1、Designation: A1082/A1082M 15A1082/A1082M 16Standard Specification forHigh Strength Precipitation Hardening and Duplex StainlessSteel Bolting for Special Purpose Applications1This standard is issued under the fixed designation A1082/A1082M; the number immediately following the designation indicates t
2、heyear of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers high strength stainles
3、s steel bolting materials and bolting components for special purposeapplications such as pressure vessels. Several grades of precipitation-hardened and duplex (ferritic-austenitic) stainless steels arecovered. Selection will depend upon design, service conditions, mechanical properties and character
4、istics related to the application.1.2 The following referenced general requirements are indispensable for application of this specification: SpecificationA962/A962M.1.3 Supplementary Requirements are provided for use at the option of the purchaser. The Supplementary Requirements shallonly apply when
5、 specified individually by the purchaser in the purchase order or contract.1.4 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contractspecifies the applicable “M” specification designation (SI units), the inch-pound units shall apply.1
6、.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI unitsare shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be usedindependently of the other. Combining values f
7、rom the two systems may result in non-conformance with the standard.1.6 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 establish appropriate safety and health practices and determine the a
8、pplicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A276/A276M Specification for Stainless Steel Bars and ShapesA370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA479/A479M Specification for Stainless Steel Bars and Shapes for Use in
9、Boilers and Other Pressure VesselsA564/A564M Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and ShapesA959/A959M Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless SteelsA962/A962M Specification for Common Requirements for Bolting Int
10、ended for Use atAny Temperature from Cryogenic to theCreep Range2.2 ASNT Documents:3ASNT SNT-TC-1A Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing3. Ordering Information3.1 The inquiry and order shall indicate the following, as required, to describe the d
11、esired material adequately:3.1.1 Quantity (weight or number of pieces),3.1.2 Description of item (bars, bolts, nuts, etc.),3.1.3 UNS Designation or Type (see Table 1),1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct res
12、ponsibility of Subcommittee A01.22on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.Current edition approved April 1, 2015May 1, 2016. Published April 2015June 2016. Originally approved in 2012. Last previous edition appr
13、oved in 20122015 asA1082/A1082M 12.A1082/A1082M 15. DOI: 10.1520/A1082/A1082M-15.10.1520/A1082/A1082M-16.2 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 standard
14、s Document Summary page on the ASTM website.3 Available from American Society for Nondestructive Testing (ASNT), P.O. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http:/www.asnt.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indic
15、ation 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 co
16、nsidered 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 States13.1.4 Heat-Treat Condition (see 7.1.1),3.1.5 Dimension/Threads, etc. (see the section in S
17、pecification A962/A962M titled “Workmanship, Finish, and Appearance”),and3.1.6 Supplementary Requirements, if any.4. Common Requirements4.1 Bolting materials and components supplied to this specification shall conform to the requirements of SpecificationA962/A962M. These requirements include test me
18、thods, finish, thread dimensions, marking, terminology, testing, certification,optional supplementary requirements, and others. Failure to comply with the requirements of Specification A962/A962Mconstitutes nonconformance with this specification. In case of conflict between the requirements of this
19、specification andSpecification A962/A962M, this specification shall prevail.TABLE 1 Chemical RequirementsAUNSDesignationB TypeB Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Other ElementsDuplex (Ferritic-Austenitic) GradesS31100 0.06 1.00 0.045 0.030 1.00 25.0-27.0
20、6.0-7.0 Ti 0.25S31260 0.030 1.00 0.030 0.030 0.75 24.0-26.0 5.5-7.5 2.5-3.5 0.10-0.30 Cu 0.20-0.80,W 0.10-0.50S31803 0.030 2.00 0.030 0.020 1.00 21.0-23.0 4.5-6.5 2.5-3.5 0.08-0.20 S32101 0.040 4.0-6.0 0.040 0.030 1.00 21.0-22.0 1.35-1.70 0.10-0.80 0.20-0.25 Cu 0.10-0.80S32202 0.030 2.00 0.040 0.010
21、 1.00 21.5-24.0 1.0-2.80 0.45 0.18-0.26 S32205 2205 0.030 2.00 0.030 0.020 1.00 22.0-23.0 4.5-6.5 3.0-3.5 0.14-0.20S32304 2304 0.030 2.50 0.040 0.030 1.00 21.5-24.5 3.0-5.5 0.05-0.60 0.05-0.20 Cu 0.05-0.60S32506 0.030 1.00 0.040 0.015 0.90 24.0-26.0 5.5-7.2 3.0-3.5 0.08-2.0 W 0.05-0.30S32550 255 0.0
22、40 1.50 0.040 0.030 1.00 24.0-27.0 4.5-6.5 2.9-3.9 0.10-0.25 Cu 1.50-2.50S32750 2507 0.030 1.20 0.035 0.020 0.80 24.0-26.0 6.0-8.0 3.0-5.0 0.24-0.32 Cu 0.50S32760 0.030 1.00 0.030 0.010 1.00 24.0-26.0 6.0-8.0 3.0-4.0 0.20-0.30 Cu 0.50-1.00,W 0.50-1.00,%Cr+3.3x%Mo+16x%N$40S32906 0.030 0.80-1.50 0.030
23、 0.030 0.50 28.0-30.0 5.8-7.5 1.50-2.60 0.30-0.40 Cu 0.80S32950 0.030 2.00 0.035 0.010 0.60 26.0-29.0 3.5-5.2 1.00-2.50 0.15-0.35S39277 0.025 0.80 0.025 0.002 0.80 24.0-26.0 6.5-8.0 3.0-4.0 0.23-.033 Cu 1.20-2.00,W 0.80-1.20Precipitation Hardening GradesS15700 632 0.09 1.00 0.040 0.030 1.00 14.0-16.
24、0 6.5-7.7 2.00-3.00 Al 0.75-1.50S17400 630 0.07 1.00 0.040 0.030 1.00 15.0-17.0 3.0-5.0 Cu 3.0-5.0,Cb +Ta 0.15-0.45S17600 635 0.08 1.00 0.040 0.030 1.00 16.0-17.5 6.0-7.5 Al 0.40,Ti 0.40-1.20S17700 631 0.09 1.00 0.040 0.030 1.00 16.0-18.0 6.5-7.7 Al 0.75-1.50S35500 634 0.10-0.15 0.50-1.25 0.040 0.03
25、0 0.50 15.0-16.0 4.0-5.0 2.5-3.2 0.07-0.13 Cb 0.10-0.50A Maximum or range unless otherwise indicated.B See Guide A959/A959M.TABLE 2 Solution Treatment and Mechanical Property Requirements for PH GradesAUNSDesignation TypeSolutionTreatmentB,CF CMechanical Property Requirements in the Solution Treated
26、 ConditionTensileStrengthksi MPaYield Strengthksi MPaElongationin 2”50 mmor 4D,min. %Reductionof Area,min. %HardnessDRockwell,maximumBrinell,maximumS15700 632 100 HRB 269S17400 630 Cool to below90 32 38 HRC 363S17600 635 Air Cool 120 825 75 515 10 45 32 HRC 302S17700 631 98 HRB 229S35500 634 Hold at
27、 # -100-73 for atleast 3 hours 363A Values shown are minimums or ranges unless maximum is indicated.B 1900 1040 25F 15C.C Quenched in water unless the table specifies another media.D Either Rockwell or Brinell testing is permitted unless thickness is below 12 ” in which case Rockwell is preferred.A1
28、082/A1082M 1625. Materials and Manufacture5.1 Bars shall be produced in accordance with Specifications A276/A276M, A479/A479M or A564/A564M as applicable.Finish (hot or cold, ground, rough turned, drawn, etc.) shall be at the option of the manufacturer unless otherwise specified in thepurchase order
29、 or contract.5.2 Fasteners Bolting components shall be produced in accordance with this specification and the requirements of SpecificationA962/A962M.6. Chemical Composition6.1 Each alloy shall conform to the chemical composition requirements prescribed in Table 1.7. Heat Treatment7.1 Precipitation
30、Hardening (PH) Stainless Steels:7.1.1 Bolting materials ordered to a Type or UNS designation only shall be furnished in the solution treated condition inaccordance with Table 2 or Table 3. Age hardened bolting materials ordered to both a Type and Condition shall meet therequirements of Table 3.7.2 D
31、uplex (Ferritic-Austenitic) Stainless Steels:7.2.1 Duplex Stainless (Ferritic-Austenitic) Steels shall be furnished in the solution-annealed condition as noted in Table 4.8. Mechanical Properties8.1 Samples taken from product (see the section in Specification A962/A962M titled “Mechanical Properties
32、”) shall conformto the mechanical properties of Tables 2-4.TABLE 3 Age Hardening Heat Treatment and Mechanical Property Requirements for PH GradesAType ConditionSuggested Hardeningand/or AgingTemperatures, Timeat Temperature,and Quench MediaF CB,C,D,EMaximumThicknessinch mminclusiveMechanical Proper
33、tiesTensileStrengthksi MPAYieldStrengthksi MPAElongationin 2”50 mmor 4D%Reductionof Area,%HardnessFImpactFt-lbf JRockwell,HRC Brinell630 H900 900 480, 1 hour 8 190 1310 170 1170 10 35 40 388 630 H925 925 495, 4 hours 8 170 1170 155 1070 10 38 38 375 5 6.8630 H1025 1025 550, 4 hours 8 155 1070 145 10
34、00 12 45 35 331 15 20630 H1075 1075 580, 4 hours 8 145 1000 125 860 13 45 32 311 20 27630 H1100 1100 595, 4 hours 8 140 965 115 795 14 45 31 302 25 34630 H1150 1150 620, 4 hours 8 135 930 105 725 16 50 28 277 30 41630 H1150D 1150 620 for 4 hrs., air cool plus1150 620 for 4 hrs., air cool8 125 860 10
35、5 725 16 50 24-33 255-311 30 41630 H1150M 1400 760 for 2 hrs., air cool plus1150 620 for 4 hrs., air cool8 115 795 75 520 18 55 24 255 55 75631 RH950 1750 955 for 10 min. to 1 h,rapidly cool to room temperature.Cool within 24 hrs. to -100 10-75 5, hold 8 hrs. min. Warmin air to room temperature. Hea
36、tto 950 510 hold 1 h, air cool.4 185 1280 150 1030 6 10 41 388 631 TH1050 1400 760 for 90 min. Cool to 55 5 15 3 within 1 h, hold 12 hmin., heat to 1050 565, hold for90 min., air cool6 170 1170 140 965 6 25 38 352 632 RH950 Same as Type 631 4 200 1380 175 1210 7 25 44 415 632 TH1050 Same as Type 631
37、 6 180 1240 160 1100 8 25 38 375 634 H1000 1750 955 for 10 min. to 1 h,water quench. Cool to -100 75min., hold 3 hrs. min. Temper at1000 540 hold for 3 h min, aircool. 170 1170 155 1070 12 25 37 341 635 H950 950 510, 12 h 190 1310 170 1170 8 25 39 363 635 H1000 1000 540, 12 h 180 1240 160 1100 8 30
38、37 352 635 H1050 1050 565, 12 h 170 1170 150 1035 10 40 35 331 A Values shown are minimums or ranges unless maximum is indicated.B 25F 15CC Temperatures are suggested and may be varied to obtain the required tensile properties.D Time refers to the minimum time the material is at temperature and may
39、be extended to obtain required ductility properties.E Quenching shall be accomplished using air or gas cooling unless the table specifies another media.F Either Rockwell or Brinell testing is permitted unless thickness is below 12 ” in which case Rockwell is preferred.A1082/A1082M 1638.2 Age Hardene
40、d Material hardened bolting material shall be capable of meeting the requirements prescribed in Table 3.Impact testing is required when S1 is invoked in the purchase order or contract.8.3 Number of Tests:8.3.1 Bolting MaterialSee 8.4 for hardness testing of bar. See the section in Specification A962
41、/A962M titled “Number ofTests” for all other tests except those covered in 8.3.2.8.3.2 Full Size FastenersBolting ComponentsHeaded fasteners bolts with a 112 in. 37 mm body diameter and smaller, witha body length three times the diameter or longer and a required maximum tensile load of 160 000 lb/f
42、705 kN, produced byupsetting or forging (hot or cold) shall be subjected to full size testing.The testing shall be in addition to the tensile testing specifiedin 8.3.1. The lot size shall be as shown in Specification A962/A962M (see the section titled Number of Tests). Failure shall occurin the body
43、 or threaded section with no failure, or indications of failure, such as cracks, at the junction of the head and shank.Wedge tensile testing is not required for flat countersunk head or socket button products.8.4 Hardness Test:8.4.1 Bolting Material Bars 2 in. 50 mm and OverOne test on each mill-tre
44、ated length.8.4.2 Bolting Material Bars Under 2 in. 50 mmOne test on at least 10 % of the mill treated lengths.9. Nuts9.1 Nuts made from the grades listed in this specification shall be furnished when specified in the purchase order. Themechanical test requirements of Section 8 apply in addition to
45、requirements specified in the purchase order or contract. Hardnesstesting shall be done following the completion of all production heat treatment operations. See S5 for proof load testing and S6for cross-sectional hardness testing.10. Certification10.1 Certification is required. In addition to the r
46、equirements of A962/A962M (see the section in A962/A962M titled“Certification”), the report shall include results of the chemical analysis, mechanical tests and state the method of heat treatmentemployed.11. Product Marking11.1 See A962/A962M. The grade symbol shall be as shown in Table 5.12. Keywor
47、ds12.1 age-hardening stainless steel; boltsstainless steel; duplex stainless steel; fastenersstainless bolting componentsstainlesssteel; high strength stainless steels; marking; nuts; precipitation hardening stainless steel; stainless steel bars; stainless steelfastenersbolting componentsTABLE 4 Hea
48、t Treatment and Mechanical Property Requirements for Duplex GradesAUNSDesignationSolutionTemperature,F CB,CSize RangeMechanical PropertiesTensileStrength,ksi MPAYieldStrength,ksi MPAElongation in 2”50 mm or 4D%HardnessDRockwell, HRCmaximumBrinell,maximumS31100 1900 1040 90 620 65 450 20 30 290S31260 1870 to 20101020 to 1100 100 690 70 485 20 31 297S31803 1900 1040 90 620 65 450 25 30 290S32101 1870 1020 94 650 65 450 30 30 290S32202 1800 to 1975980 to 1080 94 650 65 450 30 30 290S32205 1900 1040 95 655 65 450 25 30 290S32304 1800
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