The silent enemy: Hydrogen-induced cracking.

Nelson curve. HTHA: Refineries’ Major Concern HTHA, or High Temperature Hydrogen Attack, describes the cracking degradation suffered by certain types of steel operating under high-temperature conditions (above 400°C) in hydrogen-rich environments. Typically, these conditions occur in equipment found in refineries, petrochemical plants, and other chemical boiler facilities. This type of hydrogen-induced embrittlement behaves differently from […]