タイトルまたは説明

Chromium molybdenum alloy steel in the medium temperature (**0 ~ **0 ℃) have prevent hydrogen embrittlement in hydrogen environment, hydrogen corrosion, stripping, hydrogen sulfide corrosion performance, at the same time has good low temper brittleness, widely used in fertilizer, petrochemical industry as well as the manufacture of thermal power plant equipment, such as ammonia, coal gasifier, transform furnace reactor and hydrogenation reactor, etc. By means of special smelting, so that to reduce phosphorus content SA**7 has high brittleness, resistance at the same time also has a good impact toughness in low temperature environment. SA**7 material is suitable for the hydrogenation reaction at high temperature and conversion of refining and gas processing equipment, the maximum thickness of up to **0 mm thickness of the steel plate. According to the requirements of the different thickness and impact, SA**7 steel plate select normalized and tempered or normalizing heat treatment plus fast cooling and tempering treatment