Gray Iron
Gray Iron Castings
Gray or grey cast iron is used for castings. Castings are usually alloys of carbon and iron parts produced in foundries. They also consist of traces of phosphorous, sulfur, silicon, and manganese. The microscopic structure of gray iron castings reveals the presence of graphite flakes inside.
The castings also possess good tensile strength, ductility, impact resistance, compressive strength, and yield strength, making them suitable for many hydraulic components, gears, pumps, stove parts, manhole covers, etc. The castings are also one of the cheapest iron castings that can withstand thermal cycling well without much effect in the long run to its structure or function.
History
The history of gray iron dates back to the 5th century. Gray iron is the first type of iron used in China to make pots, weapons, plowshares, etc. The castings came into heavy usage in the late 15th century, when European artisans started using them to make heavy cannons for the British Royal Navy.
Gray or Grey Iron Properties
Iron and Carbon
Plowshares, automotive suspension components, truck parts, valve weights, tractor parts, machinery bases, etc.
Agriculture, automotive, irrigation, architecture, ventilation, construction, transportation, etc.
Not weldable
No Elongation
Comparatively low tensile strength
Good tensile strength, ductility, impact resistance, compressive strength, and yield strength.
Casting Processes
We at MACA Casting and Machine, as one of the finest foundries in the world, manufacture different types of gray iron castings belonging to Classes 20, 30, and 40. Whether you need casting design assistance or new gray iron castings for your parts, we can design all aspects of gray iron castings, from casting and machining to coating and assembly.
Reach out today to discuss your gray iron casting requirement. We have a dedicated team of consultants and engineers ready to guide you through the process.