Grey Cast Iron ASTM A48 ClaSS30 Products Manufacturers Gray Iron Metal Castings Supplier

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Product Description and Process

grey cast iron astm a48 class30 products manufacturers gray iron metal castings supplier

 

Production process: green sand molding, pre-coated sand molding and resin sand molding which can produce iron castings from 50 gram to 2000 kilograms

Machining process: CNC machine, machining center, lathe, mill machine, drill machine, etc.

Surface treatment process: paint coating, electrophoretic coating, electrogalvanizing coating, black oxide coating, powder coating, etc.

 

Product Material and Uses

Normally produce with gray iron HT200, HT250, ductile iron 65-45-12, 60-40-18, 80-55-06, 80-60-03, etc.

 

The grey/gray iron casting products are widely used for Auto-cars, trains, trucks, vehicle components, mining machinery components, agricultural machinery parts, textile machinery parts, construction machinery parts, etc.

 

What is Grey Cast Iron?

Grey cast iron (a.k.a. gray iron) is a type of iron found in castings known for its grey color and appearance caused by graphite fractures in the material.  Specifically, what makes grey iron “grey iron,” is the graphite flake structure that is created during the cooling process from the carbon that is in the component.

 

Grey iron is a result of both the materials used and the process used to cast a part.  In other words, the properties of the grey iron will change depending on what materials are melted together to pour into the mold as well as the process that is used for casting (it is primarily the cooling part of the process that defines the characteristics of the cast part versus other parts of the process.).

 

If you use a powerful microscope you can see the graphitic microstructure that makes grey iron so easily identifiable.  In a grey iron casting, you can see little black flakes of graphite.  These flakes cause fractures and cause the material to have a grey appearance. The mechanical properties of grey iron are controlled by the size and shape of the graphite flakes present in the microstructure and can be characterized according to the guidelines given by the ASTM.

 

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Zhengzhou YiLi Machinery Co.,Ltd

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