1、Designation: B691 02 (Reapproved 2013)B691 18Standard Specification forIron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 andUNS Alloy (UNS N08367) Rod, Bar, and Wire1This standard is issued under the fixed designation B691; the number immediately following the designation indicates the year oforigi
2、nal 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.1. Scope Scope*1.1 This specification covers iron-nickel-chromium-molybdenum
3、 alloysalloy (UNS N08366N08367)2 and UNS N08367)* inthe form of hot-finished and cold-finished rounds, squares, hexagons, octagons, and rectangles.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 ar
4、e provided for information only and are not considered standard.1.3 The following safety hazards caveat pertains only to the test methods portion, Section 12, of this specification: This standarddoes not purport to address all of the safety concerns, if any, associated with its use. It is the respon
5、sibility of the user of thisstandard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet(MSDS)(SDS) for this product/material as provided by the manufacturer, to establish appropriate safety safety, health, andhealthenvironmental practices, an
6、d determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommend
7、ations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt AlloysE8E8/E8M Test Methods for Tension Testing of M
8、etallic Materials Metric E0008_E0008ME29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE1473 Test Methods for Chemical Analysis of Nickel, Cobalt and High-Temperature Alloys3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 The ter
9、ms rod, bar, and wire, as used in this specification, are described as follows:3.1.2 bar, nhot-finished or cold-finished material of round, square, hexagon, octagon, or rectangular solid section in straightlengths.3.1.3 rod, nhot-finished material of round, square, hexagon, octagon, or rectangular s
10、olid section furnished in coils forsubsequent cold drawing into finished products.3.1.4 wire, ncold-finished material of round, square, hexagon, octagon, or rectangle solid section furnished in coils.4. Ordering Information4.1 It is the responsibility of the purchaser to specify all requirements tha
11、t are necessary for material ordered to thisspecification. Examples of such requirements include, but are not limited to, the following:4.1.1 Quantity (feet, metres,meters, or number of pieces),1 This specification is under the jurisdiction ofASTM Committee B02 on Nonferrous Metals andAlloys and is
12、the direct responsibility of Subcommittee B02.07 on RefinedNickel and Cobalt and Their Alloys.Current edition approved Feb. 1, 2013Nov. 1, 2018. Published February 2013January 2019. Originally approved in 1981. Last previous edition approved in 20072013 asB691 02 (2007).(2013). DOI: 10.1520/B0691-02
13、R13.10.1520/B0691-18.* New designation established in accordance with ASTM E527 and SAE J1086, Practice for Numbering Metals and Alloys.2 Designation established in accordance with ASTM E527 and SAE J1086, Practice for Numbering Metals and Alloys.3 For referencedASTM standards, visit theASTM website
14、, 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 standard and is intended only to provide the user of an ASTM standard an ind
15、ication 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 only the current versionof the standard as published by ASTM is to be
16、considered the official document.*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 States14.1.2 Form (rod, bar, wire),4.1.3 Name of material or UNS number,4.1.4 Finish (see 8.2),
17、4.1.5 Dimensions, including length,4.1.6 Certification, if required (Section 15),4.1.6 PurchasersPurchasers inspection, if required (Section 13),4.1.7 ASTM designation and year of issue, and4.1.8 Samples for product analysis, if required.5. Chemical Composition5.1 The material shall conform to the c
18、omposition limits specified in Table 1.5.2 If a product (check) analysis is made by the purchaser, the material shall conform to the permissible variations for product(check) analysis in Specification B880.6. Mechanical Properties and Other Requirements6.1 The material shall conform to the mechanica
19、l property requirements specified in Table 2.7. Dimensions and Permissible Variations7.1 Size:7.1.1 RoundsThe permissible variations in size of cold-finished round shall be as given in Table 3. For hot-finished round barsand rod, they shall be as given in Table 4.TABLE 1 Chemical RequirementsElement
20、CompositionLimits, %N08366N08367Carbon 0.035 max0.030 maxManganese 2.00 max2.00 maxSilicon 1.00 max1.00 maxPhosphorus 0.040 max0.040 maxSulfur 0.030 max0.030 maxChromium 20.00 to 22.0020.00 to 22.00Nickel 23.50 to 25.5023.50 to 25.50Molybdenum 6.00 to 7.006.00 to 7.00Nitrogen .0.18 to 0.25IronA rema
21、inderremainderCopper .0.75 maxTABLE 1 Chemical RequirementsElementCompositionLimits, %N08367Carbon 0.030 maxManganese 2.00 maxSilicon 1.00 maxPhosphorus 0.040 maxSulfur 0.030 maxChromium 20.00 to 22.00Nickel 23.50 to 25.50Molybdenum 6.00 to 7.00Nitrogen 0.18 to 0.25IronA remainderCopper 0.75 maxA Ir
22、on shall be determined arithmetically by difference.B691 1827.1.2 SquaresThe permissible variations in size of cold-finished square bars shall be as given in Table 5. For hot-finishedsquare bars and rods, they shall be as given in Table 4.7.1.3 Hexagons and OctagonsThe permissible variations in size
23、 of cold-finished hexagons and octagons shall be as given inTable 5. For hot-finished bar and rod hexagons and octagons they shall be as given in Table 6.7.1.4 Flats (Rectangles) The permissible variations in width and thickness of cold-finished flats shall be as given in Table 7for bars and for wir
24、e in Table 8. For hot-finished flat bars and rods, the tolerances for width and thickness shall be as given in Table9.7.2 Out-of-RoundHot-finished rounds and cold-finished rounds (except forging quality), all sizes, in straight lengths, shall notbe out-of-round by more than shown in Table 4 and Tabl
25、e 3.TABLE 2 Mechanical PropertiesCold-Finished-An-nealed and Hot-Finished-Annealed(All Sizes)ForgingQuality(All Sizes)N08366 N08367 N08366 N08367Tensile strength, min,ksi (MPa)75 (517) 95 (655) A AYield strength, 0.2 %offset, min, ksi (MPa)30 (206) 45 (310) A AElongation in 2 in. or 50mm, or 4D, min
26、, %30 30 A ATABLE 2 Mechanical PropertiesCold-Finished-Annealedand Hot-Finished-Annealed(All Sizes)ForgingQuality(All Sizes)N08367 N08367Tensile strength, min,ksi (MPa)95 (655) AYield strength, 0.2 %offset, min, ksi (MPa)45 (310) AElongation in 2 in. or 50mm, or 4D, min, %30 AA No tensile properties
27、 are required on forging quality.TABLE 3 Permissible Variations in Diameter Cold-FinishedRound Bars and WireSpecifiedSpecified Diameter, in. (mm) Diameter tolerance, in. (mm)A,B,CPlus and Minus0.0030 (0.076) to 0.0048 (0.122), excl 0.0001 (0.003)0.0048 (0.122) to 0.0080 (0.203), excl 0.0002 (0.005)0
28、.0080 (0.203) to 0.0120 (0.305), excl 0.0003 (0.008)0.0120 (0.305) to 0.0240 (0.610), excl 0.0004 (0.010)0.0240 (0.610) to 0.0330 (0.838), excl 0.0005 (0.013)0.0330 (0.838) to 0.0440 (1.118), excl 0.0008 (0.020)0.0440 (1.118) to 0.3125 (7.938), excl 0.001 (0.03)0.3125 (7.938) to 0.5000 (12.700), exc
29、l 0.0015 (0.038)0.5000 (12.700) to 1.000 (25.4), excl 0.002 (0.05)1.000 (25.40) to 1.500 (38.10), excl 0.0025 (0.06)1.500 (38.10) to 4.000 (101.6), incl 0.003 (0.08)A Diameter tolerances are over and under as shown in the above table. Also,rounds can be produced to tolerances all over and nothing un
30、der, or all under andnothing over, or any combination of over and under, if the total spread in diametertolerance for a specified diameter is not less than the total spread shown in thetable.B The maximum out-of-round tolerance for round wire is one-half of the total sizetolerance shown in the above
31、 table.C When it is necessary to heat treat or heat treat and pickle after cold finishing, sizetolerances are double those shown in the table for sizes 0.0240 in. (0.610 mm) andover.B691 1837.3 CornersCold-finished squares, rectangles, hexagons and octagons will have equal angles and sharp corners.7
32、.4 Machining AllowancesWhen the surfaces of hot-finished material are to be machined, the allowances given in Table 10are recommended for normal machining operations.7.5 Length:7.5.1 Unless multiple, nominal, or cut lengths are specified, random mill lengths shall be furnished.7.5.2 When bars are or
33、dered in multiple lengths, 14 in. (6.4 mm) will be allowed for each multiple cut, unless otherwisespecified.7.5.3 The permissible variations in length of hot or cold-finished bars shall be as specified in Table 11 or Table 12 dependingupon whether or not the material is specified to be machine-cut a
34、fter straightening.7.6 Ends:7.6.1 Bars ordered to random or nominal lengths will be furnished with either cropped or saw-cut ends.7.6.2 Bars ordered to cut lengths will be furnished with square saw-cut or machine cut ends.TABLE 4 Permissible Variations in Size of Hot-Finished Round and Square Bars a
35、nd RodsSpecifiedSpecified size, in. (mm)Permissible Variations from Specified Size,in. (mm)Out-of-RoundA orOut-of-Square,B in.(mm)Plus Minus14 (6.4) to 516 (7.9), incl 0.005 (0.13) 0.005 (0.13) 0.008 (0.20)Over 516 (7.9) to 716 (11.1), incl 0.006 (0.15) 0.006 (0.15) 0.009 (0.23)Over 716 (11.1) to 58
36、 (15.9), incl 0.007 (0.18) 0.007 (0.18) 0.010 (0.25)Over 58 (15.9) to 78 (22.2), incl 0.008 (0.20) 0.008 (0.20) 0.012 (0.30)Over 78 (22.2) to 1 (25.4), incl 0.009 (0.23) 0.009 (0.23) 0.013 (0.33)Over 1 (25.4) to 118 (28.6), incl 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)Over 118 (28.6) to 114 (31.8), in
37、cl 0.011 (0.28) 0.011 (0.28) 0.016 (0.41)Over 114 (31.8) to 138 (34.9), incl 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)Over 138 (34.9) to 112 (38.1), incl 0.014 (0.36) 0.014 (0.36) 0.021 (0.53)Over 112 (38.1) to 2 (50.8), incl 164 (0.4) 164 (0.4) 0.023 (0.58)Over 2 (50.8) to 212 (63.5), incl 132 (0.8) 0
38、 0.023 (0.58)Over 212 (63.5) to 312 (88.9), incl 364 (1.2) 0 0.035 (0.89)Over 312 (88.9) to 412 (114.3), incl 116 (1.6) 0 0.046 (1.17)Over 412 (114.3) to 512 (139.7), incl 564 (2.0) 0 0.058 (1.47)Over 512 (139.7) to 612 (165.1), incl 18 (3.2) 0 0.070 (1.78)Over 612 (165.1) to 8 (203.2), incl 532 (4.
39、0) 0 0.085 (2.16)A Out-of-round is the difference between the maximum and minimum diameters of the bar, measured at the same cross section.B Out-of-square section is the difference in the two dimensions at the same cross section of a square bar, each dimension being the distance between opposite fac
40、es.TABLE 5 Permissible Variations in Distance Between ParallelSurfaces of Cold Finished Hexagonal, Octagonal, and SquareBars and WireSpecified Size, in. (mm)Permissible Variations from SpecifiedSize, in.(mm)APlus Minus0.125 (3.18) to 0.3125 (7.938), excl 0 0.002 (0.05)0.3125 (7.938) to 0.500 (12.70)
41、, excl 0 0.003 (0.08)0.500 (12.70) to 1.000 (25.40), incl 0 0.004 (0.10)Over 1 (25.40) to 2 (50.80), incl 0 0.006 (0.15)Over 2 (50.80) to 3 (76.20), incl 0 0.008 (0.20)Over 3 (76.20) 0 0.010 (0.25)A When it is necessary to heat treat or heat treat and pickle after cold finishing, sizetolerances are
42、double those shown in the table.TABLE 6 Permissible Variations in Size of Hot-Finished Hexagonal and Octagonal Bars and RodsSpecified Sizes Measured Between OppositeSides, in. (mm)Permissible Variations from Specified Size,in. (mm)Maximum Difference,in. (mm), 3 Measure-ments for HexagonsOnlyPlus Min
43、us14 to 12 (6.4 to 12.7), incl 0.007 (0.18) 0.007 (0.18) 0.011 (0.28)Over 12 to 1 (12.7) to (25.4), incl 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)Over 1 (25.4) to 112 (38.1), incl 0.021 (0.53) 0.021 (0.53) 0.025 (0.64)Over 112 (38.1) to 2 (50.8), incl 132 (0.8) 132 (0.8) 132 (0.8)Over 2 (50.8) to 212 (
44、63.5), incl 364 (1.2) 364 (1.2) 364 (1.2)Over 212 (63.5) to 312 (88.9), incl 116 (1.6) 116 (1.6) 116 (1.6)B691 1847.7 Straightness:7.7.1 The permissible variations in straightness of cold-finished bars shall be as specified in Table 13.7.7.2 The permissible variations in straightness of hot-finished
45、 bars shall be as specified in Table 13.TABLE 7 Permissible Variations in Width and Thickness of Cold-Finished Flat BarsWidth, in. (mm)Width Tolerance, in. (mm),Plus and MinusAFor Thick-nesses 0.250in. (6.35) andUnderFor Thick-nesses Over0.250 in.(6.35)0.375 (9.53) to 1 (25.40), incl 0.004 (0.10) 0.
46、002 (0.05)Over 1 (25.40) to 2 (50.80), incl 0.006 (0.15) 0.003 (0.08)Over 2 (50.80) to 3 (76.20), incl 0.008 (0.20) 0.004 (0.10)Over 3 (76.20) to 4.500 (114.30),inclB0.010 (0.25) 0.005 (0.13)Thickness, in. (mm)ThicknessTolerance, in.(mm), Plusand MinusA0.125 (3.18) to 1 (25.40), incl 0.002 (0.05)Ove
47、r 1 (25.40) to 2 (50.80), incl 0.003 (0.08)Over 2 (50.80) to 3 (76.20), incl 0.004 (0.10)Over 3 (76.20) to 4.500 (114.30),inclB0.005 (0.13)A When it is necessary to heat treat or heat treat and pickle after cold finishing,tolerances are double those shown in the table.B Cold-finished flat bars over
48、4.500 in. (114.3 mm) wide or thick are produced:width and thickness tolerances for such bars are not included herein.TABLE 8 Permissible Variations in Width and Thickness of Cold-Finished Flat CoilsASpecifiedSpecified Width, in. (mm)Permissible Variations in Thickness, in. (mm),Plus and Minus, for G
49、iven Thicknesses, in. (mm)Permissible Variationsin Width, in. (mm), for GivenWidth, in. (mm)Under 0.029(0.74)0.029 (0.74) to0.035 (0.89), excl0.035 (0.89) to0.1875 (4.76),exclPlus Minus0.0625 (1.588) to 0.375 (9.52), excl 0.001 (0.03) 0.0015 (0.038) 0.002 (0.05) 0.005 (0.13) 0.005 (0.13)A Where it is necessary to heat treat or heat treat and pickle after cold finishing, size variations are double those shown in the table.TABLE 9 Permissible Variations in Thickness and Width for Hot-Finished Flat Bars and RodsS
