Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels
|Publication Date:||10 September 2002|
|ICS Code (Iron and steel forgings):||77.140.85|
This specification 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.
NOTE 1 - When working to the chemical and tensile requirements of this specification, the influence of wall thickness and cooling rate will necessarily eliminate certain forging sizes in each class.
NOTE 2 - Designations have been changed as follows:
The values stated in either inch-pound or SI [metric] units are to be regarded separately as the standard. Within the text and the tables, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
Unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.