1、Designation: B574 18Standard Specification forLow-Carbon Nickel-Chromium-Molybdenum, Low-CarbonNickel-Molybdenum-Chromium, Low-Carbon Nickel-Molybdenum-Chromium-Tantalum, Low-Carbon Nickel-Chromium-Molybdenum-Copper, and Low-Carbon Nickel-Chromium-Molybdenum-Tungsten Alloy Rod1This standard is issue
2、d under the fixed designation B574; 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 sin
3、ce the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification2covers rod of low-carbon nickel-chromium-molybdenum alloys (UNS N10276, N06022,N06035, N06044, N06455, N06058, and N06059), low-carbonnickel-molybd
4、enum-chromium (USN N10362), low-carbonnickel-molybdenum-chromium-tantalum (UNS N06210), low-carbon nickel-chromium-molybdenum-copper alloy (UNSN06200), and low-carbon nickel-chromium-molybdenum-tungsten (UNS N06686) as shown in Table 1, for use in generalcorrosive service.1.2 The following products
5、are covered under this specifi-cation:1.2.1 Rods516 to34 in. (7.94 to 19.05 mm), exclusive, indiameter, hot or cold finished, solution annealed and pickled, ormechanically descaled.1.2.2 Rods34 to 312 in. (19.05 to 88.9 mm), inclusive, indiameter, hot or cold finished, solution annealed, ground ortu
6、rned.1.2.3 Rods14 to 312 in. (6.35 to 88.9 mm), inclusive, indiameter, solution annealed, cold finished, as cold finished,ground or turned (N06059 and N06686 only, see Table 2 andTable 3).1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mat
7、hematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 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 inc
8、luding those identified in the appropriateSafety Data Sheet (SDS) for this product/material as providedby the manufacturer, to establish appropriate safety, health,and environmental practices, and determine the applicabilityof regulatory limitations prior to use.1.5 This international standard was d
9、eveloped in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced
10、Documents2.1 ASTM Standards:3B880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel, Nickel Alloys andCobalt AlloysE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Speci
11、ficationsE55 Practice for Sampling Wrought Nonferrous Metals andAlloys for Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)E1473 Test Methods for Chemical Analysis of Nickel, Co-balt and High-Temperature Alloys3. Terminology3.1 D
12、efinitions of Terms Specific to This Standard: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 edition approved Nov. 1, 2018. Published Decem
13、ber 2018. Originallyapproved in 1972. Last previous edition approved in 2017 as B574 17. DOI:10.1520/B0574-18.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-574 in Section II of that Code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orco
14、ntact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards 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
15、 Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Tra
16、de Organization Technical Barriers to Trade (TBT) Committee.1TABLE1ChemicalRequirementsElementCompositionLimits,%Alloy N06035Alloy N06044Alloy N10276Alloy N06022Alloy N06455Alloy N06059Alloy N06058Alloy N06200Alloy N10362Alloy N06210Alloy N06686Molybdenum7.609.000.80-1.2015.017.012.514.514.017.015.0
17、16.518.521.015.017.021.5-23.018.020.015.0-17.0Chromium32.2534.2543.5-45.314.516.520.022.514.018.022.024.020.0-23.022.024.013.8-15.618.020.019.0-23.0Iron2.00max0.3max4.07.02.06.03.0max1.5,max1.5,max3.0max1.25max1.0max5.0maxTungsten0.60max.3.04.52.53.5.0.3max.3.0-4.4Cobalt,max1.00.2.52.52.00.30.3max2.
18、0max.1.0.Carbon,max0.0500.020.0100.0150.0150.0100.0100.0100.0100.0150.010Silicon,max0.600.200.080.080.080.100.100.080.080.080.08Manganese,max0.500.07-0.301.00.501.00.50.50.50.600.50.75Vanadium,max0.20.0.350.35.0.35.Phosphorus,max0.0300.0200.040.020.040.0150.0150.0250.0250.020.04Sulfur,max0.0150.0200
19、.030.020.030.0100.0100.0100.0100.020.02Titanium.0.10-0.30.0.7max.0.02-0.25NickelremainderABalremainderAremainderAremainderABalBalremainderAremainderAremainderAremainderAAluminum0.40max0.30max.0.10.40.40max0.50max0.50max.Copper0.30max.0.50max0.50max1.31.9.Tantalum.1.52.2.Nitrogen.0.020.15.ASee12.1.1.
20、B574 1823.1.1 rod, na product of round solid section furnished instraight lengths.4. Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification. Examples of such requirements include, but arenot limited
21、 to the following:4.1.1 AlloyTable 1.4.1.2 DimensionsNominal diameter and length. Theshortest usable multiple length should be specified (Table 4).4.1.3 CertificationState if certification or a report of testresults is required (Section 15).4.1.4 Purchaser InspectionState which tests or inspec-tions
22、 are to be witnessed (Section 13).4.1.5 Samples for Product (Check) AnalysisState whethersamples should be furnished (9.2.2).5. Chemical Composition5.1 The material shall conform to the composition limitsspecified in Table 1.TABLE 2 Permissible Variations in Diameter and Out-of-Roundness of As Cold
23、Finished RodsSpecified Diameter, in. (mm)Permissible Variations, in. (mm)DiameterOut of Roundness, max+14 716 (6.3511.11), incl 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)Over716 58 (11.1115.87), incl 0.014 (0.36) 0.014 (0.36) 0.020 (0.51)Over58 34 (15.8719.05), excl 0.016 (0.41) 0.016 (0.41) 0.024 (0.61
24、)34 312 (19.0588.9), incl 0.010 (0.25) 0.010 (0.25) 0.010 (0.25)TABLE 3 Mechanical Property Requirements for As Cold Finished RodsAlloy Grade Tensile Strength, min, psi (MPa)Yield Strength (0.2 % Offset), min, psi(MPa)Elongation in 2 in.(50.8 mm) or 4DAmin, %N06059 1 120 (827) 85 (586) 202 135 (931)
25、 125 (862) 203 160 (1103) 150 (1034) 15N06686 1 120 (827) 85 (586) 202 135 (931) 125 (862) 203 160 (1103) 150 (1034) 20AD refers to the diameter of the tension specimen.TABLE 4 Permissible Variations in Diameter and Out-of-Roundness of Hot or Cold Finished, Solution Annealed RodsSpecified Diameter,
26、in. (mm)Permissible Variations, in. (mm)DiameterOut of Roundness, max+516 Hot-Finished, Annealed, and Descaled Rods516 716 (7.9411.11), incl 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)Over716 58 (11.1115.87), incl 0.014 (0.36) 0.014 (0.36) 0.020 (0.51)Over58 34 (15.8719.05), excl 0.016 (0.41) 0.016 (0.41
27、) 0.024 (0.61)Hot-Finished, Annealed, and Ground or Turned Rods34 312 (19.0588.9), incl 0.010 (0.25) 0 0.008 (0.20)TABLE 5 Mechanical Property Requirements for Hot or Cold Finished, Solution Annealed RodsAlloy Tensile Strength, min, psi (MPa)Yield Strength (0.2 % Offset), min, psi(MPa)Elongation in
28、2 in.(50.8 mm) or 4DAmin, %N10276 100 000 (690) 41 000 (283) 40N06022 100 000 (690) 45 000 (310) 45N06035 85 000 (586) 35 000 (241) 30N06044 100 000 (690) 41 000 (280) 30N06455 100 000 (690) 40 000 (276) 40N06058 110 000 (760) 52 000 (360) 40N06059 100 000 (690) 45 000 (310) 45N06200 100 000 (690) 4
29、5 000 (310) 45N10362 105 000 (725) 45 000 (310) 40N06686 100 000 (690) 45 000 (310) 45N06210 100 000 (690) 45 000 (310) 45AD refers to the diameter of the tension specimen.B574 1835.2 If a product (check) analysis is made by the purchaser,the material shall conform to the product (check) analysisvar
30、iations per Specification B880.6. Mechanical Properties and Other Requirements6.1 The mechanical properties of the material at roomtemperature shall conform to those shown in Table 3 and Table5.7. Dimensions and Permissible Variations7.1 DiameterThe permissible variations from the speci-fied diamete
31、r shall be as prescribed in Table 2 and Table 4.7.2 Out of RoundnessThe permissible variation in round-ness shall be as prescribed in Table 2 and Table 4.7.3 Machining AllowancesWhen the surfaces of finishedmaterial are to be machined, the following allowances aresuggested for normal machining opera
32、tions.7.3.1 As-finished (Annealed and Descaled)For diametersof516 to1116 in. (7.94 to 17.46 mm) inclusive, an allowance of116 in. (1.59 mm) on the diameter should be made for finishmachining.7.4 Length:7.4.1 Unless multiple, nominal, or cut lengths are specified,random mill lengths shall be furnishe
33、d.7.4.2 The permissible variations in length of multiple,nominal, or cut length rod shall be as prescribed in Table 6.Where rods are ordered in multiple lengths, a14-in. (6.35-mm)length addition shall be allowed for each uncut multiple length.7.5 Ends:7.5.1 Rods ordered to random or nominal lengths
34、shall befurnished with either cropped or sawed ends.7.5.2 Rods ordered to cut lengths shall be furnished withsquare sawcut or machined ends.7.6 WeightFor calculations of mass or weight, the follow-ing densities shall be used:Alloy Densitylb/in.3g/cm3N10276 0.321 8.87N06022 0.314 8.69N06035 0.296 8.1
35、8N06044 0.287 7.97N06455 0.312 8.64N06058 0.318 8.80N06059 0.311 8.60N06200 0.307 8.50N10362 0.319 8.83N06686 0.315 8.73N06210 0.316 8.767.7 StraightnessThe maximum curvature (depth of chord)shall not exceed 0.050 in. multiplied by the length of the chordin feet (0.04 mm multiplied by the length in
36、centimetres).8. Workmanship, Finish, and Appearance8.1 The material shall be uniform in quality and condition,smooth, and free of injurious imperfections.9. Sampling9.1 Lots for Chemical Analysis and Mechanical Testing:9.1.1 A lot for chemical analysis shall consist of one heat.9.1.2 A lot of bar fo
37、r mechanical testing shall be defined asthe material from one heat in the same condition and specifieddiameter.9.2 Sampling for Chemical Analysis:9.2.1 A representative sample shall be obtained from eachheat during pouring or subsequent processing.9.2.2 Product (check) analysis shall be wholly the r
38、espon-sibility of the purchaser.9.3 Sampling for Mechanical TestingA representativesample shall be taken from each lot of finished material.10. Number of Tests and Retests10.1 Chemical AnalysisOne test per heat.10.2 Tension TestsOne test per lot.10.3 RetestsIf the specimen used in the mechanical tes
39、t ofany lot fails to meet the specified requirements, two additionalspecimens shall be taken from different sample pieces andtested. The results of the tests on both of these specimens shallmeet the specified requirements.11. Specimen Preparation11.1 Tension test specimens shall be taken from materi
40、alafter final heat-treatment and tested in the direction of fabri-cation.11.2 Tension test specimens shall be any of the standard orsubsized specimens shown in Test Methods E8/E8M.11.3 In the event of disagreement, the referee specimenshall be the largest possible round specimen shown in TestMethods
41、 E8/E8M.TABLE 6 Permissible Variations in Length of RodsRandom mill lengths 2 to 12 ft (610 to 3660 mm) long with not morethan 25 weight % under 4 ft (1.22 m).Multiple lengths Furnished in multiples of a specified unit length, withinthe length limits indicated above. Foreach multiple, an allowance o
42、f14 in. (6.35mm) shall be made for cutting, unlessotherwise specified. At the manufacturersoption, individual specified unit lengths may befurnished.Nominal lengths Specified nominal lengths having a range of notless than 2 ft (610 mm) with no short lengthsallowed.Cut lengths A specified length to w
43、hich all rods shall be cutwith a permissible variation of 18 in. (3.17mm) 0.B574 18412. Test Methods12.1 The chemical composition and mechanical propertiesof the material as enumerated in this specification shall bedetermined, in case of disagreement, in accordance with thefollowing ASTM methods:12.
44、1.1 Chemical AnalysisTest Methods E1473, For ele-ments not covered by Test Methods E1473, the referee methodshall be as agreed upon between the manufacturer and thepurchaser. The nickel composition shall be determined arith-metically by difference.12.1.2 Tension TestTest Methods E8/E8M.12.1.3 Method
45、 of SamplingPractice E55.12.1.4 Determining Significant PlacesPractice E29.12.2 For purposes of determining compliance with thelimits in this specification, an observed value or a calculatedvalue shall be rounded in accordance with the rounding methodof Practice E29:Requirements Rounded Unit for Obs
46、erved orCalculated ValueChemical composition andtolerancesnearest unit in the last right-hand place offigures of the specified limitTensile strength and yieldstrengthnearest 1000 psi (7 MPa)Elongation nearest 1 %13. Inspection13.1 Inspection of the material shall be made as agreed uponby the manufac
47、turer and the purchaser as part of the purchasecontract.14. Rejection and Rehearing14.1 Material that fails to conform to the requirements ofthis specification may be rejected. Rejection should be reportedto the producer or supplier promptly and in writing. In case ofdissatisfaction with the results
48、 of the test, the producer orsupplier may make claim for a rehearing.15. Certification15.1 When specified in the purchase order or contract, amanufacturers certification shall be furnished to the purchaserstating that material has been manufactured, tested, and in-spected in accordance with this spe
49、cification, and that the testresults on representative samples meet specification require-ments. When specified in the purchase order or contract, areport of the test results shall be furnished.16. Product Marking16.1 Each piece of material12 in. (12.7 mm) and over indiameter shall be marked with the specification number, alloy,heat number, manufacturers identification, and size. Themarkings shall have no deleterious effect on the material or itspe
