Question

What is temp of hardening heat treatment of high speed steels?
1200 °C
b) 1160 °C
c) 1050°C
d) 1280°C​

Answer 1

Answer:

1050 °C is the ans .. hope it helps

Answer 2

Answer:

Steel R6M5 must be protected against decarburizing during heating to quenching temperature. The salt bath should be rectified (deoxidized) with magnesium fluoride or borax. The optimal tempering conditions for the highest hardness and mechanical properties are tempering at 350° and double tempering at 560–570° for 1 h.

Explanation:

1280°c