1、Designation: B462 102Standard 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 2011.2NOTEThe chemistry rows for UNS N06686 and UNS N08031 in Table 1 were
4、 corrected editorially in August 2013.1. Scope*1.1 This specification2covers forged or rolled UNSN06030, UNS 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 N06
5、025, and UNS R20033* pipe flanges,forged fittings, and valves and parts intended for corrosivehigh-temperature 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 on
6、lyand are not considered standard.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 Sheet
7、(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:3A262 Practices for Detecting Susceptibility to IntergranularAttack in
8、 Austenitic Stainless SteelsB166 Specification for Nickel-Chromium-Iron Alloys (UNSN06600, N06601, N06603, N06690, N06693, N06025,N06045, and N06696), Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617), and Nickel-Iron-Chromium-Tungsten Alloy (UNS N06674) Rod, Bar, andWireB335 Specification for Ni
9、ckel-Molybdenum Alloy RodB408 Specification for Nickel-Iron-Chromium Alloy Rodand BarB472 Specification for Nickel Alloy Billets and Bars forReforgingB473 Specification for UNS N08020, UNS N08024, andUNS N08026 Nickel Alloy Bar and WireB574 Specification for Low-Carbon Nickel-Chromium-Molybdenum, Lo
10、w-Carbon Nickel-Molybdenum-Chromium, Low-Carbon Nickel-Molybdenum-Chromium-Tantalum, Low-Carbon Nickel-Chromium-Molybdenum-Copper, and Low-Carbon Nickel-Chromium-Molybdenum-Tungsten Alloy RodB581 Specification for Nickel-Chromium-Iron-Molybdenum-Copper Alloy RodB649 Specification for Ni-Fe-Cr-Mo-Cu-
11、N Low-Carbon Al-loys (UNS N08925, UNS N08031, UNS N08354, andUNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and The
12、ir 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/B0462-10E02.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-462 in Section II of that Code.* New de
13、signation 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 Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to
14、the standards Document Summary page onthe ASTM website.*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 States1R20033) Bar and Wire, and Ni-Cr-Fe-Mo-N Alloy (UNSN08936) WireB691
15、 Specification for Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367)Rod, Bar, and WireB880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel, Nickel Alloys andCobalt AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE527 Practice for Nu
16、mbering Metals and Alloys in theUnified Numbering System (UNS)E1473 Test Methods for Chemical Analysis of Nickel,Cobalt, and High-Temperature AlloysE1916 Guide for Identification of Mixed Lots of Metals2.2 ANSI Standard:B16.5 Steel Pipe Flanges and Flanged Fittings (for appli-cable alloy UNS N08020)
17、42.3 Manufacturers Standardization Society of the Valve andFittings Industry Standard:SP-25 Standard Marking System for Valves, Fittings,Flanges, 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 und
18、erstood 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 that are necessary for material ordered under thisspecification. Examples of such requirements include, but arenot limi
19、ted 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 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, a
20、nd4.1.8 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 SpecificationB462.5. Materials and Manufacture5.1 DiscardA sufficient discard shall be made from eachingot to secure freedom from injurio
21、us 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 consist of a billet, bar, orforging produced in accordance with Specifications B166,B335, B408, B 462, B472, B473, B574, B5
22、81, B649,orB691.5.2.2 The material shall be forged by hammering, pressing,rolling, extruding, or upsetting; it shall be brought as nearly aspracticable to the finished shape and size by hot working; andshall be so processed as to cause metal flow during thehot-working operation in the direction most
23、 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 condition asregards internal imperfections. In such cases, the question ofacceptable and unacceptable character of metal flow shall be
24、 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 showing theshape of the rough forging before machining.5.3 Heat Treatment:5.3.1 The product of UNS N08020 alloy shall be furnishedi
25、n the stabilized-annealed condition. The product of UNSN08024 shall be furnished in the annealed condition. Theproduct of UNS N06022, UNS N06035, UNS N08026, UNSN06030, UNS N06200, UNS N10362, UNS N10276, UNSN10665, UNS N10675, and UNS R20033 alloys shall befurnished in the solution annealed conditi
26、on.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(1107 to 1135C), UNS N0603520252075F (11071135C), UNSN062002075 to 2125F (1135 to 1163C), UNS N060592025 to 2125F(1107
27、to 1163C), UNS N103622075 to 2125F (1135 to 1163C), UNSN066862125 to 2225F (1163 to 1218C), UNS N080201700 to 1850F(927 to 1010C), UNS N080241925 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), UNSN106
28、751925 to 2000F (1052 to 1093C), UNS N106291925 to 2000F(1052 to 1093C), UNS N080312050 to 2160F (1121 to 1182C) UNSN060452125 to 2190F (1163 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 c
29、ondition.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 machining.6. Chemical Composition6.1 The material shall conform to the requirements
30、 as tochemical composition prescribed in Table 1.4Available from 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
31、22180-4602, http:/www.mss-.B462 1022TABLE 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 0.01Si
32、licon, max 0.50 1.00 0.50 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
33、carbon1.00 0.150.35 . .Nitrogen 0.100.16 . . 0.18 to 0.25 0.350.60Iron 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
34、, max 0.04 0.02 0.025 0.04 0.04 0.030Sulphur, 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 22.024.0 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
35、 26.0-30.0 27.0-32.0Copper 1.0-2.4 . 0.3-1.9 . . 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 . .
36、 . . . 0.2Zirconium, max . . . . . 0.10Columbium (Nb) . . . . . 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
37、.010 0.015 0.05-0.12 0.15-0.25 0.01 0.050Manganese, max 0.5 0.60 0.75 2.0 1.0 0.15 1.5 0.50Phosphorous,max0.015 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, RemainderARemainderARemainderA
38、30.0-32.0 45.0 min RemainderARemainderARemainderAChromium 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 . .Nitr
39、ogen . . . 0.15-0.25 . . . .Iron 1.5 max 1.25 max 5.0 max RemainderA21.0-25.0 8.011.0 1.0-6.0 2.00 maxCobalt, max 0.3 . . . . . 2.5 1.00Tungsten . . 3.0-4.4 . . . . 0.60 maxVanadium, max . . . . . . . 0.20Titanium, max . . 0.02-0.25 . . 0.1-0.2 . .Zirconium, max . . . . . 0.01-0.10 . .Columbium (Nb)
40、 . . . . . . . .Tantalum . . . . . . . .Cerium . . . . 0.03-0.09 . . .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 10236.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to t
41、he 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.7.2 Hydrostatic Te
42、stsAfter machining, valve bodies,fittings, and other pressure-containing parts shall be tested tothe hydrostatic shell-test pressures prescribed in ANSI B16.5for the applicable alloy steel rating for which the forging isdesigned and shall show no leaks. Forgings ordered underthese specifications for
43、 working pressures other than thoselisted in the American National Standard ratings 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
44、 to performpressure tests on rough forgings that are to be finally machinedby others. The fabricator of finished forged parts is not requiredto pressure-test forgings that are designed to be pressurecontaining only after assembly by welding into a largerstructure. However, the manufacturer of such f
45、orgings isresponsible as required in accordance with 15.1 for thesatisfactory performance of the forgings under the final testrequired in 7.2.7.3 Macroetch TestsEtching of tests shall show sound andreasonably uniform material, free of injurious laminations,cracks, segregations, and similar objection
46、able defects. If, onsuccessive tests, 10 % of any heat fails to pass the requirementsof the 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, an
47、d Appearance9.1 The forgings shall be uniform in quality and condition,and shall be free of 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.
48、2 Test Material Selection:10.2.1 Chemical AnalysisRepresentative samples shall betaken during 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
49、such locations ineach lot as to be representative of that lot.11. Number of Tests11.1 Chemical 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 titled Standard 0.500 in. Round TensionTest Specimen with 2 in. Gage Length and Exam
