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12L14 fatigue properties

12L14 fatigue properties

12L14 fatigue properties

(OP)
Hi all,
Can anyone direct me to a source with a S-N curve for 12L14. I understand the additions of lead and sulfur to increase machineability tend to reduce fatigue properties. I can't seem to find any data that shows this.
Thanks in advance!

RE: 12L14 fatigue properties

I found none.  Indicating that there are no reliable fatigue properties for this grade.  The closest that I can come is fatigue curves for steels with inclusions showing about a 40% drop in properties, even though the tensile, yield, and elongation are the same.

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Plymouth Tube

RE: 12L14 fatigue properties

12L14 is going to have a very different fatigue life profile based on the chemistry.  Plus this grade isn't exactly designed for its fatigue life.  

 

RE: 12L14 fatigue properties

Sorry, I forgot to add. I have looked for an S-N curve for that grade in the past without much success.

RE: 12L14 fatigue properties

There is fatige S-N curves available from LaSalle's LA-LED grade. This material is for all practical purposes the same as 12L14 - i.e. low carbon, cold drawn, and full of inclusions.  I will post summary via upload.

RE: 12L14 fatigue properties

(OP)
Thanks for the help, all.

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