Austempered Ductile Iron Castings
We represent the best Austempered Ductile Iron foundries in the USA and back it up with professional and ongoing service.

Supplier Of The Following Austempered Ductile Iron Grades:
ADI Grade 4
ADI Grade 5
ADI Grade 1 ASTM A897 Grades of ADI

1. What ASTM Grades of ADI do you source?
We supply all grades of ASTM A897-06 including 110-70-11, 130-90-9, 150-110-7, 175-125-04, 200-155-2 and 230-185-1 (Also known as grades 750, 1, 2, 3, 4 and 5.)
2. What range of sizes are available?
Weight ranges from a few ounces up to 5000 pounds. Dimensions up to 70” x 70”.
3. What EAU can you provide?
This is weight dependent, but as a general rule we can supply up to 50,000 pieces a year in weights up to 150 pounds. From 150 pounds to 500 pounds we can service EAUs up to 2,500 pieces. 500 pounds and up 1,000 EAU.
4. What type of molding processes do you have available?
Both greensand and no-bake. Greensand includes both semi-automatic and automatic molding lines (including Sinto, Hunter, B&P and Disa molding)
5. What type of quality control procedures do you have in place?
The majority of our partner foundries are ISO Certified. We can also offer TS Certified facilities for applications meeting certain volume and weight criteria.

6. States We Serve

  • Nebraska
  • Kansas
  • Oklahoma
  • Minnesota
  • Iowa
  • Missouri
  • Wisconsin
  • Illinois
  • Indiana
  • Kentucky
  • Michigan
  • Ohio
  • Pennsylvania
  • North Carolina
  • Virginia
  • West Virginia

ADI Specifications
ASTM A536-84
Grade Min. Tensile psi Min. Yield psi Min. Elongation % Typical Hardness HBW
(3000kg load)
110-70-11 110 70 11 241-302
130-90-09 130 90 9 269-341
150-110-07 150 110 7 302-375
175-125-04 175 125 4 341-444
200-155-02 200 155 2 388-477
230-185-01 230 185 1 402-512

  Standard Specifications Characteristics Applications
Malleable Iron • ASTM A47 & ASME SA47: ferritic malleable iron castings
• ASTM A197: cupola malleable iron
• ASTM A220: pearlitic malleable iron
• ASTM A338: malleable iron flanges, pipe fittings & valve parts for railroad,
marine & other heavy-duty service up to 650F (343C)
• ASTM A602 & SAE J158: automotive malleable iron castings
Soft & extremely ductile. Chains; sprockets; tool parts & hardware; connecting rods; drive train & axle components;
and spring suspensions.

Austempered Ductile Iron castings ( ADI castings) are manufactured by heat treating ductile cast iron; small quantities of nickel, copper and molybdenum are added to enhance hardenability. ADI castings offer exceptional strength-to-weight ratios, with excellent fracture resistance and fatigue strength. ADI castings density is 10% less than steel, so they're an excellent replacement for steel forgings. Replacing steel forgings with ADI castings also saves weight. ADI castings provide great design flexibility; they offer unique combinations of
noise-damping properties, high strength, and wear resistance

Markets that are heavy users of this technology include:

  • Construction and Mining Equipment
  • Material Handling
  • AG Implement and Equipment
  • Automotive
  • Heavy Truck
  • Railroad 

Typical applications include:

  • Timing Gears
  • CV Joints
  • Steering Knuckles
  • Sprockets, Rollers, Idlers
  • Suspension Housings and brackets
  • Wear Plates  
  • Wheel Hubs
  • Control Arms
  • Plow Points
  • Hitches
  • Crankshafts
  • Flanged shafts

Why Call Carson Castings for a Quote?

1. Expertise in our field - We deal strictly in the sourcing of castings and machined
castings. Highly specialized in Austempered Ductile Iron.

2. Added Value - We provide raw castings or complete assemblies and
everything in between (painting, heat treat and machining).

3. Tooling Options – No-bake and green sand molding. Floor, manual, squeezer,
cope and drag, Hunter, Sinto and Disamatic molding processes.

4. Industry Knowledge - Our years of experience in the casting field ensure we
place your work at a facility suited to your project’s unique needs.


Casting Photo Gallery
Casting Video Gallery