Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Tempering help
I want to know what the correct procedure for tempering a sword would be. Any help would be appreacated
Sculptor the Great- Mami
Hello Sculptor!
The proper tempering temperature depends on the grade of steel used, and on the final hardness that you are trying to achieve. A carburized steel, for example, would usually have a tempering temperature of about 350 F for about an hour. A blade made of D2 tool steel, however, would require a triple temper at either 450F or about 700F. Write back giving the grade, and I'll try to help.
Good luck! 
Lee Gearhart
metallurgist - E. Aurora, New York
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