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ASTM A48 Class 30 - Gray Cast Iron
ASTM A48 class 30 is the most common material of
gray cast iron. It is USA
grade, also equal to GG20 in Germany, HT200 in China, FC200 in
Japan, G20 in Italy, T220 in Australia or ISO 200.
According to the standard of ASTM A48,
this material has min. tensile strength 207 Mpa. Brinell hardness is
about 187 - 241 BHN.
The price of gray iron class30 is comparatively very low as for high
grades of gray iron and ductile iron.
According to the quotation of Dandong
Foundry in Sep. 2011, its FOB China was about 1.25 USD/kg by
green sand casting
process, 1.39 USD/kg by
resin sand casting process, 1.47 USD/kg by
shell molding process. These
prices were only for rough castings without any machining works.
Class30 grey cast iron has very wide application. It can be used to
produce many important castings with medium or larger pressure load,
and has requirements of air seal or corrosion-resistance, such as
machine bases, supports, brackets, boxes, houses, machine body,
bearing pedestal, workbench, belt pulley, end cap, pump casing,
valve body, pipe fittings, flywheel, engine base, cylinder stator,
gears, gear boxes, brake disc, pressure valve bodies,
gas stove burner, manhole
covers etc.
 
 
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Stove Burner
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Manhole Cover Casting
Brake Drum
Warping Head Casting
Ductile Iron Belt Pulley
Cast Iron Flywheel
Boiler Ash Door
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Tractor Gearbox
Pump Body
Cast Iron Brackets
Cast Iron Weight
Gear Casting
Large Cast Steel Bracket
Cast Iron Drainage Pipe
Flange Castings
Cast Iron Pipe Fittings
Burner Grates for Gas Stove
Grey Iron Counter Weight
Cast Iron Axle Support
Cast Iron Blocks
Gas Burner
Cast Iron Truck Castings
Cast Iron Tractor Parts
Cast Iron Stove Parts
Pump Shell and Valve Body
Cast Iron Umbrella Base |
