EN45 |
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EN45 is a silicon mangenese spring steel, supplied in the as rolled contition. This steel is suitable for oil hardening and tempering.
TYPICAL ANALYSIS |
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C. |
Si. |
Mn. |
S. |
P. |
0.55% |
1.75% |
0.75% |
0.05% |
0.05% |
Forging:
Forge at 1150C.Annealing:
Slow furnace cool from 840/900C.
Hardening:
Pre heat slowly to 650/700C and thoroughly soak. Continue heating to the final hardening temperature of 870/930C and allow the component to be heated through. Quench in oil.
Tempering:
Temper immediately after quenching whilst tools are still hand warm. Re-heat to the tempering temperature, soak for one hour per 25 millimetre of total thickness, 2 hours minimum, then cool in air. For most applications tempering will be between 400/550C.
Available sections:
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