tailieunhanh - Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels

"Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels" covers relatively thin-walled forgings (including gas bottles) for pressure vessel use. Three types of carbon steel and six types of alloy steel are included. Provision is made for integrally forging the ends of vessel bodies made from seamless pipe or tubing. | 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. Designation A372 A372M 16 Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels1 This standard is issued under the fixed designation A372 A372M the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon indicates an editorial change since the last revision or reapproval. 1. Scope Unless the order specifies the applicable M specifica- 2 This specification covers relatively thin-walled forg- tion designation SI units the material shall be furnished to ings including gas bottles for pressure vessel use. Three types inch-pound units. of carbon steel and six types of alloy steel are included. 2. Referenced Documents Provision is made for integrally forging the ends of vessel bodies made from seamless pipe or tubing. ASTM Standards 3 A275 A275M Practice for Magnetic Particle Examination of NOTE 1 When working to the chemical and tensile requirements of Steel Forgings this specification the influence of wall thickness and cooling rate will necessarily eliminate certain forging sizes in each class. A370 Test Methods and Definitions for Mechanical Testing NOTE 2 Designations have been changed as follows of Steel Products Current Formerly A388 A388M Practice for Ultrasonic Examination of Steel Grade A Type I Forgings Grade B Type II A530 A530M Specification for General Requirements for Grade C Type III Grade D Type IV Specialized Carbon and Alloy Steel Pipe Grade E Class 55 Type V Grade 1 Class 55 A788 A788M Specification for Steel Forgings General Re- Grade