Abstract
Some low-chromium steels containing 2% and 5% chromium for inlet valves have been evaluated by short time tensile test at room and high temperature, hot hardness test, cold workability, scaling test, corrosion test and stress-rupture test at 550°C and 600°C.
The steel containing 0.3% C, 1% Si, 5% Cr and 0.5% Mo has a good combination of strength and ductilility, and is found suitable for inlet valves to be operated at under 500°C
