ASTM-A600-1992-Standard-Specification-for-High-Speed-Tool-Steel

Designation:A 600-92a (Reapproved 2004)NTERNATIONALStandard Specification forTool Steel High Speed1This standard is issued under the fixed designation A 600;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 last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope2.2 Military Standard:1.1 This specification covers tungsten-type andMIL-STD-163 Steel Mill Products,Preparation for Ship-molybdenum-type high-speed steels available as annealed,ment and Storage3hot-rolled bars,forgings,plate,sheet,or strip,and annealed,2.3 Federal Standards:cold-finished bars or forgings used primarily in the fabricationFed.Std.No.123 Marking for Shipment (Civil Agencies)3of tools.Fed.Std.No.183 Continuous Identification Marking of1.2 Seven types of tungsten high-speed tool steels desig-Iron and Steel Products3nated T1,T2,etc.,seventeen types of molybdenum high-speed3.Classificationtool steels designated M1.M2,etc.,and two intermediate highspeed steels designated as M50 and M52 are covered.Selection3.1 Material in accordance with this specification is classi-will depend upon design,service conditions,and mechanicalfied by chemical composition.Types correspond to respectiveproperties.AISI designations.1.3 The term "high-speed steel"is described and its mini-3.1.1 Types T1,T2,T4,T5,T6,T8,and T15 are character-mum requirements are covered in the Annex.ized by a controlled high tungsten content along with other1.4 The values stated in inch-pound units are to be regardedalloying elements.as the standard.The values given in parentheses are provided3.1.2 Types M1,M2,M3,M4,M6,M7,M10,M30,M33,for information only.M34,M36,M41,M42,M43,M44,M46,M47,M48,andM62are characterized by a controlled high molybdenum content2.Referenced Documentsalong with other alloying elements.2.1 ASTM Standards:23.1.3 Types M2,M3,and M10 are further classified accord-A 370 Test Methods and Definitions for Mechanical Testinging to carbon range.Type M3 is further classified according toof Steel Productsvanadium range.A 388/A 388M Practice for Ultrasonic Examination of3.1.4 Types M50 and M52 are considered intermediate highHeavy Steel Forgingsspeed steels in view of their lower total alloy content than theA 561 Practice for Macroetch Testing of Tool Steel Barsstandard types.These leaner alloy grades nommally are limitedA 700 Practices for Packaging,Marking,and Loadingto less severe service conditions.Methods for Steel Products for Domestic Shipment4.Ordering InformationE 3 Methods of Preparation of Metallographic SpecimensE 30 Test Methods for Chemical Analysis of Steel.Cast4.1 Orders for material under this specification shall includeIron,Open-Hearth Iron,and Wrought Ironthe following information,as required to describe adequatelyE45 Prac