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Applications | Specifications | Mechanical and Chemical Data
Cast Iron G2 Dura-Bar is a non-ductile, pearlitic gray iron, exhibiting good machinability, wear resistance, and vibration dampening. G2 will not yield nor elongate before fracture.
G2 Dura-Bar 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.
G2 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.
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.
Gray Iron, Class 40
Safety Data Sheet | Weight Calculator | Mill Test Reports
Purchase Hollowbar G2 | Rectangle Bar G2 | Round Bar G2 | Square Bar G2
ASTM |
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A48 |
Physical Properties G2 | |||||
| |||||
---|---|---|---|---|---|
Density | 0.253 lb/in3 | ||||
Ultimate Tensile Strength | 40 ksi | ||||
Shear Strength | 58 ksi | ||||
Hardness Rockwell | Brinell | B87-105 | 180-302 | ||||
Elongation at Break Percentage | 1% | ||||
Reduction of Area | 2% | ||||
Modulus of Elasticity | 18,000 ksi | ||||
Poisson's Ratio | 0.29 | ||||
Machinability Percentage | 125% | ||||
Melting Point | 2,050 °F | ||||
Specific Heat | 1.21 x 10^-1 BTU/lb-°F | ||||
Thermal Conductivity | 370 BTU-in/hr-ft^2-°F | ||||
Electrical Conductivity | 7.4% IACS |
Chemistry Information
|
|
Element |
Percentage |
C | 2.7 - 4 |
Sb | 0.02 - 0.2 |
Cr | 0.05 max |
Cu | 0.05 - 0.3 |
Mn | 0.6 - 0.95 |
Fe | 95 |
P | 0.05 - 0.2 |
Si | 1.8 - 3 |
Sn | 0.1 - 0.3 |
S | 0.03 - 0.07 |