Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations GregLocock 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. Leh_002

    Test failures after machining A4-80 Strain hardened stainless steel

    That’s really interesting Ed, I hadn’t really considered the effect of strain induced martensitic transformation. I’m still wondering what my best option is to prevent future failures, especially as this is a pretty common grade for bolting and I haven’t come across any others having a similar...
  2. Leh_002

    Test failures after machining A4-80 Strain hardened stainless steel

    Hi Ed, Thanks for your reply. A4-80 is an austenitic stainless steel with the same chemistry as 316. Class 80 is UTS if 800MPa min and PS of 600MPa. My initial thought was to start with stronger material but in some cases even material which started at over 1000MPa has failed after...
  3. Leh_002

    Test failures after machining A4-80 Strain hardened stainless steel

    Hi I’m wondering if someone might be able to point me in the right direction with an problem I am seeing. Recently I have been seeing a lot of failures of A4-80 SS following machining. There is a consistently large drop in strength from the starting properties. Sometimes this is as much as...

Part and Inventory Search