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Recent content by specialu77

  1. specialu77

    ASTM A471, Class 7?

    Since the customer specified ASTM A471 CL7, I really can't speak for them what grade to use... BUT if those are the mechanical properties of A294, then A471 CL6 should be sufficient. Here's the mechanical properties for A471 CL6 UTS 140 YS 130-150 %E(2") 15% RA 43% BHN N/A...
  2. specialu77

    ASTM A471, Class 7?

    Excellent. Thank you. Would you also happen to have the chemical comp. and the physical properties for A294 CL7? (our spec log doesn't appear to have that spec.) I've already given the go ahead to our purchasing guys to quote A471 CL6. But if you have the C%, Mn%, and yield strength of the...
  3. specialu77

    ASTM A471, Class 7?

    The ASTM A471 spec (forging spec) currently has classes 1-6, and then 10-14. I have a customer who is requesting an ASTM A471 Class 7. I suspect that it might have once existed, but was removed in the more recent versions of the spec. Does anybody know if there was ever a time where class 7...
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