Standard Specification for Carbon Steel Forgings for Piping Applications
|Publication Date:||1 October 2003|
|ICS Code (Iron and steel forgings):||77.140.85|
Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.
Specification A 266/A 266M covers other steel forgings and Specifications A 675 and A 696 cover other steel bars.
This specification is expressed in both inch-pound units and SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.
The values stated in either inch-pound units or SI are to be regarded separately as standard. Within the text, 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.
NOTE 1 - The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as "nominal diameter," "size," and "nominal size."
Footnote * - A Summary of Changes section appears at the end of this Standard.
Footnote 2 - For ASME Boiler Pressure Vessel Code applications, see related Specification SA-105 in Section II of that Code.