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Applications | Specifications | Mechanical and Chemical Data
Cast Iron 65-45-12 Dura-bar is a ductile iron grade offering high wear resistance, strength, durability, ductility, with excellent consistency, impact resistance, machinability, and finish. Tensile and Yield Strength are comparably strong to 1040 steel in the "as-rolled" condition.
65-45-12 Dura-Bar is manufactured through the Continuous Cast process, which is actually closer to extrusion than casting. However, this process causes all of the impurities in the molten iron to float to the top of the crucible, away from the metal being used to create the bar. This removes porosity and other impurities common to other cast iron grades.
65-45-12 can be oil quench hardened from 1600 F (885 C) 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.
It is typically used in the automotive and power industries for gears, rotors, pistons, valves, rollers, bushings, chucks, flywheels, pile drivers, rams pulleys, housings, and motorcycle disc brakes.
DURA-BAR is a trademark of Dura-bar.
Safety Data Sheet | Weight Calculator | Mill Test Reports
Purchase Rectangle Bar 65-45-12 | Round Bar 65-45-12 | Square Bar 65-45-12
ASTM |
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A536 |
Physical Properties 65-45-12 | |||||
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Density | 0.253 lb/in3 | ||||
Ultimate Tensile Strength | 72 ksi | ||||
Yield Tensile Strength | 50 ksi | ||||
Shear Modulus | 9,500 ksi | ||||
Shear Strength | 54 ksi | ||||
Hardness Rockwell | Brinell | B72-96 | 130-217 | ||||
Elongation at Break Percentage | 18% | ||||
Reduction of Area | 5% | ||||
Modulus of Elasticity | 24,000 ksi | ||||
Poisson's Ratio | 0.29 | ||||
Machinability Percentage | 160% | ||||
Melting Point | 2,050-2,120 °F | ||||
Specific Heat | 1.2 x 10^-1 BTU/lb-°F | ||||
Thermal Conductivity | 360 BTU-in/hr-ft^2-°F | ||||
Electrical Conductivity | 7.4% IACS |
Chemistry Information
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Element |
Percentage |
C | 3.6 - 3.8 |
Ce | 0.005 - 0.2 |
Cr | 0.03 - 0.07 |
Cu | 0.15 - 1 |
Fe | 90.738 - 94.175 |
Mg | 0.03 - 0.06 |
Mn | 0.15 - 1 |
Mo | 0.01 - 0.1 |
Ni | 0.05 - 0.2 |
P | 0.03 max |
Si | 1.8 - 2.8 |
S | 0.002 max |