1、Designation:A60092a(Reapproved 2016)Standard Specification forTool Steel High Speed1This standard is issued under the fixed designation A600;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 parent
2、heses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 Thisspecificationcoverstungsten-typeandmolybdenum-type high-speed stee
3、ls available as annealed,hot-rolled bars,forgings,plate,sheet,or strip,and annealed,cold-finished bars or forgings used primarily in the fabricationof tools.1.2 Seven types of tungsten high-speed tool steels desig-nated T1,T2,etc.,seventeen types of molybdenum high-speedtool steels designated M1,M2,
4、etc.,and two intermediate highspeed steels designated as M50 and M52 are covered.Selectionwill depend upon design,service conditions,and mechanicalproperties.1.3 The term“high-speed steel”is described and its mini-mum requirements are covered in the Annex.1.4 The values stated in inch-pound units ar
5、e to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA388/A388M Prac
6、tice for Ultrasonic Examination of SteelForgingsA561 Practice for Macroetch Testing of Tool Steel BarsA700 Guide for Packaging,Marking,and Loading Methodsfor Steel Products for ShipmentE3 Guide for Preparation of Metallographic SpecimensE30 Test Methods for ChemicalAnalysis of Steel,Cast Iron,Open-H
7、earth Iron,and Wrought Iron(Withdrawn 1995)3E45 Test Methods for Determining the Inclusion Content ofSteelE59 Practice for Sampling Steel and Iron for Determinationof Chemical Composition(Withdrawn 1996)32.2 Military Standard:MIL-STD-163 Steel Mill Products,Preparation for Ship-ment and Storage42.3
8、Federal Standards:Fed.Std.No.123 Marking for Shipment(Civil Agencies)4Fed.Std.No.183 Continuous Identification Marking of Ironand Steel Products43.Classification3.1 Material in accordance with this specification is classi-fied by chemical composition.Types correspond to respectiveAISI designations.3
9、.1.1 Types T1,T2,T4,T5,T6,T8,and T15 are character-ized by a controlled high tungsten content along with otheralloying elements.3.1.2 Types M1,M2,M3,M4,M6,M7,M10,M30,M33,M34,M36,M41,M42,M43,M44,M46,M47,M48,and M62are characterized by a controlled high molybdenum contentalong with other alloying elem
10、ents.3.1.3 Types M2,M3,and M10 are further classified accord-ing to carbon range.Type M3 is further classified according tovanadium range.3.1.4 Types M50 and M52 are considered intermediate highspeed steels in view of their lower total alloy content than thestandard types.These leaner alloy grades n
11、ormally are limitedto less severe service conditions.4.Ordering Information4.1 Orders for material under this specification shall includethe following information,as required to describe adequatelythe desired material:4.1.1 Name of material(high-speed tool steel),4.1.2 Type,1This specification is un
12、der the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.29 on Tool Steels.Current edition approved March 1,2016.Published June 2016.Originallyapproved in 1969.Last previous edition approved in 2010 as A600 92a(2010).D
13、OI:10.1520/A0600-92AR16.2For 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.3The last approved version of this histori
14、cal standard is referenced onwww.astm.org.4Available from DLA Document Services,Building 4/D,700 Robbins Avenue,Philadelphia,PA 19111-5094,http:/quicksearch.dla.mil.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.1.3 Shape(sheet,strip,p
15、late,flat bar,round bar,squarebar,hexagon bar,octagon,special shapes),4.1.4 Dimensions(thickness,width,diameter,length).(Forcoils,include the minimum inside diameter or inside diameterrange,the maximum outside diameter,and maximum orminimum coil weight if required.(Minimum coil weights aresubject to
16、 negotiation.),4.1.5 Finish(hot rolled,forged,blasted or pickled,colddrawn,rough machined,ground,precision ground andpolished),4.1.6 Condition(annealed),4.1.7 ASTM designation and date of issue,and4.1.8 Special or supplementary requirements.5.Materials and Manufacture5.1 Unless otherwise specified,material covered by thisspecification shall be made by an electric melting process.6.Chemical Composition6.1 An analysis of each heat of steel shall be made by themanufacturer to determine the percenta
