Inox TP347 grain size
Inox TP347 grain size
(OP)
Hello, I'm talking about hot forming steel tubes.
After the heat treatment at 1060ºc, the grain size is 0-1 or 2. I need grain size between 4-7, so there are any way to solve this problem?
Ususally we have the right grain size, but when the ingots (before forging)stay too much time on the furnance (because any workshop problem) the grain size increase so much. And then we have nothing to do decreaseing it.
There are any element that we can add to the chemical composition to avoid this problem or anything after heat tretmen?
thank you so much
After the heat treatment at 1060ºc, the grain size is 0-1 or 2. I need grain size between 4-7, so there are any way to solve this problem?
Ususally we have the right grain size, but when the ingots (before forging)stay too much time on the furnance (because any workshop problem) the grain size increase so much. And then we have nothing to do decreaseing it.
There are any element that we can add to the chemical composition to avoid this problem or anything after heat tretmen?
thank you so much





RE: Inox TP347 grain size
What is the material specification for this tubing? Is it under ASTM or EN or what?
How much time are you spending at 1060 deg C? This is the cause of grain growth if you are spending more time than necessary at the solution treatment temperature. You don't simply add elements to avoid grain coarsening.
RE: Inox TP347 grain size
There is no chemistry fix for this, only correct processing.
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Plymouth Tube
RE: Inox TP347 grain size