1.1 This specification covers cold-rolled, complex phase (CP) grade, dual phase (DP) grade, and transformation-induced plasticity (TRIP) grade steel sheet in coils and cut lengths. 1.2 Product furnished under this specification shall conform to the applicable requirements of the latest issue of Specification A568/A568M unless otherwise provided herein. 1.3 The product is available in a number of designations and grades with mandatory chemical requirements and mandatory mechanical properties that are achieved through thermal or thermal-mechanical treatments and are designed to be compatible with automotive application requirements. 1.4 The grade designation nomenclature of the product differs from other cold-rolled sheet products having mandatory mechanical properties in that ordering is to tensile, rather than yield strength values. 1.5 The values stated in SI units are to be regarded as the standard. 1.6 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes, excluding those in tables and figures, shall not be considered as requirements of this specification. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
A new zinc-coated sheet standard (A1079) was recently published for advanced high-strength steels. These new types of steel sheet are used almost exclusively by the automotive industry. This market also has a need for this product in the uncoated condition and possibly as a substrate for EG coated sheet. This ballot proposes to create a product standard for the uncoated, cold-rolled version of these steels based on A1079-2013.
Keywordscold-rolled sheet; complex phase steel; dual phase steel; steel; steel sheet; transformation-induced plasticity steel
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Ballot Item Approved as A1088-2013 and Pending Publication