HIC & SCC test in Detail

Hydrogen-Induced Cracking (HIC) and Stress Corrosion Cracking (SCC) are two major forms of environmentally assisted failure that can compromise the integrity of metallic components in harsh industrial environments. HIC occurs when atomic hydrogen diffuses into steel and leads to internal cracking — particularly in sour service pipelines exposed to hydrogen sulfide (H₂S). SCC, meanwhile, results from the combined effects of tensile stress and a corrosive environment, and can lead to sudden, brittle fracture without significant prior deformation.

At 2R Inspection, we conduct HIC and SCC testing in accordance with international standards such as NACE TM0284 (for HIC) and NACE TM0177 (for SCC). Our testing procedures include specimen preparation, exposure to simulated service environments, and post-exposure evaluation via ultrasonic testing or metallographic examination. We provide testing for base metals, weld zones, and heat-affected zones (HAZ), helping clients qualify materials for sour service, evaluate supplier quality, or investigate field failures.

These assessments are essential for oil & gas, petrochemical, and offshore industries where sour gas, chloride exposure, or acidic environments are present. With 2R Inspection, you gain critical insights into your material’s resistance to cracking, supporting safe operation, long-term performance, and compliance with rigorous industry standards.