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ASTM A635/A635M 2015 Edition, November 1, 2015
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Standard Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon, Structural, High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, General Requirements for
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This specification covers the general requirements for hot-rolled, heavy-thickness sheet and strip in coils.

It applies to Specifications A414/A414M, A424/ A424M, and A1018/A1018M.

NOTE 1—The changes in width limits with the publication of A635/ A635M – 06a result in a change in tensile testing direction for material from 0.180 in. [4.5 mm] to 0.230 in. exclusive [6.0 mm exclusive] over 48 in. [1200 mm] wide, as that material is now covered by Specification A568/A568M – 06a. The purchaser is advised to discuss this change with the supplier.

In case of any conflict in requirements, the requirements of the individual material specification shall prevail over those of this general specification.

Annex A1 lists permissible variations in dimensions and mass (see Note 2) in SI [metric] units. The values listed are not exact conversions of the values listed in the inch-pound tables, but instead are rounded or rationalized values. Conformance to Annex A1 is mandatory when the “M” specification is used.

NOTE 2—The term weight is used when inch-pound units are the standard. However, under SI, the preferred term ismass.

The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

This specification and the applicable material specifications are expressed in both inch-pound units and SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.

*A Summary of Changes section appears at the end of this standard