Issues related to the service condition of forgings per GB/T150.2-2011
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Questions regarding the service condition of 150 forgings; I am consulting about this using 16Mn as an example. For 16Mn in 150, the processing conditions include normalizing, normalizing followed by tempering, and quenching and tempering ； The heat treatment conditions for 47008 include normalizing, normalizing followed by tempering, and quenching followed by tempering. When designing the drawings, it is generally stated only that 16Mn meets standard 47008, without specifying the condition; the question now is: what are the differences between these various conditions? Or in other words, when to use normalizing, and when to use normalizing followed by tempering? Could the experts please explain this to me?……
Check under what operating conditions the original was used!
There was an explanation before, which was based on the thickness of the forging, as the heat treatment process for the forging requires it
As for the operating conditions, it seems there’s no basis for that