TUBE FOR THERMAL CRACKING OR REFORMING HYDROCARBON AND MANUFACTURING METHOD THEREOF

摘要

A reactor tube for thermally cracking or reforming hydrocarbons comprising a tube member made of Fe-Cr- Ni heat resisting material and a covering layer of selffluxing alloy fusing to the inner surface of the tube member, the covering layer made of heat resisting material free from Ni or with a low Ni content. The tube member is manufactured by centrifugal casting, and the covering layer is formed by applying the self-fluxing alloy powder by scattering with or without thermit agent or spraying the alloy to the inner surface of the tube member.