A 351
  Castings, Austenitic, Austenitic-Ferritic (Duplex), For Pressure 
  Containing Parts

A 487
  Steel Castings For Pressure Service

A 743
  Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion        
  Resistant For General Applications

A 744
  Castings, Iron-Chromium-Nickel, Corrosion Resistant For Severe  
  Service

A 890
  Castings, Iron-Chromium-Nickel-Molybdenum, Corrosion Resistant, 
  Duplex (Austenitic/Ferritic) for General Applications