Exhaust Train Materials for Current Japanese Auto-Manufacturers

In Japanese automotive industry considerable changes have been done in not only design of exhaust train but also materials to be used due to non-leaded gasoline as well as emission controls. Especially application ratio of heat-resisting and stainless steel has increased rapidly and at the same time manufacturing technique and performance improvement of raw-materials have been made for heat-resisting steel for passenger cars. We have explained for the current trend in materials used for exhaust train such as reactor, catalytic convertor, other part of exhaust train, engine valves, valve seat inserts.