Dear All
Please tell me is it necessary to have hard punch "SA 578 LEVEL B" for 20 mm THK plate SA 516 GR 60/70. Stenciling showing "SA 578 LEVEL B" but no hard punch seen.
I want to know that which Heat treatment should i follow for flowing situation Stress relieving or Normalizing
DATA:- Ellipsoidal dish end having thickness 22 mm (NOM),Fiber elongation exceeds 5%,MOC=SA 516 GR.70N. Where Normalizing requirement given in CODE.