Engineering Materials
1841 high speed steel contains

Vanadium 4%, chromium 18% and tungsten 1%
Vanadium 18%, chromium 1% and tungsten 4%
Vanadium 1%, chromium 4% and tungsten 18%
None of these

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
In spheroidising process, the steel is

Heated below the lower critical temperature and then cooled slowly
None of these
Heated up to the lower critical temperature and then cooled in still air
Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C

ANSWER DOWNLOAD EXAMIANS APP