1、Designation: A139/A139M 04 (Reapproved 2015)A139/A139M 16Standard Specification forElectric-Fusion (Arc)-Welded Steel Pipe (NPS 4 and Over)1This standard is issued under the fixed designation A139/A139M; the number immediately following the designation indicates the yearof original adoption or, in t
2、he case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope Scope*1.1 This specification covers five grades of electric-fusion (arc)-welded straight
3、-seam or helical-seam steel pipe. Pipe of NPS4 (Note 1) and larger with nominal (average) wall thickness of 1.0 in. 25.4 mm and less are covered. Listing of standardizeddimensions are for reference (Note 2). The grades of steel are pipe mill grades having mechanical properties which differ fromstand
4、ard plate grades. The pipe is intended for conveying liquid, gas, or vapor.NOTE 1The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,”“size,”diameter,” “size,” and “nominal size.”NOTE 2A comprehensive listing of s
5、tandardized pipe dimensions is contained in ASME B36.10M.NOTE 3The suitability of pipe for various purposes is somewhat dependent on its dimensions, properties, and conditions of service. For example,for high-temperature service see applicable codes and Specification A691.1.2 The values stated in ei
6、ther inch-pound units or in SI units are to be regarded separately as standard. Within the text, the SIunits are shown in brackets. The values in each system are not exact equivalents; therefore, each system is to be used independentlyof the other.2. Referenced Documents2.1 ASTM Standards:2A370 Test
7、 Methods and Definitions for Mechanical Testing of Steel ProductsA691 Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High TemperaturesA751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel ProductsE59 Practice for Sampling Ste
8、el and Iron for Determination of Chemical Composition (Withdrawn 1996)32.2 American Welding Society Standard:3AWS B2.1 Standard for Welding Procedure and Performance Qualifications Welding Handbook, Vol 1, 8th ed2.3 ASME Standards:4ASME B36.10M Welded and Seamless Wrought Steel PipeASME B36.19M Stai
9、nless Steel PipeASME Boiler and Pressure Vessel Code, Section IX3. Ordering Information3.1 Orders for material under this specification should include the following, as required, to describe the desired materialadequately:3.1.1 Quantity (feet, metres, or number of lengths),3.1.2 Name of material (el
10、ectric-fusion-(arc) welded steel pipe),3.1.3 Grade (Table 1),3.1.4 Size (NPS, or outside diameter, and nominal wall thickness, or schedule number),3.1.5 Lengths (specific or random, Section 17),3.1.6 End finish (Section 18),1 This specification is under the jurisdiction ofASTM Committee A01 on Steel
11、, Stainless Steel and RelatedAlloys, and is the direct responsibility of Subcommittee A01.09on Carbon Steel Tubular Products.Current edition approved Sept. 1, 2015March 1, 2016. Published September 2015March 2016. Originally approved in 1932. Last previous edition approved in 20102015as A139/A139M04
12、 (2010).(2015). DOI: 10.1520/A0139_A0139M-04R15.10.1520/A0139_A0139M-16.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the AS
13、TM website.3 Available from American Welding Society (AWS), 550 NW LeJeune Rd., Miami, FL 33126, http:/www.aws.org.4 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.This document is not an AST
14、M standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In al
15、l cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.7 Hydr
16、ostatic test pressure (Section 16, Note 8, and Note 9),3.1.8 ASTM specification designation, and3.1.9 End use of material.4. Process4.1 The steel shall be made by one or more of the following processes: open-hearth, basic-oxygen, or electric-furnace.4.2 Steel may be cast in ingots or may be strand c
17、ast. When steels of different grades are sequentially strand cast, identificationof the resultant transition material is required. The producer shall remove the transition material by any established procedure thatpositively separates the grades.NOTE 4The term “basic-oxygen steelmaking” is used gene
18、rically to describe processes in which molten iron is refined to steel under a basic slag ina cylindrical furnace lined with basic refractories, by directing a jet of high-purity gaseous oxygen onto the surface of the hot metal bath.5. Manufacture5.1 The longitudinal edges of the steel shall be shap
19、ed to give the most satisfactory results by the particular welding processemployed. The weld shall be made by automatic (Note 5) means (except tack welds if used) and shall be of reasonably uniformwidth and height for the entire length of the pipe.NOTE 5Upon agreement between the purchaser and the m
20、anufacturer, manual welding by qualified procedure and welders may be used as an equalalternative under these specifications.5.2 All weld seams made in manufacturing pipe shall be made using complete joint penetration groove welds.6. Chemical Composition6.1 The steel shall conform to the chemical re
21、quirements prescribed in Table 1 and the chemical analysis shall be in accordancewith Test Methods, Practices, and Terminology A751.7. Tensile Requirements for the Steel7.1 Longitudinal tension test specimens taken from the steel shall conform to the requirements as to tensile properties prescribedi
22、n Table 2.At the manufacturers option, the tension test specimen for sizes 858 in. 219.1 mm in outside diameter and larger maybe taken transversely as described in 19.4.7.2 The yield point shall be determined by the drop of the beam, by the halt in the gage of the testing machine, by the use ofdivid
23、ers, or by other approved methods. The yield strength corresponding to a permanent offset of 0.2 % of the gage length of thespecimen, or to a total extension of 0.5 % of the gage length under load shall be determined.8. Tensile Requirements of Production Welds8.1 Reduced-section tension test specime
24、ns taken perpendicularly across the weld in the pipe, with the weld reinforcementremoved, shall show a tensile strength not less than 95 % of the minimum specified in Section 7. At the manufacturers option,the test may be made without removing the weld reinforcement, in which case the tensile streng
25、th shall be not less than thatspecified in Section 7.9. Heat Analysis9.1 An analysis of each heat of steel shall be made by the manufacturer to determine the percentages of the elements specifiedin Section 6. This analysis shall be made from a test ingot taken during the pouring of the heat. When re
26、quested by the purchaser,the chemical composition thus determined shall be reported to the purchaser or his representative, and shall conform to therequirements specified in Section 6.10. Product Analysis10.1 An analysis may be made by the purchaser on samples of pipe selected at random and shall co
27、nform to the requirementsspecified in Section 6. Samples for chemical analysis, except for spectrochemical analysis, shall be taken in accordance withMethod Test Method, Practices, and Terminology E59A751. The number of samples shall be determined as follows:TABLE 1 Chemical RequirementsElement Comp
28、osition, max, %Grade A Grade B Grade C Grade D Grade ECarbon 0.25 0.26 0.28 0.30 0.30Manganese 1.00 1.00 1.20 1.30 1.40Phosphorus 0.035 0.035 0.035 0.035 0.035Sulfur 0.035 0.035 0.035 0.035 0.035A139/A139M 162NPS Number of Samples SelectedUnder 14 2 for each lot of 200 pipes or fraction thereof14 to
29、 36, incl 2 for each lot of 100 pipes or fraction thereofOver 36 2 for each 3000 ft or fraction thereof10.2 RetestsIf the analysis of either length of pipe or length of skelp does not conform to the requirements specified in Section6, analyses of two additional lengths from the same lot shall be mad
30、e, each of which shall conform to the requirements specified.11. Dimensions, Mass, and Permissible Variations11.1 MassThe specified mass per unit length shall be calculated using the following equation:M 5CD2t!t (1)where:C = 10.69 0.02466,M = mass per unit length, lb/ft kg/m,D = outside diameter, in
31、. mm, specified or calculated (from inside diameter and wall thickness), andt = specified wall thickness, in. (to 3 decimal places) mm (to 2 decimal places)NOTE 6The mass per unit length given inASME B36.10M andASME B36.19M and the calculated mass given by the equation of 11.1 are for carbonsteel pi
32、pe. The mass per unit length of pipe made of ferritic stainless steels may be about 5 % less, and that made of austenitic stainless steel about 2 %greater than the values given. The specified mass of an individual pipe length shall be calculated as its specified mass per unit length times its length
33、.11.1.1 The mass of any length of pipe shall not vary more than 10 % over its specified mass.11.1.2 The mass of any length of pipe shall not vary more than 5 % under the specified mass if the specified wall thickness is0.188 in. 4.78 mm or less or more than 5.5 % under if the specified wall thicknes
34、s is greater than 0.188 in. 4.78 mm.TABLE 2 Tensile RequirementsGrade A Grade B Grade C Grade D Grade ETensile strength, min, ksi MPa 48 330 60 415 60 415 60 415 66 455Yield strength, min, ksi MPa 30 205 35 240 42 290 46 315 52 360Elongation in 2 in. or 50 mm, min, %:Basic minimum elongation for wal
35、ls 516 in. 7.9 mm and over in 35 30 25 23 22thickness, longitudinal strip testsFor longitudinal strips tests, a deduction for each 132-in. 0.8-mm 1.75A 1.50A 1.25 1.50 2.0decrease in wall thickness below 516 in. 7.9 mm from thebasic minimum elongation of the following percentageAElongation in 8 in.
36、or 200 mm, min, %B,C Inch Pound Units, 1500/specified minimum tensile strength (ksi)SI Units, 10 300/specified minimum tensile strength MPaA The table below gives the computed minimum values.B For wall thicknesses 12 in. 12.7 mm and greater, the elongation may be taken in 8 in. or 200 mm.C The elong
37、ation in 8 in. or 200 mm need not exceed 30 %.Wall Thickness Elongation in 2 in. or 50 mm, min, %in. mm Grade A Grade B516 (0.312) 7.9 35.00 30.00932 (0.281) 7.1 33.25 28.5014 (0.250) 6.4 31.50 27.00732 (0.219) 5.6 29.75 25.50316 (0.188) 4.8 28.00 24.00532 (0.156) 4.0 26.25 22.5018 (0.125) 3.7 24.50
38、 21.00332 (0.094) 2.4 22.75 19.50116 (0.062) 1.6 21.00 18.00NoteThe above table gives the computed minimum elongation values for each 132-in. 0.8-mm decrease in wall thickness. Where the wall thickness lies between twovalues shown above, the minimum elongation value shall be determined by the follow
39、ing equation:Grade EquationInch-Pound UnitsEquationSI UnitsA E = 56t + 17.50 E = 2.20t + 17.50B E = 48t + 15.00 E = 1.89t + 15.00C E = 40t + 12.50 E = 1.57t + 12.50D E = 48t + 8 E = 1.89t + 8E E = 64t + 2 E = 2.52t + 2where:E = elongation in 2 in. or 50 mm, %, andt = actual thickness of specimen, in
40、. mmA139/A139M 16311.1.3 The mass of a carload lot shall not vary more than 1.75 % under the specified mass. A carload lot is considered to bea minimum of 40 000 lb 18 Mg shipped on a conveyance.11.2 ThicknessThe minimum wall thickness at any point shall be not more than 12.5 % under the nominal wal
41、l thicknessspecified.11.3 CircumferenceThe pipe shall be substantially round. The outside circumference of the pipe shall not vary more than61.0 %, but not exceeding 634 in. 19.0 mm, from the nominal outside circumference based upon the diameter specified, exceptthat the circumference at ends shall
42、be sized, if necessary, to meet the requirements of Section 18.11.4 StraightnessFinished pipe shall be commercially straight. When specific straightness requirements are desired, the ordershould so state, and the tolerance shall be a matter of agreement between the purchaser and the manufacturer.11.
43、5 Ovality (Out-of-Roundness)The pipe diameter, within 4.0 in. 100 mm of ends, shall not vary more than 1 % from thespecified diameter as measured across any single plane with a bar gage, caliper, or other instrument capable of measuring actualdiameter.12. Finish12.1 Repair by WeldingThe manual, or a
44、utomatic arc, welding of injurious defects in the pipe wall, provided their depth doesnot exceed one third the specified wall thickness, will be permitted. Defects in the welds, such as sweats or leaks, shall be repairedor the piece rejected at the option of the manufacturer. Repairs of this nature
45、shall be made by completely removing the defect,cleaning the cavity, and then welding.12.2 All repaired pipe shall be tested hydrostatically in accordance with Section 16.13. Retests13.1 If any specimen tested under Sections 8 or 15 fails to meet the requirements, retests of two additional specimens
46、 from thesame lot of pipe shall be made, all of which shall meet the specified requirements. If any of the retests fail to conform to therequirements, test specimens may be taken from each untested pipe length, at the manufacturers option, and each specimen shallmeet the requirements specified, or t
47、hat pipe shall be rejected.14. Number of Production Test Specimens14.1 One longitudinal tension test specimen specified in 19.2 shall be made from the steel of each heat, or fraction thereof, usedin the manufacture of the pipe.14.2 One reduced-section production weld test specimen specified in 19.5
48、shall be taken from a length of pipe from each lotof 3000 ft (914 m)914 m of pipe, or fraction thereof, of each size and wall thickness.14.3 If any test specimen shows defective machining or develops flaws not associated with the quality of the steel or thewelding, it may be discarded and another sp
49、ecimen substituted.14.4 Each length of pipe shall be subjected to the hydrostatic test specified in Section 16.15. Qualification of Welding Procedure15.1 Welding procedures shall be qualified in accordance with the requirements of AWS B2.1; ASME Boiler and PressureVessel Code, Section IX; or other qualification procedures as noted in the American Welding Society Welding Handbook. Testsand test values shall be as specified in 15.2 and 15.3.15.2 Two reduced-section tension specimens ma
