Tempering of Steels
Tempering of Steels
(OP)
When Steel components are tempered is it possible during the heat treatment process to allow too much time soaking at the target tempering temperature?
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RE: Tempering of Steels
Yes, it is possible. Standard tempering times for most carbon and low alloy steels are 1 hour/inch at tempering temperature with slight incremental increases in time based on thicker components. If you remain too long at a specific tempering temperature you will reduce strength properties from carbide coarsening.
RE: Tempering of Steels
would this effect be applicable to PM parts also?
RE: Tempering of Steels
Although, I am not experienced in PM part processing, I believe the parameters regarding time at temperature would also apply to PM parts, based on what I have seen in literature.
RE: Tempering of Steels
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Plymouth Tube
RE: Tempering of Steels
I was also wondering if excessve time at temperature could have maybe a detrimental effect on the dimensional stability of small components?