Heat codes
Heat codes
(OP)
Is there a difference between heat codes and heat numbers? I have an MTR for a fitting that has both a heat code and heat number and they are different numbers for the same fitting.
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RE: Heat codes
RE: Heat codes
If the numbers are different then there is obviously a difference.
As a guess, the heat code might be the "recipe" for this particular part. Temperature ramp rates, dwells, atmosphere, etc.
The heat number is typically to trace back to a date and oven that the part was processed.
If you really need to know, ask the company that gave you the MTR.