UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

MSS SP 75

High-Strength, Wrought, Butt-Welding Fittings

active, Most Current
Buy Now
Organization: MSS
Publication Date: 1 January 2014
Status: active
Page Count: 33
scope:

This Standard Practice covers factorymade, seamless and electric welded carbon and low-alloy steel, butt-welding fittings for use in high pressure gas and oil transmission and distribution systems; including pipelines, compressor stations, metering and regulating stations, and mains.

This Standard Practice governs dimensions, tolerances, ratings, testing, materials, chemical and tensile properties, heat treatment, notch toughness properties, manufacture, inspection and marking for highstrength, butt-welding fittings NPS 60 and smaller. Dimensional requirements for NPS 14 and smaller are provided by reference to ASME B16.9.

The term "welding fittings" applies to buttwelding fittings such as elbows, segments of elbows, return bends, caps, tees, single or multiple-outlet extruded headers, reducers, and extensions and transition sections(1). Girth weld requirements are outside the scope of this Standard Practice and are covered by the applicable ASME B31 Code for Pressure Piping and/or customer specifications.

Fittings may be made to special dimensions, sizes, shapes, and tolerances, or of wrought materials other than those covered by this Standard Practice by agreement between the manufacturer and the purchaser. When such fittings meet all other stipulations of this Standard Practice they shall be considered as being in partial compliance therewith, providing they are appropriately marked.

Fittings manufactured in partial compliance, as provided in Section 1.4, shall be identified with "Part" following the respective grade designation.

Document History

MSS SP 75
January 1, 2014
High-Strength, Wrought, Butt-Welding Fittings
This Standard Practice covers factorymade, seamless and electric welded carbon and low-alloy steel, butt-welding fittings for use in high pressure gas and oil transmission and distribution systems;...
January 1, 2008
Specification for High-Test, Wrought, Butt-Welding Fittings
This specification covers factory-made, seamless and electric welded carbon and low alloy steel, butt-welding fittings for use in high pressure gas and oil transmission and distribution systems,...
January 1, 2004
Specification for High Test, Wrought, Butt Welding Fittings
This specification covers factory-made, seamless and electric fusion-welded carbon and low-alloy steel, butt-welding fittings for use in high pressure gas and oil transmission and distribution...
January 1, 1998
Specification for High Test Wrought Butt Welding Fittings
A description is not available for this item.
January 1, 1993
Specification for High Test Wrought Butt Welding Fittings
A description is not available for this item.

References

Advertisement