When it comes to the tensile strength of cast iron, toughness and plastic are lower compared to cast steel, though it has a significant compressive strength like that of cast steel. Cast iron is also generally used in materials having the worst mechanical properties, while the matrix of mechanical properties of Grey Cast iron also exhibits some effect, iron graphite sheets thick, the ferrite matrix of cast iron graphite sheets thick, hardness and strength of the minimum, it is generally employed for gas stove parts and other low requirements depending upon the tensile strength.

If you take the Pearlite matrix of cast iron, it contains small graphite, higher hardness and strength, and is considered an important casting material for more important requirements. The graphite cast iron piece’s Ferrite pearlite matrix is thicker compared to pearlitic gey cast iron; therefore, it exhibits worse performance compared to pearlitic Grey iron. Thus, there is a great demand for pearlite matrix of Grey iron in the industry.

Applications:

Grey Cast Iron has great casting characteristics, excellent vibration damping, low snatch sensitivity and excellent machinability. Let's see the magnetic properties of Grey Cast Iron which vary widely, ranging from low permeability and high coercive force to high permeability and low coercive force.

It is suitable for small loads as there is no friction and wear and tear and goes into the manufacture of covers, protective covers, hand wheels, oil pans, floors, frames, small handles, hammers, etc.  They are great for a moderate load of castings including the box, frame, base, bed, knife, table, bearing seat, pump, cover, wheels, pipe, valve, motor blocks, flywheel and other applications.

It can withstand heavy loads and a certain degree of corrosion resistance or degree of tightness of the more vital castings including gear, cylinder, flywheels, base, cylinder block,  bed, piston, cylinder liner, brake wheel, gearbox, medium pressure valve, coupling plate, etc.

Under high air tightness, wear and high loads, it finds application in important castings including shears, automatic lathe beds, heavy machine tools, high-pressure hydraulic parts, frames, force larger gear, piston rings, bushings, cams, cylinder blocks, large engine crankshaft, cylinder head, cylinder liner, etc.