What is HTHA?
HTHA or High Temperature Hydrogen Attack is damage caused through hydrogen atoms diffusing into steels that are exposed to high pressure hydrogen at elevated temperatures, typically above 400°C. The hydrogen reacts with the carbon and forms methane gas within the steel. This process leads to fissuring and decarburization causing loss of tensile strength and can be the cause of a sudden catastrophic failure.
Our advanced HTHA detection and sizing course is designed to educate Advanced UT inspectors in methodologies and techniques to more reliably detect HTHA. This course is founded on extensive work and experience gained during industrial trials as part of the E2G HTHA JIP. Lavender International are custodians of the extensive E2G sample inventory and this will be used for HTHA training and certification purposes.