Grey Iron Casting

• Good melting property.

Grey iron can be melt in low temperature around &#;, and melted grey iron has very good liquid property, it means that grey iron casting can be designed as thin thickness 4.0mm only, but ductile iron will be difficult for 4mm thickness wall.

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• Cheap material.

Grey iron is the cheapest material in all metal grade. It&#;s widely used in many usual application, such as Fence, solid pipe, lathe bed and others.

• Good property.

Grey/Gray Iron tensile strength normally ranges from 20,000 to 60,000 lb/in2 and is a function of chemistry, graphite morphology, and matrix microstructure. And yield strength or elongation is not normally required in Standard.

The most important property is that grey iron is very stable, it&#;s a good property for lathe bed and press machine body, and it also widely used as guide rail for lathe.

Grey iron also have good corrosion resistance property, it&#;s suitable for sewer system which don&#;t have pressure, such as EN877 soil pipe, gully grating.

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Gray iron was the original cast iron, although it has recently been replaced in many applications by other iron-carbon alloys with a stronger tensile strength. This material obviously contains iron, but is distinguished from other iron materials by the presence of carbon and silicon. Gray iron is cast much like any other metal; it is poured into a mold and extracted after it cools.

There are several different casting methods through which gray iron is molded, including green sand molding, shell molding, and centrifugal molding. The method by which the gray iron is cast can have varying effects on the mechanical properties of the metal, especially in respect to its cooling rate.

Additionally, the composition of the material can also provide different advantages and disadvantages. The presence of graphite makes the material easy to machine and provides great wear resistance. The material is also relatively inexpensive to create which makes the material a common choice for all kinds of engineering applications.

Gray iron castings are widely used in the automotive, appliance, agricultural, and machinery industries. Gray iron can be found in pump housings, electrical boxes, engine blocks, and decorative castings.

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