EXAMINED UNDER MICROSCOPE FOR HYDROGEN-INDUCED CORROSION CRACK
WHAT IS WET HYDROGEN SULPHIDE DAMAGE?
Hydrogen Sulphide is a rotten egg-scented, colorless, flammable gas that is dangerous to equipment when moisture is present. Wet hydrogen sulphide conditions facilitate rapid corrosion and cracking, mainly from atomic hydrogen diffusing into the steel and collecting at defects.
Hydrogen-induced cracking (HIC) refers to the brittle mechanical fracture caused by the penetration and diffusion of atomic hydrogen into the crystal structure of an alloy. It involves atomic hydrogen, the smallest atom, diffusing into a metallic structure. Hydrogen-induced testing is commonly observed in the oil refining, petrochemical, chemical, and gas sectors.
PTS performs Hydrogen-Induced Cracking cracking conforming to NACE TM0284, which simulates exposure of materials to water and hydrogen sulphide to gauge the resistance to hydrogen-induced cracking (HIC).
HIC is categorized by ductile materials undergoing brittle fracture in the presence of hydrogen, and the test is typically used to evaluate carbon and low alloy steel products such as pipes, fittings & flanges that are meant for use in the oil & gas industries.
APPLICATION OF HYDROGEN-INDUCED CRACKING TEST:
Assess the susceptibility of carbon and low alloy steel material to hydrogen-induced cracking in wet
Common Test Methods
NACE TM0284
ANSI/NACE MR0175
ISO 15156
Talk to us today
The presence of hydrogen in the metal may result in reduced ductility and increased susceptibility to cracking and failure. Our expert testing team can design and perform hydrogen-related tests in our state-of-the-art facility.
For more information on the hydrogen-induced cracking test, call us or send us an enquiry today.
