The properties of grey cast iron, gray iron
Grey cast iron is cheaper
and easier for production, so this material has been widely used for
industrial and residential fields. Therefore, learning about its
property is very important.
1. Chemical Properties of grey cast iron
According to the different grades, the grey cast iron has different
chemical components, however, normally, all
gray iron grades have the
following chemical component range:
Carbon (C) 2.8 - 3.9%, Silicon (Si) 1.1 - 2.6%, Manganese (Mn) 0.5 -
1.2%, P ≤ 0.3%, S ≤ 0.15%.
However, you can not inspect the quality by chemical components. The
iron foundries have right
to adjust them as long as they can meet the mechanical properties.
2. Mechanical Properties of grey cast iron
According to the different grades, grey cast iron has different
tensile strength is between 72500 psi to 188500 psi. The
yield strength is between 21700 psi to 72500 psi. Grey iron castings
almost have no elongation.
The impact toughness is less than 11 J/cm2, so if your parts need to
stand impact, then ductile iron
will be the better choice.
The hardness of gray iron is between 145 to 280 HBS (Brinell
Hardness). If customers have special requirements to the
hardness, you should tell the casting suppliers, otherwise, hardness
can not be an inspection standard.
Main Casting Products|
Cast Iron Plate
Manhole Cover Casting
Warping Head Casting
Ductile Iron Belt Pulley
Cast Iron Flywheel
Boiler Ash Door
Cast Iron Stove Grate
Cast Iron Brackets
Cast Iron Weight
Large Cast Steel Bracket
Cast Iron Drainage Pipe
Cast Iron Pipe Fittings
Burner Grates for Gas Stove
Grey Iron Counter Weight
Cast Iron Axle Support
Cast Iron Blocks
Cast Iron Truck Castings
Cast Iron Tractor Parts
Cast Iron Stove Parts
Pump Shell and Valve Body
Cast Iron Umbrella Base