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Recent content by steve37

  1. steve37

    4130 and 4140 comparison

    Tmoose, Usually the problem is hitting a boulder. They are covered with Nevada silt and hard to spot. Also, they like to hide behind a bush. Braking is another issue, where the driver see's a huge ditch and slams on the brakes as he drops into it, which wears and fatigues parts quickly. The...
  2. steve37

    4130 and 4140 comparison

    You are right! I began "roughing out" the material then stopped, thought about it and figured I better get some answers before I go any further. Thanks
  3. steve37

    4130 and 4140 comparison

    Thanks for the help guys. The O.D. of the tie rods will be .875". When I thread on the lathe, I usually cut in a relief at the end for the end of the threadcutting. But for this application, I think I will not cut in a relief (possible cracking).4140 it is!!!
  4. steve37

    4130 and 4140 comparison

    I am machining a set of steering tie rods out 4140 for a customer. He wanted 4130 but I was out, I recommended 4140 and he agreed. How do these two metals compare ??? These tie rods are for a Off-road desert racing truck, extreme duty, should I just order some 4130 ?

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