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DUCTILE IRON PROPERTIES

Type 65-45-12 80-55-06 100-70-02
Tensile strength (psi) 65,000 80,000 100,000
Yield strength (psi) 45,000 55,000 70,000
Elongation % 12 6 2
Hardness (BHN) 131-207 207-269 241-302
Heat-treat response n/a Rc 55 min. Rc 55 min.
Microstructure Ferritic (min. 75% ferrite) Partially pearlitic (50% pearlite) Pearlitic (min. 75% pearlite)

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