Types of cast iron
Types of cast iron
Waterloo Foundry is a proud manufacturer of custom castings in various alloys, tailored to our customer’s needs. A semi-automatic production line handles both small and medium quantities with certified cast-iron composition.
High-chromium cast-iron
High-chromium cast-iron refers to ASTM A532 grades, which include white cast-irons alloyed for high-abrasion resistance. These are used in mining, for snowplow shoes, asphalt surfaces, etc. The grades are recommended where there is premature wear and a need for improved abrasion resistance. Low-alloyed white iron is not included in this category.
ASTM A532
Specification for abrasion-resistant cast irons;
Grey iron
Grey iron is a lamellar graphite iron, generally used when traction force and strength are paramount. The grades are classified by minimum traction force. Grey iron is high-strength with excellent thermal shock resistance, compressive strength and slight abrasion resistance. It’s also used where cast-iron is required, but without the need for strong mechanical properties.
ASTM A48
Gray iron;
ASTM A278
Gray iron : pressure containing parts for temperatures up to 650oF
ASTM A126
Gray iron: valves, flanges
and pipe fittings;
ASTM A319
Gray iron : elevated temperature for non-pressure containing parts;
ASTM A159
Gray iron : automobile;
ASTM A436
Austenitic gray
iron castings;
Ductile iron
Ductile iron is known as spheroidal graphite cast-iron, or nodular cast-iron. The mechanical properties (elasticity, shock resistance, elongation…) mean that it’s non-brittle and possesses good traction force.
ASTM A395
Ferritic ductile iron pressure-retaining castings for use at elevated temperature;
ASTM A439
Specification for ductile iron castings;
ASTM A476
Specification for ductile iron castings for paper mill dryer rolls;
ASTM A536 (fonte ductile)
Specification for ductile iron castings;
Customized production
Consistent quality
