On Jan 3, 2010, at 5:44 PM, Brian J Carlson wrote:

If a boxcar was built in April of 1944 with 1 wear wrought steel
wheels
would they likely still be on the car in 1957. I know cast wheels were
banned at some point in the 50's but I don't know much else about the
freight car wheel technology in that time frame. Were 1 wear
wrought steel
wheels state of the art then?

Yes, and yes. After World War II, many cars still had cast iron
wheels, which weren't outlawed by the AAR until 1958, but it would
have been very rare for a car that was delivered with one wear
wrought steel wheels to have them replaced with anything else.

Richard Hendrickson