Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations IDS on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. scides

    Extrapolation of Charpy values for lower temperatures

    I was worried you were going to say that. Thank you very much for your help!
  2. scides

    Extrapolation of Charpy values for lower temperatures

    "For a specific value regarding minimum CVN impact energy, I would use 20 ft-lbs (27 J) at the minimum temperature of interest." How did you arrive at 27J? Is there a reference or standard that reccomends CVT impact energy values for different applications? I've found values ranging from 18J to...
  3. scides

    Extrapolation of Charpy values for lower temperatures

    Thanks metengr. Q235 is similar to A36 with regards to processing and properties. The chemistry is where things vary a little. Grades A and B allow higher P and S content than grade C. I've been reading more since you replied and have a few more questions: 1) Which value should I be using for...
  4. scides

    Extrapolation of Charpy values for lower temperatures

    Here is some background on the material before I get to the question: From GB/T700-06 Q235 Gr A 21J @ +20C, Carbon .22% Gr B 21J @ 0C, Carbon .20% Gr C 21J @ -20C, Carbon .17% The graph in the link below shows that there can be a fairly wide temperature range between maximum impact energy and...
  5. scides

    Weld strength of nitrided parts

    What is the magnitude of the effect on weld strength of welding a nitrided part? The formation of iron nitrides will have some effect but I have not been able to find values suitable for design calculations. A little background into my application: A nitrided 1010 pin is welded all around to...
  6. scides

    Corrosion resistance of nitride steel treatments

    How does the corrosion resistance of a nitrided 1010 steel part compare to e-coating, dacromet, zinc plating, etc... the same part? Is there a standard or article out there that compares surface treatments that would include nitriding?

Part and Inventory Search