Austenitic Gray Iron

   Minimum Chemical  
Specifing Spec.Type:Tensile Requirements %Notes:
Body:Number:
StrengthBHNSiMnNiCuCrSMo  
   PSI: Max.     MaxMax  
ASTMA 436125131-3.001.00-.50-13.50-5.50-1.50-0.12 Where some machining is
    183 2.801.5017.507.502.50  required, the 3.00-4.00
  1b30149-3.001.00-.50-13.50-5.50-2.50-0.12 chromium range is 
    212 2.801.5017.507.503.50  recommended.
  225118-3.001.00-.50-18.00-0.501.50-0.12   
    174 2.801.5022.00Max.2.50  Castings can be heat treated 
  2b30171-3.001.00-.50-18.00-0.503.00-0.12 as specified in ASTM A 436.
    248 2.801.5022.00Max.6.00    
  325118-2.601.00-.50-28.00-0.502.50-0.12 Due to the differences in
    159 2.001.5032.00Max.3.50  mechanical properties and
  425149-2.605.00-.50-29.00-0.504.50-0.12 chemical composition of the 
    212 6.001.5032.00Max.5.50  different types, Oil City may 
  52099-2.401.00-150-34.00-0.500.100.12 require minimum order 
    124 2.001.5036.00Max.Max.  quantities due to induction
  625124-3.001.50-.50-18.00-3.50-1.00-0.121.00melting requirements.
    174 2.501.5022.005.502.00    
  D-5S65131-2.304.90- 1.000.0834.00- 1.75-  















Ref: ASTM Annual Book of Standards Ferrous Castings: Ferroalloys






Section 1 Volume 01.02 for additional data.