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Introduction: Why Sour-Service Refineries Need Special Steel In refineries and oil & gas plants, exposure to wet hydrogen sulfide (H₂S) creates highly corrosive conditions. Regular carbon steels often fail due to hydrogen-induced cracking (HIC) and sulfide stress cracking (SSC). To overcome this, engineers specify HIC tested plates with NACE MR0175

 Why Refinery Projects Need Special Steel Refineries operate under extreme hydrogen exposure and wet-H₂S environments where ordinary carbon steel quickly becomes brittle and fails. To prevent such damage, engineers use HIC tested coils — materials specially designed to resist hydrogen-induced cracking. At Navgraha Steels Inc, we supply globally approved HIC