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1.1 This specification covers hot-rolled, heavy thickness coils beyond the size limits of Specifications A 506 and A 507.
1.2 The product is available in three designations: Alloy, Drawing Steel, and Structural Steel.
1.3 Alloy steel is furnished to chemical composition requirements and is intended primarily for general or miscellaneous use where bending and moderate forming is a requirement.
1.4 Drawing steel is produced principally for applications involving severe cold plastic deformation such as deep drawn or severely formed parts.
1.4.1 Drawing steel may be furnished in several conditions, heat treatments, surface finishes, and edges, as specified herein.
1.5 Structural steel is furnished to chemical composition requirements and to specific mechanical property requirements which may include tension tests, hardness tests, or other commonly accepted mechanical tests.
1.5.1 The formability of structural steel decreases with increasing yield strength or hardness. Therefore, product design in relation to the mechanical properties of the grade used must be considered.
1.6 This material is available only in coils described as follows:
|Product||Size Limits, Coils Only|
|Width, in. (mm)||Thickness, in. (mm)|
|Strip||Over 8 to 12, incl||0.230 to 1.000, incl|
|(Over 200 to 300)||(Over 6.0 to 25)|
|Sheet||Over 12 to 48, incl||0.230 to 1.000, incl|
|(Over 300 to 1200)||(Over 6.0 to 25)|
|Sheet||Over 48||0.180 to 1.000, incl|
|(Over 1200)||(Over 4.5 to 25)|
1.7 Sheet and strip in coils of sizes noted in are covered by this specification only with the following provisions:
1.7.1 The material is not to be converted into steel plates for structural or pressure vessel use unless tested in complete accordance with the appropriate sections of Specifications A 6/A 6M (plates provided from coils) or A 20/A 20M (plates produced from coils). A plate produced in this manner is no longer governed by this sheet steel specification and since this material is now plate, the appropriate plate standard must now apply.
1.7.2 The dimensional tolerances of Specification A 635/A 635M are applicable to material produced to this specification.
1.7.3 The material is to be fed directly from coils into a blanking press, drawing or forming operation, tube mill, rolling mill, or sheared or slit into blanks for subsequent drawing or forming.
1.8 The values stated in either inch-pound units and SI units (metric) are to be regarded separately as standard. Within the text the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of each other.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A505 Specification for Steel, Sheet and Strip, Alloy, Hot-Rolled and Cold-Rolled, General Requirements for
A506 Specification for Alloy and Structural Alloy Steel, Sheet and Strip, Hot-Rolled and Cold-Rolled
A507 Specification for Drawing Alloy Steel, Sheet and Strip, Hot-Rolled and Cold-Rolled
A635/A635M Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Carbon, Commercial Steel, Drawing Steel, Structural, High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, Hot-Rolled, General Requirements for
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ICS Number Code 77.140.50 (Flat steel products and semi-products)
UNSPSC Code 30260000(Structural materials)