To provide a pipe capable of maintaining corrosion resistance and wear resistance even under a severe environment of high temperature and corrosive gas, and a repairing method for efficiently performing repair of excellent corrosion resistance and wear resistance even in a structure with pipes concentrated therein.

The surface of the pipe of excellent wear resistance is covered with a thermal-sprayed layer comprising three layers, i.e., a substrate layer, a Ni-Cr alloy intermediate layer, a Ni-based alloy SFA surface layer, and Ni-based WC SFA, where SFA denotes self fluxing alloy.