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SAE 1095 versus 1018
2

SAE 1095 versus 1018

SAE 1095 versus 1018

(OP)
This may be a dumb question but I have to ask it.  We make an electrical bar for a breaker out of SAE 1095 and do not heat treat it.  Another company makes the same bar out of 1018.  The engineer is not around anymore that spec'd the more expensive 1095.  Does anyone know why he may have?  The bar is wrapped with insulation, so it does not have to conduct.

thanks in advance.

RE: SAE 1095 versus 1018

It's not a dumb question at all.  Are you buying the 1095 annealed?  If so, its yield strength is ~25% higher than annealed 1018, so that may have been the reason, or perhaps the eng. intended to heat treat it.

I can think of any other reasons for it.  If you don't need the strength, use 1018.

RE: SAE 1095 versus 1018

(OP)
Is there any way that I can get the yield strength values
of the 2 materials annealed?

thanks
Mark

RE: SAE 1095 versus 1018

SAE 1015
Y(ield)--41ksi
T(ensile Strength)--56ksi
E(longation)--37%
SAE 1020
Y--43ksi
T--57ksi
E--36.5%
SAE 1095
Y--55ksi
T--95ksi
E--13%

As you can see the 1018 would probably break around the same stress level at wich the 1095 is beginning to bend.

nick

(The above statement makes lots of assumptions)

Nick
I love materials science!

RE: SAE 1095 versus 1018

(OP)
thanks for all the help!

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