1、Designation: B 691 02 (Reapproved 2007)Standard Specification forIron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 andUNS N08367) Rod, Bar, and Wire1This standard is issued under the fixed designation B 691; the number immediately following the designation indicates the year oforiginal adoption or,
2、 in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers iron-nickel-chromium-molybdenum alloys (UNS N08366 an
3、d UNS N08367)* in theform of hot-finished and cold-finished rounds, squares, hexa-gons, octagons, and rectangles.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.3 The following safety hazards caveat pertains only
4、to thetest methods portion, Section 12, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to become familiar with all hazards includingthose identified in the appropriate Ma
5、terial Safety Data Sheet(MSDS) for this product/material as provided by the manufac-turer, to establish appropriate safety and health practices, anddetermine the applicability of regulatory limitations prior touse.2. Referenced Documents2.1 ASTM Standards:2B 880 Specification for General Requirement
6、s for ChemicalCheck Analysis Limits for Nickel, Nickel Alloys andCobalt AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 1473 Test Methods for Chemical Analysis of Nickel,Cobalt, and Hig
7、h-Temperature Alloys3. Terminology3.1 Definitions of Terms Specific to This Standard: Theterms rod, bar, and wire, as used in this specification, aredescribed as follows:3.1.1 bar, nhot-finished or cold-finished material ofround, square, hexagon, octagon, or rectangular solid section instraight leng
8、ths.3.1.2 rod, nhot-finished material of round, square, hexa-gon, octagon, or rectangular solid section furnished in coils forsubsequent cold drawing into finished products.3.1.3 wire, ncold-finished material of round, square,hexagon, octagon, or rectangle solid section furnished in coils.4. Orderin
9、g Information4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered to thisspecification. Examples of such requirements include, but arenot limited to, the following:4.1.1 Quantity (feet, metres, or number of pieces),4.1.2 Form (rod, bar, wir
10、e),4.1.3 Name of material or UNS number,4.1.4 Finish (see 8.2),4.1.5 Dimensions, including length,4.1.6 Certification, if required (Section 15),4.1.7 Purchasers inspection, if required (Section 13),4.1.8 ASTM designation and year of issue, and4.1.9 Samples for product analysis, if required.5. Chemic
11、al Composition5.1 The material shall conform to the composition limitsspecified in Table 1.1This 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 Alloys.Current e
12、dition approved Nov. 1, 2007. Published November 2007. Originallyapproved in 1981. Last previous edition approved in 2002 as B 691 02.* New designation established in accordance with ASTM E 527 and SAE J1086,Practice for Numbering Metals and Alloys.2For referenced ASTM standards, visit the ASTM webs
13、ite, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United Stat
14、es.5.2 If a product (check) analysis is made by the purchaser,the material shall conform to the permissible variations forproduct (check) analysis in Specification B 880.6. Mechanical Properties and Other Requirements6.1 The material shall conform to the mechanical propertyrequirements specified in
15、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-finishedround bars and rod, they shall be as given in Table 4.7.1.2 SquaresThe permissible variations in size of cold-finished square b
16、ars shall be as given in Table 5. For hot-finished square bars and rods, they shall be as given in Table 4.7.1.3 Hexagons and OctagonsThe permissible variationsin size of cold-finished hexagons and octagons shall be asgiven in Table 5. For hot-finished bar and rod hexagons andoctagons they shall be
17、as given in Table 6.7.1.4 Flats (Rectangles)The permissible variations inwidth and thickness of cold-finished flats shall be as given inTable 7 for bars and for wire in Table 8. For hot-finished flatbars and rods, the tolerances for width and thickness shall be asgiven in Table 9.7.2 Out-of-RoundHot
18、-finished rounds and cold-finishedrounds (except forging quality), all sizes, in straight lengths,shall not be out-of-round by more than shown in Table 4 andTable 3.7.3 CornersCold-finished squares, rectangles, hexagonsand octagons will have equal angles and sharp corners.7.4 Machining AllowancesWhe
19、n the surfaces of hot-finished material are to be machined, the allowances given inTable 10 are 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 ordered in multiple lengths,1
20、4 in. (6.4mm) 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 12depending upon whether or not the material is specified to bemachine-cut after straightening.7.6 Ends:7.
21、6.1 Bars ordered to random or nominal lengths will befurnished with either cropped or saw-cut ends.7.6.2 Bars ordered to cut lengths will be furnished withsquare saw-cut or machine cut ends.7.7 Straightness:7.7.1 The permissible variations in straightness of cold-finished bars shall be as specified
22、in Table 13.7.7.2 The permissible variations in straightness of hot-finished bars shall be as specified in Table 13.8. Workmanship, Finish, and Appearance8.1 The material shall be uniform in quality and condition,smooth, commercially straight or flat, and free of injuriousimperfections.8.2 Finishes
23、available include hot-rolled, hot rolled-annealed-descaled, cold-drawn, ground, turned, and machined.9. Sampling9.1 Lot Definition:9.1.1 A lot for chemical analysis shall consist of one heat.9.1.2 Lots for mechanical testing shall consist of the mate-rial from one heat, in the same condition (temper
24、), and of thesame specified size (excepting length) and cross-section.TABLE 1 Chemical RequirementsElementComposition Limits, %N08366 N08367Carbon 0.035 max 0.030 maxManganese 2.00 max 2.00 maxSilicon 1.00 max 1.00 maxPhosphorus 0.040 max 0.040 maxSulfur 0.030 max 0.030 maxChromium 20.00 to 22.00 20
25、.00 to 22.00Nickel 23.50 to 25.50 23.50 to 25.50Molybdenum 6.00 to 7.00 6.00 to 7.00Nitrogen . 0.18 to 0.25IronAremainder remainderCopper . 0.75 maxAIron shall be determined arithmetically by difference.TABLE 2 Mechanical PropertiesCold-Finished-An-nealed and Hot-Finished-Annealed(All Sizes)Forging
26、Quality(All Sizes)N08366 N08367 N08366 N08367Tensile strength, min,ksi (MPa)75 (517) 95 (655)AAYield strength, 0.2 %offset, min, ksi (MPa)30 (206) 45 (310)AAElongation in 2 in. or 50mm, or 4D,min,%30 30AAANo tensile properties are required on forging quality.TABLE 3 Permissible Variations in Diamete
27、r Cold-FinishedRound Bars and WireSpecified 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)0.0080 (0.203) to 0.0120 (0.305), excl 0.0003 (0.008)0.0120 (0.305) to 0.0240 (0.610)
28、, 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), excl 0.0015 (0.038)0.5000 (12.700) to 1.000 (25.4), excl 0.002 (0.05)1.000 (25.40) to 1
29、.500 (38.10), excl 0.0025 (0.06)1.500 (38.10) to 4.000 (101.6), incl 0.003 (0.08)ADiameter tolerances are over and under as shown in the above table. Also,rounds can be produced to tolerances all over and nothing under, or all under andnothing over, or any combination of over and under, if the total
30、 spread in diametertolerance for a specified diameter is not less than the total spread shown in thetable.BThe maximum out-of-round tolerance for round wire is one-half of the total sizetolerance shown in the above table.CWhen it is necessary to heat treat or heat treat and pickle after cold finishi
31、ng,size tolerances are double those shown in the table for sizes 0.0240 in. (0.610 mm)and over.B 691 02 (2007)29.2 Test Material Selection:9.2.1 Sampling for Chemical Analysis:9.2.1.1 An analysis of each lot shall be made by themanufacturer from a representative sample obtained during thepouring of
32、the heat or subsequent processing.9.2.1.2 If samples for product (check) analysis are specified,a representative sample shall be taken from each lot of finishedmaterial.9.2.2 Sampling for Mechanical TestingSamples of thematerial to provide test specimens for mechanical testing shallbe taken from suc
33、h locations in each lot (see 9.1.2)astoberepresentative of that lot.10. Number of Tests and Retests10.1 Chemical AnalysisOne test per lot.10.2 Mechanical Tests and Tension TestsOne test per lot.10.3 RetestsIf the specimen used in the mechanical test ofany lot fails to meet the specified requirements
34、, an additionalspecimen shall be taken from a different sample piece andtested. The results of this test specimen shall meet the specifiedrequirements.TABLE 4 Permissible Variations in Size of Hot-Finished Round and Square Bars and RodsSpecified size, in. (mm)Permissible Variations from Specified Si
35、ze,in. (mm)Out-of-RoundAorOut-of-Square,Bin.(mm)Plus Minus14 (6.4) to516 (7.9), incl 0.005 (0.13) 0.005 (0.13) 0.008 (0.20)Over516 (7.9) to716 (11.1), incl 0.006 (0.15) 0.006 (0.15) 0.009 (0.23)Over716 (11.1) to58 (15.9), incl 0.007 (0.18) 0.007 (0.18) 0.010 (0.25)Over58 (15.9) to78 (22.2), incl 0.0
36、08 (0.20) 0.008 (0.20) 0.012 (0.30)Over78 (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), incl 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)
37、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), incl164 (0.4)164 (0.4) 0.023 (0.58)Over 2 (50.8) to 212 (63.5), incl132 (0.8) 0 0.023 (0.58)Over 212 (63.5) to 312 (88.9), incl364 (1.2) 0 0.035 (0.89)Over 312 (88.9) to 41
38、2 (114.3), incl116 (1.6) 0 0.046 (1.17)Over 412 (114.3) to 512 (139.7), incl564 (2.0) 0 0.058 (1.47)Over 512 (139.7) to 612 (165.1), incl18 (3.2) 0 0.070 (1.78)Over 612 (165.1) to 8 (203.2), incl532 (4.0) 0 0.085 (2.16)AOut-of-round is the difference between the maximum and minimum diameters of the
39、bar, measured at the same cross section.BOut-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 faces.TABLE 5 Permissible Variations in Distance Between ParallelSurfaces of Cold Finished Hexagonal, O
40、ctagonal, 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), 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),
41、 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)AWhen it is necessary to heat treat or heat treat and pickle after cold finishing,size tolerances are double those shown in the table.TABLE 6 Permissible Variations in Size of Hot-Finished Hexagonal and
42、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 Minus14 to12 (6.4 to 12.7), incl 0.007 (0.18) 0.007 (0.18) 0.011 (0.28)Over12 to 1 (12.7) to (25.4), inc
43、l 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), incl132 (0.8)132 (0.8)132 (0.8)Over 2 (50.8) to 212 (63.5), incl364 (1.2)364 (1.2)364 (1.2)Over 212 (63.5) to 312 (88.9), incl116 (1.6)116 (1.6)116 (1.6)B 691
44、02 (2007)3TABLE 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) 0.002 (0.05)Over 1 (25.40) to 2
45、(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)Over 1 (25.40) to 2 (50.80), incl
46、 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)AWhen it is necessary to heat treat or heat treat and pickle after cold finishing,tolerances are double those shown in the table.BCold-finished flat bars over 4.500 in. (114.3 mm) wide or thi
47、ck 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 CoilsASpecified Width, in. (mm)Permissible Variations in Thickness, in. (mm),Plus and Minus, for Given Thicknesses, in. (mm)Permissible Var
48、iationsin 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)AWhere it is necessary to heat treat or heat treat an
49、d 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 RodsSpecified Widths, in.Thickness Tolerances, in., for Thicknesses Given18 to12inclOver12 to1 inclOver 1 to2 inclOver 2 to 4 incl Over 4 to 6 incl Over 6 to 8 incl Width Tolerance, in.Plus and Minus Plus Minus Plus Minus Plus Minus Plus MinusUp to 1, incl 0.008 0.010 . . . . . . . 0.015 0.015Over 1 to 2, incl 0.012 0.015 0.031 . . . . . . 0.031 0
