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Designation:A 564/A 564M 04Standard Specification forHot-Rolled and Cold-Finished Age-Hardening Stainless SteelBars and Shapes1This standard is issued under the fixed designationA 564/A 564M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon(e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This specification2covers bars and shapes of age-hardening stainless steels.Hot-finished or cold-finished rounds,squares,hexagons,bar shapes,angles,tees,and channels areincluded;these shapes may be produced by hot rolling,extruding,or forging.Billets or bars for reforging may bepurchased to this specification.1.2 These steels are generally used for parts requiringcorrosion resistance and high strength at room temperature,orat temperatures up to 600F 315C;700F 370C for Type632;840F 450C for Type UNS S46910.They are suitablefor machining in the solution-annealed condition after whichthey may be age-hardened to the mechanical properties speci-fied in Section 7 without danger of cracking or distortion.TypeXM-25 is machinable in the as-received fully heat treatedcondition.Type UNS S46910 is suitable for machining in thesolution-annealed,cold-worked,and aged-hardened condition.1.3 Types 631 and 632 contain a large amount of ferrite inthe microstructure and can have low ductility in forgings andlarger diameter bars.Applications should be limited to smalldiameter bar.1.4 The values stated in either inch-pound units or SI(metric)units are to be regarded separately as standards;withinthe text and tables,the SI units are shown in brackets.Thevalues stated in each system are not exact equivalents;there-fore,each system must be used independent of the other.Combining values from the two systems may result in noncon-formance with the specification.1.5 Unless the order specifies an“M designation,thematerial shall be furnished to inch-pound units.NOTE1For forgings,see Specification A 705/A 705M.NOTE2For billets and bars for forging see Specification A 314.2.Referenced Documents2.1 ASTM Standards:3A 314 Specification for Stainless Steel Billets and Bars forForgingA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 484/A 484M Specification for General Requirements forStainless Steel Bars,Billets,and ForgingsA 705/A 705M Specification for Age-Hardening,StainlessSteel ForgingsA 751 Test Methods,Practices,and Terminology forChemical Analysis of Steel ProductsE 527 Practice for Numbering Metals and Alloys(UNS)2.2Other Documents:SAE J1086 Recommended Practice for Numbering Metalsand Alloys(UNS)43.Ordering Information3.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification.Such requirements may include but are notlimited to the following:3.1.1 Quantity(weight or number of pieces),3.1.2 Type or UNS designation(Table 1),3.1.3 Specific melt type when required,3.1.4 Heat treated condition(5.1),3.1.5 Transverse properties when required(7.6),3.1.6 Finish(Specification A 484/A 484M),3.1.7 Surface preparation of shapes(5.2.1),3.1.8 Size,or applicable dimension including diameter,thickness,width,length,etc.,3.1.9 Preparation for delivery(Specification A 484/A 484M),18This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel,and Related Alloys and is the direct responsibility of SubcommitteeA01.17 on Flat Stainless Steel Products.Current edition approved March 1,2004.Published March 2004.Originallyapproved in 1966.Last previous edition approved in 2002 as A 564/A 564M 02a.2For ASME Boiler and Pressure Vessel Code applications,see related Specifi-cation SA-564/SA-564M in Section II of that Code.3For referenced ASTM standards,visit the ASTM website,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.4Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Copyright by ASTM Intl(all rights reserved);Reproduction authorized per License Agreement with ERIKA ROYVAL(DELPHI CORPORATION);Fri Feb 17 16:51:25 EST 20063.1.10 Special requirements(refer to 7.4 and 8.3),3.1.11 Markingrequirements(SpecificationA 484/A 484M),and3.1.12 ASTM designation and date of issue if other than thatcurrently published.3.2 If possible,the intended use of the item should be givenon the purchase order especially when the item is ordered fora specific end use or uses.NOTE3Atypical ordering description is as follows:5000 lb 2270 kgType 630,Solution-Annealed Cold Finished Centerless Ground,112in.38.0 mm round bar,10 to 12 ft 3.0 to 3.6 m in length,ASTM A 564dated _.End use:valve shafts.4.General Requirements4.1 In addition to the requirements of this specification,allrequirements of the current edition of Specifications A 484/A 484M shall apply.Failure to comply with the generalrequirements of Specification A 484/A 484M constitutes non-conformance with this specification.5.Materials and Manufacture5.1Heat Treatment and Condition:5.1.1 Material of types other than XM-16,XM-25,and Type630 shall be furnished in the solution-annealed condition,or inthe equalized and oven-tempered condition,as noted in Table2,unless otherwise specified by the purchaser.5.1.1.1 Types 630,XM-16,and XM-25 may be furnished inthe solution-annealed or age-hardened condition.5.1.2 Type UNS S46910 shall be funished in solution-annealed condition per Table 2,or solution-annealed andcold-worked condition per Table 3,or aged-hardened conditionper Table 4.5.1.3 Reforging stock shall be supplied in a condition ofheat treatment to be selected by the forging manufacturer.5.2 Shapes may be subjected to either Class A or Class Cpreparation as specified on the purchase order.5.2.1 Class A consists of preparation by grinding for theremoval of imperfections of a hazardous nature such as fins,tears,and jagged edges provided the underweight tolerance isnot exceeded and the maximum depth of grinding at any onepoint does not exceed 10%of the thickness of the section.5.2.2 Class C consists of preparation by grinding for theremoval of all visible surface imperfections provided theunderweight tolerance is not exceeded and the maximum depthof grinding at any one point does not exceed 10%of thethickness of the section.6.Chemical Composition6.1 Each alloy covered by this specification shall conform tothe chemical requirements specified in Table 1.6.2 Methods and practices relating to chemical analysisrequired by this specification shall be in accordance with TestMethods,Practices,and Terminology A 751.7.Mechanical Properties Requirements7.1 The material,as represented by mechanical test speci-mens,shall conform to the mechanical property requirementsspecified in Table 2 or Table 3 and shall be capable ofdeveloping the properties in Table 4 when heat treated asspecified in 5.1.7.2 Samples cut from bars for forging stock shall conform tothe mechanical properties of Table 2 and Table 4 when heattreated as specified in Table 2 and Table 4.7.3 The yield strength shall be determined by the offsetmethod as described in the current edition of Test Methods andDefinitionsA 370.The limiting permanent offset shall be 0.2%of the gage length of the specimen.7.4 The impact requirement shall apply only when specifiedin the purchase order.When specified,the material,as repre-sented by impact test specimens,shall be capable of develop-ing the impact property requirements specified in Table 4 whenheat treated in accordance with 5.1.7.5 Longitudinal impact requirements are not applicable tobars less than58in.(16.9 mm)diameter or size or flats lessthan58in.(16.9 mm)thick.TABLE 1Chemical RequirementsAComposition,%UNSDesignationBTypeCarbonManganesePhospho-rusSul-furSili-conChromiumNickelAlumi-numMolyb-denumTitaniumCopperOtherElementsS174006300.071.000.0400.0301.0015.0017.503.005.00.3.005.00CS177006310.091.000.0400.0301.0016.0018.006.507.750.751.50.S157006320.091.000.0400.0301.0014.0016.006.507.750.751.502.003.00.S355006340.100.150.501.250.0400.0300.5015.0016.004.005.00.2.503.25.DS176006350.081.000.0400.0301.0016.0017.506.007.500.40.0.401.20.S15500XM-120.071.000.0400.0301.0014.0015.503.505.50.2.504.50CS13800XM-130.050.200.0100.0080.1012.2513.257.508.500.901.352.002.50.ES45500XM-160.030.500.0150.0150.5011.0012.507.509.50.0.500.901.40 1.502.50FS45503.0.0100.500.0100.0100.2011.0012.507.509.50.0.501.001.35 1.502.50FS45000XM-250.051.000.0300.0301.0014.0016.005.007.00.0.501.00.1.251.75GS46500.0.020.250.0150.0100.2511.0012.5010.7511.25.0.751.251.501.80.ES46910.0.0301.000.0300.0150.7011.013.08.010.00.150.503.05.00.501.201.53.5.ALimits are in percent maximum unless shown as a range or stated otherwise.BNew designation established in accordance with Practice E 527 and SAE J1086.CColumbium plus tantalum 0.150.45.DNitrogen 0.070.13.ENitrogen 0.01.FColumbium plus tantalum 0.100.50.GColumbium 8 times carbon minimum.A 564/A 564M 042Copyright by ASTM Intl(all rights reserved);Reproduction authorized per License Agreement with ERIKA ROYVAL(DELPHI CORPORATION);Fri Feb 17 16:51:25 EST 20067.6 Tensile and impact requirements in the transverse(through thickness)direction are not applicable to bars lessthan 3 in.75 mm diameter in size or flats less than 3 in.75mm thick.7.7 Material tensile tested and,when specified,impacttested in the transverse(through thickness)direction andmeeting the requirements shown in Table 4 need not be testedin the longitudinal direction.8.Number of Tests8.1 At least one room temperature tension test and one ormore hardness tests shall be made on each lot.8.2 One or more hardness tests and at least one tension testshall be made from each lot on test samples heat treated asrequired in 5.1.Unless otherwise specified in the purchaseorder,the condition of hardening heat treatment shall be at theoption of the producer.The tests shall meet the requirements ofTable 4.8.3 When specified in the purchase order,the impact testshall consist of testing three Charpy V-notch TypeAspecimensin accordance with Methods and Definitions A 370.Thespecimens shall be heat treated in accordance with 5.1.Unlessotherwise specified in the purchase order,the condition ofhardening heat treatment shall be at the option of the producerTABLE 2Solution TreatmentUNSDesig-nationTypeCondi-tionSolution TreatmentMechanical Test Requirements in Solution Treated ConditionATensile Strength,min Yield Strength,minBElongationin 2 in.50mm or 4D,min.%Reductionof Area,min%HardnessCksiMPaksiMPaRockwell C,maxBrinell,maxS17400630A1900 6 25F 1040 6 15C(cool asrequired to below 90F(32C).38363S17700631A1900 6 25F 1040 6 15C(waterquench).HRB98229S15700632A1900 6 25F 1040 6 15C(waterquench).HRB100269DS35500634EA1900 6 25F 1040 6 15C quench,hold not less than 3 h at minus 100For lower.363ES17600635A1900 6 25F 1040 6 15C(air cool)12082575515104532302S15500XM-12A1900 6 25F 1040 6 15C(cool asrequired to below 90F(32C).38363S13800XM-13A1700 6 25F 925 6 15C Cool asrequired to below 60F 16C.38363S45500XM-16A1525 6 25F 830 6 15C(coolrapidly).36331S45000XM-25A1900 6 25F 1040 6 15C(coolrapidly)125F86095655104032321S45503.A1525 6 25F 830 6 15C(coolrapidly).36331S46500A1800 6 25F 980 6 15C(oil orwater quench),hold for min.8 h atminus 100F(73C),air warm.36331S46910.A1830 2050F 1000 1120C(cool rapidly)876005840010.33315ASee 7.1.BSee 7.3.CEither Rockwell C hardness or Brinell is permissible.On sizes in.(12.70 mm)and smaller,Rockwell C is preferred.D321 BH for rounds cold drawn after solution treating.EEqualization and over-tempering treatment 1425 6 50F 775 6 30C for not less than 3 h,cool to room temperature,heat to 1075 6 25F 580 6 15C for not lessthan 3 h.FMaximum 165 ksi 1140 MPa tensile strength only for sizes up to12in.(13 mm).TABLE 3 Solution-Annealed and Cold-Worked ConditionUNSDesignationTypeConditionMechanical Test Requirements in Solution-Annealed and Cold-Worked ConditionTensile Strength,minYield Strength,minElongation in2 in.50 mmor 4D,min%Reduction ofArea,min%HardnessksiMPaksiMPaRockwell C,maxBrinell,maxS46910.CW12hard1319001097508.40380.CW full hard189130017512003.55580A 564/A 564M 043Copyright by ASTM Intl(all rights reserved);Reproduction authorized per License Agreement with ERIKA ROYVAL(DELPHI CORPORATION);Fri Feb 17 16:51:25 EST 2006TABLE 4 Mechanical Test Requirements After Age Hardening Heat TreatmentATypeCondi-tionSuggested Hardening or AgingTreatment,or BothB,C,DApplicableThickness,in.and TestDirectionETensileStrength,minYieldStrength,minFElon-gationin 2 in.50 mmor 4D,min.%Reduc-tion ofarea,min,%HardnessGImpactCharpy-V,minTem-perature,F CTime,hQuenchHksiMPaksiMPaRock-well C,minBrinell,minftlbfJ630H900900 4801.0air coolUp to 3 in.incl75mm(L)19013101701170104040388.Over 3 in.75 mmto 8 in.incl 200mm(T)35H925925 4954.0air coolUp to 3 min.incl75 mm(L)1701170155107010443837556.8Over 3 in.75 mmto 8 in.incl 200mm(T)38H10251025 5504.0air coolUp to 8 in.incl200 mm(L)155107014510001245353311520H10751075 58014510001258601345323112027H11001100 5951409651157951445313022534H11501150 6201359301057251650282773041H1150M1400 760 for 2 h,air cool plus1150 620 for 4 h,air cool115795755201855242555575H1150D1150 620 for 4 h,air cool plus1150 620 for 4 h,air cool12586010572516502433 max255311 max3041631RH9501750F 955C for not less than10 min,but not more than 1 h,cool rapidly to room temperature.Cool within 24 h to minus 100 610F 75C,hold not less than 8h.Warm in air to roomtemperature.Heat to 950F510C,hold 1 h,air cool.Up to 4 in.incl.100 mm(L)1851280150103061041388.TH1050Alternative treatment:1400F760C hold 90 min,cool to 556 5F 15 6 3C within 1 h.Hold not less than 30 min,heatto 1050F 565C hold for 90min,air cool.Up to 6 in.incl150 mm(L)170117014096562538352.632RH950Same as Type 631Up to 4 in.incl100 mm(L)20013801751210725.415.TH1050Up to 6 in.incl150 mm(L)18012401601100825.375.634IH10001750 955 for not less than 10min,but not more than 1 h.Water quench.Cool to not higherthan minus 100F 75C.Holdfor not less than 3 h.Temper at1000F 540C,holding for notless than 3 h.17011701551070122537341.635H950950(510)0.5air cool1901310170117082539363.H10001000 5401801240160110083037352.H10501050 56517011701501035104035331.XM-12H900900 4801.0air coolUp to 12 in.incl300 mm(L)19013101701170103540388.Up to 12 in.incl300 mm(T)615H925925 4954.0air coolUp to 12 in.incl300 mm(L)1701170155107010383837556.8Up to 12 in.incl300 mm(T)720.A 564/A 564M 044Copyright by ASTM Intl(all rights reserved);Reproduction authorized per License Agreement with ERIKA ROYVAL(DELPHI CORPORATION);Fri Feb 17 16:51:25 ES
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