1、Designation: B 462 06Standard Specification forForged or Rolled UNS N06030, UNS N06022, UNS N06035,UNS N06200, UNS N06059, UNS N06686, UNS N08020, UNSN08024, UNS N08026, UNS N08367, UNS N10276, UNSN10665, UNS N10675, UNS N10629, UNS N08031, UNSN06045, UNS N06025, and UNS R20033 Alloy Pipe Flanges,Fo
2、rged Fittings, and Valves and Parts for Corrosive High-Temperature Service1This standard is issued under the fixed designation B 462; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parenthese
3、s indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification2covers forged or rolled UNSN06030, UNS N06035, UNS N06022, UNS N06200, UNSN06059, UNS N06686, UNS N08020, UNS N08024, UNSN08026, UNS N0
4、8367, UNS N10276, UNS N10665, UNSN10675, UNS N10629, UNS N08031, UNS N06045, UNSN06025, and UNS R20033* pipe flanges, forged fittings, andvalves and parts intended for corrosive high-temperature ser-vice.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in
5、 parentheses are forinformation only.1.3 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 including those identified in the appropriateMaterial Safety Data She
6、et (MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafety and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3A 262 Practices for Detecting Susceptibility to Intergranu-lar Att
7、ack in Austenitic Stainless SteelsB 166 Specification for Nickel-Chromium-Iron Alloys(UNS N06600, N06601, N06603, N06690, N06693,N06025, and N06045)* and Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617) Rod, Bar, and WireB 335 Specification for Nickel-Molybdenum Alloy RodB 408 Specification for
8、Nickel-Iron-Chromium Alloy Rodand BarB 472 Specification for Nickel Alloy Billets and Bars forReforgingB 473 Specification for UNS N08020, UNS N08024, andUNS N08026 Nickel Alloy Bar and WireB 574 Specification for Low-Carbon Nickel-Chromium-Molybdenum, Low-Carbon Nickel-Molybdenum-Chromium-Tantalum,
9、 Low-Carbon Nickel-Chromium-Molybdenum-Copper, and Low-Carbon Nickel-Chromium-Molybdenum-Tungsten Alloy RodB 581 Specification for Nickel-Chromium-Iron-Molybdenum-Copper Alloy RodB 649 Specification for Ni-Fe-Cr-Mo-Cu-N Low-CarbonAlloys (UNS N08925, UNS N08031, UNS N08354, andUNS N08926), and Cr-Ni-
10、Fe-N Low-Carbon Alloy (UNSR20033) Bar and Wire, and Ni-Cr-Fe-Mo-N Alloy (UNSN08936) WireB 691 Specification for Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367)Rod, Bar, and WireB 880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel, Nickel Alloys
11、 andCobalt AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE 527 Practice for Numbering Metals and Alloys (UNS)E 1473 Test Methods for Chemical Analysis of Nickel,Cobalt, and High-Temperature Alloys1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals
12、 and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved June 1, 2006. Published June 2006. Originallyapproved in 1967. Last previous edition approved in 2004 as B 462 04.2For ASME Boiler and Pressure Vessel Code applic
13、ations see related Specifi-cation SB-462 in Section II of that Code.* New designation established in accordance with Practice E 527 and SAEJ1086, Practice for Numbering Metals and Alloys (UNS).3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at se
14、rviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.E 1916 Guide for Identification and/or Segregation of
15、Mixed Lots of Metals2.2 ANSI Standard:B16.5 Steel Pipe Flanges and Flanged Fittings (for appli-cable alloy UNS N08020)42.3 Manufacturers Standardization Society of the Valveand Fittings Industry Standard:SP-25 Standard Marking System for Valves, Fittings,Flanges, and Unions53. Terminology3.1 Definit
16、ions of Terms Specific to This Standard:3.1.1 forgings, nthe term forgings as used in this specifi-cation shall be understood to cover one or all of the productsmentioned in 1.1, either forged or rolled.4. Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirements t
17、hat are necessary for material ordered under thisspecification. Examples of such requirements include, but arenot limited to, the following:4.1.1 Quantity (weight or number of pieces),4.1.2 Name of material or UNS number,4.1.3 Forging sketch when required (5.2.4),4.1.4 Forging sectioning, if require
18、d (5.2.3),4.1.5 ASTM designation and year of issue,4.1.6 Inspection (14.1),4.1.7 Supplementary requirements, if any, and4.1.8 If possible, the intended end use.NOTE 1A typical ordering description is as follows: 200 forgings,UNS N08020, in accordance with the attached drawing and SpecificationB 462.
19、5. Materials and Manufacture5.1 DiscardA sufficient discard shall be made from eachingot to secure freedom from injurious piping and unduesegregation. The material shall have a homogeneous structureas shown by the macroetch test in 7.3.5.2 Manufacturing Practice:5.2.1 Material for forging shall cons
20、ist of a billet, bar, orforging produced in accordance with Specifications B 166,B 335, B 408, B 462, B 472, B 473, B 574, B 581, B 649, orB 691.5.2.2 The material shall be forged by hammering, pressing,rolling, extruding, or upsetting; it shall be brought as nearly aspracticable to the finished sha
21、pe and size by hot working; andshall be so processed as to cause metal flow during thehot-working operation in the direction most favorable forresisting the stresses encountered in service.5.2.3 When specified in the order, a sample forging may besectioned and etched to show flow lines and the condi
22、tion asregards internal imperfections. In such cases, the question ofacceptable and unacceptable character of metal flow shall be asubject for agreement between the manufacturer and thepurchaser.5.2.4 When specified in the order, the manufacturer shallsubmit for approval of the purchaser a sketch sh
23、owing theshape of the rough forging before machining.5.3 Heat Treatment:5.3.1 The product of UNS N08020 alloy shall be furnishedin the stabilized-annealed condition. The product of UNSN08024 shall be furnished in the annealed condition. Theproduct of UNS N06022, UNS N06035, UNS N08026, UNSN06030, UN
24、S N06200, UNS N10276, UNS N10665, UNSN10675, and UNS R20033 alloys shall be furnished in thesolution annealed condition.NOTE 2The recommended annealing temperatures all followed bywater quenching or rapidly cooling by other means are: UNSN060302125 to 2175F (1163 to 1191C), UNS N060222025 to 2075F(1
25、107 to 1135C), UNS N0603520252075F (11071135C), UNSN062002075 to 2125F (1135 to 1163C), UNS N060592025 to 2125F(1107 to 1163C), UNS N066862125 to 2225F (1163 to 1218C), UNSN080201700 to 1850F (927 to 1010C), UNS N080241925 to 1975F(1052 to 1079C), UNS N080262050 to 2200F (1121 to 1204C), UNSN1027620
26、25 to 2075F (1107 to 1135C), UNS N106651925 to 2000F(1052 to 1093C), UNS N106751925 to 2000F (1052 to 1093C), UNSN106291925 to 2000F (1052 to 1093C), UNS N080312050 to 2160F(1121 to 1182C) UNS N060452125 to 2190F (1163 to 1199C), UNSN060252175 to 2240F (1191 to 1227C), and UNS R200332010 to2150F (11
27、00 to 1180C).5.3.2 Alloy N08367 shall be furnished in the solutionannealed condition.5.3.2.1 The recommended heat treatment shall consist ofheating to a minimum temperature of 2025F (1105C) andquenching in water, or rapidly cooling, by other means.5.3.3 Heat treatment may be performed before machini
28、ng.6. Chemical Composition6.1 The material shall conform to the requirements as tochemical composition prescribed in Table 1.6.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the requirementsspecified in Table 1 subject to the permissible tolerances inSpec
29、ification B 880.7. Mechanical Properties and Other Requirements7.1 Mechanical PropertiesThe material shall conform tothe requirements as to mechanical properties prescribed inTable 2 at room temperature.7.2 Hydrostatic TestsAfter machining, valve bodies, fit-tings, and other pressure-containing part
30、s shall be tested to thehydrostatic shell-test pressures prescribed in ANSI B16.5 forthe applicable alloy steel rating for which the forging isdesigned and shall show no leaks. Forgings ordered underthese specifications for working pressures other than thoselisted in the American National Standard r
31、atings shall be testedto such pressures as may be agreed upon between the manu-facturer and the purchaser.7.2.1 No hydrostatic test is required for welding neck orother flanges.7.2.2 The forging manufacturer is not required to performpressure tests on rough forgings that are to be finally machined4A
32、vailable from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.5Available from Manufacturers Standardization Society of the Valve and FittingsIndustry (MSS), 127 Park St., NE, Vienna, VA 22180-4602.B462062by others. The fabricator of finished forged parts is
33、 not requiredto pressure-test forgings that are designed to be pressurecontaining only after assembly by welding into a largerstructure. However, the manufacturer of such forgings isresponsible as required in accordance with 15.1 for thesatisfactory performance of the forgings under the final testre
34、quired in 7.2.TABLE 1 Chemical RequirementsElementComposition, %UNS N08026 UNS N08020 UNS N08024 UNS N08367 UNS R20033Carbon, max 0.03 0.07 0.03 0.030 0.015Manganese, max 1.00 2.00 1.00 2.00 2.0Phosphorus, max 0.03 0.045 0.035 0.040 0.02Sulfur, max 0.03 0.035 0.035 0.030 0.01Silicon, max 0.50 1.00 0
35、.50 1.00 0.50Nickel 33.0037.20 32.0038.00 35.0040.00 23.50 to 25.50 30.033.0Chromium 22.0026.00 19.0021.00 22.5025.00 20.00 to 22.00 31.035.0Molybdenum 5.006.70 2.003.00 3.505.00 6.00 to 7.00 0.502.0Copper 2.004.00 3.004.00 0.501.50 0.75 max 0.301.20Columbium (Nb) + tantalum . 8 3 carbon1.00 0.150.3
36、5 . .Nitrogen 0.100.16 . . 0.18 to 0.25 0.350.60Iron RemainderARemainderARemainderARemainderARemainderAElement Composition, %UNS N06030 UNS N06022 UNS N06200 UNS N10276 UNS N10665 UNS N10675Carbon, max 0.03 0.015 0.010 0.010 0.02 0.01Manganese, max 1.5 0.50 0.50 1.0 1.0 3.0Phosphorous, max 0.04 0.02
37、 0.025 0.04 0.04 0.030Sulfur, max 0.02 0.02 0.010 0.03 0.03 0.010Silicon, max 0.8 0.08 0.08 0.08 0.10 0.10Nickel RemainderARemainderARemainderARemainderARemainderARemainderAChromium 28.0-31.5 20.0-22.5 22.0-24.0 14.5-16.5 1.0 max 1.0-3.0Molybdenum 4.0-6.0 12.5-14.5 15.0-17.0 15.0-17.0 26.0-30.0 27.0
38、-32.0Copper 1.0-2.4 . 1.3-1.9 . . 0.20Columbium (Nb)+ tantalum0.30-1.50 . . . . .Nitrogen . . . . . .Iron 13.0-17.0 2.0-6.0 3.0 max 4.0-7.0 2.0 max 1.0-3.0Cobalt, max 5.0 2.5 2.0 2.5 1.0 3.0Tungsten 1.5-4.0 2.5-3.5 . 3.0-4.5 . 3.0 maxVanadium, max . 0.35 . 0.35 . 0.20Titanium, max . . . . . 0.2Zirco
39、nium, max . . . . . 0.10Columbium (Nb) . . . . . 0.20 maxTantalum . . . . . 0.20 maxNickel +Molybdenum. . . . . 94.0-98.0Aluminum, max . . 0.50 . . 0.50Element Composition, %UNS N06059 UNS N06686 UNS N08031 UNS N06045 UNS N06025 UNS N10629 UNS N06035Carbon, max 0.010 0.010 0.015 0.05-0.12 0.15-0.25
40、0.01 0.050Manganese, max 0.5 0.75 2.0 1.0 0.15 1.5 0.50Phosphorous, max 0.015 0.04 0.020 0.02 0.02 0.040 0.030Sulfur, max 0.010 0.02 0.010 0.010 0.010 0.010 0.015Silicon, max 0.10 0.08 0.3 2.5-3.0 0.5 0.05 0.60Nickel RemainderARemainderA30.0-32.0 45.0 min RemainderARemainderARemainderAChromium 22.0-
41、24.0 19.0-23.0 26.0-28.0 26.0-29.0 24.0-26.0 0.5-1.5 32.2534.25Molybdenum 15.0-16.5 15.0-17.0 6.0-7.0 . . 26.0-30.0 7.609.00Copper 0.50 max . 1.0-1.4 0.3 max 0.1 max 0.5 0.30 maxYttrium . . . . 0.05-0.12 . .Nitrogen . 0.15-0.25 . . .Iron 1.5 max 5.0 max RemainderA21.025.0 8.011.0 1.0-6.0 2.00 maxCob
42、alt, max 0.3 . . . . 2.5 1.00Tungsten . 3.04.4 . . . . 0.60 maxVanadium, max . . . . . . 0.20Titanium, max . 0.020.25 . . 0.1-0.2 . .Zirconium, max . . . . 0.01-0.10 . .Columbium (Nb) . . . . . . .Tantalum . . . . . . .Cerium . . . 0.03-0.09 . . .Aluminum, max 0.1-0.4 . . . 1.8-2.4 0.10.5 0.40AShall
43、 be determined arithmetically by difference.B4620637.3 Macroetch Tests Etching of tests shall show soundand reasonably uniform material, free of injurious laminations,cracks, segregations, and similar objectionable defects. If, onsuccessive tests, 10 % of any heat fails to pass the requirementsof th
44、e macroetch test, all forgings from that heat shall berejected.8. Dimensions and Permissible Variations8.1 The forgings shall conform to the sizes and shapesspecified by the purchaser.9. Workmanship, Finish, and Appearance9.1 The forgings shall be uniform in quality and condition,and shall be free o
45、f injurious defects.10. Sampling10.1 LotDefinition:10.1.1 A lot for chemical analysis shall consist of one heat.10.1.2 A lot for mechanical properties shall consist of eachheat in each heat-treatment charge.10.2 Test Material Selection:10.2.1 Chemical AnalysisRepresentative samples shall betaken dur
46、ing pouring or subsequent processing.10.2.1.1 Check analysis, shall be wholly the responsibilityof the purchaser.10.2.2 Mechanical PropertiesSamples of the material toprovide test specimens shall be taken from such locations ineach lot as to be representative of that lot.11. Number of Tests11.1 Chem
47、ical AnalysisOne test per lot.11.2 Mechanical PropertiesOne test per lot.12. Specimen Preparation12.1 The tension test specimens taken from the forgings,billets, or bars shall be machined to the form and dimensions ofthe standard 2-in. (50.8-mm) gage length tension test specimenshown in the figure t
48、itled Standard 0.500 in. Round TensionTest Specimen with 2 in. Gage Length and Examples ofSmall-Size Specimens Proportional to the Standard Specimenof Test Methods E8, except as specified in 12.2.12.2 In the case of small sections that will not permit takingthe standard test specimen specified in 12
49、.1, the tension testspecimen shall be as large as feasible and its dimensions shallbe proportional to those shown in the figure titled Standard0.500 in. Round Tension Test Specimen with 2 in. Gage Lengthand Examples of Small-Size Specimens Proportional to theStandard Specimen of Test Methods E8. The gage length formeasuring elongation shall be four times the diameter of thespecimen.12.3 For the purpose of tests, the necessary extra forgings ortest bars shall be provided. The test specimen,
