FERRITIC STAINLESS STEEL FOR EGR COOLER AND EGR COOLER

摘要

A ferritic stainless steel suitable as an EGR cooler member provided for Ni soldering, and an EGR cooler using the ferritic stainless steel. The steel sheet according to any one of claims 1 to 3, wherein the steel sheet contains 0.03% or less of C, 0.1 to 3% of Si, 0.1 to 2% of Mn, 10 to 25% of Cr, 0.3 to 0.8% of Nb and 0.03% (B) at least one of Ti, Al, and Zr in a total amount of not more than 0.3%; (c) at least one element selected from the group consisting of Ni And Co in a total amount of 5% or less, (d) at least one of REM (rare earth element) and Ca in a total amount of not more than 0.2%, and the balance Fe and inevitable impurities An EGR cooler having a structure in which Ni is brazed using ferritic stainless steel is obtained.