| 摘要 |
Disclosed is a carburization-resistant metal material suitable as a material for cracking furnaces, reforming furnaces, heating furnaces, heat exchangers, or the like used for petroleum or gas refining or in chemical plants, the carburization-resistant metal material containing, by mass%, 0.03-0.075% of C, 0.6-2.0% of Si, 0.05-2.5% of Mn, 0.04% or less of P, 0.015% or less of S, greater than 16.0% to less than 20.0% of Cr, 20.0% or greater to less than 30.0% of Ni, 0.5-10.0% of Cu, 0.15% or less of Al, 0.15% or less of Ti, 0.005-0.20% of N, and 0.02% or less of O (oxygen), with the remainder comprising Fe and impurities. The carburization-resistant metal material may further contain one or more types of elements from among Co, Mo, W, Ta, B, V, Zr, Nb, Hf, Mg, Ca, Y, La, Ce, and Nd. |
