1、Designation: B474 03 (Reapproved 2009)B474/B474M 15Standard Specification forElectric Fusion Welded Nickel and Nickel Alloy Pipe1This standard is issued under the fixed designation B474;B474/B474M; the number immediately following the designation indicates theyear of original adoption or, in the cas
2、e of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope Scope*1.1 This specification covers electric fusion welded pipe suitable for high-temperature
3、or corrosive service as listed in Table 1.(Although no restrictions are placed on the sizes of pipe that may be furnished under this specification, commercial practice iscommonly limited to sizes not less than 8 in. (203 mm)203 mm nominal diameter.)1.2 Five classes of pipe are covered as follows:1.2
4、.1 Class 1Pipe shall be double welded by processes employing filler metal in all passes and shall be completelyradiographed.1.2.2 Class 2Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.1.2.3 Class 3Pipe shall be single welded by processes emp
5、loying filler metal in all passes and shall be completelyradiographed.1.2.4 Class 4Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the additionof filler metal.1.2.5 Class 5Pipe shall be double welded by processes employing filler metal in all passes a
6、nd shall be spot radiographed.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values given inparentheses are mathematical conversions to SI units that are provided for information only and are not considered stated in eachsystem may not be
7、exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
8、of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety DataSheet (MSDS)(SDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices,and determine the applicability of regu
9、latory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless SteelsA370 Test Methods and Definitions for Mechanical Testing of Steel ProductsB127 Specification for Nickel-Copper Alloy (UNS N0440
10、0) Plate, Sheet, and StripB162 Specification for Nickel Plate, Sheet, and StripB168 Specification for Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, N06045,and N06696), Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617), and Nickel-Iron-Chromium-Tungsten Alloy(UNS
11、 N06674) Plate, Sheet, and StripB333 Specification for Nickel-Molybdenum Alloy Plate, Sheet, and StripB424 Specification for Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825, UNS N08221, and UNS N06845) Plate, Sheet, and StripB435 Specification for UNS N06002, UNS N06230, UNS N12160, and UNS R30556 Plate, Sheet, an
12、d StripB443 Specification for Nickel-Chromium-Molybdenum-ColumbiumAlloy(UNS N06625) and Nickel-Chromium-Molybdenum-SiliconAlloy (UNS N06219) Plate, Sheet, and Strip1 This specification is under the jurisdiction ofASTM Committee B02 on Nonferrous Metals andAlloys and is the direct responsibility of S
13、ubcommittee B02.07 on RefinedNickel and Cobalt and Their Alloys.Current edition approved Oct. 1, 2009Oct. 1, 2015. Published October 2009November 2015. Originally approved in 1968. Last previous edition approved in 20032009as B474 03.B474 03 (2009). DOI: 10.1520/B0474-03R09.10.1520/B0474_B474M-15.*
14、New designation Designation established in accordance with ASTM E527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume informa
15、tion, refer to the standards Document Summary page on the ASTM website.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 depi
16、ct 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 Internation
17、al, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1B463 Specification for UNS N08020 Alloy Plate, Sheet, and StripB536 Specification for Nickel-Iron-Chromium-Silicon Alloys (UNS N08330 and N08332) Plate, Sheet, and StripB575 Specification for Low-Carbon Nickel-Ch
18、romium-Molybdenum, Low-Carbon Nickel-Chromium-Molybdenum-Copper,Low-Carbon Nickel-Chromium-Molybdenum-Tantalum, Low-Carbon Nickel-Chromium-Molybdenum-Tungsten, and Low-Carbon Nickel-Molybdenum-Chromium Alloy Plate, Sheet, and StripB582 Specification for Nickel-Chromium-Iron-Molybdenum-Copper Alloy P
19、late, Sheet, and StripB880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt AlloysB899 Terminology Relating to Non-ferrous Metals and AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits
20、 in Test Data to Determine Conformance with SpecificationsE1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys2.2 American Society of Mechanical Engineers Standard:3ASME Boiler and Pressure Vessel Code, Section IX and Section VIII, Div. 13 Available from American S
21、ociety of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.TABLE 1 Recommended Heat TreatmentAlloy UNS Designation PWHTA,BDeg. F. (Deg. C) Quench200 (Ni) N02200 1650-1700 (900 to 928) Rapid Air/water201 (Low C) N02201 1650-170
22、0 (900 to 928) Rapid Air/water400 (Ni-Cu) N04400 1650-1700 (900 to 928) Rapid Air/waterX (Ni-Cr-Mo-Fe) N06002 2150 (1177)C Rapid Air/waterC22D (Low C-Ni-Mo-Cr) N06022 2050-(1120)C Rapid Air/waterG30D (Ni-Cr-Fe-Mo-Cu) N06030 2150 (1177)C Rapid Air/waterC2000D (Ni-Cr-Mo-Cu) N06200 2075-2125 (1135-1163
23、)B Rapid Air/water230D (Ni-Cr-W-Mo) N06230 2150-2250 (1177-1232)B Rapid Air/water600 (Ni-Cr-Fe) N06600 1800-1850 (983 to 1010) Rapid Air/water601 (Ni-Cr-Fe-Al) N06601 1600-1650 (874 to 900)E Rapid Air/water625 (Ni-Cr-Mo-Cb) Grade 1 N06625 1600 (871)C Rapid Air/water625 (Ni-Cr-Mo-Cb) Grade 2 N06625 2
24、000 (1093)C Rapid Air/waterG3D (Ni-Cr-Fe-Mo-Cu) N06985 2100-2150 (1147 to 1177)B Rapid Air/waterAlloy 20 (Cr-Ni-Fe-Mo-Cu-Cb) N08020 1700-1850 (927 to 1010) Rapid Air/water. N08024 1925-1975 (1052 to 1079) Rapid Air/water. N08026 2050-2200 (1121 to 1204) Rapid Air/water825 (Ni-Fe-Cr-Mo-Cu) N08825 170
25、0-1800 (930 to 980)E Rapid Air/waterC276 (Low C-Ni-Mo-Cr) N10276 2050 (1121)C Rapid Air/waterB2 (Ni-Mo) N10665 1950 (1065)C Rapid Air/waterB3D (Ni-Mo) N10675 1950 (1065)C Rapid Air/waterTABLE 1 Recommended Heat TreatmentAlloy UNS Designation PWHTA,BDeg. F. Deg. C Quench200 (Ni) N02200 1650-1700 900
26、to 928 Rapid Air/water201 (Low C) N02201 1650-1700 900 to 928 Rapid Air/water400 (Ni-Cu) N04400 1650-1700 900 to 928 Rapid Air/waterX (Ni-Cr-Mo-Fe) N06002 2150 1177C Rapid Air/waterC22D (Low C-Ni-Mo-Cr) N06022 2050-1120C Rapid Air/waterG30D (Ni-Cr-Fe-Mo-Cu) N06030 2150 1177C Rapid Air/waterC2000D (N
27、i-Cr-Mo-Cu) N06200 2075-2125 1135-1163B Rapid Air/water230D (Ni-Cr-W-Mo) N06230 2150-2250 177-1232B Rapid Air/water600 (Ni-Cr-Fe) N06600 1800-1850 983 to 1010 Rapid Air/water601 (Ni-Cr-Fe-Al) N06601 1600-1650 874 to 900E Rapid Air/water625 (Ni-Cr-Mo-Cb) Grade 1 N06625 1600 871C Rapid Air/water625 (N
28、i-Cr-Mo-Cb) Grade 2 N06625 2000 1093C Rapid Air/waterG3D (Ni-Cr-Fe-Mo-Cu) N06985 2100-2150 1147 to 1177B Rapid Air/waterAlloy 20 (Cr-Ni-Fe-Mo-Cu-Cb) N08020 1700-1850 927 to 1010 Rapid Air/water825 (Ni-Fe-Cr-Mo-Cu) N08825 1700-1800 930 to 980E Rapid Air/waterC276 (Low C-Ni-Mo-Cr) N10276 2050 1121C Ra
29、pid Air/waterB2 (Ni-Mo) N10665 1950 1065C Rapid Air/waterB3D (Ni-Mo) N10675 1950 1065C Rapid Air/waterA Recommended temperaturesDifferent temperatures may be selected by either the purchaser or the manufacturer.B Set temperatures, 25F (14C).14C.C Minimum set temperature.D Registered Trademark of Hay
30、nes International.E Heat treatment is highly dependent on intended service temperature consult material manufacturer for specific heat treatments for end use temperature.B474/B474M 1522.3 American Welding Society Standards:4A5.4 Corrosion-Resisting Chromium and Chromium Nickel Steel Covered Welding
31、ElectrodesA5.9 Corrosion-Resisting Chromium and Chromium Nickel Steel Welding Rods and Bare ElectrodesA5.11 Nickel and Nickel Alloy Covered Welded ElectrodesA5.14 Nickel and Nickel Alloy Bare Welding Rods and Electrodes3. Terminology3.1 Terms defined in Terminology B899 shall apply unless otherwise
32、defined in this standard.4. Ordering Information4.1 It is the responsibility of the purchaser to specify all requirements that are necessary for material ordered under thisspecification. Examples of such requirements include, but are not limited to, the following:4.1.1 Quantity (feet (feet, metres,
33、or number of lengths),4.1.2 Name of material or UNS number (electric-fusion-welded pipe),4.1.3 Alloy (Table 1),4.1.4 Class (see 1.2),4.1.5 Size (outside diameter and minimum wall thickness),4.1.6 Length (specific or random),4.1.7 ASTM designation and year of issue,4.1.8 Authorization for repair of p
34、late defects by welding without prior approval if such is intended (see 9.4),4.1.9 Circumferential weld permissibility (see 8.3.2), and4.1.10 Supplementary requirements.5. Materials and Manufacture5.1 MaterialsThe plate material shall conform to the requirements of the appropriate raw material speci
35、fication listed in 2.1.5.2 Welding:5.2.1 The joints shall be full penetration double-welded or single-welded butt joints employing fusion welding processes asdefined under “Definitions,” ASME Boiler and Pressure Vessel Code, Section IX. This specification makes no provision for anydifference in weld
36、 quality requirements regardless of the weld joint type employed (single or double) in making the weld. Wherebacking rings or strips are employed, the ring or strip material shall be of the same P-number (Table QW-422 of Section IX) asthe plate being joined. Backing rings or strips shall be complete
37、ly removed after welding, prior to any required radiography, andthe exposed weld surface shall be examined visually for conformance to the requirements of 5.2.3. Welds made by proceduresemploying backing strips or rings which remain in place are prohibited. Welding procedures and welding operators s
38、hall bequalified in accordance with ASME Boiler and Pressure Vessel Code, Section IX.5.2.2 Except as provided in 5.2.2.1 and 5.2.2.2, welds shall be made in their entirety by processes involving the deposition offiller metal.5.2.2.1 For Class 4 pipe employing multiple passes, the root-pass may be co
39、mpleted without the addition of filler metal.5.2.2.2 For Class 4 pipe, the weld surface exposed inside the pipe may result from a single pass made from the inside of thepipe without the addition of filler metal.5.2.2.3 All single-welded pipe shall be completely radiographed radiographed.5.2.3 The we
40、ld surface on either side of the weld shall be flush with the base plate or shall have a reasonably uniform crown,not to exceed 18 in. (3.2 mm).3.2 mm. Any weld reinforcement may be removed at the manufacturers option or by agreementbetween the manufacturer and purchaser. The contour of the reinforc
41、ement shall be reasonably smooth and free of irregularities.The deposited metal shall be fused uniformly into the plate surface. No concavity of contour is permitted unless the resultingthickness of weld metal is equal to or greater than the minimum thickness of the adjacent base metal.5.2.4 Weld de
42、fects shall be repaired by removal to sound metal and rewelding. Subsequent heat treatment and inspection (thatis, visual, radiographic and dye penetrant) shall be as required on the original welds.5.3 Heat Treatment:5.3.1 The pipe furnished under this specification, shall be heat treated in accorda
43、nce with Table 1. See Table 1 for recommendedpractice.5.3.2 The purchase order shall specify one of the following conditions if the heat-treated condition specified by Table 1 is notdesired by the purchaser.5.3.2.1 A final heat treatment other than that specified in Table 1Each pipe supplied under t
44、his requirement shall be stenciledwith the final heat-treatment temperature in degrees Fahrenheit or degrees Celsius after the suffix “HT.”4 Available from American Welding Society (AWS), 550 NW LeJeune Rd., Miami, FL 33126, http:/www.aws.org.B474/B474M 1535.3.2.2 No final heat-treatment of pipe fab
45、ricated of plate that has been heat treated at temperatures required by thisspecificationEach pipe supplied under this requirement shall be stenciled with the suffix “HT-O.”5.3.2.3 No final heat-treatment of pipe fabricated of plate that has not been heat treated at temperatures required by thisspec
46、ificationEach pipe supplied under this requirement shall be stenciled with the suffix “HT-SO.”6. Chemical Composition6.1 Product Analysis of PlateThe pipe manufacturer shall make an analysis of each mill heat of plate material. The productanalysis so determined shall meet the requirements of the pla
47、te specification to which the material was ordered.6.2 Product Analysis of WeldThe pipe manufacturer shall make an analysis of the finished deposited weld material from eachlot of pipe. The chemical composition of the weld deposit shall fall within the chemical composition limits of the applicable A
48、WSfiller metal specification for the corresponding grade shown in Table 2 (or higher alloyed filler metal when approved by thepurchaser) or shall conform to the chemical composition specified for the plate specification to which the material was ordered,or shall, subject to the purchaser approval, b
49、e a filler metal more highly alloyed than the base metal when needed for corrosionresistance or other properties. Use of a filler metal other than that listed in Table 2 shall be reported and the filler metal identifiedon the pipe manufacturers certificate of test. The composite analysis variations from Table 2 limits, that are caused by the dilutionof the weld metal with the base metal, shall be agreed upon between purchaser and manufacturer.6.3 A lot for product analysis shall consist of one heat.7. Mechani
