1、Designation: B637 121B637 15Standard Specification forPrecipitation-Hardening and Cold Worked Nickel Alloy Bars,Forgings, and Forging Stock for Moderate or HighTemperature Service1This standard is issued under the fixed designation B637; the number immediately following the designation indicates the
2、 year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.
3、 Department of Defense.1 NOTEVanadium content for UNS N07752 in Table 1 was corrected editorially in November 2012.1. Scope1.1 This specification2 covers hot- and cold-worked precipitation-hardenable nickel alloy rod, bar, forgings, and forging stockfor moderate or high temperature service (Table 1)
4、.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.3 This standard does not purport to address all of the safety concerns, if any,
5、associated with its use. It is the responsibilityof the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety DataSheet (MSDS)(SDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health
6、practices,and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt AlloysE8 Test Methods for Tension Testing of Metallic Materi
7、alsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE139 Test Methods for Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic MaterialsE1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys3. Termino
8、logy3.1 Definitions:3.1.1 bar, nmaterial of rectangular (flats), hexagonal, octagonal, or square solid section in straight lengths.3.1.2 rod, nmaterial of round solid section furnished in straight lengths.4. Ordering Information4.1 It is the responsibility of the purchaser to specify all requirement
9、s that are necessary for material ordered under thisspecification. Examples of such requirements include, but are not limited to, the following:4.1.1 Alloy (Table 1).4.1.2 Condition (temper or cold worked) (Tables 2 and 3 and 6.1).4.1.3 ShapeRod or bar (round, rectangle, square, hexagon, octagon).4.
10、1.3.1 Forging (sketch or drawing).4.1.4 Dimensions, including length.1 This specification is under the jurisdiction ofASTM Committee B02 on Nonferrous Metals andAlloys and is the direct responsibility of Subcommittee B02.07 on RefinedNickel and Cobalt and Their Alloys.Current edition approved May 1,
11、 2012Oct. 1, 2015. Published May 2012November 2015. Originally approved in 1970. Last previous edition addition approved in20112012 as B637 06 (2011).B637 121. DOI: 10.1520/B063712E01.10.1520/B0637-15.2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SB-637 in Sectio
12、n II of that Code.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM website.This document is not an ASTM stand
13、ard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases
14、 only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.1.5 Quantity (mass or number of pieces).4.1.6 Forging StockSpecify if material i
15、s stock for reforging.4.1.7 Finish.4.1.8 CertificationState if certification is required (Section 15).4.1.9 Samples for Product (Check) AnalysisWhether samples for product (check) analysis shall be furnished (9.2).4.1.10 Purchaser InspectionIf the purchaser wishes to witness tests or inspection of m
16、aterial at the place of manufacture, thepurchase order must so state indicating which tests or inspections are to be witnessed (Section 13).5. Chemical Composition5.1 The material shall conform to the requirements as to chemical composition prescribed in Table 1.5.2 If a product (check) analysis is
17、performed by the purchaser, the material shall conform to the product (check) analysisvariations prescribed in Specification B880.TABLE 1 Chemical RequirementsElement Composition Limits, %UNS N07022 UNS N07208UNS N07252(FormerlyGrade 689)UNS N07001(FormerlyGrade 685)UNS N07500(FormerlyGrade 684)UNS
18、N07750(FormerlyGrade 688)UNS N07718(FormerlyGrade 718)UNS N07022 UNS N07208UNS N07252(FormerlyGrade 689)UNS N07001(FormerlyGrade 685)UNS N07500(FormerlyGrade 684)UNS N07750(FormerlyGrade 688)UNS N07718(FormerlyGrade 718)Carbon 0.010 max 0.040.08 0.100.20 0.030.10 0.15 max 0.08 max 0.08 maxManganese
19、0.5 max 0.3 max 0.50 max 1.00 max 0.75 max 1.00 max 0.35 maxSilicon 0.08 max 0.15 max 0.50 max 0.75 max 0.75 max 0.50 max 0.35 maxPhosphorus 0.025 max 0.015 max 0.015 max 0.030 max 0.015 max . 0.015 maxSulfur 0.015 max 0.015 max 0.015 max 0.030 max 0.015 max 0.01 max 0.015 maxChromium 20.021.4 18.52
20、0.5 18.0020.00 18.0021.00 15.0020.00 14.0017.00 17.021.0Cobalt 1.0 max 9.011.0 9.0011.00 12.0015.00 13.0020.00 1.00 maxA 1.0 maxAMolybdenum 15.517.4 8.09.0 9.0010.50 3.505.00 3.005.00 . 2.803.30Columbium(Nb) + tantalum. . . . . 0.701.20 4.755.50Titanium . 1.902.30 2.252.75 2.753.25 2.503.25 2.252.75
21、 0.651.15Aluminum 0.5 max 1.381.65 0.751.25 1.201.60 2.503.25 0.401.00 0.200.80Zirconium . 0.020 max . 0.020.12 . . .Boron 0.006 max 0.0030.010 0.0030.01 0.0030.01 0.0030.01 . 0.006 maxIron 1.8 max 1.5 max 5.00 max 2.00 max 4.00 max 5.009.00 remainderBCopper 0.5 max 0.1 max . 0.50 max 0.15 max 0.50
22、max 0.30 maxNickel remainderB remainderB remainderB remainderB remainderB 70.00 min 50.055.0Tantalum 0.2 max 0.1 max . . . . .Columbium(Niobium). 0.2 max . . . . .Tungsten 0.8 max 0.5 max . . . . .UNS N07080(FormerlyGrade 80A)UNS N07752 UNS N09925 UNS N07725Carbon 0.10 max 0.0200.060 0.03 max 0.03 m
23、axManganese 1.00 max 1.00 max 1.0 max 0.35 maxSilicon 1.00 max 0.50 max 0.5 max 0.20 maxPhosphorus . 0.008 max 0.03 max 0.015 maxSulfur 0.015 max 0.003 max 0.03 max 0.010 maxChromium 18.0021.00 14.5017.00 19.522.5 19.0022.50Chromium 18.0021.00 14.5017.00 19.522.5 19.0022.50Cobalt . 0.050 max . .Moly
24、bdenum . . 2.53.5 7.009.50Columbium(Nb) + tantalum. 0.701.20 0.5 max (Nb only) 2.754.00Titanium 1.802.70 2.252.75 1.92.40 1.001.70Aluminum 0.501.80 0.401.00 0.10.5 0.35 maxBoron . 0.007 max . .Iron 3.00 max 5.009.00 22.0 min remainderBCopper . 0.50 max 1.53.0 .Zirconium . 0.050 max . .Vanadium . 0.1
25、0 max . .Vanadium . 0.10 max . .Nickel remainderB 70.0 min 42.046.0 55.059.0A If determined.B The element shall be determined arithmetically by difference. Chromium content was corrected editorially. Vanadium content was corrected editoriallyB637 152TABLE 2 Heat TreatmentAAlloy Recommended Annealing
26、 Treatment Recommended SolutionTreatment Recommended StabilizingTreatment Precipitation Hardening TreatmentN07022B Type 1 . 1800 to 2000F (982 to1093C), hold 12 h/in.,5 minutes minimum,rapid air cool orwater quench.N07022B Type 1A or1B. 1800 to 2100F (982 to1149C), hold 12 h/in.,5 minutes minimum,ra
27、pid air cool orwater quench.N07022C Type 2 . 1800 to 2000F (982 to1093C), hold 12 h/in.,5 minutes minimum,rapid air cool orwater quench. 1125 25F (605 14C), hold 10 h, aircoolBN07022C Type 2 . 1800 to 2100F (982 to1149C),hold 12 h/in.,5 minutes minimum,rapid air cool orwater quench. 1125 25F (605 14
28、C), hold 10 h, aircoolBN07022 Type 3 . 1800 to 2000F (982 to1093C), hold 12 h/in.,5 minutes minimum,rapid air cool orwater quench. 1300 25F (705 14C), hold 16 h, furnacecool to 1125 25F (605 14C), hold 32 h,air coolN07022 Type 3 . 1800 to 2100F (982 to1149C), hold 12 h/in.,5 minutes minimum,rapid ai
29、r cool orwater quench. 1300 25F (705 14C), hold 16 h, furnacecool to 1125 25F (605 14C), hold 32 h,air coolN07208 . 2000 to 2125F (1093 to1163C), hold 12 h/in.,5 to 10 minutesminimum,water quench orrapid air cool. 1850 25F (1010 14C), hold 2 h, air cool,followed by 1450 25F (788 14C), hold 8h, air c
30、oolN07252 . 1950 25F (1066 14C), hold 4 h, air cool. 1400 25F (760 14C), hold 15 h, air coolor furnace coolN07001 . 1825 to 1900F (996 to1038C), hold 4 h, oil orwater quench1550 25F (843 14C), hold 4 h, air cool1400 25F (760 14C), hold 16 h, air coolor furnace coolN07500 2150 25F (1177 14C), hold 2
31、h, air cool(bars only)1975 25F (1080 14C), hold 4 h, air cool1550 25F (843 14C), hold 24 h, air cool1400 25F (760 14C), hold 16 h, air coolor furnace coolN07750 Type 1(Service above1100F) (593C). 2100 25F (1149 14C), hold 2 to 4 h, aircool1550 25F (843 14C), hold 24 h, air cool1300 25F (704 14C), ho
32、ld 20 h, air coolor furnace coolN07750 Type 2(Service up to1100F) (593C). 1800 25F (982 14C), hold 12 h min,cool at rate equivalent toair cool or faster. 1350 25F (732 14C), hold 8 h, furnacecool to 1150 25F (62 1 14C), hold untiltotal precipitation heat treatmenthas reached 18 h, air coolN07750 Typ
33、e 3 . 1975 2050F (1079 1121C), hold 1 to 2 h,air cool. 1300 25F (704 14C), hold 20 h, + 4 0h, air coolN07752 Type 1 . 1975 25F (1080 14C), hold 1 to 2 h,cool by water or oilquenching. 1320 25F (715 14C), hold 20 h, +2, 0h, air coolN07752 Type 2 . 1975 25F (1080 14C), hold 1 to 2 h,cool by water or o
34、ilquenching. 1400 25F (760 14C), hold 100 h, +4, 0h, air coolB637 1536. Mechanical Properties6.1 Unless otherwise specified, the material shall be supplied in the cold worked or solution treated condition, suitable forsubsequent age hardening.6.2 The cold worked or solution treated material shall be
35、 capable of meeting the mechanical property requirements of Table 3,and the stress rupture requirements of Table 4 (except alloys UNS N07022, N09925 and N07725), following the precipitationhardening treatment described in Table 2.6.3 When the material is to be supplied in the cold worked or solution
36、 treated plus aged condition, the requirements of Table3 and Table 4 (except alloys UNS N07022, N09925 and N07725) shall apply, with the precipitation hardening treatment of Table2, or as agreed upon between the purchaser and the manufacturer as part of the purchase contract.7. Dimensions and Permis
37、sible Variations7.1 Diameter, Thickness, or WidthThe permissible variations from the specified dimensions of cold-worked rod and bar shallbe as prescribed in Table 5, and of hot-worked rod and bar as prescribed in Table 6.7.1.1 Out of RoundCold-worked and hot-worked rod, all sizes, in straight lengt
38、hs, shall not be out-of-round by more than onehalf the total permissible variations in diameter shown in Table 5 and Table 6, except for hot-worked rod 12 in. (12.7 mm) andunder, which may be out-of-round by the total permissible variations in diameter shown in Table 6.7.1.2 CornersCold-worked bar s
39、hall have practically exact angles and sharp corners.7.1.3 Cut LengthsA specified length to which all rod and bar will be cut with a permissible variation of + 18 in. (3.18 mm),0 for sizes 8 in. (203 mm) and less in diameter or the distance between parallel surfaces. For larger sizes, the permissibl
40、e variationshall be + 14 in. (6.35 mm), 0.7.1.4 Straightness for Cold-Worked and Hot-Worked Rod and BarThe maximum curvature (depth of chord) shall not exceed0.050 in. multiplied by the length in feet (0.04 mm multiplied by the length in centimetres). Material under 12 in. (12.7 mm) indiameter or th
41、e distance between parallel surfaces shall be reasonably straight and free of sharp bends and kinks.7.1.5 For forgings, dimensions and tolerances shall be as specified on the order, sketch, or drawing.7.1.6 Dimensions and tolerances for forging stock shall be as agreed upon between the purchaser and
42、 the manufacturer.8. Workmanship, Finish, and Appearance8.1 The material shall be uniform in quality and condition, smooth, commercially straight or flat, and free of injuriousimperfections.9. Sampling9.1 LotDefinition:9.1.1 A lot for chemical analysis shall consist of one heat.9.1.2 Mechanical Prop
43、ertiesA lot for tension, hardness, and stress-rupture testing shall consist of all material from the sameheat, nominal diameter or thickness, or forging size, and condition (temper).TABLE 2 ContinuedAlloy Recommended Annealing Treatment Recommended SolutionTreatment Recommended StabilizingTreatment
44、Precipitation Hardening TreatmentN07718 . 1700 to 1850F (924 to1010C), hold 12 h min,cool at rate equivalent toair cool or faster. 1325 25F (718 14C), hold attemperature for 8 h, furnace cool to 1150 25F (621 14C), hold until totalprecipitation heat treatment time has reached18 h, air coolN07080 . 1
45、950 25F (1066 14C), hold 8 h, air cool1560 25F (849 14C), hold 24 h, air cool1290 25F (699 14C), hold 16 h, air coolN07725 . 1900 25F (1038 14C), hold 12 min, and4 h max, cool at rateequivalent to air cool. 1350 25F (732 14C), hold attemperature for 5 to 812 h, furnace cool to1150 25F (621 14C), hol
46、d attemperature for 5 to 8 12 h, air cool or fasterN09925 . 1825 to 1875F (996 to1024C), hold 12 min,and 4 h max, cool atrate equivalent to aircool or faster. 1365 25F (740 14C), hold attemperature for 6 to 9 hr, furnace cool to1150 25F (621 14C), hold until totalprecipitation heat treatment time ha
47、s reached18 h, air cool or fasterA The purchaser shall designate on the purchase order or inquiry any partial stage of heat treatment required on material to be shipped.B For solution treated + cold worked material only, when specified.C For solution treated + cold worked + precipitation hardened ma
48、terial only, when specified.Corrected editorially.B637 1549.1.2.1 For forging stock, a lot shall consist of one heat.9.1.2.2 Where material cannot be identified by heat, a lot shall consist of not more than 500 lb (227 kg) of material in the samesize and condition (temper).9.2 Test Material Selection:9.2.1 Chemical AnalysisRepresentative samples shall be taken during pouring or subsequent processing.9.2.1.1 Product (Check) Analysis shall be wholly the responsibility of the purchaser.9.2.2 Mechanical PropertiesSamples of
