Serviceability of nickel alloys and some types of steel in hydrogen-sulfide-containing media

Abstract

We analyze the sensitivity of 36NKhTYu, 36NKhTYuM5, 40NKKhTYuMD, and 75NKhTYuB nickel alloys and 17G1S and 08Kh17N15M3T steels to the action of hydrogen sulfide according to the criteria of threshold stressesK Iscc by the method of tension with low strain rates. We study the electrochemical characteristics of the indicated materials and show that 75NKhTYuB and 36NKhTYu alloys are unsuitable for application in the oil and gas industry. The parameters of 40NKKhTYuMD alloy and 17G1S steel must be improved. The best operating characteristics are exhibited by 36NKhTYuM5 alloy and 08Kh17N15M3T steel (produced by the “Dneprospetsstal” plant). These metals can guarantee the required level of serviceability of equipment used in the oil and gas industry and operating in contact with hydrogen-sulfide-containing media.