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MSS SP 44

Steel Pipe Line Flanges

inactive
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Organization: MSS
Publication Date: 1 January 1985
Status: inactive
Page Count: 32
scope:

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, and the blind flanges may be made of either forged steel or from steel plates.

Dimensional requirements for sizes NPS 10 and smaller are provide by reference to ANSI B16.5. When such flanges meet all other stipulations of this standard, they shall be considered as complying therewith.

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:
ASME B16.5 - Pipe Flanges and Flanged Fittings NPS ½ Through NPS 24 Metric/Inch Standard
Published by ASME on January 1, 2020
(a) This Standard covers pressure–temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings. Included are (1)...
This document references:
ASME B16.1 - Gray Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250
Published by ASME on November 9, 2020
This Standard covers Classes 25, 125, and 250 Gray Iron Pipe Flanges and Flanged Fittings. It includes (a) pressure–temperature ratings (b) sizes and method of designating openings of reducing...
This document references:
MSS SP 25 - Standard Marking System for Valves, Fittings, Flanges, and Unions
Published by MSS on January 1, 2018
This standard marking system applies to the marking of new valves, fittings, flanges, and unions used in piping connections that include (but are not limited to) flanged, soldered, brazed, threaded,...
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 B18.2.1 - Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch Series)
Published by ASME on June 19, 2013
A description is not available for this item.
This document references:
ASME B18.2.2 - Nuts for General Applications: Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts (Inch Series)
Published by ASME on November 30, 2015
This Standard is intended to cover the complete general and dimensional data for the various types of inch series square and hex nuts, including machine screw nuts and coupling nuts, addressed by...
This document references:
ASME B16.20 - Metallic Gaskets for Pipe Flanges
Published by ASME on December 29, 2017
This Standard covers materials, dimensions, tolerances, and markings for metal ring-joint gaskets, spiral-wound metal gaskets, metal-jacketed gaskets, and grooved metal gaskets with covering layers....
This document references:
ASME B1.1 - Unified Inch Screw Threads (UN and UNR Thread Form)
Published by ASME on January 1, 2019
This Standard specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads. (In order to emphasize that unified screw threads are based on inch modules,...
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