Thanks for all your inputs, but I believe that I did not state my question correctly.
Say I have to finish turn a 2.5" OD 4140 Steel (or any steel Hot Rolled or Cold Finished).
What size Bar stock do I buy. Usually people just go to the next bigger standard size.
But is there a scientific way or...
I am looking for a standard for selection of raw material(Bar Stock), based on the material condition (Hot Rolled, COld Drawn, Turned & Polished e.t.c.) and the O.D.
In our work place it is just done by the word of mouth (senior most guy tells you what RM size to use).
I would like to find a...
Thanks Ed,
I just tried out a new source and the samples came back today, they look great. The surface is shiny, bright and silver.
The recepie used was Vaccum annealing (Nitrogen) at 1550 - 1850°F and the parts were ultrasonic cleaned at our facility before sending to Heat Treat.
Seeing...
I have checked with several Heat Treat Facilities in the Chicago area, but I have not suceeded in finding a place that offers H2 atmosphere and 1400 - 1500° F.
Any contacts in Chicago area will be a great help.
