Continuous Cast Iron

65-45-12 Ductile Iron

Continuously Cast Iron 65-45-12 Ductile Iron
Typical Analysis
C Mn P S Si
3.6-3.9 0.1-0.4 .10
Max
.015
Max
2.3-2.8

*numbers are in percentage*

Characteristics
  • Ferritic, as-cast, 65-45-12, ductile iron will be the softest of the regular grades of ductile iron. The matrix structure will contain some pearlite and less than 5% well dispersed carbides. In bars over 2 in. (51 mm) diameter the pearlite content will range up to 25%. This microstructure permits high speed machining with good surface finishes.
Typical Applications
  • Hydraulic-pump rotors, gear blanks, rams, machine-tool gibs, foundry patterns plates, ways, collets, valve bodies, manifolds, compressor valves, hydraulic cylinder bushings, rod bushings, etc.
Typical Heat Treatment
  • Because of its ferritic structure, this material is not intended for hardening
Mechanical Properties
  • As-cast 65-45-12, ductile iron has approximately the same tensile and yield strengths as hot rolled SAE 1035 steel in the as-rolled condition. Elongations in as-cast, 65-45-12 will be slightly lower than SAE 1035 steel in the as-rolled condition. This material is manufactured to produce material similar to ASTM specification A536.
  • Tensile tests are taken from the actual as-cast bar.
  • Tensile Strength (min)* - 65,000 psi
  • Yield Strength (min)* - 45,000psi
  • Elongation (min)* - 12%
  • * Determined as prescribed by ASTM standards.
Continuously Cast Iron 65-45-12 Ductile Iron Hardness
  • Hardness properties listed are minimum, maximum across the bar. Hardness for shapes other than rounds will be supplied on request
Bar Dia - inches Bar Dia - centimeters BHN min to max
1 - 2 2.5 - 5.1 152 to 212
2 - 3 5.1 - 7.6 152 to 201
3 - 6 7.6 - 15.2 143 to 201
6 - 10 15.2 - 25.4 131 to 201
10 - 19 25.4 - 48.2 131 to 201

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