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Hot Working of 25CrMo4 Steel with Tellurium Additions

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jimsan

Industrial
Joined
Aug 12, 2003
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26
Location
GB
Tellurium is added to steels to modify the inclusions and improve machinability.
Does anyone have any experience of hot working such materials (25CrMo4 for example) and experienced cracking problems?
 
We regularly hot-head 25CrMo4 bolt heads with no cracking, but I didn't know Tellurium was an element added deliberately. To what spec ?
 
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