Specifies four laboratory test methods for evaluating metal resistance to sulfide stress cracking and stress corrosion cracking in hydrogen sulfide environments.
NACE Standard TM0177-2005 establishes laboratory procedures for evaluating metals exposed to tensile stress and aqueous environments containing hydrogen sulfide. It supports consistent testing and comparison of materials for service in sour environments. The standard covers four methods: the standard tensile test, bent-beam test, C-ring test, and double-cantilever-beam (DCB) test. It includes guidance on test specimens, material properties, reagents, test solutions, vessels, fixtures, elevated-temperature and elevated-pressure testing, reporting results, and safety considerations for handling hydrogen sulfide.
Application Scope: Laboratory and materials personnel evaluating metals and alloys for resistance to environmental cracking in oil and gas production, petroleum refining, and other hydrogen sulfide-containing service environments.