Need UTS &Yield on 4150 Large dia bar
Need UTS &Yield on 4150 Large dia bar
(OP)
I'm trying to get specs on 16" diameter, 4150 steel, nonresulfurized. All the specs I can find end at 8" dia which shows about 115 ksi ultimate tensile, 85 ksi for 0.2% yield. Our vendor couldn't do any better.
Any easy way to estimate the change as bar size grows? It appears to lose about 5 ksi per 2" diameter increase, but I doubt this is linear.
HELP!
Keep the wheels on the ground
Bob
Any easy way to estimate the change as bar size grows? It appears to lose about 5 ksi per 2" diameter increase, but I doubt this is linear.
HELP!
Keep the wheels on the ground
Bob






RE: Need UTS &Yield on 4150 Large dia bar
elongation 19%, R.A. 42%.
What is the heat treatment on your piece?
RE: Need UTS &Yield on 4150 Large dia bar
Not sure what the final heat will be - I think it was spec'd at about the hardness you referenced - this was info a customer requested to do more meaninless calculations on a preliminary design.
I have recommended that we look at using 4340 when the shaft gets above 8 > 10" range - a bit more $$ but less risk.
I asked our vendors and they couldn't come up with anything, so you are definitely the MAN today!
Thanks again
Keep the wheels on the ground
Bob
showshine@aol.com