API RP 941-2004
Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants (Sixth Edition)

Standard No.

API RP 941-2004

Release Date

2004

Published By

API - American Petroleum Institute

Status

Be replaced 2008-08

Replace By

API RP 941:2008

API RP 941-2008

Latest

API RP 941-2016

API RP 941:2016

Scope

This recommended practice discusses the resistance of steels to high temperature hydrogen attack (HTHA). At normalatmospheric temperatures, gaseous molecular hydrogen does not readily permeate steel, even at high pressures. Carbonsteel is the standard m

API RP 941-2004 history

• 2016 API RP 941-2016 Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants (Eighth Edition)
• 0000 API RP 941:2008
• 2004 API RP 941-2004 Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants (Sixth Edition)
• 1997 API RP 941-1997 Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants (Fifth Edition; Incorporates Errata: October 13@ 1997 and Supplement 1: April 1998)