C'est en forgeant... Manuel pratique de forge - French edition
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Steel color according to temperature
Indicator table necessary for the interpretation of the temperature according to the color of the heated steel:
For tempering, from 230 ° C to 450 ° C.
For quenching, from 550 ° C to 1500 ° C.
ALWAYS BE CAREFUL TO INTERPRET THE COLORS IN A DARK ROOM.
Long-lasting printing on reinforced tarpaulin with 2 hanging eyelets for display in the workshop. Format 42x58.5 cm.