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ASTM A1005 - A 1005M - 00e1.pdf

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ASTM A1005 - A 1005M - 00e1.pdf

Designation A 1005/A 1005M – 00e1Standard Specification forSteel Line Pipe, Black, Plain End, Longitudinal and HelicalSeam, Double Submerged-Arc Welded1This standard is issued under the fixed designation A 1005/A 1005M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval.e1NOTEEditorial corrections were applied throughout August 2000.1. Scope1.1 This specification covers double submerged-arc welded,black, plain end steel pipe for use in the conveyance of fluidsunder pressure. Pipe in sizes NPS 16 and larger, as given inASME B36.10, are included; pipe having other dimensions, inthis size range, are permitted, provided such pipe complieswith all other requirements of this specification.1.2 It is intended that pipe be capable of being welded in thefield when welding procedures in accordance with the require-ments of the applicable pipeline construction code are used.1.3 The values stated in either inch-pound units or in SIunits are to be regarded separately as standard. The values ineach system are not exact equivalents, therefore, each system isto be used independently of the other, without combiningvalues in any way.1.4 The following precautionary statement pertains to thetest method portion, Section 14 of this specification Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM StandardsA 370 Test Methods and Definitions for Mechanical Testingof Steel Products2A 450/A 450M Specification for General Requirements forCarbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes2A 530/A 530M Specification for General Requirements forSpecialized Carbon and Alloy Steel Pipe2A 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel Products3A 941 Terminology Relating to Steel, Stainless Steel, Re-lated Alloys, and Ferroalloys22.2 ASME StandardsASME B36.10 Welded and Seamless Wrought Steel Pipe4ASME Boiler and Pressure Vessel Code, Section VIII,Unfired Pressure Vessels4ASME Boiler and Pressure Vessel Code, Section IX, Weld-ing and Brazing Qualifications42.3 API PublicationsAPI RP 5L3 Recommended Practice for Conducting Drop-Weight Tear Tests on Line Pipe5API Standard 1104 Welding of Pipelines and Related Fa-cilities53. Terminology3.1 Definitions of Terms Specific to This Standard3.1.1 double submerged-arc welding, na welding processthat produces coalescence of metals by heating them with anarc of arcs between a bare metal electrode or electrodes and thework pieces, using at least one pass from the inside and at leastone pass from the outside to make the longitudinal, helical, andskelp end weld seams, whichever are applicable, the arc or arcsand the molten metal are shielded by a blanket of granular,fusible material on the work pieces.3.1.2 jointer, nnot more than three lengths of pipe cir-cumferentially welded together to produce a single length thatcomplies with the length provisions of this specification.3.1.3 skelp, nthe flat rolled product intended to be formedinto pipe.3.1.4 skelp end, nthe weld joining the ends of two lengthsof skelp.3.1.5 specified outside diameter, nthe outside diametershown in B36.10M or that stated on the order.3.1.6 test lot, na quantity of pipe of the same ordereddiameter, heat, and wall thickness.3.2 Definitions For definitions of other terms used in thisspecification, refer to Terminology A 941.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Jan. 10, 2000. Published May 2000.2Annual Book of ASTM Standards, Vol 01.01.3Annual Book of ASTM Standards, Vol 01.02.4Available from American Society of Mechanical Engineers, Three ParkAvenue, New York, NY 10016-5990.5Available from American Petroleum Institute, 1220 L Street, N.W., Washing-ton, DC 20005-4070.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. General Requirements4.1 Pipe furnished under this specification shall conform tothe applicable requirements of Specification A 530/A 530Munless otherwise provided herein.5. Ordering Information5.1 Information items to be considered, if appropriate, forinclusion in the purchase order are as follows5.1.1 Specification designation and year of issue,5.1.2 Quantity feet or metres,5.1.3 Grade see Table 1 or 8.5,5.1.4 Size, either nominal NPS or outside diameter andwall thickness,5.1.5 Nominal length see 16.3,5.1.6 Diameter tolerances for pipe larger than NPS 43 see16.4,5.1.7 End finish plain and beveled or special, see 17.1,5.1.8 Jointers See Section 19,5.1.9 Special requirements,5.1.10 Supplementary requirements,5.1.11 Charpy V-notch impact energy see 9.4, and5.1.12 Bar coding see 21.2.6. Materials and Manufacture6.1 Skelp widths for helical seam pipe shall be neither lessthan 0.8 nor more than 3.0 times the pipe’s specified outsidediameter.6.2 The longitudinal, helical, and skelp end welds, which-ever are applicable, shall be made using welding proceduresqualified in accordance with the requirements of the ASMEBoiler and Pressure Vessel Code, Section IX.6.3 Skelp end welds shall not be permitted in finished pipe,except for helical seam pipe having its skelp end weldsmanufactured by double submerged-arc welding. For suchpipe, skelp ends shall have been properly prepared for welding.Junctions of skelp end welds and helical seam welds shall notbe located within 12 in. [300 mm] of pipe ends or jointer welds.Junctions of skelp end welds and jointer welds shall beseparated by a minimum circumferential distance of 6 in. [150mm] from junctions of the helical seam weld and the jointerweld. Skelp end welds shall be permitted at finished pipe ends,provided that there is a minimum circumferential separation of6 in. [150 mm] between the skelp end weld and the helicalseam weld at the applicable pipe ends.7. Chemical Composition7.1 The steel for any grade shall contain no more than0.16 carbon, by heat and product analyses.7.2 The steel shall contain no more than 0.0007 boron, byheat analysis.7.3 The carbon equivalent CE shall not exceed 0.40 ,calculated from any reported product analysis using the fol-lowing equationCE 5 C 1 FFMn61Si241Cu151Ni201Cr 1 Mo 1 V 1 Cb5G1where F is a compliance factor that is dependent on thecarbon content as followsCarbon Content, F Carbon Content, F0.06 0.53 0.11 0.700.06 0.54 0.12 0.750.07 0.56 0.13 0.800.08 0.58 0.14 0.850.09 0.62 0.15 0.880.10 0.66 0.16 0.927.4 A heat analysis shall be made for each heat of steelfurnished under this specification.7.5 Product analyses shall be made on at least two samplesfrom each heat of steel. Product analysis for boron is notrequired.7.6 Except as provided in 7.5, all analyses shall be inaccordance with Test Methods, Practices, and TerminologyA 751, and shall include all elements required in the carbonequivalent equation of 7.3, in addition to titanium, phosphorus,sulfur, and boron.7.7 If one or both of the product analyses representing a heatfails to conform to the specified requirements, the heat shall berejected, or analyses shall be made on double the originalnumber of test samples that failed, each of which shall conformto the requirements.8. Tensile Property Requirements8.1 Except as allowed by 8.5 the material shall conform tothe requirements for tensile properties given in Table 1.8.2 The yield strength corresponding to a total extensionunder load of 0.5 of the gage length shall be determined.8.3 A test specimen taken across the longitudinal, helical, orskelp end weld, whichever are applicable, shall show a tensilestrength not less than the minimum tensile strength specifiedfor the grade of pipe required. Test specimens shall contain theweld reinforcement and shall exhibit at least 10 elongationin 2 in. [50 mm].8.4 Transverse body tension test specimens shall be takenopposite the weld, for longitudinally welded pipe. For helicalwelded pipe the transverse body tension test shall be taken 90to the axis of the pipe and approximately halfway betweenadjacent weld convolutions.8.5 Grades intermediate to those given in Table 1 shall befurnished if so specified in the purchase order. For such grades,the permissible yield strength range shall be as given in Table1 for the next higher grade, and the required minimum tensilestrength shall exceed the required minimum yield strength bythe same amount as given in Table 1 for the next higher grade.8.6 The ratio of yield strength to tensile strength for all pipebody tests shall not exceed 0.90 for Grades 70 and lower. Forgrades higher than Grade 70, the ratio shall not exceed 0.93.TABLE 1 Tensile RequirementsAGrade Yield Strength, min Yield Strength, max Tensile Strength, minpsi MPa psi MPa psi MPa35 35000 [240] 65 000 [450] 60 000 [415]50 50000 [345] 77 000 [530] 70 000 [485]60 60000 [415] 80 000 [550] 75 000 [515]70 70000 [485] 87 000 [600] 80 000 [550]80 80000 [550] 97 000 [670] 90 000 [620]AYield strength requirements do not apply to transverse weld tests.A 1005/A 1005M – 00e128.7 For pipe body tests, the minimum elongation in 2 in. [50mm] for all grades shall be that determined by the followingequatione 5 CA0.2U0.92wheree minimum elongation in 2 in. [50 mm] in percent,rounded to the nearest percent,C 625 000 [1940],A the lesser of 0.75 in2[485 mm2] and the cross-sectionalarea of the tension test specimen, calculated using thespecified width of the test specimen and the specifiedwall thickness of the pipe, with the calculated valuerounded to the nearest 0.01 in2[1 mm2], andU specified minimum tensile strength, psi [MPa].9. Charpy V-Notch Test9.1 Except as allowed by 9.2, all pipe shall be CharpyV-notch tested in accordance with Test Methods and Defini-tions A 370. All pipe body tests shall be transverse to the pipeaxis, taken approximately 90 from the weld. All weld testsshall be transverse to the weld axis.9.2 The basic specimen is full size Charpy V-notch. For pipewith a specified wall thickness of 0.236 in [5.9 mm] or less,there is no requirement for Charpy V-notch testing. Wherecombinations of diameter and wall do not permit the smallestspecimen size, there is no requirement for proven fracturetoughness. In all cases, the largest possible specimen size shallbe used, except where such a specimen size will result inenergy values greater than 80 of the testing machinecapacitySpecified Wall Thickness, in. [mm] Specimen Size To Be Used 0.434 [11.0] Full0.304–0.433 [7.7–10.9]2⁄30.237–0.303 [6.0–7.6]1⁄29.3 When specimens smaller than full size are used, therequirements of 9.4 shall be adjusted by one of the followingrelationshipsFor 2/3 size N 5 R 3 0.67 3For 1/2 size N 5 R 3 0.50whereN adjusted value, rounded to the nearest whole number,andR applicable value from 9.4 and 9.6.9.4 The Charpy V-notch energy impact energy for the pipebody shall be not less than 30 ft-lbf [40 J] minimum average,or any higher value specified in the purchase order.9.5 All Charpy V-notch testing shall be performed at 32F[0C], or lower as agreed upon between purchaser and manu-facturer or at the manufacturer’s option.9.6 A test of weld and HAZ Charpy V-notch impact energyproperties shall be made on each type longitudinal, helical, orskelp end of weld. The Charpy V-notch impact energy shall benot less than 30 ft-lbf [40 J].9.7 Each pipe body Charpy V-notch specimen shall exhibitat least 75 shear area.10. Guided Bend Test10.1 Root and face guided bend tests shall be conducted inaccordance with Test Methods A 370. The specimens shall notfracture completely and shall not reveal any cracks or rupturesin the parent metal, heat affected zone, or fusion line longerthan1⁄8 in. [3 mm] and deeper than 121⁄2 of the specifiedwall thickness, except that cracks that occur at the edges of thespecimen and are less than1⁄4 in. [6 mm] long shall not because for rejection, regardless of depth.11. Hydrostatic Test11.1 Each length of pipe shall be subjected to the hydro-static test without leakage through the wall, except that jointersthat are comprised of segments that have passed hydrostatictesting need not be hydrostatically tested.11.2 Each length of pipe shall be tested, by the manufac-turer, to a minimum hydrostatic pressure calculated from thefollowing relationshipInch-Pound UnitsP 5 2StD3 C 4SI UnitsP 5 2000StD3 C 5whereP minimum hydrostatic test pressure, psi [kPa],S specified minimum yield strength, psi [MPa],t specified wall thickness, in. [mm],D specified outside diameter, in., [mm],C 0.85 for pipe NPS 16 through NPS 18, and 0.90 for pipe larger than NPS 18.11.3 When computed test pressures are not an exact mul-tiple of 10 psi [100 kPa], they shall be rounded to the nearest10 psi [100 kPa].11.4 The minimum hydrostatic test pressure required tosatisfy these requirements need not exceed 3000 psi [20 700kPa]. This does not prohibit testing at a higher pressure at themanufacturer’s option. The hydrostatic test pressure shall bemaintained for not less than 5 s for all sizes.12. Nondestructive Examination12.1 GeneralThe full length of each longitiudinal, helicaland skelp end weld shall be subjected to ultrasonic inspectionin accordance with 12.3, in combination with radiography inaccordance with ASME Boiler and Pressure Vessel Code,Section VIII, Paragraph UW51. Radiographic inspection shallinclude at least 8 in. [200 mm] of weld from each pipe end.12.2 All required nondestructive examination NDE shallbe performed after hydrostatic test, except for the nondestruc-tive examination NDE of jointer welds and the radiographicinspection of pipe ends.12.3 Ultrasonic InspectionAny equipment utilizing ultra-sonic principles and capable of continuous and uninterruptedinspection of the weld seam shall be used. The equipment shallbe checked with an applicable reference standard, as describedin 12.3.1 at least once every working turn or not more than 8hours to demonstrate the effectiveness of the inspection pro-cedures. The equipment shall be adjusted to produce wellA 1005/A 1005M – 00e13defined indications when the reference standard is scanned bythe inspection unit in a manner simulating inspection of theproduct.12.3.1 Reference StandardsReference standards shallhave the same diameter and thickness as the product inspected,and may be of any convenient length as determined by the pipemanufacturer. Reference standards shall be either full sectionsor coupons taken from the pipe. The

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