1、Designation: A672/A672M 091A672/A672M 14Standard Specification forElectric-Fusion-Welded Steel Pipe for High-Pressure Serviceat Moderate Temperatures1This standard is issued under the fixed designation A672/A672M; the number immediately following the designation indicates the yearof original adoptio
2、n or, in the 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 NOTEEditorially corrected reference in 8.3 in February 2014.1. Scope*1.1 This specifi
3、cation2 covers steel pipe: electric-fusion-welded with filler metal added, fabricated from pressure-vessel qualityplate of any of several analyses and strength levels and suitable for high-pressure service at moderate temperatures. Heat treatmentmay or may not be required to attain the desired prope
4、rties or to comply with applicable code requirements. Supplementaryrequirements are provided for use when additional testing or examination is desired.1.2 The specification nominally covers pipe 16 in. 400 mm in outside diameter or larger with wall thicknesses up to 3 in. 75mm, inclusive. Pipe havin
5、g other dimensions may be furnished provided it complies with all other requirements of thisspecification.1.3 Several grades and classes of pipe are provided.1.3.1 Grade designates the type of plate used.1.3.2 Class designates the type of heat treatment performed during manufacture of the pipe, whet
6、her the weld is radiographicallyexamined, and whether the pipe has been pressure tested as listed in 1.3.3.1.3.3 Class designations are as follows (Note 1):Class Heat Treatment on PipeRadiography,see SectionPressure Test,see Section10 none none none11 none 9 none12 none 9 8.313 none none 8.320 stres
7、s relieved, see 5.3.1 none none21 stress relieved, see 5.3.1 9 none22 stress relieved, see 5.3.1 9 8.323 stress relieved, see 5.3.1 none 8.330 normalized, see 5.3.2 none none31 normalized, see 5.3.2 9 none32 normalized, see 5.3.2 9 8.333 normalized, see 5.3.2 none 8.340 normalized and tempered, see
8、5.3.3 none none41 normalized and tempered, see 5.3.3 9 none42 normalized and tempered, see 5.3.3 9 8.343 normalized and tempered, see 5.3.3 none 8.350 quenched and tempered, see 5.3.4 none none51 quenched and tempered, see 5.3.4 9 none52 quenched and tempered, see 5.3.4 9 8.353 quenched and tempered
9、, see 5.3.4 none 8.3NOTE 1Selection of materials should be made with attention to temperature of service. For such guidance, Specification A20/A20M may beconsulted.1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI unitsare
10、 shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.09on Carbon Stee
11、l Tubular Products.Current edition approved Oct. 1, 2009May 1, 2014. Published November 2009May 2014. Originally approved in 1972. Last previous edition approved in 20082009 asA672 08.A672/A672M 091. DOI: 10.1520/A0672_A0672M-09E01.10.1520/A0672_A0672M-14.2 For ASME Boiler and Pressure Vessel Code a
12、pplications see related Specification SA-672 in Section II of that Code.This document is not an ASTM 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 dep
13、ict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all 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 Internatio
14、nal, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1independently of the other. Combining values from the two systems may result in non-conformance with the standard. Theinch-pound units shall apply unless the “M” designation of this specification is specified in
15、 the order.2. Referenced Documents2.1 ASTM Standards:3A20/A20M Specification for General Requirements for Steel Plates for Pressure VesselsA370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel PlatesA530/A
16、530M Specification for General Requirements for Specialized Carbon and Alloy Steel PipeA577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel PlatesA578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special ApplicationsE109 Method for Dry Po
17、wder Magnetic Particle Inspection; Replaced by E 709 (Withdrawn 1981)4E138 Method for Wet Magnetic Particle Inspection; Replaced by E 709 (Withdrawn 1981)4E110 Test Method for Indentation Hardness of Metallic Materials by Portable Hardness TestersE165 Practice for Liquid Penetrant Examination for Ge
18、neral IndustryE709 Guide for Magnetic Particle Testing2.1.1 Plate Steel Specifications (Table 1)A202/A202M Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Manganese-Silicon (Withdrawn 2004)4A204/A204M Specification for Pressure Vessel Plates, Alloy Steel, MolybdenumA285/A285M Specifi
19、cation for Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile StrengthA299/A299M Specification for Pressure Vessel Plates, Carbon Steel, Manganese-SiliconA302/A302M Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Molybdenum and Manganese-Molybdenum-NickelA515/A515M
20、Specification for Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature ServiceA516/A516M Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature ServiceA533/A533M Specification for Pressure Vessel Plates, Alloy Steel, Quenched and Tempere
21、d, Manganese-Molybdenum andManganese-Molybdenum-NickelA537/A537M Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel2.2 ASME Boiler and Pressure Vessel Code:5Section II, Material Specifications IISection III, Nuclear VesselsIIISection VIII, Unfired Pressure Vessels
22、VIIISection IX, Welding QualificationsIX3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 A lot shall consist of 200 ft 60 m or fraction thereof of pipe from the same heat of steel.3.1.2 The description of a lot may be further restricted by use of Supplementary Requirement S14.4
23、. Ordering Information4.1 The inquiry and order for material under this specification should include the following information:4.1.1 Quantity (feet, metres, or number of lengths),4.1.2 Name of material (steel pipe, electric-fusionwelded),4.1.3 Specification number,4.1.4 Grade and class designations
24、(see 1.3),4.1.5 Size (inside or outside diameter, nominal or minimum wall thickness),4.1.6 Length (specific or random),4.1.7 End finish (11.4),4.1.8 Purchase options, if any (see 5.2.3, 11.3, 14.1 and Sections 16, 20.1, 21, 22 of Specification A530/A530M), and4.1.9 Supplementary requirements, if any
25、, (refer to S1 through S14).5. Materials and Manufacture5.1 MaterialsThe steel plate material shall conform to the requirements of the applicable plate specification for pipe gradeordered as listed in Table 1.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Custome
26、r Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.4 The last approved version of this historical standard is referenced on www.astm.org.5 Available from American Society of Mechanical Engineers (ASME),
27、ASME International Headquarters, ThreeTwo Park Ave., New York, NY 10016-5990,http:/www.asme.org.A672/A672M 1425.2 Welding:5.2.1 The joints shall be double-welded, full-penetration welds made in accordance with procedures and by welders or weldingoperators qualified in accordance with the ASME Boiler
28、 and Pressure Vessel Code, Section IX.5.2.2 The welds shall be made either manually or automatically by an electric process involving the deposition of filler metal.5.2.3 The welded joint shall have positive reinforcement at the center of each side of the weld, but not more than 18 in. 3 mm.This rei
29、nforcement may be removed at the manufacturers option or by agreement between the manufacturer and purchaser. Thecontour of the reinforcement shall be smooth, and the deposited metal shall be fused smoothly and uniformly into the plate surface.5.2.4 When radiographic examination in accordance with 9
30、.1 is to be used, the weld reinforcement shall be governed by themore restrictive provisions of UW51 of Section VIII of the ASME Boiler and Pressure Vessel Code instead of 5.2.3 of thisspecification.5.3 Heat TreatmentAll classes other than 10, 11, 12 and 13 shall be heat treated in furnace controlle
31、d to 6 25 F 15 C andequipped with a recording pyrometer so that heating records are available. Heat treating after forming and welding shall be to oneof the following:5.3.1 Classes 20, 21, 22, and 23 pipe shall be uniformly heated within the post-weld heat-treatment temperature range indicatedin Tab
32、le 2 for a minimum of 1 h/in. 0.4 hr/cm of thickness or 1 h, whichever is greater.5.3.2 Classes 30, 31, 32, and 33 pipe shall be uniformly heated to a temperature in the austenitizing range and not exceedingthe maximum normalizing temperature indicated in Table 2 and subsequently cooled in air at ro
33、om temperature.5.3.3 Classes 40, 41, 42, and 43 pipe shall be normalized in accordance with 5.3.2.After normalizing, the pipe shall be reheatedto the tempering temperature indicated in Table 2 as a minimum and held at temperature for a minimum of 12 h/in. 0.2 hr/cmof thickness or 12 h, whichever is
34、greater, and air cooled.TABLE 1 Plate SpecificationPipe Grade Type of Steel ASTM SpecificationNo. GradeA 45 plain carbon A285/A285M AA 50 plain carbon A285/A285M BA 55 plain carbon A285/A285M CB 60 plain carbon, killed A515/A515M 60B 65 plain carbon, killed A515/A515M 65B 70 plain carbon, killed A51
35、5/A515M 70C 55 plain carbon, killed, fine grain A516/A516M 55C 60 plain carbon, killed, fine grain A516/A516M 60C 65 plain carbon, killed, fine grain A516/A516M 65C 70 plain carbon, killed, fine grain A516/A516M 70D 70 manganese-siliconnormalizedA537/A537M 1D 70 manganese-siliconnormalizedA537/A537M
36、 Cl-1D80 manganese-siliconQ for example, C 7010.13.2 Bar CodingIn addition to the requirements in 13.1, bar coding is acceptable as a supplemental identification method. Thepurchaser may specify in the order a specific bar coding system to be used.SUPPLEMENTARY REQUIREMENTSOne or more of the followi
37、ng supplementary requirements shall be applied only when specified bythe purchaser in the inquiry, contract, or order. Details of these supplementary requirements shall beagreed upon in writing by the manufacturer and purchaser. Supplementary requirements shall in noway negate any requirement of the
38、 specification itself.S1. Tension and Bend TestsS1.1 Tension tests in accordance with 8.1 and bend tests in accordance with 8.2 shall be made on specimens representing eachlength of pipe.S2. Charpy V-Notch Test (For pipe with nominal wall thickness of 12 in. 13 mm and greater)S2.1 RequirementsThe ac
39、ceptable test energies shall be as shown in Table A1.15 of Specification A20/A20M for theapplicable plate specification unless otherwise stated in the order. As an alternative, the test temperature may be 10 F 12 C.S2.2 Number of SpecimensEach test shall consist of at least three specimens.S2.2.1 On
40、e base-metal test shall be made from one pipe length per heat, per heat-treat charge, and per nominal wall thickness.For pipe from Classes 10, 11, 12, and 13, one base metal test shall be made per heat per size and per wall thickness.S2.2.2 One weld-metal and one heat-affected zone (HAZ) metal test
41、shall be made in accordance with NB 4335 of Section IIIof the ASME Boiler and Pressure Vessel Code.S2.3 Test Specimen Location and Orientation:A672/A672M 146S2.3.1 Base-metal specimens of stress-relieved, normalized, and normalized and tempered pipe shall be taken in accordancewith the provisions fo
42、r tension specimens in the body of this specification.S2.3.2 Base-metal specimens of quenched and tempered pipe shall be taken in accordance with the provisions of NB 2225 ofSection III of the ASME Boiler and Pressure Vessel Code.S3. Hardness TestS3.1 Hardness measurements in accordance with Test Me
43、thods and Definitions A370 or Test Method E110 shall be made acrossthe welded joint at both ends of each length of pipe. The maximum acceptable hardness shall be as agreed upon between themanufacturer and the purchaser.S4. Product AnalysisS4.1 Product analyses in accordance with 7.1 shall be made on
44、 each 500 ft 150 m of pipe or fraction thereof or alternatively,on each length of pipe as designated in the order.S5. MetallographyS5.1 The manufacturer shall furnish one photomicrograph to show the microstructure of 100 magnification of the weld metalor base metal of the pipe in the as-finished con
45、dition. The purchaser shall state in the order: the material, base metal or weld, andthe number and locations of tests to be made. This test is for information only.S6. Magnetic Particle Examination of Base MetalS6.1 All accessible surfaces of the pipe shall be examined in accordance with Methods E1
46、09 or E138.Accessible is defined as:All outside surfaces, all inside surfaces of pipe 24 in. 600 mm in diameter and greater, and inside surfaces of pipe less than 24in. 600 mm in diameter for a distance of one pipe diameter from the ends.S6.2 Acceptance StandardsThe following relevant indications ar
47、e unacceptable:S6.2.1 Any linear indications greater than 116 in. 1 mm long for materials less than 58 in. 16 mm thick; greater than 18in. 3 mm long for materials 58 in. 16 mm thick to under 2 in. 50 mm thick; and greater than 316 in. 5 mm long for materials2 in. 50 mm thick or greater.S6.2.2 Rounde
48、d indications with dimensions greater than 18 in. 3 mm for thicknesses less than 58 in. 16 mm and greaterthan 316 in. 5 mm for thicknesses 58 in. 16 mm and greater.S6.2.3 Four or more indications in any line separated by 116 in. 1 mm or less edge-to-edge.S6.2.4 Ten or more indications in any 6 in.2
49、39 cm2 of surface with the major dimension of this area not to exceed 6 in. 150mm when it is taken in the most unfavorable orientation relative to the indications being evaluated.S7. Magnetic Particle Examination of Weld MetalS7.1 All accessible weld shall be examined in accordance with Practice E709.Accessible is defined as:All outside surfaces, allinside surfaces of pipe less than 24 in. 600 mm in diameter for a distance of one pipe diameter from the ends.S7.2 Acceptance CriteriaThe
