Yield Strength and Wear Properties of Steel 5

[afarian]

Could someone offer me some advice on the "wear-ability" of steels of varying grades? (i.e. 80ksi vs. 50ksi vs. mild steel) Is there any correlation between yield strength and "wear-ability"? Thank you.

 

[metman]

afarian,
I did not understand your positive slope comment in reference to hardness comparison. However it seems to me that difference in wearability between the 50ksi and 80ksi would be negligible in thisw application. As mentioned earlier, I would be looking at whether you need to increase material thickness otherwise why would 80 kis steel have been selected in the existing design? I suggest it was for strength rather than wear.

Jesus is THE life,
Leonard

 

[afarian]

metman,
By positive slope relationship I meant that the higher the yield strength, the higher the hardness. In addition, there is a pretty strong correlation of this by the high R-squared value.

As for the selection of the 80ksi yield material, I can't seem to find a specific reason why that material was chosen to begin with. Perhaps not knowing any better coupled with the tiny price increase at the time was worth the insurance it provided someone here?!?

As for the increased thickness point you made, we have decided to go ahead and make that upgrade, since that is a small enough weight penalty. So in the end, our final decision is to go ahead with the 50ksi yield material and increase the thickness. Thank you all for your collective wisdom and help. I hope I can return the favor one day.

afarian