Influence of heat treatment on the microstructure of steel coils of a heating tube furnace

Transportation and refining of heavy metal-bearing oil are associated with the problems localized destruction metal structures elements due to corrosion. In process equipment operation, it was revealed that premature failure steel coils heating tube furnaces at refineries petrochemical plants insufficient strength corrosion resistance steelwork. The study effect structure phase composition 15KH5M-alloy have on properties, mass loss destructions in heat treatment, allows develop protective measures determine modes a rate-limiting step oxidation. rate various types 15KH5M is used as an indicator assess effectiveness applied coil treatment order increase their improve operational characteristics. Conducted experiments certain sections allowed rational for studied coils, which made possible reduce working surfaces operation. Proposed specified intervals operation creates conditions stable performance affects degree industrial environmental safety, well reduces material costs repair replacement individual assemblies parts furnaces.