A1011 Grade 50 S-N curve 1

[cmjentinger]

I am trying to find an S-N curve for A1011 Grade 50 Type 1 structureal steel sheet. I have searched for weeks now to no avail. Does anyone have one or can direct me to where I can find it?

Many thanks,

Charles

 

[TVP]

As you have discovered, fatigue data is not readily available. Steel producers have this type of data, and there is some available in references like ASM HANDBOOK Volume 19 Fatigue and Fracture and Atlas of Fatigue Curves. The only free data I have found is from AISI:

http://www.a-sp.org/publications.htm

Scroll down to "Sheet Steel Fatigue" and find the grades SAE 2340 - 340XF. 340 is the yield strength in MPa, which is equivalent to a 50 ksi grade in ASTM A 1011.