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Grey cast iron ASTM 40

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Grey cast iron ASTM 40
Chemical composition: C=2.7-4%, Mn=0.8%, Si=1.8-3%, S=0.07% max, P=0.2% max
Property Value in metric unit Value in US unit
Density 7.06 *10³-7.34 *10³ kg/m³ 441-458 lb/ft³
Modulus of elasticity 124 GPa 18000 ksi
Thermal expansion (20 ºC) 9.0*10-6 ºCˉ¹ 5.0*10-6 in/(in* ºF)
Specific heat capacity (25 ºC) 490 J/(kg*K) 0.117 BTU/(lb*ºF)
Thermal conductivity 53.3 W/(m*K) 370 BTU*in/(hr*ft²*ºF)
Electric resistivity 1.1*10-7 Ohm*m 1.1*10-5 Ohm*cm
Tensile strength 276 MPa 40000 psi
Elongation 1 % 1 %
Shear strength 400 MPa 58000 psi
Compressive yield strength Min. 827 MPa Min. 120000 psi
Fatigue strength 138 MPa 20000 psi
Hardness (Brinell) 180-302 HB 180-302 HB
Wear resistance Low
Corrosion resistance Low
Weldability Low
Machinability Good
Castability High

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grey_cast_iron_astm_40.txt · Last modified: 2012/06/02 by dmitri_kopeliovich
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