if the cast iron consists of carbon in its free state then it is called a grey cast iron mechanical properties of grey cast iron
tensile strength - 270 - 400 N/mm2
Brinell hardness number - 207 - 320
Modulus of elasticity - 1*105 N/mm2
poisson's ratio - 0.23
modulus of rigidity - 0.350 * 105
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Nonferrous metals are specified for structural applications requiring reduced weight, higher strength, nonmagnetic properties, higher melting points, or resistance to chemical and atmospheric corrosion. They are also specified for electrical and electronic applications.
grey
Cast Iron does not rust or corrode as steel can
because the cast iron is a ferrous metal
It has austenitic matrix with very good heat and corrosion resistance properties upto 1500 F
Welding electrode specfication for welding of fg260