Overview of Research Trends and Problems on Cr-Mo Low Alloy Steels for Pressure Vessel

압력용기용 Cr-Mo 계 저합금 강의 개발동향 및 재료적 문제점

Cr-Mo low alloy steels have been used for a long time for pressure vessel due to its excellent corrosion resistance, high temperature strength and toughness. The paper reviewed the latest trends on material development and some problems on Cr-Mo low alloy steel for pressure vessel, such as elevated temperature strength, hardenability, synergetic effect between temper and hydrogen embrittlement, hydrogen attack and hydrogen induced disbonding of overlay weld-cladding.