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API 941 REDLINE : 2008

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

STEELS FOR HYDROGEN SERVICE AT ELEVATED TEMPERATURES AND PRESSURES IN PETROLEUM REFINERIES AND PETROCHEMICAL PLANTS
Withdrawn date

01-02-2024

Published date

01-01-2008

Publisher

American Petroleum Institute

1 Scope
2 References
3 Operating Limits
4 Forms of HTHA
5 Factors Influencing HTHA
6 Inspection for HTHA
Annex A - High Temperature Hydrogen Attack (HTHA)
          of 0.5Mo Steels
Annex B - HTHA of 1.25Cr-0.5Mo Steel
Annex C - HTHA of 2.25Cr-1Mo Steel
Annex D - Effective Pressures of Hydrogen in Steel
          Covered by Clad/Overlay
Annex E - Summary of Inspection Methods
Annex F - Request for New Information
Bibliography

Describes the results of experimental tests and actual data acquired from operating plants to establish practical operating limits for carbon and low alloy steels in hydrogen service at elevated temperatures and pressures. Applies to equipment in refineries, petrochemical facilities, and chemical facilities in which hydrogen or hydrogen-containing fluids are processed at elevated temperature and pressure.

DocumentType
Redline
PublisherName
American Petroleum Institute
Status
Withdrawn

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