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1.1 This specification covers hot- and cold-finished alloy steel bars, having a chromium content equal to or less than 11.0% including rounds, squares, hexagons, and hot-rolled or extruded shapes for use in corrosion and heat-resisting service.
1.2 Some steels covered by this specification, especially the high silicon-containing steels, because of their particular alloy content and specialized properties, may require special care in their fabrication and welding. Specific procedures are of fundamental importance, and it is presupposed that all parameters will be in accordance with approved test methods capable of producing the desired properties in the finished fabrication.
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.
1.4 This specification and the applicable material specifications are expressed in both inch-pound and SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished in inch-pound units.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
SAE StandardSAE J 1086 Recommended Practice for Numbering Metals and Alloys Available from Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.
ICS Number Code 77.120.01 (Non-ferrous metals in general)