I am unable to use A-36 material. I have uploaded the list of approved materials. Please let me know if you know where I can find any of them.
Thanks
http://files.engineering.com/download.aspx?folder=16502dec-08a6-47a0-be5a-58ac54611b7f&file=Material_Spec..pdf...
Quanities are too small for a mill order. I have tried all the service centers I could think of. Including Ryerson, Oneal, Central, Alro, Chapel, Mac, Olympic, among many others.
I am producing a part for my customer that is a bracket made from 5/16" Plate. The problem I had for the first run is that the parts cracked at the radus at the 90º angle. I orginally made the parts from A572-50. I also have some alternative materials I can use, but have not been able to locate...
Grade F6NM is a martensitic stainless steel. The additions of Nickel and Molybdenum, which gives it excellent sub zero notch ductility, superior to other standard 13 Cr, 410 and 420 Mod martensitic stainless steels.
This steel is air hardening, with little danger of thick sections cracking...