Cast Iron Accessories Made in China
Cast iron accessories are also called as
cast iron fittings or cast iron mountings. The accessories are parts
or components of machines.
The material of cast iron accessories includes
grey iron and alloy cast
iron. For example, pipe
fittings, they are usually made by ductile iron QT450-10 and
QT400-18. Water pump fittings,
they are usually made by grey iron HT250 and HT300 in China.
The type of cast iron accessories includes standard accessories and
OEM accessories, or divided into alloy cast iron, grey cast iron and
ductile iron accessories according to the materials.
Alloy cast iron accessories
Alloy cast iron is the common cast iron with alloying elements and
has special properties. Usually alloying elements include silicon,
manganese, phosphorus, molybdenum, copper, titanium, antimony and
tin, etc. Alloying elements can change the matrix of cast iron, and
they make cast iron to have higher heat resistance, wearing
resistance property, corrosion resistance, non-magnetic and low
temperature impact resistance, etc.
Grey cast iron accessories
In general, the materials of large cast iron accessories are grey
The followings are the advantages of gray iron accessories.
1. The wear resistance of grey iron is good, because the graphite in
grey iron is useful to the lubrication.
2. The machining property of grey iron is very good, because the
gray cast iron with high carbon content is close to eutectic
composition, So it has low melting point, and has better liquidity,
its shrinkage is
small, so is suitable for structure complex or thin-walled castings.
Ductile cast iron accessories
Ductile iron has higher strength and toughness than grey iron.
Moreover, the corrosion resistance of ductile iron is better than
The application of ductile iron is very wide, such as automobile
parts, valve bodies, valve decks, transmission gears, etc.
There are many types of cast iron accessories, such as the cast iron
parts for pumps, safety valves, drain valves, light oil burners,
heavy oil burners, communication manholes, tree pool flats manholes,
motors, fireplaces, gear pumps, etc.