Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants

API

This package contains Supplement 1 of API Recommended Practice 941, Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants, Fifth Edition. This package consists of the pages that have changed since the January 1997 printing and incorporates the changes in the October 1997 Errata.