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ASTM A841/A841M

Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo- Mechanical Control Process (TMCP)

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Organization: ASTM
Publication Date: 1 October 2013
Status: inactive
Page Count: 10
ICS Code (Flat steel products and semi-products): 77.140.50
scope:

This specification2 covers steel plates produced by the thermo-mechanical control process (TMCP). The plates are intended primarily for use in welded pressure vessels. A description of the TMCP method is given in Appendix X1.

Due to the inherent characteristics of the TMCP method, the plates cannot be formed at elevated temperatures without sustaining significant losses in strength and toughness. Except for Grade G, the plates may be formed and post-weld heattreated at temperatures not exceeding 1200°F [650°C], providing the requirements of 6.1 are met. Grade G plates may be formed at temperatures not exceeding 985°F [530°C] provided the requirements of 6.1 are met.

The maximum permitted nominal thickness of plates furnished to this specification is 4 in. [100 mm] for Grades A, B, and C; 1.5 in. [40 mm] for Grades D,3 E, and F; and 2 in. [50 mm] for Grade G.

Grade G is susceptible to magnetization. Use of magnets in handling after heat treatment should be avoided if residual magnetism would be detrimental to subsequent fabrication or service.

The values stated in either inch-pound units or SI units 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 this specification.

2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-841/SA-841M in Section II of that Code.

3 ExxonMobil Upstream Research Company has patents pending concerning the use of chemistry ranges in ASTM A841 Grade D, in combination with specific TMCP routes and/or specific microstructural features. Interested parties are invited to submit information regarding identification of alternatives to these patented items to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend.

*A Summary of Changes section appears at the end of this standard

Document History

November 1, 2017
Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo- Mechanical Control Process (TMCP)
This specification2 covers steel plates produced by the thermo-mechanical control process (TMCP). The plates are intended primarily for use in welded pressure vessels. A description of the TMCP...
ASTM A841/A841M
October 1, 2013
Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo- Mechanical Control Process (TMCP)
This specification2 covers steel plates produced by the thermo-mechanical control process (TMCP). The plates are intended primarily for use in welded pressure vessels. A description of the TMCP...
April 10, 2003
Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo- Mechanical Control Process (TMCP)
This specification2 covers steel plates produced by the thermo-mechanical control process (TMCP). The plates are intended primarily for use in welded pressure vessels. The TMCP method consists of...
April 10, 2003
Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
This specification(Footnote 2)covers steel plates produced by the thermo-mechanical control process (TMCP). The plates are intended primarily for use in welded pressure vessels. The TMCP method...
April 10, 2003
Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
This specification covers steel plates produced by the thermo-mechanical control process (TMCP). The plates are intended primarily for use in welded pressure vessels. The TMCP method consists of...
March 10, 2001
Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
1. Scope 1.1 This specification covers steel plates produced by the thermo-mechanical control process (TMCP). The plates are intended primarily for use in welded pressure vessels. 1.2 The TMCP method...
September 10, 1998
Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
1. Scope 1.1 This specification covers steel plates produced by the thermo-mechanical control process (TMCP). The plates are intended primarily for use in welded pressure vessels. 1.2 The TMCP method...
June 15, 1995
Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
A description is not available for this item.
August 15, 1994
STANDARD SPECIFICATION FOR STEEL PLATES FOR PRESSURE VESSELS, PRODUCED BY THERMO- MECHANICAL CONTROL PROCESS (TMCP)
A description is not available for this item.
December 28, 1990
STANDARD SPECIFICATION FOR STEEL PLATES FOR PRESSURE VESSELS, PRODUCED BY THE THERMO- MECHANICAL CONTROL PROCESS (TMCP)
A description is not available for this item.
January 29, 1988
STANDARD SPECIFICATION FOR STEEL PLATES FOR PRESSURE VESSELS, PRODUCED BY THE THERMO- MECHANICAL CONTROL PROCESS (TMCP) (E1-SEP.1988)
A description is not available for this item.
August 29, 1986
STANDARD SPECIFICATION FOR STEEL PLATES FOR PRESSURE VESSELS, PRODUCED BY THE THERMO- MECHANICAL CONTROL PROCESS (TMCP)
A description is not available for this item.
January 1, 1985
STEEL PLATES FOR PRESSURE VESSELS, PRODUCED BY THE THERMO-MECHANICAL CONTROL PROCESS (TMCP), SPEC. FOR
A description is not available for this item.

References

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