【国外标准】 Standard Specification for Steel Bars, Carbon, Hot-Wrought or Cold-Finished, Special Quality, for Pressure Piping Components

This specification covers hot-wrought and cold-finished special quality carbon steel bars, in straight lengths only, subject to mechanical property requirements and intended for use in manufacturing components for pressure piping and other pressure-containing applications. The steel bars are furnished in Grade B and Grade C and shall be made by melting, deoxidation, hot and cold working, heat treatment, and shall have special quality. Heat and product analyses shall be performed on the material and the chemical composition shall conform to the values required in carbon, manganese, phosphorus, sulfur, silicon, and lead. The carbon steel shall undergo tensile testing and conform to the required tensile strength, yield strength, and elongation.1.1 This specification2 covers hot-wrought and cold-finished special quality carbon steel bars, in straight lengths only, subject to mechanical property requirements and intended for use in manufacturing components for pressure piping and other pressure-containing applications.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.