2024連續(xù)油管技術(shù)規(guī)范

連續(xù)油管技術(shù)規(guī)范目 次前 言 IV1范圍 1規(guī)性用件 1術(shù)和義 2購提的息 7購的制要求 7方選的求 7材和造藝 85.18接藝 9處理 9追性 9藝缺陷 95.610材要求 10學(xué)分求 10械能 10尺、位度量長度 127.1127.2度橫面 127.3127.412位度量 13管接縫 138試驗(yàn) 13驗(yàn)備——量器的度 13學(xué)分驗(yàn)——學(xué)分的次 13學(xué)能驗(yàn) 14壓驗(yàn) 16徑通球試驗(yàn) 17粒寸非屬雜 17比V缺沖驗(yàn) 18勞命測 18I效驗(yàn) 189無檢測 189.118損測考樣 18員質(zhì) 18測準(zhǔn) 18損測法 19帶端焊和管—管接線測法 19他損測法焊接測 20焊的聲電檢測 20粉液滲檢測 21缺和欠處置 221022化分復(fù)驗(yàn) 22拉復(fù)驗(yàn) 22壓復(fù)驗(yàn) 23擴(kuò)復(fù)驗(yàn) 23硬復(fù)驗(yàn) 23斷韌復(fù)驗(yàn) 24112411.1總則 2411.2標(biāo)順序 2411.3長度 2512層防護(hù) 2512.1涂層 2512.2腐防護(hù) 25132513.1總則 2513.2合證 25盤文件 25記保存 26附錄A（范性）表 27附錄B規(guī)性）位換算 55附錄C規(guī)性）充求 58附錄D（料性）續(xù)管運(yùn)工筒 62附錄E規(guī)性）續(xù)管接接求 63附錄F（規(guī)性）帶接部管接焊工規(guī)范 64II附錄G（范性）方驗(yàn) 65附錄H（范性）續(xù)管勞驗(yàn)法 66III連續(xù)油管范圍本文件適用于碳鋼和低合金鋼連續(xù)油管的制造和檢驗(yàn)。（GB/T9445 無損檢測人員資格鑒定與認(rèn)證（Non-destructivetestingQualificationandcertificationofpersonnel,IDTISO9712:2005）ISO1027 無損檢測用射線像質(zhì)計(jì)原理和辨識方法（Radiographicimagequalityindicatorsfornon-destructivetesting--Principlesandidentification）ISO4967 （Steel-Determinationofcontentofnonmetallicinclusions-Micrographicmethodusingstandardsdiagrams）API1104 道相設(shè)施焊ofpipelinesandrelatedfacilities）ASMEIX 鍋和力器規(guī)范接釬評andbrazingqualifications）ASNT無損檢驗(yàn)人員的資格評定和證書（Personnelqualificationandcertificationinnondestructivetesting）ASTMA370 鋼制品機(jī)械性能標(biāo)準(zhǔn)試驗(yàn)方法和定義（Standardtestmethodsanddefinitionsformechanicaltestingofsteelproducts）ASTMA450 碳鋼、鐵素體合金鋼和奧氏體合金鋼鋼管的一般要求（Standardspecificationforgeneralrequirementsforcarbon,ferriticandausteniticalloysteeltubes）ASTMA751 （Standardtestmethods,practices,andterminologyforchemicalanalysisofsteelproducts）ASTME4 （Standardpracticesforforceverificationoftestingmachine）ASTME23 （Standardtestmethodsfornotchedbarimpacttestingofmetallicmaterials）ASTME83 （Standardpracticeforverificationandclassificationofextensometersystems）ASTME94 （Standardguideforradiographicexamination）1ASTM平晶粒測定法（Standardtestmethodsfordeterminingaveragegrainsize）ASTME140 屬準(zhǔn)度換表（Standardhardnessconversiontableformetals）ASTME164 （Standardpracticeforcontactultrasonictestingofweldments）ASTME165 （Standardpracticeforliquidpenetrantexamination）ASTME213 屬超檢驗(yàn)法（Standardpracticeforultrasonictestingofmetalpipeandtubing）ASTME273 焊管管焊區(qū)超檢方法（Standardpracticeforultrasonicexaminationoftheweldzoneofweldedpipeandtubing）ASTME309 （StandardPracticeforeddy-currentexaminationofsteeltubularproductsusingmagneticsaturation）ASTME384 材料的顯微硬度測試方法（Standardtestmethodformicroindentationhardnessofmaterials）ASTME570 鐵磁性鋼管產(chǎn)品漏磁檢驗(yàn)方法（Standardpracticeforfluxleakageexaminationofferromagneticsteeltubularproducts）ASTME709 （Standardguideformagneticparticletesting）ASTME747（Standardpracticefordesign,manufacture,andmaterialgroupingclassificationforwireimagequalityindicators(IQIs)usedforradiology）ASTME797手工超聲脈沖回波接觸法測厚標(biāo)準(zhǔn)操作方法（Standardpracticeformeasuringthicknessbymanualultrasonicpulse-echocontactmethod）ASTME1025射線照相用孔型像質(zhì)計(jì)（IQI）的設(shè)計(jì)、制造與材料分組的標(biāo)準(zhǔn)操作方法（Standardpracticefordesign,manufacture,andmaterialgroupingclassificationofhole-typeimagequalityindicatorsusedforradiology）下列術(shù)語和定義適用于本文件。3.1盤卷前狀態(tài)asmilledcondition已完成除盤卷外，所有廠房內(nèi)加工的油管。3.2包辛格效應(yīng)Bauschingereffect在多晶粒金屬（包括鋼）中出現(xiàn)的由于服役負(fù)載、卷取或矯直引起一個(gè)方向發(fā)生塑性變形，導(dǎo)致另一方向屈服強(qiáng)度降低的現(xiàn)象。3.32校準(zhǔn)calibration\h示\h3.4連續(xù)油管coiledtubing按本文件連續(xù)制造的碳鋼或低合金鋼鋼管產(chǎn)品。3.5完井管柱completionstring置于井中用作排放或者輸送生產(chǎn)液或注入液的管柱。3.6連制管continuouslymilledtubing制造長度大于61m（200ft）的連續(xù)油管。3.7缺陷defect按本文件規(guī)定的驗(yàn)收極限，大小足以導(dǎo)致產(chǎn)品拒收的缺欠。3.8摔坑dent由于機(jī)械沖擊造成的表面輪廓的局部改變，該過程無金屬的缺失。3.9電火花切割機(jī)electro-dischargemachine（EDM）用電火花方法對材料進(jìn)行可控切割的機(jī)械。3.10晶粒度grainsize不考慮孿晶和亞晶晶界時(shí)，多晶體金屬晶粒大小的度量。注：晶粒度通常在包含大量晶粒的一個(gè)截面上測量。平均晶粒度一般用單位體積或單位面積內(nèi)的平均直徑表示。3.11毛刺flash3.12內(nèi)毛刺flash-in焊縫成型過程中在鋼管內(nèi)表面形成的毛刺。3.13刮槽gouge3因機(jī)械作用去除金屬形成的狹長凹槽或空腔。3.14熱影響區(qū)heat-affectedzone（HAZ）3.15高頻感應(yīng)焊highfrequencyinductionwelding（HFI）3.16缺欠imperfection按本文件中規(guī)定的NDT方法在產(chǎn)品壁厚內(nèi)部或產(chǎn)品表面檢查出的不連續(xù)。3.17夾雜inclusion非金屬雜質(zhì)的細(xì)小顆粒，通常是凝固后留在鋼中的氧化物、硫化物和硅酸鹽等夾雜物。3.18鎮(zhèn)靜鋼killedsteel（3.19分層lamination金屬內(nèi)部產(chǎn)生的通常平行于表面的層狀分離。3.20線性缺欠linearimperfection線形的不規(guī)則狀態(tài)，包括（但不局限于）裂紋，結(jié)疤，切口和劃痕。3.21制造商manufacturer按本文件負(fù)責(zé)給產(chǎn)品做標(biāo)志并確保產(chǎn)品滿足本文件的工廠、公司或社團(tuán)，也可以是制管廠或加工廠。3.22原始卷板mastercoil3.23機(jī)組停車millstop4連續(xù)油管焊縫正常生產(chǎn)過程的中斷點(diǎn)。3.24單根milledlength3.25正火normalize3.26不圓度ovality由2（Dmax—Dmin）/（Dmax+Dmin）計(jì)算得到，可用百分比表示。其中，Dmax和Dmin是油管特定位置實(shí)測最大和最小外徑。3.27產(chǎn)品分析productanalysis對卷板，帶鋼或成品管的化學(xué)分析。3.28基準(zhǔn)端referenceend3.29工作卷筒servicereel圓形帶軸卷筒。通常采用鋼制作，兩邊裝有輪緣，用來放置和運(yùn)輸連續(xù)油管產(chǎn)品。壓管線通過一個(gè)高壓的旋轉(zhuǎn)轉(zhuǎn)環(huán)連接到連續(xù)油管上。卷軸直徑和輪緣直徑隨卷取油管直徑和長度的不同而變化。3.30工作管柱servicestring作業(yè)中特定長度的連續(xù)油管的組合。3.31運(yùn)輸卷筒shippingreel用來運(yùn)輸連續(xù)油管的木制或者金屬制作的形似絞盤的裝置。3.32帶鋼skelp5軋制成的具有規(guī)定尺寸偏差并被縱剪成合適寬度的用于制造連續(xù)油管的扁平鋼帶。3.33公制轉(zhuǎn)換softmetricconversion轉(zhuǎn)換指直接采用數(shù)學(xué)換算將美制度量單位轉(zhuǎn)換成相應(yīng)的公制單位。3.34卷（盤）spool指為儲(chǔ)存或運(yùn)輸而纏繞于工作卷筒或運(yùn)輸卷筒上的一整根“制成態(tài)”的連續(xù)油管。注：一卷連續(xù)油管可以包含一個(gè)或多個(gè)管—管對接焊縫。3.35卷徑比spoolingradiusratio運(yùn)輸卷筒芯軸直徑與連續(xù)油管直徑之比。注：該比率用來確定連續(xù)油管纏繞在卷筒上時(shí)的最小彎曲半徑。3.36標(biāo)定standardization按已知參考值調(diào)整無損檢驗(yàn)設(shè)備。3.37應(yīng)力消除stressrelief3.38管柱string連續(xù)油管工廠內(nèi)生產(chǎn)的最終產(chǎn)品。注：等同于卷（盤。3.39鋼帶strip從原始卷板上切下的單根帶鋼。3.40變截面管柱taperedstring在纏繞油管的長度范圍內(nèi)，外徑恒定和壁厚變化的復(fù)合型連續(xù)油管。例如，變截面管柱可按下述方式獲得：/注：漸變厚度可以出現(xiàn)在初始的帶鋼段中，而后用這些帶鋼段制造管柱。3.416咬邊undercut管—管對焊中咬邊是指焊縫附近管體表面由于熔化造成的壁厚的減薄。注：外表面的咬邊可憑肉眼很好的識別和測量。內(nèi)表面咬邊可采用射線檢驗(yàn)或超聲檢驗(yàn)辨別。3.42壁厚）wallthickness（specified）訂購依據(jù)本文件生產(chǎn)的連續(xù)油管時(shí)，購方應(yīng)在購方協(xié)議中明確下列信息：信息參考文件本文件鋼級表A.1、表A.2屈服強(qiáng)度試驗(yàn)方法管柱長度測量裝置7.2.1管柱長度7.2.2直徑7.3、7.4、表A.5壁厚7.4管端5.6產(chǎn)品分析8.2.2干燥工藝8.4.6通徑球材料8.5.2NDE參考標(biāo)樣9.8.2、拉伸復(fù)驗(yàn)10.2合格證13.2補(bǔ)充要求附錄C運(yùn)輸卷筒附錄D交貨日期和運(yùn)輸說明（。7信息參考化學(xué)成分*6.1硬度*6.2.2沖擊韌性6.2.6變截面管柱長度*7.2.2不圓度7.3.2最小殘余壁厚*管管對焊*7.6、附錄E和附錄F內(nèi)毛刺清除*7.7.5管端接頭*7.8拉伸試樣寬度*8.3.1替代試驗(yàn)壓力*NDE標(biāo)樣9.2鋼帶對接焊縫檢測*9.5.2、9.7管管對接焊縫檢測*9.5.4、9.7替代的像質(zhì)計(jì)（IQIs）*9.6.2NDE參考標(biāo)樣*9.8.2、晶粒尺寸和夾雜9.4標(biāo)記*11SI單位制標(biāo)記11.1外涂層12.1、12.2內(nèi)涂層12.2.3盤卷文件13.3附加要求*附錄C購方檢測附錄G連續(xù)油管的疲勞壽命*9.6和附錄H運(yùn)輸卷筒直徑*附錄D總則本文件連續(xù)油管的鋼級包括CT70、CT80、CT90、CT100、CT110、CT120和CT130，長度不小于61m。8應(yīng)使用高頻電阻焊或者激光焊工藝制造連續(xù)油管。冷拔管應(yīng)進(jìn)行相應(yīng)的熱處理。涉及卷板對接焊和縱向焊縫焊接的工藝不應(yīng)進(jìn)行補(bǔ)焊。可使用高頻電阻焊和激光焊工藝。鋼帶對接焊指通過對焊將相鄰的鋼帶連接到一起。鋼帶對接焊應(yīng)進(jìn)行工藝評定。（見附錄E熱處理總則從5.5.2到5.5.12描述的、超過指定的準(zhǔn)則的缺欠，應(yīng)視為缺陷。摔坑連續(xù)油管不應(yīng)有摔坑。錯(cuò)邊縱向焊縫的錯(cuò)邊不得超過0.3mm（0.010in）和0.05t中較大者。應(yīng)去除焊縫外毛刺，與管外表面齊平。焊縫內(nèi)毛刺不得超過管子內(nèi)壁2.3mm（0.090in）和名義壁厚中較小者。經(jīng)雙方協(xié)議，并在購方協(xié)議中注明，應(yīng)去除內(nèi)毛刺。0（0.0209A.912.7mm（0.5in）所有的裂紋和泄漏應(yīng)視為缺陷。分層分層應(yīng)視為缺陷。任何NDT檢測的信號超過NDT界限的夾雜，均應(yīng)視為缺陷。不允許鋼管對接焊縫上有咬邊。對于所有管子，徑向錯(cuò)邊不應(yīng)超過0.3mm（0.010in）和0.05t中較大者。任何在焊縫兩側(cè)1.6mm（1/16in）內(nèi)，將有效壁厚消減到90%以下的非表面缺欠應(yīng)視為缺陷。任何深度大于10％名義壁厚的缺欠應(yīng)視為缺陷。管端除非另有協(xié)議，連續(xù)油管管端應(yīng)不處理或平端面條件交貨。當(dāng)協(xié)議要求接頭時(shí)，買方應(yīng)指定接頭。對于按照本文件制造的連續(xù)油管，應(yīng)和制造連制管的所用鋼帶的化學(xué)成分相同。除非另有雙方協(xié)商，連續(xù)油管的產(chǎn)品化學(xué)成分應(yīng)滿足表A.1要求?？倓t未經(jīng)購方許可，不應(yīng)使用用高鋼級連續(xù)油管替代低鋼級連續(xù)油管。A.210延伸率連續(xù)油管的延伸率是指在拉伸試驗(yàn)中，50.8mm（2in）定標(biāo)距的百分延伸率δ。對于每一種規(guī)格的連續(xù)油管，延伸率的最小值由式（1）確定：式中：

0.2A1944U0.9A

（1）δ50.8mm10%0.5%A（210mm2，A490mm2UPa。各種規(guī)格和尺寸拉伸試樣的延伸率最低要求見表A.3。這些值是基于名義的外徑和壁厚的。屈服強(qiáng)度，應(yīng)在制造過程盤卷前狀態(tài)進(jìn)行檢測，并由雙方協(xié)定選擇合理的試驗(yàn)方法（0.20.5除非另有協(xié)定，復(fù)驗(yàn)可在盤卷前也可在盤卷后進(jìn)行。注：由于包辛格效應(yīng)的存在，盤卷和展開會(huì)使得屈服強(qiáng)度降低5%~10%。硬度（8.7.38.9.5的要求。硬度應(yīng)符合表A.2鋼帶—端部焊縫和管—管焊縫的表面宏觀硬度也應(yīng)測量，測量結(jié)果應(yīng)符合表A.2的要求。當(dāng)購方協(xié)議指定時(shí)，按協(xié)議額外的宏觀或顯微硬度試驗(yàn)應(yīng)采取在指定部位進(jìn)行。各部位晶粒尺寸應(yīng)為ASTM晶粒度8級或更細(xì)。各部位A類、B類、C類和D類非金屬夾雜分別不超過1.5，總和不超過4.5。壓扁壓扁試驗(yàn)結(jié)果應(yīng)符合表A.4規(guī)定。壓扁試驗(yàn)的驗(yàn)收標(biāo)準(zhǔn)是在板間距離達(dá)到表A.4規(guī)定之前，焊縫或母材外表面不允許有超過3.2mm（0.125in）的裂紋或裂縫出現(xiàn)。裂紋的起源在試樣邊緣并且長度小于6.4mm（0.25in）的不應(yīng)作為拒絕理由。對連續(xù)油管單根的最小試驗(yàn)頻數(shù)是每一個(gè)連制管的端部進(jìn)行一次。擴(kuò)口所有鋼級的連續(xù)油管應(yīng)按8.3.3進(jìn)行擴(kuò)口試驗(yàn)。驗(yàn)收準(zhǔn)則是擴(kuò)口后不得有可見裂紋。V11ASTMA3703/41/2220b（15b430b（20b0.55（1/2。由于幾何尺寸限制，不能進(jìn)行上述實(shí)驗(yàn)時(shí)，雙方應(yīng)協(xié)商選用替代試驗(yàn)并嚴(yán)格控制壓扁和擴(kuò)口試驗(yàn)。單根的兩端均應(yīng)進(jìn)行焊縫的橫截面的金相檢驗(yàn)。總則連續(xù)油管應(yīng)符合表A.5或表A.6規(guī)定的大小、壁厚和質(zhì)量。該油管最小和最大長度應(yīng)符合購買協(xié)議。長度測量裝置的精度應(yīng)不大于1％。直徑外徑外徑在盤卷?xiàng)l件下應(yīng)符合表A.7公差要求。不圓度按雙方協(xié)議，不圓度應(yīng)在管端的45.7m（150ft）內(nèi)測量，測量裝置是安裝于卷軸上。壁厚相鄰鋼帶間的壁厚變化（Δt）不應(yīng)超過如下要求：2.8（0.10nt0（0.008；0.3（0.01n；3.8（0.1和5（020Δt0.5（0.020n；12d5.2（0.205nt08（0.031?？倓tA.8雙方應(yīng)協(xié)定缺欠去除位置的剩余壁厚，并在購方協(xié)議中注明。單位長度質(zhì)量按式（2）進(jìn)行計(jì)算：式中：

Wpe=（2）pe——0.0kg（0.1b；D（（n；（（n；0.2461S）或者1069SCE。試驗(yàn)所有檢驗(yàn)和試驗(yàn)設(shè)備應(yīng)根據(jù)制造商的書面程序進(jìn)行維護(hù)、校準(zhǔn)和重新校準(zhǔn)。其爐分析制造商應(yīng)報(bào)告爐分析結(jié)果，爐分析代表了根據(jù)本文件生產(chǎn)的連續(xù)油管的該爐鋼。按購方協(xié)議規(guī)定，按本文件生產(chǎn)的管子應(yīng)該進(jìn)行產(chǎn)品分析。產(chǎn)品分析可代表所在爐鋼。1390°。試驗(yàn)的方法和做法應(yīng)按ASTMA751執(zhí)行。標(biāo)定應(yīng)有可追溯性。見圖1見圖2和圖3拉伸試驗(yàn)的頻數(shù)如下：圖1全截面拉伸試樣圖2條狀拉伸試樣圖3條狀拉伸試樣的取向位置14ASTMA370ASTME412應(yīng)按ASTME83每12個(gè)月校準(zhǔn)一次。0°90°總則擴(kuò)口試驗(yàn)位置如下：ASTMA45001.6（460。擴(kuò)口沒裂的小徑（IDf）按下計(jì)：不于CT90鋼的 IDf=1.25×IDCT100級CT110 IDf=1.21×IDCT120鋼級的IDf=1.15×ID其中Df（nD（（n。硬度試驗(yàn)按9.3執(zhí)行。顯微硬度試驗(yàn)應(yīng)依據(jù)ASTME384。典型的硬度測試位置見圖4。換算依據(jù)ATME10進(jìn)行。當(dāng)硬度低于R20BHBHRBHRC。在每個(gè)連制管的開始、結(jié)束和任何工廠停止點(diǎn)應(yīng)取樣進(jìn)行硬度檢測。硬度計(jì)的標(biāo)定應(yīng)按如下程序（對CT130選擇35~40HRC硬度標(biāo)塊；對CT120和選擇30~35HRCCT10025~20HRCCT9025~20HRC塊）a）應(yīng)取距離應(yīng)用面1.00mm到2.5mm（0.040in到0.100in）之間的顯微壓痕；15b）41423；e）3對每個(gè)試樣，第一個(gè)壓痕不應(yīng)采納。HRCHRB（0.5洛氏硬度點(diǎn)。圖4全截面硬度測試壓痕位置斷裂韌性試驗(yàn)應(yīng)按6.2.6執(zhí)行。總則8.4.28.4.3執(zhí)行。連續(xù)油管柱應(yīng)可至少承受8.4.4規(guī)定的壓力而不泄漏。靜水壓試驗(yàn)前應(yīng)排放掉管內(nèi)的氣體。達(dá)到表A.5和表A.615n15n1.4a水壓試驗(yàn)時(shí)應(yīng)有全量程精度±0.5%的壓力測量儀器和壓力記錄系統(tǒng)。25%75%

00ps壓力測量裝置應(yīng)進(jìn)行校準(zhǔn)，校準(zhǔn)時(shí)應(yīng)采用自重測試儀，校準(zhǔn)周期6個(gè)月。校準(zhǔn)記錄保存按11.2執(zhí)16行。在制造商的設(shè)施內(nèi)，應(yīng)可得到為檢測用的試驗(yàn)記錄和表格。A.5和表A.6A.5A.6式中：

P=1.6YS×tmin/DPP（ps；Y（（Paps；ti（（（n；D（（n。0.1P表.610s（表A.503.4P（15000ps。變壁厚管柱的試驗(yàn)壓力應(yīng)以管柱內(nèi)最小名義壁厚處的規(guī)定壓力進(jìn)行。應(yīng)將靜水壓試驗(yàn)用液體進(jìn)行防銹處理，限定其pH為7.0和9.0，可在其中添加緩蝕劑。通徑試驗(yàn)總則除非另有協(xié)定，每個(gè)管柱應(yīng)進(jìn)行通徑試驗(yàn)，通徑球應(yīng)按表A.10規(guī)定執(zhí)行。通徑球應(yīng)順暢通過整個(gè)管柱，無障礙。通徑球材料除非另有協(xié)定并在購方協(xié)議中注明，通徑（球）應(yīng)使用尼龍或者鋼制造。對變截面管柱的通徑試驗(yàn)，通徑球的尺寸按管柱內(nèi)最小內(nèi)徑確定。17按購方協(xié)議，晶粒尺寸按ASTME112的要求，在產(chǎn)品管上，用金相的方法進(jìn)行評定。非金屬夾雜等級按ISO4967評級。V按購方協(xié)議，如果外徑和壁厚允許的話，應(yīng)按ASTM370和ASTME23（見6.2.6）進(jìn)行夏比V缺口沖擊試驗(yàn)。按購方協(xié)議，可參照附錄H在內(nèi)壓10MPa下分別進(jìn)行，曲率半徑1219.2mm（48in）和1828.8mm（72in）進(jìn)行，進(jìn)行連續(xù)油管的疲勞壽命檢測試驗(yàn)。6總則本章規(guī)定了在線無損檢測。水壓試驗(yàn)后補(bǔ)充進(jìn)行的無損檢測見附錄C。似材料的一段樣品上進(jìn)行，以確認(rèn)這段試樣或者在線材料上的本證或者人工缺陷。這些缺陷應(yīng)符合9.7.9..AA.2或者表A.3和附錄（R3附錄G人員應(yīng)當(dāng)具備GB/T9445ASNT或者等效資質(zhì)。如果NDT12個(gè)月的期間沒有進(jìn)行NDTNDTI級、IIIIIIIIIIIIIIII（9.5.1）ASTM（：a）磁漏） ASTMb）磁渦） ASTM18b）聲測 ASTME164ASTMd）聲焊） ASTME273粉測 ASTME709射檢測 ASTME94透測 ASTME165GB/T9445ASNT9.6。9.8.1~9.8.4（100%）經(jīng)雙方協(xié)議，并在購方協(xié)議上協(xié)定，管子應(yīng)按照SR37（見附錄C）進(jìn)行無損檢測。X總則ATM（Q（見表A1TM（見SO102、表A12和表A.1ISOISO絲型像質(zhì)計(jì)應(yīng)按照壁厚根據(jù)ISO1027A.12和表A.136/1210/1619（ASTMATM像質(zhì)計(jì)應(yīng)按照相應(yīng)的壁厚依據(jù)表A1SME747依據(jù)STME025每個(gè)鋼帶—端部焊縫和管—管對接焊縫均應(yīng)使用像質(zhì)計(jì)，以便于檢查射線檢測的靈敏度。在整個(gè)調(diào)整射線檢測靈敏度的過程應(yīng)當(dāng)將鋼帶或者管子固定在一個(gè)靜止的位置。下列特征清晰可見時(shí)，即獲得了正確定義和靈敏度：ISOASTM2T的孔。射線檢測應(yīng)有能力檢測9.6.5描述的焊接缺欠和缺陷。裂紋、孔洞、未焊透和未熔合是射線檢測應(yīng)考慮的缺陷種類。不應(yīng)有缺欠或者缺陷。射線檢測中發(fā)現(xiàn)焊接缺陷應(yīng)拒絕。含缺陷管子的處置應(yīng)依據(jù)9.10。所有焊縫不應(yīng)有平面型缺陷。一經(jīng)發(fā)現(xiàn)，裂紋或者其他任何形式的平面型缺陷，應(yīng)予以拒絕。ASTME164510壁厚[0.38mm（0.015in）]0.38mm（0.015in）0.51mm（0.020in）之間，長度6.（0.25n或12.7（0.500n6.4mm（0.25in）總則參考標(biāo)樣的最低要求如下：205規(guī)圖5無損檢測參考指示計(jì)參考刻槽和孔的最低要求如下：a）刻槽之間應(yīng)分離且有足夠的間距以保證可以產(chǎn)生兩個(gè)獨(dú)立的可以清晰可分的信號；b）刻槽可以在或者近鄰縫焊、或者平行于縫焊；c）縱向刻槽應(yīng)有如下尺寸：深度10％的名義壁厚[不小于0.38mm（0.015in）]，最大寬度0.5mm（0.0n12.（0.500n101.6mm（1/16in）0.8mm（1/32in）應(yīng)當(dāng)保存檢測系統(tǒng)的記錄，將9.8.2所述的、驗(yàn)證系統(tǒng)檢測能力的參考指示計(jì)的檢測記錄歸檔。這些記錄包括標(biāo)準(zhǔn)化、操作工藝、裝備、個(gè)人資質(zhì)、裝備檢測設(shè)置和動(dòng)態(tài)測試數(shù)據(jù)。A.14A.147.7不管通過何種方式在縱向焊發(fā)現(xiàn)的缺陷不應(yīng)修復(fù)。21對管端和證明了是在焊縫或管體外表面的缺欠，制造商應(yīng)優(yōu)先選擇磁粉或者滲透檢測。ASTME709用于液體滲透檢測的裝備同樣也可檢測出這些缺欠。滲透檢測應(yīng)按ASTME165執(zhí)行。含一個(gè)或多個(gè)缺陷的管子和焊縫應(yīng)進(jìn)行以下處置：）（9c）對鋼帶—端部焊接和管—管焊，若發(fā)現(xiàn)缺陷，應(yīng)切除焊縫和整個(gè)熱影響區(qū)。0（40目或者00目，9復(fù)驗(yàn)（15.2m（50ft）范圍內(nèi)，再復(fù)取另外兩個(gè)樣品。該單根為了復(fù)取樣品的切出部分應(yīng)被丟棄。如果一個(gè)或22除非另有協(xié)定，復(fù)驗(yàn)可在盤卷前也可在成卷的產(chǎn)品上取樣。0°90°端部15.2m（50ft）CT9022.0HRC（不超過22.0HRC22.0HRCCT10028.0HRC（不超過28.0HRC28.0HRCCT11030.0HRC（不超過30.0HRC30.0HRCCT12034.0HRC（不超過34.0HRC34.0HRCCT13039.0HRC（不超過39.0HRC39.0HRC23（見62.6端部15.2m（50ft）標(biāo)志總則按本文件制造的連續(xù)油管應(yīng)由制造商按下述規(guī)定在連續(xù)油管管卷上作標(biāo)志。遵循相關(guān)標(biāo)準(zhǔn)和符合規(guī)定的附加標(biāo)志是允許的，標(biāo)志可按制造商的意愿或按購方要求進(jìn)行。具體的標(biāo)志順序如下：制造商的名稱或標(biāo)志應(yīng)標(biāo)志在最前面，后面緊跟制造商代號?！癝Y/T。c）當(dāng)產(chǎn)品符合其它多個(gè)標(biāo)準(zhǔn)時(shí)可以標(biāo)志每一個(gè)標(biāo)準(zhǔn)名稱。連續(xù)油管外徑應(yīng)標(biāo)志。連續(xù)油管的鋼級代號按如下標(biāo)志：鋼級代號CT70鋼級CT70CT80鋼級CT80CT90鋼級CT90CT100鋼級CT100CT110鋼級CT110CT120鋼級CT120CT130鋼級CT130應(yīng)標(biāo)志實(shí)際的靜水壓試驗(yàn)壓力，加前綴“TESTED”。當(dāng)進(jìn)行附錄C（SR37）規(guī)定的無損檢測時(shí)，應(yīng)在其后追加：NDESR37。24長度對所有規(guī)格的連續(xù)油管，其最終測量長度應(yīng)噴涂在連續(xù)油管盤卷外表面。涂層作。注：除非另有規(guī)定，運(yùn)輸過程中裸管端一般應(yīng)進(jìn)行涂層保護(hù)。外表面未進(jìn)行防腐涂層的連續(xù)油管應(yīng)采取如下的一項(xiàng)保護(hù)措施，以免與液體環(huán)境發(fā)生接觸：文件總則合格證25對供應(yīng)給用戶的每個(gè)成品盤卷，制造商至少應(yīng)保存如下信息。當(dāng)購貨合同有規(guī)定時(shí)，下面的從a）~l）的任何一項(xiàng)內(nèi)容都應(yīng)提供給用戶。a）制造商的質(zhì)量證明書應(yīng)說明連續(xù)油管生產(chǎn)依據(jù)的標(biāo)準(zhǔn)名稱和版本號、生效日期；b）名義外徑、壁厚和鋼級；8.2）（；e）g（（；l）A.1526附錄A（規(guī)范性附錄）表表A.1化學(xué)成分要求（質(zhì)量百分?jǐn)?shù)）鋼級CmaxMnmaxPmaxSmaxSimaxCT70250.0050.50CT80200.0050.50CT90200.0050.50CT1000.161.650.0250.0050.50CT1100.161.650.0250.0050.50CT1200.161.650.0200.0050.50CT1300.161.650.0200.0050.50表A.2拉伸要求鋼級屈服強(qiáng)度min屈服強(qiáng)度max抗拉強(qiáng)度min最大硬度HRCMPapsiMPapsiMPapsi管體和焊縫CT7048370000552800005528000022CT8055280000620900006078800022CT90620900006891000006699700022CT100689100000--75810800028CT110758110000--79311500030CT120827120000--86212500036CT130896130000--9311350003927表A.3伸長率(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)代號橫截面面積A2.00in標(biāo)距內(nèi)最小伸長率（%）規(guī)格壁厚連續(xù)油管鋼級inmmin2mm2CT70CT80CT90CT100CT110CT120CT1300.7500.0802.00.1684108.617.015.514.013.012.011.510.50.7500.0832.10.1739112.217.015.514.513.012.511.510.50.7500.0872.20.1812116.917.016.014.513.012.511.510.50.7500.0952.40.1955126.117.516.014.513.512.511.511.00.7500.1022.60.2076134.017.516.015.013.512.512.011.01.0000.0751.90.2179140.618.016.515.013.513.012.011.01.0000.0802.00.2312149.218.016.515.014.013.012.011.51.0000.0832.10.2391154.318.016.515.514.013.012.011.51.0000.0872.20.2495161.018.817.015.514.013.012.011.51.0000.0952.40.2701174.318.517.015.514.013.512.511.51.0000.1022.60.2878185.619.017.516.014.513.512.512.01.0000.1092.80.3051196.819.017.516.014.513.513.012.01.0000.1183.00.3270210.919.517.516.014.514.013.012.01.0000.1253.20.3436221.719.518.016.515.014.013.012.01.0000.1343.40.3646235.219.518.016.515.014.013.012.51.2500.0751.90.2769178.618.517.015.514.513.512.511.51.2500.0802.00.2941189.719.017.516.014.513.512.512.01.2500.0872.20.3179205.119.017.516.014.514.013.012.01.2500.0952.40.3447222.419.518.016.515.014.013.012.01.2500.1022.60.3679237.320.018.016.515.014.513.012.51.2500.1092.80.3907252.120.018.517.015.514.513.512.51.2500.1183.00.4196270.720.518.517.015.514.513.512.51.2500.1253.20.4418285.020.519.017.515.515.013.513.01.2500.1343.40.4698303.121.019.017.516.015.014.013.01.2500.1453.70.5034324.721.019.517.516.015.014.013.01.2500.1564.00.5362345.921.519.518.016.515.514.513.51.2500.1754.40.5910381.321.520.018.516.515.514.513.51.5000.0872.20.3862249.220.018.517.015.014.513.512.51.5000.0952.40.4193270.520.518.517.015.514.513.512.528表A.3（續(xù)）(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)代號橫截面面積A2.00in標(biāo)距內(nèi)最小伸長率（%）規(guī)格壁厚連續(xù)油管鋼級inmmin2mm2CT70CT80CT90CT100CT110CT120CT1301.5000.1022.60.4480289.020.519.017.515.515.014.013.01.5000.1092.80.4763307.321.019.017.516.015.014.013.01.5000.1183.00.5123330.521.019.518.016.015.014.013.01.5000.1253.20.5400348.421.519.518.016.515.514.513.51.5000.1343.20.5751371.021.520.018.016.515.514.513.51.5000.1453.40.6172398.222.020.018.516.516.014.513.51.5000.1564.00.6587425.022.020.518.517.016.015.014.01.5000.1754.40.7285470.022.521.019.017.516.515.014.01.5000.1884.80.7749499.923.021.019.517.516.515.514.51.5000.2045.20.8306535.923.521.018.518.017.015.514.51.7500.0952.40.4939318.721.019.517.516.015.014.013.01.7500.1022.60.5281340.721.519.518.016.015.514.013.51.7500.1092.80.5619362.521.520.018.016.515.514.513.51.7500.1183.00.6050390.322.020.018.516.516.014.513.51.7500.1253.20.6381411.722.020.518.517.016.015.014.01.7500.1343.40.6803438.922.520.519.017.016.015.014.01.7500.1453.70.7311471.722.521.019.017.516.515.014.01.7500.1564.00.7812504.023.021.019.517.516.515.514.51.7500.1754.40.8659558.623.521.519.518.017.015.514.51.7500.1884.80.9225595.224.022.020.018.017.016.015.01.7500.2045.20.9908639.224.022.020.518.517.516.015.01.7500.2245.71.0739692.824.522.520.518.517.516.515.51.7500.2506.41.1781760.125.023.021.019.018.016.515.52.0000.1092.80.6475417.822.020.518.517.016.015.014.02.0000.1183.00.6977450.122.520.519.017.016.015.014.02.0000.1253.20.7363475.022.521.019.017.516.515.014.02.0000.1343.40.7855506.823.021.019.517.516.515.514.52.0000.1453.70.8450545.223.521.519.518.017.015.514.52.0000.1564.00.9037583.023.521.520.018.017.016.015.02.0000.1754.41.0033647.324.022.020.518.517.516.015.02.0000.1884.81.0702690.524.522.520.518.517.516.515.52.0000.2045.21.1510742.625.023.021.019.018.016.515.529表A.3（續(xù)）(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)代號橫截面面積A2.00in標(biāo)距內(nèi)最小伸長率（%）規(guī)格壁厚連續(xù)油管鋼級inmmin2mm2CT70CT80CT90CT100CT110CT120CT1302.0000.2245.71.2498806.325.523.021.519.518.017.016.02.0000.2506.41.3745886.725.523.521.519.518.517.016.02.0000.2767.01.4948964.426.024.022.020.019.017.516.52.0000.2817.11.5175979.026.524.022.020.019.017.516.523/80.1092.80.7760500.623.021.019.517.516.515.514.523/80.1183.00.8367539.823.521.519.518.017.015.514.523/80.1253.20.8836570.023.521.520.018.017.016.014.523/80.1343.40.9434608.624.022.020.018.017.016.015.023/80.1453.71.0158655.424.022.020.518.517.516.015.023/80.1564.01.0875701.624.522.520.518.517.516.515.523/80.1754.41.2095780.325.023.021.019.018.017.015.523/80.1884.81.2917833.325.523.521.519.518.517.016.023/80.2045.21.3914897.726.023.521.519.518.517.516.023/80.2245.71.5137976.626.024.022.020.019.017.516.523/80.2506.41.66901076.826.524.522.520.519.518.016.523/80.2767.01.82001174.227.025.023.021.019.518.017.023/80.2817.11.84861192.627.525.023.021.019.518.517.023/80.3007.61.95561261.727.525.523.021.020.018.517.525/80.1453.71.1297728.825.022.521.019.018.016.515.525/80.1564.01.2100780.725.023.021.019.018.017.015.525/80.1754.41.3470869.025.523.521.519.518.517.016.025/80.1884.81.4393928.626.024.022.020.018.517.516.025/80.2045.21.55161001.026.524.022.020.019.017.516.525/80.2245.71.68961090.127.024.522.520.519.518.017.025/80.2506.41.86531203.427.525.023.021.019.518.517.025/80.2767.02.03681314.028.025.523.521.520.018.517.525/80.2817.12.06931335.028.025.523.521.520.018.517.525/80.3007.62.19131413.728.526.024.021.520.519.017.527/80.1343.41.1539744.425.023.021.019.018.016.515.527/80.1453.71.2436802.325.023.021.019.518.017.016.027/80.1564.01.3326859.725.823.521.519.518.517.016.030表A.3（續(xù)）(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)代號橫截面面積A2.00in標(biāo)距內(nèi)最小伸長率（%）規(guī)格壁厚連續(xù)油管鋼級inmmin2mm2CT70CT80CT90CT100CT110CT120CT13027/80.1754.41.4844957.726.024.022.020.019.017.516.527/80.1884.81.58701023.926.524.522.520.019.017.516.527/80.2045.21.71181104.427.024.522.520.519.518.017.027/80.2245.71.86561203.627.525.023.021.019.518.517.027/80.2506.42.06171330.128.025.523.521.520.018.517.527/80.2767.02.25351453.928.526.024.021.520.519.017.527/80.2817.12.29001477.428.526.024.022.020.519.018.027/80.3007.62.42691565.729.026.524.522.021.019.518.031/40.1453.71.4144912.526.024.022.020.018.517.516.031/40.1564.01.5163978.326.524.022.020.019.017.516.531/40.1754.41.69061090.727.024.522.520.519.518.017.031/40.1884.81.80851166.827.025.023.021.019.518.017.031/40.2045.21.95211259.427.525.523.021.020.018.517.031/40.2245.72.12951373.828.026.023.521.520.519.017.531/40.2506.42.35621520.128.526.524.022.020.519.018.031/40.2767.02.57871663.729.027.024.522.521.019.518.031/40.2817.12.62101691.029.527.024.522.521.019.518.531/40.3007.62.78031793.729.527.025.022.521.520.018.531/20.1564.01.63891057.326.524.522.520.519.018.016.531/20.1754.41.82801179.427.525.023.021.019.518.017.031/20.1884.81.95611262.027.525.523.021.020.018.517.531/20.2045.22.11241362.828.026.023.521.520.019.017.531/20.2245.72.30541487.328.526.024.022.020.519.018.031/20.2506.42.55261646.829.026.524.522.021.019.518.031/20.2767.02.79551803.529.527.025.022.521.520.018.531/20.2817.12.84171833.430.027.525.022.521.520.018.531/20.3007.63.01591945.830.027.525.523.021.520.019.0注：表中數(shù)值是基于2.00in（50.8mm）標(biāo)距長度內(nèi)的伸長率計(jì)算值。31表A.4壓扁要求鋼級D/ta板間最大間距（mmin）CT707-23D(1.074–0.0194D/t)CT80b7-23D(1.074–0.0194D/t)CT90b7-23D(1.080–0.0178D/t)CT100b7-23D(1.080–0.0178D/t)CT110b,c所有D(1.086–0.0163D/t)CT120b,d所有D(1.092–0.0140D/t)CT130b,d所有D(1.092–0.0140D/t)aD——連續(xù)油管名義外徑。t——連續(xù)油管名義壁厚。b0°180°90°270°0°180°失效不作為拒收的依據(jù)。c壓扁應(yīng)至少為0.85D。d.壓扁應(yīng)至少為0.90D。32表A.5連續(xù)油管尺寸、單位長度質(zhì)量和靜水壓試驗(yàn)壓力（美國慣用單位制）

(1)(2)(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)代號外徑Din壁厚單位長度質(zhì)量wpelb/ftD/t比計(jì)算內(nèi)徑din最小試驗(yàn)壓力psig規(guī)定tin最小tminin規(guī)格壁厚CT70CT80CT90CT100CT110CT120CT1300.7500.0800.7500.0800.0750.579.3750.590112001280014400150001500015000150000.7500.0830.7500.0830.0780.599.0360.584116001330015000150001500015000150000.7500.0870.7500.0870.0820.628.6210.576122001400015000150001500015000150000.7500.0950.7500.0950.0900.677.8950.560134001500015000150001500015000150000.7500.1020.7500.1020.0970.717.3530.546145001500015000150001500015000150001.0000.0751.0000.0750.0700.7413.3330.8507800900010100112001230013400146001.0000.0801.0000.0800.0750.7912.5000.8408400960010800120001320014400150001.0000.0831.0000.0830.0780.8112.0480.83487001000011200125001370015000150001.0000.0871.0000.0870.0820.8511.4940.82692001050011800131001440015000150001.0000.0951.0000.0950.0900.9210.5260.810101001150013000144001500015000150001.0000.1021.0000.1020.0970.989.8040.796109001240014000150001500015000150001.0000.1091.0000.1090.1041.049.1740.782116001330015000150001500015000150001.0000.1181.0000.1180.1101.118.4750.764123001410015000150001500015000150001.0000.1251.0000.1250.1171.178.0000.750131001500015000150001500015000150001.0000.1341.0000.1340.1261.247.4630.732141001500015000150001500015000150001.2500.0751.2500.0750.0700.9416.6671.100630072008100900099001080011600表A.5（續(xù)）(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)代號外徑Din壁厚單位長度質(zhì)量wpelb/ftD/t比計(jì)算內(nèi)徑din最小試驗(yàn)壓力Psig規(guī)定tin最小tminin規(guī)格壁厚CT70CT80CT90CT100CT110CT120CT1301.2500.0801.2500.0800.0751.0015.6251.09067007700860096001060011500125001.2500.0871.2500.0870.0821.0814.3681.076730084009400105001150012600136001.2500.0951.2500.0950.0901.1713.1581.0608100920010400115001270013800150001.2500.1021.2500.1020.0971.2512.2551.0468700990011200124001370014900150001.2500.1091.2500.1090.1041.3311.4681.03293001060012000133001460015000150001.2500.1181.2500.1180.1101.4310.5931.01499001130012700141001500015000150001.2500.1251.2500.1250.1171.5010.0001.000105001200013500150001500015000150001.2500.1341.2500.1340.1261.609.3280.982113001290014500150001500015000150001.2500.1451.2500.1450.1371.718.6210.960123001400015000150001500015000150001.2500.1561.2500.1560.1481.828.0130.938133001500015000150001500015000150001.2500.1751.2500.1750.1672.017.1430.900150001500015000150001500015000150001.5000.0871.5000.0870.0821.3117.2411.3266100700079008700960010500114001.5000.0951.5000.0950.0901.4315.7891.31067007700860096001060011500125001.5000.1021.5000.1020.0971.5214.7061.296720083009300103001140012400135001.5000.1091.5000.1090.1041.6213.7611.2827800890010000111001220013300144001.5000.1181.5000.1180.1101.7412.7121.2648200940010600117001290014100150001.5000.1251.5000.1250.1171.8412.0001.2508700100001120012500137001500015000341.5000.1341.5000.1340.1261.9611.1941.23294001080012100134001480015000150001.5000.1451.5000.1450.1372.1010.3451.210102001170013200146001500015000150001.5000.1561.5000.1560.1482.249.6151.188111001260014200150001500015000150001.5000.1751.5000.1750.1672.488.5711.150125001430015000150001500015000150001.5000.1881.5000.1880.1802.647.9791.124134001500015000150001500015000150001.5000.2041.5000.2040.1962.837.3531.092146001500015000150001500015000150001.7500.0951.7500.0950.0901.6818.4211.560580066007400820091009900107001.7500.1021.7500.1020.0971.8017.1571.5466200710080008900980010600115001.7500.1091.7500.1090.1041.9116.0551.53267007600860095001050011400124001.7500.1181.7500.1180.1102.0614.8311.514700080009100101001110012100131001.7500.1251.7500.1250.1172.1714.0001.50075008600960010700118001280013001.7500.1341.7500.1340.1262.3113.0601.482810092001040011500127001380015000表A.5（續(xù)）(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)代號外徑Din壁厚單位長度質(zhì)量wpelb/ftD/t比計(jì)算內(nèi)徑din最小試驗(yàn)壓力psig規(guī)定tin最小tminin規(guī)格壁厚CT70CT80CT90CT100CT110CT120CT1301.7500.1451.7500.1450.1372.4912.0691.46088001000011300125001380015000150001.7500.1561.7500.1560.1482.6611.2181.43895001080012200135001490015000150001.7500.1751.7500.1750.1672.9510.0001.400107001220013700150001500015000150001.7500.1881.7500.1880.1803.149.3091.374115001320014800150001500015000150001.7500.2041.7500.2040.1963.378.5781.34212500143001500015000150001500015000351.7500.2241.7500.2240.2163.657.8131.302138001500015000150001500015000150001.7500.2501.7500.2500.2424.017.0001.250150001500015000150001500015000150002.0000.1092.0000.1090.1042.2018.3491.7825800670075008300920010000108002.0000.1182.0000.1180.1102.3716.9491.7646200700079008800970010600114002.0000.1252.0000.1250.1172.5116.0001.75066007500840094001030011200122002.0000.1342.0000.1340.1262.6714.9251.732710081009100101001110012100131002.0000.1452.0000.1450.1372.8813.7931.710770088009900110001210013200142002.0000.1562.0000.1560.1483.0812.8211.6888300950010700118001300015000150002.0000.1752.0000.1750.1673.4111.4291.65094001070012000134001470015000150002.0000.1882.0000.1880.1763.6410.6381.62499001130012700141001500015000150002.0000.2042.0000.2040.1923.929.8041.592108001230013800150001500015000150002.0000.2242.0000.2240.2124.258.9291.552119001360015000150001500015000150002.0000.2502.0000.2500.2384.688.0001.500133001500015000150001500015000150002.0000.2762.0000.2760.2615.097.2461.448146001500015000150001500015000150002.0000.2812.0000.2810.2665.167.1171.4381490015000150001500015000150001500023/80.1092.3750.1090.1042.6421.7892.157490056006300700077008400910023/80.1182.3750.1180.1102.8520.1272.139520059006700740082008900960023/80.1252.3750.1250.1173.0119.0002.1255500630071007900870095001020023/80.1342.3750.1340.1263.2117.7242.10759006800760085009300102001100023/80.1452.3750.1450.1373.4616.3792.085650074008300920010200111001200023/80.1562.3750.1560.1483.7015.2242.0637000800090001000011000120001300023/80.1752.3750.1750.1674.1213.5712.0257900900010100113001240013500146003623/80.1882.3750.1880.1764.4012.6331.99983009500107001190013000142001500023/80.2042.3750.2040.1924.7311.6421.9679100103001160012900142001500015000表A.5（續(xù)）(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)代號外徑Din壁厚單位長度質(zhì)量wpelb/ftD/t比計(jì)算內(nèi)徑din最小試驗(yàn)壓力psig規(guī)定tin最小tminin規(guī)格壁厚CT70CT80CT90CT100CT110CT120CT13023/80.2242.3750.2240.2125.1510.6031.9271000011400129001430015000150001500023/80.2502.3750.2500.2385.689.5001.8751120012800144001500015000150001500023/80.2762.3750.2760.2616.198.6051.8231230014100150001500015000150001500023/80.2812.3750.2810.2666.298.4521.8131250014300150001500015000150001500023/80.3002.3750.3000.2856.657.9171.7751340015000150001500015000150001500025/80.1452.6250.1450.1373.8418.1032.33558006700750084009200100001090025/80.1562.6250.1560.1484.1216.8272.31363007200810090009900108001170025/80.1752.6250.1750.1674.5815.0002.2757100810092001020011200122001320025/80.1882.6250.1880.1764.9013.9632.2497500860097001070011800129001390025/80.2042.6250.2040.1925.2812.8682.21782009400105001170012900140001500025/80.2242.6250.2240.2125.7511.7192.177900010300116001290014200150001500025/80.2502.6250.2500.2386.3510.5002.1251020011600131001450015000150001500025/80.2762.6250.2760.2616.939.5112.0731110012700143001500015000150001500025/80.2812.6250.2810.2667.049.3422.0631130013000146001500015000150001500025/80.3002.6250.3000.2857.468.7502.025122001390015000150001500015000150003727/80.1342.8750.1340.1263.9321.4552.607490056006300700077008400910027/80.1452.8750.1450.1374.2319.8282.585530061006900760084009100990027/80.1562.8750.1560.1484.5318.4292.5635800660074008200910099001070027/80.1752.8750.1750.1675.0516.4292.525650074008400930010200112001210027/80.1882.8750.1880.1765.4015.2932.499690078008800980010800118001280027/80.2042.8750.2040.1925.8214.0932.467750085009600107001180