Continuous Cast Iron

100-70-02 Pearlitic Ductile Iron

Continuously Cast Iron 100-70-02 Pearlitic Ductile Iron
  • Grade 100-70-02 is a non-inventoried item. A wide variety of sizes and shapes is available by special order
  • Grade 100-70-02 ductile iron contains nodular graphite in a matrix of pearlite with small amounts of ferrite. The pearlitic structure maximizes strength and wear characteristics in a non-alloyed as-cast ductile iron. This specification is similar to ASTM A536 grade 100-70-03.
Typical Applications
Fluid Power: Cylinder Blocks, Gerotors, Manifolds, Pistons, Glands, Rotors, Valve.
Machinery: Bushings, Chain Sheave Rollers, Chuck Bodies, Die Blocks, Gears, Gear Racks, Pulleys, Press Rams, Rotary Tables, Tie Road Nuts, Ways, Barrel Rollers (cement truck), Flywheels, Pile Drivers, Pulleys, Rams.(also see fluid power).
Transportation: Pulleys, Gears, Rail Spacers, Hubs, Carriers, Camshafts.
Pump and Compressor: Gears, Housings, Liners, Pistons.
Steel Mill: Guide Rolls, Pinch Rolls, Runout Table Rolls.
Miscellaneous: Disamatic Pouring Rails, Dies.
Typical Heat Treatment
  • Grade 80-55-06 can be oil quench hardened from 1600℉ (885℃) to a minimum hardness of Rockwell C 50 on the outside of the bar. The inside diameter hardness will be less than Rockwell C 50. Lower quench hardnesses on the inside diameters are a result of larger graphite nodules and not a loss of matrix hardness. Typical Jominy end quench test data for 80-55-06 ductile iron are shown in the section on Heat Treating. Similar data applies to 100-70-02.
Mechanical Properties
  • The tensile strength is determined from a longitudinal test specimen taken from mid-radius of the as-cast bar.
  • Tensile strength (min) - 100,000psi
  • Yield strength (min) - 70,000psi
  • Elongation (min) - 2%
Continuously Cast Iron 100-70-02 Pearlitic Ductile Iron Mechanical Properties - Hardness
  • Hardness properties for various diameters are shown in the table below. Hardness properties listed are minimum, maximum across the bar. For rectangles, squares and shapes, the hardness properties will depend on minimum and maximum section thickness and will be supplied on request.
Bar Dia - inches Bar Dia - centimeters BHN min to max
01.000 - 20.000 25 - 508 241 to 329

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