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EN47
Technical Data
EN47 is a tough oil quenching which, when heat treated, offers good wear resistance.
TYPICAL ANALYSIS
C.
Mn.
Cr.
V.
0.50%
0.75%
1.00%
0.15%
Forging:
Forge at 1050°C. Do not work this steel when it has fallen below 840°C.
Annealing: Slow furnace cool from 840°/860°C.
Hardening:Pre heat slowly to 650/700°C and thoroughly soak. Continue heating to the final hardening temperature of 850/870°C 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°/600°C.
Tempering °C
100
200
300
400
450
500
550
600
HRc
56
53
50
49
46
44
40
36
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