1、Designation: B 474 03Standard Specification forElectric Fusion Welded Nickel and Nickel Alloy Pipe1This standard is issued under the fixed designation B 474; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision
2、. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers electric fusion welded pipesuitable for high-temperature or corrosive service as listed inTable 1. (Alth
3、ough no restrictions are placed on the sizes ofpipe that may be furnished under this specification, commercialpractice is commonly limited to sizes not less than 8 in. (203mm) nominal diameter.)1.2 Five classes of pipe are covered as follows:1.2.1 Class 1Pipe shall be double welded by processesemplo
4、ying filler metal in all passes and shall be completelyradiographed.1.2.2 Class 2Pipe shall be double welded by processesemploying filler metal in all passes. No radiography is re-quired.1.2.3 Class 3Pipe shall be single welded by processesemploying filler metal in all passes and shall be completely
5、radiographed.1.2.4 Class 4Same as Class 3 except that the weld passexposed to the inside pipe surface may be made without theaddition of filler metal.1.2.5 Class 5Pipe shall be double welded by processesemploying filler metal in all passes and shall be spot radio-graphed.1.3 The values stated in inc
6、h-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to become familiarwith all hazards i
7、ncluding those identified in the appropriateMaterial Safety Data Sheet for this product/material as pro-vided by the manufacturer, to establish appropriate safety andhealth practices, and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:A 37
8、0 Test Methods and Definitions for Mechanical Testingof Steel Products2B 127 Specification for Nickel-Copper Alloy (UNSN04400) Plate, Sheet, and Strip2B 162 Specification for Nickel Plate, Sheet, and Strip2B 168 Specification for Nickel-Chromium-Iron Alloys(UNS N06600, N06601, N06603, N06690, N06025
9、 andN06045) and Nickel-Chromium-Cobalt-Molybdenum Al-loy (UNS N06617) Plate, Sheet, and Strip2B 333 Specification for Nickel-Molybdenum Alloy Plate,Sheet, and Strip2B 424 Specification for Ni-Fe-Cr-Mo-Cu-Alloy (UNSN08825 and UNS N08221) Plate, Sheet, and Strip2B 435 Specification for UNS N06002, UNS
10、 N06230, UNSN12160, and UNS R30556 Plate, Sheet, and Strip2B 443 Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625) Plate, Sheet, and Strip2B 463 Specification for UNS N08020, UNS N08026, andUNS N08024 Alloy Plate, Sheet, and Strip3B 536 Specification for Nickel-Iron-Chromium-
11、Silicon Al-loys (UNS N08330 and N08332) Plate, Sheet, and Strip2B 575 Specification for Low-Carbon Nickel-Molybdenum-Chromium, Low-Carbon Nickel-Chromium-Molybdenum,Low-Carbon Nickel-Chromium-Molybdenum-Copper,Low-Carbon Nickel-Chromium-Molybdenum-Tantalum,and Low-Carbon Nickel-Chromium-Molybdenum-T
12、ungsten Alloy Plate, Sheet, and Strip2B 582 Specification for Nickel-Chromium-Iron-Molybdenum-Copper Alloy, Plate, Sheet, and Strip2B 880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel, Nickel Alloys andCobalt Alloys2B 899 Terminology Relating to Non-ferrous Meta
13、ls andAlloys2E 8 Test Methods for Tension Testing of Metallic Materials4E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications5E 1473 Test Method for Chemical Analysis of Nickel,Cobalt, and High Temperature Alloys61This specification is under the jurisdic
14、tion of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07on Refined Nickel and Cobalt and Their Alloys.Current edition approved March 10, 2003. Published May 2003. Originallyapproved in 1968. Last previous edition approved in 1999 as B 474 99.*
15、New designation established in accordance with ASTM E 527 and SAE J 1086,Practice for Numbering Metals and Alloys (UNS).2Annual Book of ASTM Standards, Vol 01.03.3Annual Book of ASTM Standards, Vol 02.04.4Annual Book of ASTM Standards, Vol 03.01.5Annual Book of ASTM Standards, Vol 14.02.6Annual Book
16、 of ASTM Standards, Vol 03.06.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.2 American Society of Mechanical Engineers Standard:ASME Boiler and Pressure Vessel Code, Section IX andSection VIII, Div. 172.3 American Welding Society
17、 Standards:A5.4 Corrosion-Resisting Chromium and Chromium NickelSteel Covered Welding Electrodes8A5.9 Corrosion-Resisting Chromium and Chromium NickelSteel Welding Rods and Bare Electrodes8A5.11 Nickel and Nickel Alloy Covered Welded Elec-trodes8A5.14 Nickel and Nickel Alloy Bare Welding Rods andEle
18、ctrodes83. Terminology3.1 Terms defined in Terminology B 899 shall apply unlessotherwise defined in this standard.4. Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification. Examples of such requirem
19、ents include, but arenot limited to, the following:4.1.1 Quantity (feet 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.
20、7 ASTM designation and year of issue,4.1.8 Authorization for repair of plate defects by weldingwithout 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
21、shall conform to therequirements of the appropriate raw material specificationlisted in 2.1.5.2 Welding:5.2.1 The joints shall be full penetration double-welded orsingle-welded butt joints employing fusion welding processesas defined under “Definitions,” ASME Boiler and PressureVessel Code, Section
22、IX. This specification makes no provisionfor any difference in weld quality requirements regardless ofthe weld joint type employed (single or double) in making theweld. Where backing rings or strips are employed, the ring orstrip material shall be of the same P-number (Table QW-422 ofSection IX) as
23、the plate being joined. Backing rings or stripsshall be completely removed after welding, prior to anyrequired radiography, and the exposed weld surface shall beexamined visually for conformance to the requirements of5.2.3. Welds made by procedures employing backing strips orrings which remain in pl
24、ace are prohibited. Welding proceduresand welding operators shall be qualified in accordance withASME Boiler and Pressure Vessel Code, Section IX.5.2.2 Except as provided in 5.2.2.1 and 5.2.2.2, welds shallbe made in their entirety by processes involving the depositionof filler metal.5.2.2.1 For Cla
25、ss 4 pipe employing multiple passes, theroot-pass may be completed without the addition of fillermetal.5.2.2.2 For Class 4 pipe, the weld surface exposed inside thepipe may result from a single pass made from the inside of thepipe without the addition of filler metal.7Available from American Society
26、 of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990.8Available from the American Welding Society, 2501 N.W. Seventh St., Miami,FL 33125.TABLE 1 Recommended Heat TreatmentAlloy UNS DesignationPWHTA,BDeg. F. (Deg. C)Quench200 (Ni) N02200 1650-1700
27、(900 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 (1177)CRapid Air/waterC22D(Low C-Ni-Mo-Cr) N06022 2050-(1120)CRapid Air/waterG30D(Ni-Cr-Fe-Mo-Cu) N06030 2150 (1177)CRapid Air/wat
28、erC2000D(Ni-Cr-Mo-Cu) N06200 2075-2125 (1135-1163)BRapid Air/water230D(Ni-Cr-W-Mo) N06230 2150-2250 (1177-1232)BRapid Air/water600 (Ni-Cr-Fe) N06600 1800-1850 (983 to 1010) Rapid Air/water601 (Ni-Cr-Fe-Al) N06601 1600-1650 (874 to 900)ERapid Air/water625 (Ni-Cr-Mo-Cb) Grade 1 N06625 1600 (871)CRapid
29、 Air/water625 (Ni-Cr-Mo-Cb) Grade 2 N06625 2000 (1093)CRapid Air/waterG3D(Ni-Cr-Fe-Mo-Cu) N06985 2100-2150 (1147 to 1177)BRapid 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
30、 Air/water825 (Ni-Fe-Cr-Mo-Cu) N08825 1700-1800 (930 to 980)ERapid Air/waterC276 (Low C-Ni-Mo-Cr) N10276 2050 (1121)CRapid Air/waterB2 (Ni-Mo) N10665 1950 (1065)CRapid Air/waterB3D(Ni-Mo) N10675 1950 (1065)CRapid Air/waterARecommended temperaturesDifferent temperatures may be selected by either the
31、purchaser or the manufacturer.BSet temperatures, 625F (614C).CMinimum set temperature.DRegistered Trademark of Haynes International.EHeat treatment is highly dependent on intended service temperature consult material manufacturer for specific heat treatments for end use temperature.B4740325.2.2.3 Al
32、l single-welded pipe shall be completely radio-graphed5.2.3 The weld surface on either side of the weld shall beflush with the base plate or shall have a reasonably uniformcrown, not to exceed18 in. (3.2 mm). Any weld reinforcementmay be removed at the manufacturers option or by agreementbetween the
33、 manufacturer and purchaser. The contour of thereinforcement shall be reasonably smooth and free of irregu-larities. The deposited metal shall be fused uniformly into theplate surface. No concavity of contour is permitted unless theresulting thickness of weld metal is equal to or greater than themin
34、imum thickness of the adjacent base metal.5.2.4 Weld defects shall be repaired by removal to soundmetal and rewelding. Subsequent heat treatment and inspection(that is, visual, radiographic and dye penetrant) shall be asrequired on the original welds.5.3 Heat Treatment:5.3.1 The pipe furnished under
35、 this specification, shall beheat treated in accordance with Table 1. See Table 1 forrecommended practice.5.3.2 The purchase order shall specify one of the followingconditions if the heat-treated condition specified by Table 1 isnot desired by the purchaser.5.3.2.1 A final heat treatment other than
36、that specified inTable 1Each pipe supplied under this requirement shall bestenciled with the final heat-treatment temperature in degreesFahrenheit or degrees Celsius after the suffix “HT.”5.3.2.2 No final heat-treatment of pipe fabricated of platethat has been heat treated at temperatures required b
37、y thisspecificationEach pipe supplied under this requirement shallbe stenciled with the suffix “HT-O.”5.3.2.3 No final heat-treatment of pipe fabricated of platethat has not been heat treated at temperatures required by thisspecificationEach pipe supplied under this requirement shallbe stenciled wit
38、h the suffix “HT-SO.”6. Chemical Composition6.1 Product Analysis of PlateThe pipe manufacturer shallmake an analysis of each mill heat of plate material. Theproduct analysis so determined shall meet the requirements ofthe plate specification to which the material was ordered.6.2 Product Analysis of
39、WeldThe pipe manufacturer shallmake an analysis of the finished deposited weld material fromeach lot of pipe. The chemical composition of the weld depositshall fall within the chemical composition limits of theapplicable AWS filler metal specification for the correspondinggrade shown in Table 2 (or
40、higher alloyed filler metal whenapproved by the purchaser) or shall conform to the chemicalcomposition specified for the plate specification to which thematerial was ordered, or shall, subject to the purchaser ap-proval, be a filler metal more highly alloyed than the basemetal when needed for corros
41、ion resistance or other properties.Use of a filler metal other than that listed in Table 2 shall bereported and the filler metal identified on the pipe manufactur-ers certificate of test. The composite analysis variations fromTable 2 limits, that are caused by the dilution of the weld metalwith the
42、base metal, shall be agreed upon between purchaserand manufacturer.TABLE 2 Pipe and Weld Filler MaterialsFiller Metal Clsssification andUNS DesignationAforApplicable AWS SpecificationA5.11 A5.9 A5.14AlloyUNSDesignationASTM PlateSpecificationClass UNS Class UNS Class UNS200 N02200 B162 ENi-1 W82141 .
43、 . ERNi-1 N02061201 N02201 B162 . . . . . .400 N04400 B127 ENiCu-7 W84190 . . ERNiCu-7 N04060X N06002 B435 ENiCrMo-2 W86002 . . ERNiCrMo-2 N06002C22BN06022 B575 ENiCrMo-10 W86022 . . ERNiCrMo-10 N06022C2000BN06200 B575 ENiCrMo-17CW86200C. . ERNiCrMo-17CN06200CC30BN06030 B582 ENiCrMo-11 W86030 . . ER
44、NiCrMo-11 N06030230BN06230 B435 ENiCrWMo-1CW86231C. . ERNiCrWMo-1 N06231600 N06600 B168 N/AD. . . ERNiCr-3 N06082601 N06601 B168E. . .E625 N06625 B443 ENiCrMo-3 W86112 . . ERNiCrMo-3 N06625G3 N06985 B582 ENiCrMo-9 W86985 . . ERNiCrMo-9 N0698520CB N08020 B463 . . ER320 N08021 . . . . . . ER320LR N080
45、22 . .Cr-Ni-Fe-Mo-Cu N08024 B463 N/AD. . . . .20Mo6FN08026 B463 ENiCrMo-3 W86112 . . ERNiCrMo-3 N06625825 N08825 B424 ENiCrMo-3GW86112 . . ERNiCrMo-3GN06625C276 N10276 B575 ENiCrMo-4 W80276 . . ERNiCrMo-4 N10276B2 N10665 B333 ENiMo-7 W80665 . . ERNiMo-7 N10665B3BN10675 B333 ENiMo-10 W80875 . . ERNiM
46、o-10 N10675ANew designation established in accordance with ASTM E527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).BRegistered Trademark of Haynes International.CApproved by AWS but not published.DNo AWS classification existed at the time of this writingconsult material manufacturer
47、 for recommended filler metal.EFiller metal used is highly dependent on intended service temperatureconsult material manufacturer for specific filler metal for end use temperature.FRegistered Trademark of Carpenter Steel.GRecommended filler metalthis material is highly dependent on intended service
48、temperature for best filler metal selectionconsult material manufacturer for specificfiller metal given the end use temperature.B4740336.3 A lot for product analysis shall consist of one heat.7. Mechanical and Other Properties7.1 Mechanical Properties:7.1.1 The mechanical properties of the plate sha
49、ll be inaccordance with the plate specification to which it was ordered.Tension tests made by the plate manufacturer shall qualify theplate material.7.1.2 Transverse tension tests taken across the welded jointshall have the same tensile property requirements as thosespecified for the plate.7.1.3 A lot for mechanical testing shall consist of allmaterial from the same heat (which may include more that oneplate/slab/lot number), nominal size (excepting length) andheat treatment. When final heat treatment is in a batch-typefurnace, a lot shall include only those pip
