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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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heat treat queries
I bought a VERY old heat treat oven quite a long while back...
I'd like to check that it is reasonably calibrated before heat treating this part. Is there some sort of thermocouple and high temp wire I can buy and take a voltage reading? I only know of this concept, not any specifics. I made a custom bolt out of 4340 for my 30 ton shop press. Looks like I should heat to 1525 and quench in oil. Then temper to 450. correct? I'll use SHMBO oven for tempering (when she goes shopping) Karl |
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