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1.1 This specification covers tungsten-type and molybdenum-type high-speed steels available as annealed, hot-rolled bars, forgings, plate, sheet, or strip, and annealed, cold-finished bars or forgings used primarily in the fabrication of tools.
1.2 Seven types of tungsten high-speed tool steels designated T1, T2, etc., seventeen types of molybdenum high-speed tool steels designated M1, M2, etc., and two intermediate high speed steels designated as
1.3 The term "high-speed steel" is described and its minimum requirements are covered in the Annex.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Military StandardMIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Federal StandardsFed.Std.No.183 Continuous Identification Marking of Iron and Steel Products
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A388/A388M Practice for Ultrasonic Examination of Steel Forgings
A561 Practice for Macroetch Testing of Tool Steel Bars
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
E3 Guide for Preparation of Metallographic Specimens
E30 Test Methods for Chemical Analysis of Steel, Cast Iron, Open-Hearth Iron, and Wrought Iron
E45 Test Methods for Determining the Inclusion Content of Steel
E59 Practice for Sampling Steel and Iron for Determination of Chemical Composition
ICS Number Code 77.140.10 (Heat-treatable steels)
UNSPSC Code 30263800(Tool steel bars); 11171700(High speed steels )