Cast Iron Gas Stove Grates
Cast iron grates are an important
component for gas stoves, our foundry has produced some stove grates
for our clients in USA and Germany for years.
Cast Iron Material
The material is normally grey iron ASTM
A48 Class 20, Class 25, and Class 30. In Germany, it will be
GG15 and GG20 grades. Gray cast iron has better cast ability, and
better resistance to deformation of heating, most important, cheaper
cast iron prices.
Casting Production Process
Most of gas stove grates were made by
shell molding process, also known as pre-coated resin
sand casting process. This process could meet better surface
quality, less surface sand casting defects, and less deformation.
However, the disadvantage will be higher production costs than green
Metal Pattern Costs and Casting Prices
The metal pattern costs for gas stove grates will be higher than
normal iron castings, it is
because it will cause more machining work time. The price of
castings will be higher too, because it will use more resin sands,
and more work time for grinding and cleaning. Most of stove grates
have the flatness and straightness requirements under 1.0 mm or
under 1.5 mm, so the iron foundry inspectors need to inspect them
one by one, and need to rectify the over-sized casting parts, all of
these works cause the high prices.
Besides of cast iron gas stove grates, Dandong Foundry in China can
also produce many types of cast iron coal stove grates, and wood
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