1、Designation: B462 101Standard Specification forForged or Rolled UNS N06030, UNS N06022, UNS N06035,UNS N06200, UNS N06059, UNS N10362, UNS N06686, UNSN08020, UNS N08024, UNS N08026, UNS N08367, UNSN10276, UNS N10665, UNS N10675, UNS N10629, UNSN08031, UNS N06045, UNS N06025, UNS R20033 Alloy PipeFla
2、nges, Forged Fittings, and Valves and Parts forCorrosive High-Temperature Service1This standard is issued under the fixed designation B462; 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 pare
3、ntheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEThe chromium range for UNS N06022 in Table 1 was corrected editorially in January 2011.1. Scope*1.1 This specification2covers forged or rolled UNSN06030, UN
4、S N06035, UNS N06022, UNS N06200, UNSN06059, UNS N10362, UNS N06686, UNS N08020, UNSN08024, UNS N08026, UNS N08367, UNS N10276, UNSN10665, UNS N10675, UNS N10629, UNS N08031, UNSN06045, UNS N06025, and UNS R20033* pipe flanges,forged fittings, and valves and parts intended for corrosivehigh-temperat
5、ure service.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,
6、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 Sheet (MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafety and health
7、practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsB166 Specification for Nickel-Chromium-Iron Alloys(UNS N06600, N06601, N06603,
8、N06690, N06693,N06025, N06045, and N06696)* and Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617) Rod, Bar, andWireB335 Specification for Nickel-Molybdenum Alloy RodB408 Specification for Nickel-Iron-Chromium Alloy Rodand BarB472 Specification for Nickel Alloy Billets and Bars forReforgingB473 Sp
9、ecification for UNS N08020, UNS N08024, andUNS N08026 Nickel Alloy Bar and WireB574 Specification for Low-Carbon Nickel-Chromium-Molybdenum, Low-Carbon Nickel-Molybdenum-Chromium, Low-Carbon Nickel-Molybdenum-Chromium-Tantalum, Low-Carbon Nickel-Chromium-Molybdenum-Copper, and Low-Carbon Nickel-Chro
10、mium-Molybdenum-Tungsten Alloy RodB581 Specification for Nickel-Chromium-Iron-Molybdenum-Copper Alloy RodB649 Specification for Ni-Fe-Cr-Mo-Cu-N Low-CarbonAlloys (UNS N08925, UNS N08031, UNS N08354, and1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys
11、 and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Oct. 1, 2010. Published October 2010. Originallyapproved in 1967. Last previous edition approved in 2006 as B462 06. DOI:10.1520/B0462-10E01.2For ASME Boiler and Pressure Ve
12、ssel Code applications see related Specifi-cation SB-462 in Section II of that Code.* New designation established in accordance with Practice E527 and SAE J1086,Practice for Numbering Metals and Alloys (UNS).3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Custome
13、r Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, P
14、A 19428-2959, United States.UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNSR20033) Bar and Wire, and Ni-Cr-Fe-Mo-N Alloy (UNSN08936) WireB691 Specification for Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367)Rod, Bar, and WireB880 Specification for General Requirements for Chemic
15、alCheck Analysis Limits for Nickel, Nickel Alloys andCobalt AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)E1473 Test Methods for Chemical Analysis of Nickel,Cobalt, and High-Temperature AlloysE1916 Gui
16、de for Identification and/or Segregation of MixedLots 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,Fl
17、anges, and Unions53. Terminology3.1 Definitions 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
18、 the purchaser to specify allrequirements that 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 (
19、5.2.4),4.1.4 Forging sectioning, if required (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 t
20、he attached drawing and SpecificationB462.5. 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 Prac
21、tice:5.2.1 Material for forging shall consist of a billet, bar, orforging produced in accordance with Specifications B166,B335, B408, B 462, B472, B473, B574, B581, B649,orB691.5.2.2 The material shall be forged by hammering, pressing,rolling, extruding, or upsetting; it shall be brought as nearly a
22、spracticable to the finished shape 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
23、to show flow lines and the condition 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 appro
24、val of the purchaser a sketch showing 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 N
25、06035, UNS N08026, UNSN06030, UNS N06200, UNS N10362, UNS N10276, UNSN10665, UNS N10675, and UNS R20033 alloys shall befurnished in the solution annealed condition.NOTE 2The recommended annealing temperatures all followed bywater quenching or rapidly cooling by other means are: UNSN060302125 to 2175
26、F (1163 to 1191C), UNS N060222025 to 2075F(1107 to 1135C), UNS N0603520252075F (11071135C), UNSN062002075 to 2125F (1135 to 1163C), UNS N060592025 to 2125F(1107 to 1163C), UNS N103622075 to 2125F (1135 to 1163C), UNSN066862125 to 2225F (1163 to 1218C), UNS N080201700 to 1850F(927 to 1010C), UNS N080
27、241925 to 1975F (1052 to 1079C), UNSN080262050 to 2200F (1121 to 1204C), UNS N102762025 to 2075F(1107 to 1135C), UNS N106651925 to 2000F (1052 to 1093C), UNSN106751925 to 2000F (1052 to 1093C), UNS N106291925 to 2000F(1052 to 1093C), UNS N080312050 to 2160F (1121 to 1182C) UNSN060452125 to 2190F (11
28、63 to 1199C), UNS N060252175 to 2240F(1191 to 1227C), and UNS R200332010 to 2150F (1100 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
29、 rapidly cooling, by other means.5.3.3 Heat treatment may be performed before machining.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
30、 to the requirementsspecified in Table 1 subject to the permissible tolerances inSpecification B880.7. Mechanical Properties and Other Requirements7.1 Mechanical PropertiesThe material shall conform tothe requirements as to mechanical properties prescribed inTable 2 at room temperature.4Available fr
31、om American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5Available from Manufacturers Standardization Society of the Valve and FittingsIndustry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http:/www.mss-.B462 1012TABLE 1 Chemical Requireme
32、ntsElementComposition, %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 0.50 1.00 0.50Nickel 33.0037.20 32.0038.0
33、0 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 0.150.35 . .Nitrogen 0.100.16 . . 0.18 to 0.25 0.
34、350.60Iron RemainderARemainderARemainderARemainderARemainderAElementComposition, %UNS N06030 UNS N06022 UNS N06200 UNS N10276 UNS10665 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 0.025 0.04 0.04 0.030Sulphur, max 0.02 0.02
35、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 22.024.0 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 27.0-32.0Copper 1.0-2.4 . 0.3-1.9 . . 0.20Columbi
36、um (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 . . . . . 0.2Zirconium, max . . . . . 0.10Columbium (Nb) . . .
37、. . 0.20 maxTantalum . . . . . 0.20 maxNickel+ Molybdenum. . . . . 94.0-98.0Aluminum, max . . 0.50 . . 0.50ElementComposition, %UNS N06059 UNS N10362 UNS N06686 UNS N08031 UNS N06045 USN N06025 USN N10629 USN N06035Carbon, max 0.010 0.010 0.010 0.015 0.05-0.12 0.15-0.25 0.01 0.050Manganese, max 0.5
38、0.60 0.75 2.0 1.0 0.15 1.5 0.50Phosphorous, max 0.015 0.025 0.04 0.020 0.02 0.02 0.040 0.030Sulphur, max 0.010 0.010 0.02 0.010 0.010 0.010 0.010 0.015Silicon, max 0.10 0.08 0.08 0.3 2.5-3.0 0.5 0.05 0.60Nickel, RemainderARemainderARemainderA30.0-32.0 45.0 min RemainderARemainderARemainderAChromium
39、22.0-24.0 13.8-15.6 19.0-23.0 26.0-28.0 26.0-29.0 24.0-26.0 0.5-1.5 32.25-34.25Molybdenum 15.0-16.5 21.5-23.0 15.0-17.0 6.0-7.0 . . 26.0-30.0 7.60-9.00Copper 0.50 max . . 1.0-1.4 0.3 max 0.1 max 0.5 0.30 maxYttrium . . . . . 0.05-0.12 . .Nitrogen . . 5.0 max RemainderA. . . .Iron 1.5 max 1.25 max .
40、. 21.0-25.0 8.011.0 1.0-6.0 2.00 maxCobalt, max 0.3 . 3.0-4.4 . . . 2.5 1.00Tungsten . . . . . . . 0.60 maxVanadium, max . . 0.02-0.25 . . . . 0.20Titanium, max . . . . . 0.1-0.2 . .Zirconium, max . . . . . 0.01-0.10 . .Columbium (Nb) . . . . . . . .Tantalum . . . . . . . .Cerium . . . . 0.03-0.09 .
41、 . .Aluminum, max 0.1-0.4 0.50 . . . 1.8-2.4 0.1-1.5 0.40AShall be determined arithmetically by difference. Corrected editorially.B462 10137.2 Hydrostatic TestsAfter machining, valve bodies, fit-tings, and other pressure-containing parts shall be tested to thehydrostatic shell-test pressures prescri
42、bed 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 ratings shall be testedto such pressures as may be agreed upon be
43、tween 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 machinedby others. The fabricator of finished forged parts is not required
44、to 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 testrequired in 7.2
45、.7.3 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 the macroetch test, all forgings from that heat shal
46、l 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 of injurious defects.10. Sampling10.1 LotDefinition:
47、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 during pouring or subsequent processing.10.2.1.1 Check
48、 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 Chemical AnalysisOne test per lot.11.2 Mechanical Prope
49、rtiesOne 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 titled 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
