ASTM A841/A841M-17
Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)

Standard No.

ASTM A841/A841M-17

Release Date

2017

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A841/A841M-17

Scope

1.1 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.

1.2 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 heat-treated 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.

1.3 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.

1.4 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.

1.5 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.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM A841/A841M-17 Referenced Document

• ASTM A20/A20M Standard Specification for General Requirements for Steel Plates for Pressure Vessels
• ASTM A435/A435M Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates
• ASTM A577/A577M Standard Specification for Ultrasonic Angle-Beam Examination of Steel Plates
• ASTM A578/A578M Standard Specification for Straight-Beam Ultrasonic Examination of Plain and Clad Steel Plates for Special Applications

ASTM A841/A841M-17 history

• 2017 ASTM A841/A841M-17 Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
• 2013 ASTM A841/A841M-13 Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process lpar;TMCPrpar;
• 2003 ASTM A841/A841M-03a(2007) Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
• 2003 ASTM A841/A841M-03a Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
• 2003 ASTM A841/A841M-03 Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
• 2001 ASTM A841/A841M-01 Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)
• 1998 ASTM A841/A841M-98e1 Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)