1、Designation: A671/A671M 16A671/A671M 16aStandard Specification forElectric-Fusion-Welded Steel Pipe for Atmospheric andLower Temperatures1This standard is issued under the fixed designation A671/A671M; the number immediately following the designation indicates the yearof original adoption or, in the
2、 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*1.1 This specification2 covers electric-fusion-welded steel pipe with filler metal added,
3、fabricated from pressure vessel qualityplate of several analyses and strength levels and suitable for high-pressure service at atmospheric and lower temperatures. Heattreatment may or may not be required to attain the desired properties or to comply with applicable code requirements.Supplementary re
4、quirements 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 and of 14 in. 6 mm wall thicknessor greater. Pipe having other dimensions may be furnished provided it complies with all other req
5、uirements of this specification.1.3 Several grades and classes of pipe are provided.1.3.1 Grade designates the type of plate used as listed in 5.1.1.3.2 Class designates the type of heat treatment performed during manufacture of the pipe, whether the weld is radiographicallyexamined, and whether the
6、 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 Pipe Radiography,see SectionPressure Test,see:10 none none none11 none 9 none12 none 9 8.313 none none 8.320 stress relieved, see 5.3.1 none none21 stress relieved, see 5.3.1 9
7、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 5.3.3 none none41 normalized and tempered, see 5.3.3 9 none42 n
8、ormalized 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, see 5.3.4 none 8.370 quenched and precipitation heattreatedno
9、ne none71 quenched and precipitation heattreated9 none72 quenched and precipitation heattreated9 8.373 quenched and precipitation heattreatednone 8.3NOTE 1Selection of materials should be made with attention to temperature of service. For such guidance, Specification A20/A20M may beconsulted.1 This
10、specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.09on Carbon Steel Tubular Products.Current edition approved May 1, 2016Dec. 1, 2016. Published May 2016December 2016. Originally approved in 1
11、972. Last previous edition approved in 20142016 asA671 14.A671 16. DOI: 10.1520/A0671_A0671M-16.10.1520/A0671_A0671M-16A.2 For ASME Boiler and Pressure Vessel Code applications see related Specification SA-671 in Section II of that Code.This document is not an ASTM standard and is intended only to p
12、rovide 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 all cases only the current versionof t
13、he 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 States11.4 The values stated in either SI units or in
14、ch-pound units are to be regarded separately as standard. Within the text, the SI unitsare shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be usedindependently of the other. Combining values from the two systems may result in non-conform
15、ance with the standard. Theinch-pound units shall apply unless the “M” designation of this specification is specified in 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 Mec
16、hanical Testing of Steel ProductsA435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel PlatesA530/A530M Specification for General Requirements for Specialized Carbon and Alloy Steel PipeA577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel PlatesA578/A578M Spec
17、ification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special ApplicationsE110 Test Method for Rockwell and Brinell Hardness of Metallic Materials by Portable Hardness TestersE165E165/E165M Practice for Liquid Penetrant Examination for General IndustryE709 Guide for Magnetic
18、Particle Testing2.2 Plate Steels:A203/A203M Specification for Pressure Vessel Plates, Alloy Steel, NickelA285/A285M Specification for Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile StrengthA299/A299M Specification for Pressure Vessel Plates, Carbon Steel, Manganese-SiliconA353/A
19、353M Specification for Pressure Vessel Plates, Alloy Steel, Double-Normalized and Tempered 9 % NickelA515/A515M Specification for Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature ServiceA516/A516M Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and
20、 Lower-Temperature ServiceA517/A517M Specification for Pressure Vessel Plates, Alloy Steel, High-Strength, Quenched and TemperedA537/A537M Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon SteelA553/A553M Specification for Pressure Vessel Plates, Alloy Steel, Quenched
21、and Tempered 7, 8, and 9 % NickelA736/A736M Specification for Pressure Vessel Plates, Low-Carbon Age-Hardening Nickel-Copper-Chromium-Molybdenum-Columbium Alloy Steel2.3 ASME Boiler and Pressure Vessel Code:4Section IISection IIISection VIIISection IX3. Terminology3.1 Definitions of Terms Specific t
22、o This Standard:3.1.1 lota lot shall consist of 200 ft 60 m or fraction thereof of pipe from the same heat of steel.4. 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.
23、2 Name of material (steel pipe, electric-fusionwelded),4.1.3 Specification number,4.1.4 Grade and class designations (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.
24、3 and 11.3 of this specification. See also Specification A530/A530M),4.1.9 Supplementary requirements, if any.5. Materials and Manufacture5.1 MaterialsThe steel plate material shall conform to the requirement of the applicable plate specification for the pipe gradeordered as listed in Table 1.3 For
25、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 ASTM website.4 Available from American Society of Mechanical Engineers (ASME), A
26、SME International Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.A671/A671M 16a25.2 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 and
27、 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 As welded, the welded joint shall have positive reinforcement at the center of each side of the weld, but no more than 18in. 3 mm. Th
28、is reinforcement may be removed at the manufacturers option or by agreement between the manufacturer andpurchaser. The contour of the reinforcement shall be smooth and the deposited metal shall be fused smoothly and uniformly intothe plate surface.5.3 Heat TreatmentAll classes other than 10, 11, 12,
29、 and 13 shall be heat treated in furnace controlled to 6 25 F 6 15 Cand equipped with a recording pyrometer so that heating records are available. Heat treating after forming and welding shall beto one of the following:5.3.1 Classes 20, 21, 22, and 23 pipe shall be uniformly heated within the post-w
30、eld heat-treatment temperature range indicatedin Table 2 for a minimum of 1 h/in. 0.4 h/cm of thickness or for 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 i
31、ndicated in Table 2 and subsequently cooled in air at room 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
32、of 12 h/in. 0.2 h/cm ofthickness or for 12 h, whichever is greater, and air cooled.5.3.4 Classes 50, 51, 52, and 53 pipe shall be uniformly heated to a temperature in the austenitizing range, and not exceedingthe maximum quenching temperature indicated in Table 2 and subsequently quenched in water o
33、r oil. After quenching, the pipeshall be reheated to the tempering temperature indicated in Table 2 as a minimum and held at that temperature for a minimum of12 h/in. 0.2 h/cm of thickness or for 12 h, whichever is greater, and air cooled.5.3.5 Classes 70, 71, 72, and 73 pipe shall be uniformly heat
34、ed to a temperature in the austenitizing range, not exceeding themaximum quenching temperature indicated in Table 2, and subsequently quenched in water or oil. After quenching the pipe shallbe reheated into the precipitation heat treating range indicated in Table 2 for a time to be determined by the
35、 manufacturer.6. General Requirements for Delivery6.1 Material furnished to this specification shall conform to the applicable requirements of the current edition of SpecificationA530/A530M unless otherwise provided herein.7. Chemical Composition7.1 Product Analysis of PlateThe pipe manufacturer sha
36、ll make an analysis of each mill heat of plate material. The productanalysis so determined shall meet the requirements of the plate specification to which the material was ordered.TABLE 1 Plate SpecificationsPipe Grade Type of Steel ASTM SpecificationNo. Grade /Class /TypeCA 55 plain carbon A285/A28
37、5M Gr CCB 60 plain carbon, killed A515/A515M Gr 60CB 65 plain carbon, killed A515/A515M Gr 65CB 70 plain carbon, killed A515/A515M Gr 70CC 60 plain carbon, killed, fine grain A516/A516M Gr 60CC 65 plain carbon, killed, fine grain A516/A516M Gr 65CC 70 plain carbon, killed, fine grain A516/A516M Gr 7
38、0CD 70 manganese-silicon, normalized A537/A537M Cl 1CD 80 manganese-silicon, quenched andtemperedA537/A537M Cl 2CFA 65 nickel steel A203/A203M Gr ACFB 70 nickel steel A203/A203M Gr BCFD 65 nickel steel A203/A203M Gr DCFE 70 nickel steel A203/A203M Gr ECG 100 9 % nickel A353/A353MCH 115 9 % nickel A5
39、53/A553M Type 1CJA 115 alloy steel, quenched and tempered A517/A517M Gr ACJB 115 alloy steel, quenched and tempered A517/A517M Gr BCJE 115 alloy steel, quenched and tempered A517/A517M Gr ECJF 115 alloy steel, quenched and tempered A517/A517M Gr FCJH 115 alloy steel, quenched and tempered A517/A517M
40、 Gr HCJP 115 alloy steel, quenched and tempered A517/A517M Gr PCK 75 carbon-manganese-silicon A299/A299M Gr ACP85 alloy steel, age hardening, quenchedand precipitation heat treatedA736/A736M Gr A,Class 3A671/A671M 16a37.2 Product Analyses of WeldThe pipe manufacturer shall make an analysis of finish
41、ed deposited weld material from each 200ft 60 m or fraction thereof. Analyses shall conform to the welding procedure for deposited weld metal.7.3 Analysis may be taken from the mechanical test specimens. The results of the analyses shall be reported to the purchaser.8. Mechanical Requirements8.1 Ten
42、sion Test:8.1.1 RequirementsTransverse tensile properties of the welded joint shall meet the minimum requirements for ultimate tensilestrength of the specified plate material. In addition for Grades CD and CJ, when these are of Class 3x, 4x, or 5x, and Grade CPof 7x, the transverse tensile propertie
43、s of the base plate shall be determined on specimens cut from the heat-treated pipe. Theseproperties shall meet the mechanical test requirements of the plate specification.8.1.2 Number of TestsOne test specimen of weld metal and one specimen of base metal, if required by 8.1.1, shall be madeand test
44、ed to represent each lot of finished pipe.8.1.3 Test Specimen Location and OrientationThe test specimens shall be taken transverse to the weld at the end of thefinished pipe and may be flattened cold before final machining to size.8.1.4 Test MethodThe test specimen shall be made in accordance with Q
45、W-150 in Section IX of the ASME Boiler andPressure Vessel Code. The test specimen shall be tested at room temperature in accordance with Test Methods and DefinitionsA370.8.2 Transverse Guided Weld Bend Test:8.2.1 RequirementsThe bend test shall be acceptable if no cracks or other defects exceeding 1
46、8 in. 3 mm in any directionare present in the weld metal or between the weld and the base metal after bending. Cracks that originate along the edges of thespecimen during testing, and that are less than 14 in. 6 mm measured in any direction shall not be considered.TABLE 2 Heat Treatment ParametersAP
47、ipe GradeB ASTM Specificationand Grade / Class / TypePost-WeldHeat-TreatmentTemperature Range F CNormalizingTemperature, max,unless otherwisenotedF CQuenchingTemperature,max, unlessotherwise notedF CTemperingTemperature,min,F CPrecipitationHeat TreatmentTemperatureRange F CCA 55 A285/A285M (C) 11001
48、250 590680 1700 925 . . .CB 60 A515/A515M (60) 11001250 590680 1750 950 . . .CB 65 A515/A515M (65) 11001250 590680 1750 950 . . .CB 70 A515/A515M (70) 11001250 590680 1750 950 . . .CC 60 A516/A516M (60) 11001200 590650C 1700 925 1700 925 1100 590D .CC 65 A516/A516M (65) 11001200 590650C 1700 925 170
49、0 920 1100 590D .CC 70 A516/A516M (70) 11001200 590650C 1700 925 1700 925 1100 590D .CD 70 A537/A537M (Cl 1) 11001250 590680 1700 925 . . .CD 80 A537/A537M (Cl 2) 11001250 590680C . 1650 900 1100 590 .CFA 65 A203/A203M (A) 11001175 590635 1750 950 . . .CFB 70 A203/A203M (B) 11001175 590635 1750 950 . . .CFD 65 A203/A203M (D) 11001175 590635 1750 950 . . .CFE 70 A203/A203M (E) 11001175 590635 1750 950 . . .CG 100 A353/A353M
