径厚度管重/米159415.2982010199.75518.9912239.10622.6414278.26219421.219208179.92526.399202.19631.5210224.41736.6012268.70841.6314312.79273533.0410208199.65639.519224.38745.9210249.07852.2812298.29325539.4614347.31647.2016396.14754.8918444.77862.54122010298.39970.1312357.471077.6814416.36377654.8916475.05763.87142012416.66872.8014485.41981.6716553.961090.50162012475.84426662.1414554.46772.3316632.87882.4618711.10992.55182012535.0210102.5914623.50480670.1316711.79781.6518799.87893.1220887.769104.53202014692.5510115.9016790.70529790.1118888.658102.7820986.409115.41221083.9510127.99222016869.616308122.7118977.429137.82221192.4610152.89241299.687208140.46242016948.529157.80181066.2010175.09201183.688208160.19221300.969179.99241418.05o 钢管标准-主要质量指标对照表o 标准代号内容项目SY/T5037-2000GB/T9711.1-1997（A级）API Spec 5L(42)适用范围燃气、水、煤气、空气、采暖、蒸气等普通流体输送管道用钢管石油天然气工业输送用钢管石油天然气工业输送用钢管钢种Q195、Q215、Q235L175L483A、B、X42X70尺寸管体外径D508 0.75%D D508 1.00%DD508 0.75%D D508 1.00%DD508 0.75%D 508D914 -0.25%D+0.75%DD914 -3.20+6.35管端外径D508 0.75%D 2.5 取小值 D508 1.00%D 4.5 取小值D273.1 -0.40+1.59 D323.9 -0.79+2.38D273.1 -0.40+1.59 D273.1 -0.79+2.38偏差壁厚D50812.5%t-12.5%t+15.0%t-12.5%t+15.0%tD50810.0%tL175L245 -10.0%t+17.5%t不高于B级 -12.5%t+17.5%tL290L555 -8.0%t+19.5%t不低于X42 -8.0%t +19.5%t椭圆度管端100范围内1%DD508的钢管在距管端101.6范围内最大外径不得比公称外径大1%;最小外径不得比公称外径小1%D508的钢管在距管端101.6范围内最大外径不得比公称外径大1%;最小外径不得比公称外径小1%弯曲度（直度）不得超过钢管总长的0.2%不得超过钢管总长的0.2%不得超过钢管总长的0.2%管端坡口坡口角 30-35 钝边1.60.8坡口角30-35 钝边1.590.79坡口角30-35 钝边1.590.79切斜D813 , 1.6 D813 , 3.01.591.59错边t12.70.35t且不得大于3.01.591.59t12.70.25t0.1251与3.18的取最小值0.1251与3.18的取最小值焊缝余高t133.2 t13 4.8t12.73.18 t12.7 4.76t12.73.18 t12.7 4.76化学分析每熔炼批取1个试样每熔炼批取2个试样每熔炼批取2个试样拉伸试样每检验批取一个焊接接头试样母材:每熔炼批取1个试样 螺旋焊缝:每熔炼批取1个试样对头焊缝:不多于50根取一个试样母材:每熔炼批取1个试样 螺旋焊缝:每熔炼批取1个试样对头焊缝:不多于50根取一个试样导向弯曲试验不做每检验批取一个正弯试样和一个反弯试样,对头焊缝不多于50根取一个正弯试样和一个反弯试样每检验批取一个正弯试样和一个反弯试样,对头焊缝不多于50根取一个正弯试样和一个反弯试样断裂韧性试验不做合同要求时,夏比冲击每熔炼批取3个; D508时,落锤冲击每熔炼批取2个合同要求时,夏比冲击每熔炼批取3个; D508时,落锤冲击每熔炼批取2个无损检验补焊焊缝,对头焊缝,环向焊缝应进行X射线或超声波检验;螺旋焊缝抽查20%的钢管,用于可燃气体输送管的螺旋焊缝应100%的检验100X检验或100%超声波检测,加对头焊缝、丁字焊缝和管端2