Standard Specification for Heat-Treated Carbon Steel Fittings for Low-Temperature and Corrosive Service
|Publication Date:||1 October 2013|
|ICS Code (Metal fittings):||23.040.40|
This specification covers heat-treated wrought carbon steel piping fittings with lowered carbon content of seamless and electric fusion-welded construction covered by the latest revisions in ASME B16.9, ASME B16.11, MSS SP-75, MSS SP-79, MSS SP-83, MSS SP-95, or MSS SP-97. Fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A960/A960M. These fittings are for use in pressure components where inherent notch toughness and optimum sulfide-cracking resistance are required, such as oil and gas industry piping and distribution systems.
Optional supplementary requirements are provided for fittings when a greater degree of examination is desired. One or more of the supplementary requirements may be specified in the order.
This specification does not cover cast-welding fittings or fittings machined from castings.
The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Unless the other specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.
*A Summary of Changes section appears at the end of this standard