1、Designation: B462 15Standard Specification forForged or Rolled UNS N06030, UNS N06022, UNS N06035,UNS N06200, UNS N06059, UNS N10362, UNS N06686, UNSN08020, UNS N08367, UNS N10276, UNS N10665, UNSN10675, UNS N10629, UNS N08031, UNS N06045, UNSN06025, UNS R20033 Alloy Pipe Flanges, Forged Fittings,an
2、d Valves and Parts for Corrosive High-TemperatureService1This 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 parentheses indicates the yea
3、r of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification2covers forged or rolled UNSN06030, UNS N06035, UNS N06022, UNS N06200, UNSN06059, UNS N10362, UNS N06686, UNS N08020, UNSN08367, UNS N10276, UNS N10665, U
4、NS N10675, UNSN10629, UNS N08031, UNS N06045, UNS N06025, and UNSR20033* pipe flanges, forged fittings, and valves and partsintended for corrosive high-temperature service.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconvers
5、ions 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, if any, associated with its use. It is theresponsibility of the user of this standard to become familiarwith all hazards including those ide
6、ntified in the appropriateSafety Data Sheet (SDS) for this product/material as providedby the manufacturer, to establish appropriate safety and healthpractices, and determine the applicability of regulatory limi-tations prior to use.2. Referenced Documents2.1 ASTM Standards:3A262 Practices for Detec
7、ting Susceptibility to IntergranularAttack in 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 N0667
8、4) 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 Specification for UNS N08020, UNS N08024, andUNS N08026 Nickel Alloy Bar and WireB574 Specification
9、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-Chromium-Molybdenum-Tungsten Alloy RodB581 Specification for Nickel-Chromium-Iron-Molybdenum-Copper Al
10、loy RodB649 Specification for Ni-Fe-Cr-Mo-Cu-N Low-Carbon Al-loys (UNS N08925, UNS N08031, UNS N08354, and1This 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 Their A
11、lloys.Current edition approved Oct. 1, 2015. Published October 2015. Originallyapproved in 1967. Last previous edition approved in 2010 as B462 102. DOI:10.1520/B0462-15.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-462 in Section II of that Code.* New designat
12、ion 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 the st
13、andards 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 States1UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNSR20033) Bar and Wire, a
14、nd 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 ChemicalCheck Analysis Limits for Nickel, Nickel Alloys andCobalt AlloysE8 Test Methods for Tension Testin
15、g 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 Guide for Identification of Mixed Lots of Metals2.2 ANSI Standard:B16.5 Steel Pipe Flanges and Flanged
16、Fittings (for appli-cable alloy UNS N08020)42.3 ManufacturersStandardization 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 a
17、s 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 that are necessary for material ordered under thisspecification. Examples of
18、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 required (5.2.3),4.1.5 ASTM designation and year of issue,4.1.6 Inspection (14.1),4
19、.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 SpecificationB462.5. Materials and Manufacture5.1 DiscardA sufficient discard shall be made fro
20、m 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 consist of a billet, bar, orforging produced in accordance with Specifications B1
21、66,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 aspracticable to the finished shape and size by hot working; andshall be so processed as to cause metal flow during theh
22、ot-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 condition asregards internal imperfections. In such cases, the question ofacceptable and una
23、cceptable 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 showing theshape of the rough forging before machining.5.3 Heat Treatment:5.3.1 The produ
24、ct of UNS N08020 alloy shall be furnishedin the stabilized-annealed condition. The product of UNSN06022, UNS N06035, UNS N06030, UNS N06200, UNSN10362, UNS N10276, UNS N10665, UNS N10675, and UNSR20033 alloys shall be furnished in the solution annealedcondition.NOTE 2The recommended annealing temper
25、atures 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 to 1163C), UNS N103622075 to 2125F (1135
26、to 1163C), UNSN066862125 to 2225F (1163 to 1218C), UNS N080201700 to 1850F(927 to 1010C), UNS N102762025 to 2075F (1107 to 1135C), UNSN106651925 to 2000F (1052 to 1093C), UNS N106751925 to 2000F(1052 to 1093C), UNS N106291925 to 2000F (1052 to 1093C), UNSN080312050 to 2160F (1121 to 1182C) UNS N0604
27、52125 to 2190F(1163 to 1199C), UNS N060252175 to 2240F (1191 to 1227C), andUNS 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) andquenc
28、hing 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 as tochemical composition prescribed in Table 1.4Available from American National Standards Institute (ANSI), 25 W. 43rd
29、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 152TABLE 1 Chemical RequirementsElementUNS N08020 UNS N08367 UNS R20033Carbon, max 0.07 0.
30、030 0.015Manganese, max 2.00 2.00 2.0Phosphorus, max 0.045 0.040 0.02Sulfur, max 0.035 0.030 0.01Silicon, max 1.00 1.00 0.50Nickel 32.0038.00 23.50 to 25.50 30.033.0Chromium 19.0021.00 20.00 to 22.00 31.035.0Molybdenum 2.003.00 6.00 to 7.00 0.502.0Copper 3.004.00 0.75 max 0.301.20Columbium (Nb)+ tan
31、talum8 carbon1.00 . .Nitrogen . 0.18 to 0.25 0.350.60Iron RemainderARemainderARemainderAElementComposition, %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
32、.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 26.0-30.0 27.0-32.0Copper 1.0-2.
33、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 . . . . . 0.2Zirconium, max . . . .
34、. 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 0.010 0.015 0.05-0.12 0.15-0.25 0.
35、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, RemainderARemainderARemainderA30.0-32.0 45.0 min RemainderARema
36、inderARemainderAChromium 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 . . . 0.15-0.25 . . . .Iron
37、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) . . . . . . . .Tantalum . . . .
38、. . . .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.B462 1536.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the requirementsspecified in Table 1 subject to the permis
39、sible 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 TestsAfter machining, valve bodies,fittings, and other pres
40、sure-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 working pressures other than thoselisted in the American
41、 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 to performpressure tests on rough forgings that are to b
42、e 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 forgings isresponsible as required in accordance with 15.1
43、 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 objectionable defects. If, onsuccessive tests, 10 % of any heat fa
44、ils 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, and Appearance9.1 The forgings shall be uniform in quality
45、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.10.2 Test Material Selection:10.2.1 Chemical AnalysisReprese
46、ntative 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 such locations ineach lot as to be representative of that
47、 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 t
48、est 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 that will not permit takingthe stand
49、ard test specimen specified in 12.1, 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 theTABLE 2 Mechanical Property RequirementsAlloyTensile Strength, min Yield Strength, min Elongation in2 in. or 50 mm,min, %Reduction of Area,min, %ksi MPa ksi MPaUNS N08020 80 551 35 241 30.0 50.0UNS N08367 95
