廠家介紹結(jié)構(gòu)用無縫鋼管執(zhí)行標(biāo)準(zhǔn)是什么

國(guó)標(biāo)結(jié)構(gòu)用無縫鋼管主要依據(jù)的標(biāo)準(zhǔn)為GB/T9711-1997石油天然氣工業(yè)輸送鋼管，其中有包括GB/T9771.1（代表A級(jí)鋼）和GB/T9711.2（代表B級(jí)鋼），GB9711.2包括的質(zhì)量和試驗(yàn)要求在總體上高于GB9711.1的規(guī)定，GB9711.2一般適用于可燃流體輸送用鋼管，不適用于鑄管。部標(biāo)結(jié)構(gòu)用無縫鋼管標(biāo)準(zhǔn)是SY/T5037-2000（普通流體輸送管道用螺旋縫埋弧焊冷拔鋼管），此標(biāo)準(zhǔn)為部標(biāo)，GB/T9711為國(guó)標(biāo)，國(guó)標(biāo)對(duì)鋼管的要求比部標(biāo)要高。（5037是普通流動(dòng)輸送管道用鋼管；9711是工業(yè)輸送用鋼管）；

The seamless steel pipe for national standard structure is mainly based on GB/T9711-1997 oil and gas industry transmission pipe, which includes GB/T9771.1 (representing grade A steel) and GB/T9711.2 (representing grade B steel). The quality and test requirements of GB9711.2 are generally higher than those of GB9711.1. GB9711.2 is generally applicable to flammable fluid transmission. Steel pipe, not suitable for cast pipe. SY/T5037-2000 (Spiral Submerged Arc Welded Steel Pipe for Common Fluid Pipeline) is the standard of seamless steel pipes for ministerial standard structure. This standard is the ministerial standard and GB/T9711 is the national standard. The requirement of the national standard for steel pipes is higher than that of the ministerial standard. (5037 is steel pipe for ordinary flow pipeline and 9711 is steel pipe for industrial transportation); 國(guó)標(biāo)鋼管的性能如下；SY/T5037-2000 GB/T9711.1-1997（A級(jí)） API Spec 5L(42)

The performance of national standard steel pipe is as follows: SY/T5037-2000 GB/T9711.1-1997 (A level) API Spec 5L (42)

【適用范圍】 燃?xì)狻⑺�、煤氣、空氣、采暖、蒸氣等普通流體輸送管道用鋼管 石油天然氣工業(yè)輸送用鋼管 石油天然氣工業(yè)輸送用鋼管

[Scope of application] Steel pipes for oil and natural gas industrial transportation

鋼種 Q195、Q215、Q235 L175——L483 A、B、X42——X70

Steel grades Q195, Q215, Q235 L175-L483 A, B, X42-X70

尺寸 管體外徑 D＜508 ±0.75%D D≥508 ±1.00%D，D＜508 ±0.75%D D≥508 ±1.00%D ，D＜508 ±0.75%D 508≥D≥914 -0.25%D～+0.75%D，D＞914 -3.20～+6.35

Dimensional tube external diameter D<508+0.75%D>508+1.00%D,D<508+0.75%D>508+1.00%D,D<508+0.75%D>508+1.00%D,D<508+0.75%D 508>D>914-0.25%D~+0.75%D,D>914-3.20~+6.35%D

管端外徑 D＜508 ±0.75%D ±2.5 取小值 D≥508 ±1.00%D ±4.5 取小值，D≤273.1 -0.40～+1.59 D＞323.9 -0.79～+2.38，D≤273.1 -0.40～+1.59 D＞273.1 -0.79～+2.38

The exterior diameter of the tube end D < 508 +0.75% D +2.5, D < 508 +1.00% D +4.5, D < 273.1-0.40 ~+1.59 D > 323.9-0.79 ~+2.38, D < 273.1-0.40 ~+1.59 D > 273.1-0.79 ~+2.38, D < 0.40 ~+1.59 D > 273.1-0.79 ~+2.38

偏差 壁厚 D＜508 ±12.5%t -12.5%t～+15.0%t -12.5%t～+15.0%t，D≥508 ±10.0%t L175～L245 -10.0%t～+17.5%t 不高于B級(jí) -12.5%t～+17.5%t，L290～L555 -8.0%t～+19.5%t 不低于X42 -8.0%t ～+19.5%t

The deviation wall thickness D < 508 +12.5% t-12.5% t ~+15.0% t-12.5% t ~+15.0% t, D <508 +10.0% t L175-L245-10.0% t ~+17.5% t is not higher than grade B-12.5% t ~+17.5% t, L290-L555-8.0% t ~+19.5% t is not lower than X42-8.0% t ~+19.5% t.

【化學(xué)分析】：每熔煉批取1個(gè)試樣，每熔煉批取2個(gè)試樣，每熔煉批取2個(gè)試樣；拉伸試樣：每檢驗(yàn)批取一個(gè)焊接接頭試樣；母材取樣：每熔煉批取1個(gè)試樣；螺旋焊管焊縫：每熔煉批取1個(gè)試樣對(duì)頭焊縫；不多于50根取一個(gè)試樣母材，每熔煉批取1個(gè)試樣；螺旋焊縫：每熔煉批取1個(gè)試樣對(duì)頭焊縫：不多于50根取一個(gè)試樣；

[Chemical analysis]: 1 sample per smelting batch, 2 samples per smelting batch and 2 samples per smelting batch; tensile sample: 1 weld joint sample per inspection batch; base material sampling: 1 sample per smelting batch; spiral welded pipe weld: 1 butt weld per smelting batch; no more than 50 sample Masters Material, 1 specimen per smelting batch; Spiral weld: 1 specimen butt weld per smelting batch: not more than 50 samples;

【檢測(cè)檢驗(yàn)】：導(dǎo)向彎曲試驗(yàn):不做,每檢驗(yàn)批取一個(gè)正彎試樣和一個(gè)反彎試樣,對(duì)頭焊縫不多于50根取一個(gè)正彎試樣和一個(gè)反彎試樣.每檢驗(yàn)批取一個(gè)正彎試樣和一個(gè)反彎試樣,對(duì)頭焊縫不多于50根取一個(gè)正彎試樣和一個(gè)反彎試樣。斷裂韌性試驗(yàn):不做,合同要求時(shí),夏比沖擊每熔煉批取3個(gè); D≥508時(shí),落錘沖擊每熔煉批取2個(gè)合同要求時(shí),夏比沖擊每熔煉批取3個(gè); D≥508時(shí),落錘沖擊每熔煉批取2個(gè)無損檢驗(yàn) 補(bǔ)焊焊縫,對(duì)頭焊縫,環(huán)向焊縫應(yīng)進(jìn)行X射線或超聲波檢驗(yàn);螺旋焊縫抽查20%的鋼管,用于可燃?xì)怏w輸送管的螺旋焊縫應(yīng)100%的檢驗(yàn),100X檢驗(yàn)或100%超聲波檢測(cè),加對(duì)頭焊縫、丁字焊縫和管端203mm X射線檢驗(yàn) 100X檢驗(yàn)或100%超聲波檢測(cè),加對(duì)頭焊縫、丁字焊縫和管端203mm X射線檢驗(yàn) D:鋼管公稱外徑,mm t:鋼管公稱壁厚,mm [σ]靜水壓試驗(yàn)的試驗(yàn)應(yīng)力,MPa;L:單根鋼管長(zhǎng)度 P:靜水壓試驗(yàn)壓力,Pa

[Inspection and Inspection] Guided bending test: No, one positive bending specimen and one reverse bending specimen are selected for each inspection batch, and no more than 50 counterpart welds are taken one positive bending specimen and one reverse bending specimen. One positive bending specimen and one reverse bending specimen are taken for each inspection batch, and no more than 50 counterpart welds are taken one positive bending specimen and one reverse bending specimen. Fracture toughness test: No, when the contract requires, Shapi impact takes 3 batches per smelting; when D (> 508), Shapi impact takes 3 batches per smelting when D (> 508), Shapi impact takes 3 batches per smelting when D (> 508), and when D (> 508), Shapi impact takes 2 non-destructive inspection repair welds per smelting batch, X-ray or ultrasonic inspection shall be carried out for head welds and circumferential welds; Rotary weld spot checking 20% of steel pipes should be used for spiral weld inspection of flammable gas pipeline, 100% X-ray inspection or 100% ultrasonic inspection, 100% X-ray inspection or 100% ultrasonic inspection of butt weld, T-shaped weld and 203 mm X-ray inspection of pipe end, and D: nominal outer diameter of steel pipe, mm t: X-ray inspection of butt weld, T-shaped weld and 203 mm X-ray inspection of pipe end. Nominal wall thickness of steel pipe, test stress of mm [_] hydrostatic test, MPa; L: length of single steel pipe P: hydrostatic test pressure, Pa

【結(jié)構(gòu)用無縫鋼管水壓標(biāo)準(zhǔn)】：部標(biāo)大口徑結(jié)構(gòu)用無縫鋼管與國(guó)標(biāo)結(jié)構(gòu)用無縫鋼管的主要區(qū)別標(biāo)準(zhǔn)的國(guó)標(biāo)鋼管不允許Q235B材質(zhì)，必須是管線鋼部標(biāo)結(jié)構(gòu)用無縫鋼管主要使用符號(hào)D-----鋼管標(biāo)稱外徑mm T----鋼管標(biāo)稱壁厚mm M----鋼管線質(zhì)量kg/mP----靜水試驗(yàn)的試驗(yàn)壓力Mpa S----靜水試驗(yàn)的試驗(yàn)應(yīng)力Mpa h----焊縫余高mm；

[Hydraulic Pressure Standard for Seamless Steel Tubes for Structures]: The main difference between seamless steel tubes for large-caliber structures and seamless steel tubes for national standard structures is that Q235B material is not allowed in national standard steel tubes. It must be the main symbol D - - - pipe nominal diameter T - - - pipe nominal wall thickness mm M - - - pipe line for pipeline steel partial standard structures. Mass kg/mP - test pressure of hydrostatic test Mpa S - Test Stress of hydrostatic test Mpa H - residual weld height mm;