Standard Specification for Steel, Sheet, Cold-Rolled, Complex Phase (CP), Dual Phase (DP) and Transformation Induced Plasticity (TRIP)
This specification is intended for cold-rolled, complex phase (CP) grade, dual phase (DP) grade, and transformation induced plasticity (TRIP) grade steel sheet in coils and cut lengths. Cold-rolled steel sheet is supplied for either exposed or unexposed applications, and specified either "temper rolled" or "annealed last" in the case of the latter category. The specification covers ordering information necessary to describe the required material, as well as the material's chemical composition, mechanical properties, finish and appearance, and dimensions and permissible variations. Retests and disposition of non-conforming material are also addressed.
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 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.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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. Some specific hazards statements are given in Section 7 on Hazards.
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