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Meehanite GC-40 Flake Graphite Cast Iron

Category Metal , Ferrous Metal , Cast Iron , Gray Cast Iron
Manufacturer Meehanite
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Meehanite GC-40 Flake Graphite Cast Iron.pdf
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Material Notes:
Type GC-40 combines good strength with low coefficient of friction and self lubricating properties. It is easily machinable with a fine, dense, close grain structure. Recommended for heavy brake drums and pressure castings up to 2 1/2" thick.General Meehanite information - Meehanite metal is first melted to a definite degree of undercooling or constitution which is related to the section of the casting to be poured and the range of physical properties such as tensile strength and hardness required. Nucleation with patented mixtures of graphitizing agents results in the removal of undercooling, in the controlled precipitation of graphite and in a fine grained eutectic cell structure which determines the density and physical integrity of the casting. Ordinary cast irons made to chemical specifications which do not include the benefit of controlled undercooling are influenced by mass effect to a maximum degree and for this and other reasons cannot be considered an equivalent to Meehanite metal.Information provided by Meehanite Marketing Association.
Physical Properties Metric English Comments
Specific Gravity 7.25 g/cc
7.25 g/cc
Mechanical Properties Metric English Comments
Hardness, Brinell 190
190
Nominal
Tensile Strength, Ultimate 276 MPa
40000 psi
Tensile Strength, Yield 100 MPa
14500 psi
.01% permanent set
Modulus of Elasticity 114 GPa
16500 ksi
Modulus of Rupture 0.552 GPa
80.0 ksi
Compressive Strength 1030 MPa
150000 psi
Poissons Ratio 0.30
0.30
Fatigue Strength 121 MPa
17500 psi
Machinability 47 %
47 %
Dalcher
Shear Modulus 50.0 GPa
7250 ksi
Shear Strength 276 MPa
40000 psi
Izod Impact Unnotched 16.3 - 27.1 J

@Diameter 20.3 mm
12.0 - 20.0 ft-lb

@Diameter 0.798 in
Thermal Properties Metric English Comments
CTE, linear 11.9 µm/m-°C

@Temperature 37.8 - 538 °C
6.60 µin/in-°F

@Temperature 100 - 1000 °F
Thermal Conductivity 46.8 W/m-K

@Temperature 10.0 - 232 °C
325 BTU-in/hr-ft²-°F

@Temperature 50.0 - 450 °F
Shrinkage 1.0 - 1.3 %
1.0 - 1.3 %
Patternmaker Shrinkage
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