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Recent content by SiVxyz

  1. SiVxyz

    ASTM A350 LF2 Class1

    I found in letterature (as stanweld also said) that grain refinement for low carbon steel 0.18%C-1%Mn (which is close to A350) can be achieve by double normalizing. Second normalizing is suggested at T° slighly over Ac3 (1500-1525°F). I might try that since ASTM A350 does not prescribe any...
  2. SiVxyz

    ASTM A350 LF2 Class1

    Normalized ASTM 350 LF2 CL1 was tempered at 1100°F for 2 hours. The impact values obtained are half of what normalized only gave, falling below minimum ASTM requirements. I am surprized because I was expecting an improvement. Is it possible that temper embrittlement occured although the cooling...
  3. SiVxyz

    ASTM A350 LF2 Class1

    Yes, you are right. I should have wrote 1100°F, 1125°F, ... The idea is to get Cv -vs- Tempering T° and UTS -vs-Tempering T° relationships because I don't want to fall below UTS min. Thank you
  4. SiVxyz

    ASTM A350 LF2 Class1

    Thank you for this information. Does anybody have an idea of what type of Cv value we could get after tempering at 1000°F, 1100°F, etc.
  5. SiVxyz

    ASTM A350 LF2 Class1

    I need to know what type of Charpy value I could get after normalizing and tempering ASTM A350 LF2 Class1. I tried normalizing only and results are just passing to minimum. Thank you
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