CASTING OVERVIEW

 

 

CASTING OVERVIEW

 

Fastest Turn-Around in North America

 

Consistent Quality with the Shortest Lead Times 

 

CASTING OVERVIEW Photos

 

 

Our casting capacities and value added services:

 

 

Gray Iron Castings

 

From ounces to 5,000 pounds

 

Gray iron is selected for ease of machining, high compressive strength, better thermal conductivity and excellent vibration absorption.

 

Carbon content is by far the most important element for gray iron (usually 2% to 4%) to create tensile strength and machinability. When molten cast iron solidifies some of the carbon precipitates as graphite, forming tiny, irregular flakes within the crystal structure of the metal which enhances the desirable properties of cast iron, the flakes disrupt the crystal structure leading to cast iron's characteristic brittleness.

 

Mechanical Properties

Class 30

Class 35

Class 40

Class 45

 

Tensile Strength (PSI)

30,000

35,000

 40,000

45,000

 

BHN (Typical)

170-241

187-241

187-255

196-255

 

Suggested Minimum

Wall Thickness

3/16"

3/8"

1/2"

5/8"

 

 

 

 

Ductile Iron Castings

 

From ounces to 3,000 pounds

 

In ductile iron the graphite forms into spherical nodules rather than flakes, thus inhibiting the creation of cracks and providing the enhanced ductility that gives the alloy its name.


Ductile iron has higher tensile strength and toughness similiar to steel.

 

Mechanical Properties

60-40-18

65-45-12

80-55-06

 

Tensile Strength (Min PSI)

60,000

65,000

80,000

 

Yield Strength (Min PSI)

40,000

45,000

55,000

 

Minimum Elongation in 2”

18%

12%

6%

 

BHN (Typical)

143-187

156-217

187-255

 

 

 

At Dakota Foundry, we can produce both Gray Iron Castings and Ductile Iron Castings in low quantities at a very rapid turnaround.

 

Value Added Services

  • Coatings (powder coat, liquid paint)
  • Heat Treating 
  • Anealing 
  • Machining 

 

Industry Leading Quality Control

 

  • Metalurgy testing
  • Mold sand testing

 

 

   

 

 

 

 

 

 

CASTING OVERVIEW Video

 

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