Green sand, resin sand, shell molding, iron and steel castings
produced by metal foundries, casting suppliers and exporters in China
As for the most of
and casting suppliers in China, the green sand, resin sand and shell
molding are the normal production processes, the cast iron and cast
steel are the normal casting materials.
1. Green Sand Casting
Most of sand castings were
produced by green sand.
It is mainly because its low cost, simple production equipments and
flexible process. Currently, the green sand rough
casting prices are about
1.24 USD/kg for grey iron, 1.35 USD/kg for ductile iron.
2. Resin Sand Casting
Resin sand is a type of
Furan resin self-hardening sand. After heating, the sand will become
solid, so it could produce middle and large castings with complex
structure and high accuracy. However, the Furan resin material is
costly, so cause high prices. Currently, the resin sand rough
castings are about 1.38 USD/kg for
grey iron, 1.49 USD/kg for
3. Shell Molding Casting
Shell molding process is
also called as hot shell and core molding, which uses yellow
phenolic resin as the sand binder. After baking, the resin sand
molds become very hard and smooth, so the castings made by this mold
will have very good surface quality and high dimensional tolerance.
This process is suitable to produce small and middle sizes iron
castings with high quality requirements and complex structures, or
with thin wall thickness. But this resin sand can not be recyclable,
so it will be costly. Currently, the rough casting prices by this
process is 1.47 USD/kg for gray iron, and 1.58 USD/kg for ductile
4. Cast Iron Products
Metal castings are the base of industries, so there are many types
of metal parts were made by casting process.
Cast iron products
include metal parts for tractors, trucks, various machinery,
automotive, pump, valve, pipe fitting, drainage system, stove,
boilers, boats and many more areas.
5. Cast Steel Products
Steel castings also have
very wide demand. Alloy steel castings have special properties such
as heat-resistant, anti-corrosion, wear resistant, according to
their added alloy such as Ni, Cr, Mo, Cu etc. In China, most cast
steel products were produced by sand casting, lost wax casting and
lost foam casting process, however, shell molding process is seldom
used for now in China.
6. Metal Foundry, Casting Supplier,
Exporters in China
There are many metal casting
suppliers in China. Some are metal foundries, some are
machining workshops that have their casting sub-suppliers, some are
trading companies. As for middle and large suppliers, they have
their own export license, so they could enjoy export tax rebates,
which means they could offer lower prices to buyers.