1、Designation: B649 06 (Reapproved 2016)B649 17Standard Specification forNi-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925,UNS N08031, UNS N08034, UNS N08354, and UNS N08926),andCr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire,and Ni-Cr-Fe-Mo-N Alloy (UNS N08936) Wire1This standard is issued under t
2、he fixed designation B649; 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 year of last reapproval. Asuperscript epsilon () indicates an editorial change since the la
3、st revision or reapproval.1. Scope Scope*1.1 This specification covers nickel-iron-chromium-molybdenum-copper-nitrogen alloys (UNS N08925, UNS N08031, UNSN08034, UNS N08354, and UNS N08926), and chromium-nickel-iron-nitrogen low-carbon alloy (UNS R20033) bar and wire, andnickel-chromium-iron-molybde
4、num-nitrogen alloy (UNS N08936) wire.1.2 ASTM International has adopted definitions whereby some grades, such as UNS N08904,2 previously in this specificationwere recognized as stainless steels, because those grades have iron as the largest element by mass percent. Such grades are underthe oversight
5、 of ASTM Committee A01 and its subcommittees. The products of N08904 previously covered in this specificationare now covered by Specifications A479/A479M and A484/A484M.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversio
6、ns to SI units that are provided for information only and are not considered standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to become familiar with all hazards including those id
7、entified in the appropriate Safety Data Sheet(SDS) for this product/material as provided by the manufacturer, to establish appropriate safety safety, health and healthenvi-ronmental practices, and determine the applicability of regulatory limitations prior to use.1.5 This international standard was
8、developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Do
9、cuments2.1 ASTM Standards:3A479/A479M Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure VesselsA484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and ForgingsB880 Specification for General Requirements for Chemical Check Analysi
10、s Limits for Nickel, Nickel Alloys and Cobalt AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical
11、 CompositionE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)E1473 Test Methods for Chemical Analysis of Nickel, Cobalt and High-Temperature Alloys3. Terminology3.1 Definitions of Terms Specific to This Standard:1 This specification is under the jurisdiction ofASTM
12、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 June 1, 2016July 1, 2017. Published June 2016August 2017. Originally approved in 1981. Last previous edition approved in 20112016
13、 as B649 06 (2011).(2016). DOI: 10.1520/B0649-06R16.10.1520/B0649-17.2 New designation established in accordance with Practice E527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at se
14、rviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards 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 indication of what changes have been made to the previous version
15、. 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 considered the official document.*A Summary of Changes section
16、 appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.1 bars, nhot-finished rounds, squares, octagons, and hexagons: 14 in. (6.35 mm) and over in diameter or size. Hot-finishedflats: 14 in. to 10 in.
17、(254 mm) inclusive in width, 18 in. (3.18 mm) and over in thickness. Cold-finished rounds, squares, octagons,hexagons, and shapes: over 12 in. (12.70 mm) in diameter or size. Cold-finished flats: 38 in. (9.52 mm) and over in width (see3.1.1.1) and 18 in. and over in thickness (see 3.1.1.2).3.1.1.1 D
18、iscussionWidths less than 38 in. (9.52 mm) and thicknesses less than 316 in. (4.76 mm) are described generally as flat wire.3.1.1.2 DiscussionThickness 18 in. to under 316 in. (3.18 mm to under 4.76 mm) can be cold-rolled strip as well as bar.3.1.2 wire, ncold-finished only: round, square, octagon,
19、hexagon, and shape wire, 12 in. (12.70 mm) and under in diameteror size. Cold-finished only: flat wire, 316 in. to under 38 in. (4.76 mm to under 9.52 mm) in width, 0.010 to under 316 in. (0.25to under 4.76 mm) in thickness.4. Ordering Information4.1 It is the responsibility of the purchaser to spec
20、ify all requirements that are necessary for material ordered to thisspecification. Examples of such requirements include, but are not limited to, the following:4.1.1 Quantity (weight or number of pieces),4.1.2 Alloy name or UNS number,4.1.3 Form (bar or wire),4.1.4 Dimensions,4.1.5 Finish (Section 9
21、),4.1.6 ASTM designation and year of issue,4.1.7 Exceptions to the specification or special requirements, and4.1.8 Certification (Section 16). State if certification is required.5. Materials and Manufacture5.1 Heat TreatmentWith the exception of UNS N08936, the material shall be supplied in the solu
22、tion-treated condition exceptas noted in 5.2. UNS N08936 shall be supplied in the cold drawn condition.TABLE 1 Chemical RequirementsElement UNSN08936UNSN08925UNSN08031UNSN08354UNSN08926UNSR20033Carbon, max 0.020 0.020 0.015 0.030 0.020 0.015Manganese, max 4.006.00 1.00 2.0 1.00 2.00 2.0Phosphorus, m
23、ax 0.025 0.045 0.020 0.030 0.03 0.02Sulfur, max 0.010 0.030 0.010 0.010 0.01 0.01Silicon, max 0.50 0.50 0.3 1.00 0.5 0.50Nickel 33.0035.00 24.0026.00 30.032.0 34.036.0 24.0026.00 30.033.0Chromium 26.0028.00 19.0021.00 26.028.0 22.024.0 19.0021.00 31.035.0Molybdenum 5.006.00 6.07.0 6.07.0 7.08.0 6.07
24、.0 0.502.0Copper 0.50 0.81.5 1.01.4 . 0.51.5 0.301.20Nitrogen 0.300.50 0.10.2 0.150.25 0.170.24 0.150.25 0.350.60Iron balance balance balance balance balance balanceTABLE 1 Chemical RequirementsElement UNSN08936 UNSN08925 UNSN08031 UNSN08034 UNSN08354 UNSN08926 UNSR20033Carbon, max 0.020 0.020 0.015
25、 0.01 0.030 0.020 0.015ManganeseA 4.006.00 1.00 2.0 1.0-4.0 1.00 2.00 2.0Phosphorus, max 0.025 0.045 0.020 0.020 0.030 0.03 0.02Sulfur, max 0.010 0.030 0.010 0.010 0.010 0.01 0.01Silicon, max 0.50 0.50 0.3 0.1 1.00 0.5 0.50Nickel 33.0035.00 24.0026.00 30.032.0 33.5-35.0 34.036.0 24.0026.00 30.033.0C
26、hromium 26.0028.00 19.0021.00 26.028.0 26.0-27.0 22.024.0 19.0021.00 31.035.0Molybdenum 5.006.00 6.07.0 6.07.0 6.0-7.0 7.08.0 6.07.0 0.502.0Copper 0.50 0.81.5 1.01.4 0.5-1.5 . 0.51.5 0.301.20Nitrogen 0.300.50 0.10.2 0.150.25 0.10-0.25 0.170.24 0.150.25 0.350.60Iron balance balance balance balance ba
27、lance balance balanceAluminum . . . 0.3 . . .A Maximum %, unless range or minimum is indicated.B649 172NOTE 1The recommended heat treatment shall consist of heating to a temperature of 2010 to 2100F (1100 to 1150C) followed by water quenchingfor UNS N08925, UNS N08031, UNS N08034, 1975 to 2150F (108
28、0 to 1180C) followed by water quenching or fast air cool for UNS N08354, andUNS N08926, or 2010 to 2150F (1100 to 1180C) followed by water quenching or fast air cool for UNS R20033.5.2 The heat treatment shall be waived for forging quality material.6. Chemical Composition6.1 The material sampled in
29、accordance with 10.2 shall conform to the requirements as to chemical composition prescribed inTable 1.6.2 Product AnalysisProduct analysis may be made by the purchaser to verify the identity of the finished material representingeach heat or lot. Such analysis may be made by any of the commonly acce
30、pted methods that will positively identify the material.6.2.1 If a product analysis is made, the material shall conform to the product check analysis variation per Specification B880.7. Mechanical and Other Requirements7.1 Tensile RequirementsThe material shall conform to the requirements as to the
31、mechanical property prescribed in Table 2.8. Dimensions, Weight, and Permissible Variations8.1 BarThe material referred to as bar shall conform to the variations in dimensions prescribed in Tables 3-11 inclusive, asapplicable.8.2 WireThe material referred to as wire shall conform to the permissible
32、variations in dimensions prescribed in Tables 12-16inclusive, as applicable.9. Workmanship, Finish, and Appearance9.1 The material shall be uniform in quality and condition, smooth, commercially straight or flat, and free of injurious defects.9.2 Bars in the hot-finished condition may be furnished w
33、ith one of the following finishes:9.2.1 Scale not removed,9.2.2 Pickled or descaled, or9.2.3 Turned (rounds only).9.3 Bars in the cold-finished condition may be furnished with one of the following finishes:9.3.1 Cold-drawn,9.3.2 Centerless ground (rounds only), or9.3.3 Polished (rounds only).9.4 Wir
34、e in the cold-finished condition may be furnished with one of the following finishes:9.4.1 Cold-drawn,9.4.2 Centerless ground (rounds only),9.4.3 Polished (rounds only), or9.4.4 Pickled.TABLE 2 Mechanical Property RequirementsAAlloyCold Finished and Hot Finished Annealed,BAll Sizes Except Where Note
35、dTensile Strength,min, psi (MPa)CYield Strengthmin, psi (MPa)CElongation in2 in. (50.8mm), min, %ForgingQuality,AllSizesUNS N08925 87 000 (600) 43 000 (300) 40 AUNS N08031 94 000 (650) 40 000 (270) 40 AUNS N08034 94 000 (650) 40 000 (280) 40 AUNS N08926 94 000 (650) 43 000 (295) 35 AUNS N08354 93 00
36、0 (640) 43 000 (295) 40 AUNS R20033 109 000 (750) 55 000 (380) 40 AUNS N08936Up to 0.063 in.(1.60 mm) dia.,incl.280 000 (1931) 240 000 (1655) . .Over 0.063 in.(1.60 mm) dia.250 000 (1724) 220 000 (1517) . .A No tensile properties are required on forging quality.B UNS N08936 shall be supplied in the
37、cold drawn condition only.C For cold finished and annealed wire only, tensile strength 90 000 to 120 000 psi(620 to 830 MPa).B649 17310. Sampling10.1 Lots for Chemical Analysis and Mechanical Testing:10.1.1 A lot for chemical analysis shall consist of one heat.TABLE 3 Permissible Variations in Size
38、of Hot-Finished Round and Square BarsPermissible Variations from Specified Size, in. (mm) Out-of-RoundA or Out-of-Square,Bin. (mm)Over Under14 (6.35) to 516 (7.94), inclC,D E E EOver 516 (7.94) to 716 (11.11), inclC,D 0.006 (0.15) 0.006 (0.15) 0.009 (0.23)Over 716 (11.11) to 58 (15.88), inclC,D 0.00
39、7 (0.18) 0.007 (0.18) 0.010 (0.25)Over 58 (15.88) to 78 (22.22), incl 0.008 (0.20) 0.008 (0.20) 0.012 (0.30)Over 78 (22.22) to 1 (25.40), incl 0.009 (0.23) 0.009 (0.23) 0.013 (0.33)Over 1 (25.40) to 118 (28.58), incl. 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)Over 118 (28.58) to 114 (31.75), incl 0.011
40、(0.28) 0.011 (0.28) 0.016 (0.41)Over 114 (31.75) to 138 (34.92), incl 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)Over 138 (34.92) to 112 (38.10), incl 0.014 (0.36) 0.014 (0.36) 0.021 (0.53)Over 112 (38.10) to 2 (50.80), incl 164 (0.40) 164 (0.40) 0.023 (0.58)Over 2 (50.80) to 212 (63.50), incl 132 (0.79)
41、 0 0.023 (0.58)Over 212 (63.50) to 312 (88.90), incl 364 (1.19) 0 0.035 (0.89)Over 312 (88.90) to 412 (114.30), incl 116 (1.59) 0 0.046 (1.17)Over 412 (114.30) to 512 (139.70), incl 564 (1.98) 0 0.058 (1.47)Over 512 (139.70) to 612 (165.10), incl 18 (3.18) 0 0.070 (1.78)Over 612 (165.10) to 8 (203.2
42、0), incl 532 (3.97) 0 0.085 (2.18)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 bet
43、ween opposite faces.C Size tolerances have not been evolved for rounds in the size range from 14 to 516 in. (6.35 to 7.94 mm), incl. Size tolerances have not been evolved for round sectionsin the size range from 14 (6.35 mm) to approximately 58 in. (15.88 mm) in diameter which are produced on rod mi
44、lls in coils.D Squares in this size are not produced as hot-rolled products.E Variations in size of coiled product made on rod mills are greater than size tolerances for product made on bar mills.TABLE 4 Permissible Variations in Size of Hot-Finished Hexagonal and Octagonal BarsSpecified Sizes Measu
45、red Between OppositeSides,in. (mm)Permissible Variations from Specified Size, in. (mm) Maximum Difference in 3Measurements for Hexagonsonly, in. (mm)Over Under14 (6.35) to 12 (12.70), incl 0.007 (0.18) 0.007 (0.18) 0.011 (0.28)Over 12 (12.70) to 1 (25.40), incl 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)
46、Over 1 (25.40) to 112 (38.10), incl 0.021 (0.53) 0.021 (0.53) 0.025 (0.64)Over 112 (38.10) to 2 (50.80), incl 132 (0.79) 132 (0.79) 132 (0.79)Over 2 (50.80) to 212 (63.50), incl. 364 (1.19) 364 (1.19) 364 (1.19)Over 212 (63.50) to 312 (88.90), incl 116 (1.59) 116 (1.59) 116 (1.59)TABLE 5 Permissible
47、 Variations in Thickness and Width for Hot-Finished Flat BarsSpecified Width, in. (mm)Permissible Variations in Thickness for Thicknesses Given, in. (mm)18 (3.18) to 12 (12.70), incl Over 12 (12.70) to 1 (25.40), incl Over 1 (25.40) to 2 (50.80), inclOver Under Over Under Over UnderTo 1 (25.40), inc
48、l 0.008 (0.20) 0.008 (0.20) 0.010 (0.25) 0.010 (0.25) . .Over 1 (25.40) to 2 (50.80), incl 0.012 (0.30) 0.012 (0.30) 0.015 (0.38) 0.015 (0.38) 0.031 (0.79) 0.031 (0.79)Over 2 (50.80) to 4 (101.60), incl 0.015 (0.38) 0.015 (0.38) 0.020 (0.51) 0.020 (0.51) 0.031 (0.79) 0.031 (0.79)Over 4 (101.60) to 6
49、 (152.40), incl 0.015 (0.38) 0.015 (0.38) 0.020 (0.51) 0.020 (0.51) 0.031 (0.79) 0.031 (0.79)Over 6 (152.40) to 8 (203.20), incl 0.016 (0.41) 0.016 (0.41) 0.025 (0.64) 0.025 (0.64) 0.031 (0.79) 0.031 (0.79)Over 8 (203.20) to 10 (254.00), incl 0.021 (0.53) 0.021 (0.53) 0.031 (0.79) 0.031 (0.79) 0.031 (0.79) 0.031 (0.79)Over 2 (50.80) to 4 (101.60), incl Over 4 (101.60) to 6 (152.40), incl Over 6 (152.40) to 8 (203.20), inclOver Under Ov
