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oghshf

heat treating cycle for s235j2

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I need 27 j impact energy at -20C temp. for s235j2 (C:0.1- Si:0.04- Mn:0.45- P: 0.025, S: 0.02)

what heat treatment cycle is good for this steel?

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Why not ask the place where you got the steel or the supplier of that type steel?  If they are using or selling the stuff they should also have the HT information.

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The supplier should be able to supply you a chart/graff showing tempering lines incorporating izod, uts, hardness etc.

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