440C Charpy Transition Temperature

[Maui]

I am looking for the Charpy ductile to brittle transition temperature for 440C stainless steel in both the hardened and annealed conditions. Although I have performed a Google search, visited MatWeb, and visited websites of steel producers, I am unable to locate ANY data on this topic. Can someone direct me to a reliabble source for this information? Thank you.

 

[mcguire]

Go to timken.com, then navigate to their Latrobe site. These people can answer your questions if it's not in the on-line data for the grade.

 

[EdStainless]

It may be hard to find. The toughness will be a function of the C content and specific heat treatment. Changes in heat treatment can change the 50% ductility temp by 100F.
You may have trouble finding the data for 440C because the toughness is very low.

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Corrosion never sleeps, but it can be managed.

http://www.trenttube.com/Trent/tech_form.htm

 

[Maui]

Latrobe's website was one of the steel producer's websites that I visited, and they do not have this information. The toughness for this grade is relatively low, and the only information that I was able to locate stated that 440C was not recommended for use at low temperatures due to toughness concerns.