Abstract
Abstract Stress Corrosion Cracking (SCC) is the intergranular or transgranular cracking on alloy steel as a result of combination between static stress and special condition. This type of corrosion is usually seen in geothermal, oil, and gas fields, which also produces hydrogen sulfide (H2S) as impurity. At present this problem can not be controlled successfully. To solve this problem, a laboratory study is conducted to determine the rate of corrosion by using three specimens of alloy steel, i.e. AISI 420, AISI 4140, and AISI 1045 which each of it will be simulated in hydrogen sulfide environment with varying pressures and temperatures. Based on the result of the laboratory test, AISI 420 with 13% Cr content is better than the others to solve corrosion problem in geothermal, oil, and gas industry, but the type of stress corrosion cracking for high strength steel (AISI 420) may cause cracking.
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