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  1. Quazif

    STandard Allowances on Bar Stock O.D. & Length

    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...
  2. Quazif

    STandard Allowances on Bar Stock O.D. & Length

    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...
  3. Quazif

    Bright Annealing of 430F(R)

    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...
  4. Quazif

    Bright Annealing of 430F(R)

    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.

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