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Cast Iron Components

Cast Iron Components

Cast Iron Components

We provide Standard and High-Quality Cast Iron Components.

 

Green sand casting is a low-cost means of producing many of the engineered components of today’s modern equipment and machinery. The practice of melting metal and pouring it into a desired shape dates back centuries. While the basic concept of sand casting hasn’t changed over time, the methods have.

 

Grey iron, commonly referred as cast iron, is the most common of the cast iron alloys. Relatively cheap and easy to produce, grey iron finds its way into a number of engineering applications where strength and toughness are not the primary concern. The graphite present in grey iron exists in flake form, which is the primary physical difference when comparing grey, compacted graphite, and ductile iron.

 

Ductile iron, sometimes referred to as nodular or spheroidal graphite iron, is a relative newcomer to the field of cast irons. Developed in the 1940’s, ductile iron has seen rapid and continued growth as a viable engineering material. With mechanical properties that compete with steels, ductile iron is being used more often as a cost savings tool in fabrication to casting conversion projects.

Variations of Green Sand Molding:

  • High-Density Molding
  • Flaskless Molding
  • Tight-Flask Molding
  • Skin-Dried
  • Dry Sand Molding
 

Grades of ASTM A48 Grey Iron Produced at Esteem Auto

ASTM A48 Grade Ultimate Tensile Strength (UTS) Brinell Hardness
Class 30 30,000 p.s.i 187-241
Class 35 35,000 p.s.i. 207-255
Class 40 40,000 p.s.i 217-269
Desirable properties Common Applications
Excellent vibration dampening capability Brake drums, rotors and clutch components
High compressive strength Engine blocks, cylinder liners and heads
Good machinability Pulleys, sheaves and idler wheels
Exceptional heat transfer Gears
Low cost alternative to other engineering materials Hydraulic valves and components
ASTM A536 Grade (SAE) Tensile Strength Yield Strengths Elongation Brinell Hardness
60-40-18 (D4018) 60,000 p.s.i. 40,000 p.s.i. 18 % 187 Max
65-45-12 (D4512) 65,000 p.s.i 45,000 p.s.i 12 % 156-217
80-55-06 (D5506) 80,000 p.s.i. 55,000 p.s.i. 6 % 187-255
100-70-03 (D7003) 100,000 p.s.i 70,000 p.s.i. 3 % 241-302
Desirable properties Common Applications
Strength comparable to some steels Shaft and drive components
Ductility Valve Bodies
Impact resistance Couplers
Toughness Lift arms and linkages
Low cost alternative to steel castings and fabrications Brackets
  Discs and digger teeth