Effect of carbon on the 15-5 PH mechanical properties ?
Effect of carbon on the 15-5 PH mechanical properties ?
(OP)
The ASME A702 said that the carbon content in the 15-5 PH steel is 0.07 Max.
My question is what is the effect of the carbon content on the mechanical properties when the carbon move from 0.03 % to 0.07 %
Thanks all
Any links to paper are welcome
My question is what is the effect of the carbon content on the mechanical properties when the carbon move from 0.03 % to 0.07 %
Thanks all
Any links to paper are welcome





RE: Effect of carbon on the 15-5 PH mechanical properties ?
Michael McGuire
http://stainlesssteelforengineers.blogspot.com/
RE: Effect of carbon on the 15-5 PH mechanical properties ?
What about the impact toughness in the cases where the carbon content is 0.30 % and 0.70 %
RE: Effect of carbon on the 15-5 PH mechanical properties ?
Higher carbon content at 0.07% versus 0.03% mass percent means lower impact energy values, and a shift in DBTT toward higher test temperature.
RE: Effect of carbon on the 15-5 PH mechanical properties ?
That is was i have expected.
Can we ajust the tempering temperature of a 0.7 % carbon to get the same value of impact toughness of a sample with 0.3% of carbon ?
RE: Effect of carbon on the 15-5 PH mechanical properties ?
This is the second time you are referring the carbon content as 0.3 and 0.7%. Hope it is only a typo error .
Carbon is not deliberately added into stainless steels as in low alloy or carbon steels. Hence the role of carbon is quite different. Also it is never desirable to have free carbon in the stainless steels as they can combine with chromium and form carbides,thus reducing stainlessness.
Learn the rules,so you know how to break them properly.
Dalai Lama
_____________________________________
RE: Effect of carbon on the 15-5 PH mechanical properties ?
I mean
Can we ajust the tempering temperature of a 0.07 % carbon to get the same value of impact toughness of a sample with 0.03% of carbon ?
Instead of
Can we ajust the tempering temperature of a 0.7 % carbon to get the same value of impact toughness of a sample with 0.3% of carbon ?
RE: Effect of carbon on the 15-5 PH mechanical properties ?
This PH grade of stainless is not normally tempered, it is aged according to a selected range of aging temperatures and hold times to achieve desired mechanical properties.
If you want increased toughness beyond what the published values are for an H1150 or H1150-M condition for 15-5 PH, the lower carbon content will only improve your margin for increased toughness.
See the bulletin below for 15-5PH and the impact values published for a material specification with a maximum of 0.07% C by mass. Using a heat of lower carbon content will guarantee that you will reach the values or exceed them.
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RE: Effect of carbon on the 15-5 PH mechanical properties ?