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MSS SP 44

Steel Pipeline Flanges

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Organization: MSS
Publication Date: 1 January 2019
Status: active
Page Count: 58
scope:

General

This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged steel, and the blind flanges may be made from either forged steel or from steel plate.

Dimensional and tolerance requirements for NPS 10 and smaller are provided by reference to ASME B16.5. When such flanges are produced from materials meeting Table 2 requirements, and meet all other stipulations of this Standard Practice, then they shall be considered as complying therewith.

This Standard Practice covers two Product Specification Levels (PSL). If no PSL is specified, material shall be supplied as PSL1 with the standard requirements as are contained in the body of this Standard Practice. If PSL2 is specified, the material shall meet the additional requirements specified in Supplementary Requirement SR-18 (see Annex D/D.1).

Document History

MSS SP 44
January 1, 2019
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2016
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2016
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2016
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for steel pipeline flanges. The welding neck type flanges shall be forged...
MSS SP 44
May 20, 2011
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimen-sions, tolerances (by reference to ASME B16.5), marking and testing. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2010
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing. The welding neck type flanges shall be forged steel, and the blind flanges...
MSS SP 44
January 1, 2010
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimen-sions, tolerances (by reference to ASME B16.5), marking and testing. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 2006
Steel Pipeline Flanges
General This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances (by reference to ASME B16.5), marking and testing. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 1996
Steel Pipeline Flanges; Errata - 1996
A description is not available for this item.
MSS SP 44
January 1, 1996
Steel Pipeline Flanges
A description is not available for this item.
MSS SP 44
January 1, 1991
Steel Pipe Line Flanges
General — This standard covers pressuretemperature ratings, materials, dimensions, tolerances (by reference to ASME/ANSI B16.5), marking and testing. The welding neck type flanges shall be forged...
MSS SP 44
January 1, 1990
Steel Pipeline Flanges
A description is not available for this item.
MSS SP 44
January 1, 1985
Steel Pipe Line Flanges
General This standard covers pressure temperature ratings, materials, dimensions, tolerances (by reference to ANSI B16.5),. Marking and testing. The welding neck type flanges shall be forged steel,...
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References

This document references:
B31.1 - Power Piping
Published by ASME on October 10, 2022
Rules for this Code Section have been developed considering the needs for applications that include piping typically found in electric power generating stations, industrial and institutional plants,...
This document references:
B31.8 - Gas Transmission and Distribution Piping Systems
Published by ASME on December 22, 2022
(a) This Code covers the design, fabrication, installation, inspection, examination, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the...
This document references:
B31.1 - Power Piping
Published by ASME on October 10, 2022
Rules for this Code Section have been developed considering the needs for applications that include piping typically found in electric power generating stations, industrial and institutional plants,...
This document references:
B31.8 - Gas Transmission and Distribution Piping Systems
Published by ASME on December 22, 2022
(a) This Code covers the design, fabrication, installation, inspection, examination, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the...
This document references:
ASME B46.1 - Surface Texture (Surface Roughness, Waviness, and Lay)
Published by ASME on January 1, 2019
This Standard is concerned with the geometric irregularities of surfaces. It defines surface texture and its constituents: roughness, waviness, and lay. It also defines parameters for specifying...
This document references:
ASME BPVC-IX - SECTION IX QUALIFICATION STANDARD FOR WELDING, BRAZING, AND FUZING PROCEDURES; WELDERS; BRAZERS; AND WELDING, BRAZING, AND FUSING OPERATORS - WELDING, BRAZING AND FUSING QUALIFICATIONS
Published by ASME on July 1, 2017
A description is not available for this item.
This document references:
ASME BPVC-V - SECTION V NONDESTRUCTIVE EXAMINATION
Published by ASME on July 1, 2019
A description is not available for this item.
This document is referenced by:
BS EN ISO 14723 - Petroleum and natural gas industries - Pipeline transportation systems - Subsea pipeline valves
Published by BSI on July 31, 2009
A description is not available for this item.
This document is referenced by:
ASTM F704 - Standard Practice for Selecting Bolting Lengths for Piping System Flanged Joints
Published by ASTM on January 30, 1981
This practice covers bolt and stud bolt lengths, quantities, and thread series for pipe to pipe and pipe to valve flanged joints (Note 1) in the nominal pipe size ranges of 1⁄2 through 48-in. (12.7...
This document is referenced by:
MSS SP 157 - Quality Standard for Phosphate Surface Protective Coatings for Valves, Fittings, and Related Steel Piping Components
Published by MSS on January 1, 2020
General This Standard Practice covers requirements for the application of phosphate coatings on ferrous metal valves, fittings, and related steel piping components that necessitate surface...
This document is referenced by:
46 CFR PART 56 - PIPING SYSTEMS AND APPURTENANCES
Published by DOT on October 1, 2018
(a) This part contains requirements for the various ships’ and barges’ piping systems and appurtenances. (b) The respective piping systems installed on ships and barges shall have the necessary...
This document is referenced by:
49 CFR PART 192 - TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS
Published by DOT on October 1, 2020
What is the scope of this part? (a) This part prescribes minimum safety requirements for pipeline facilities and the transportation of gas, including pipeline facilities and the transportation of gas...
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