The selection of the best graphite grade for your application…

It is clear then that choice of material is vitally important to obtain a quality end product. Selection depends mainly on the composition of the alloy to be cast: grey iron requires a graphite resistant to wear; brass, a graphite relatively dense but with enough open porosity to allow zinc to evaporate in the area of the solidification front; non-ferrous alloys containing elements like nickel or cobalt need high density graphite to reduce chemical attack of the graphite die.

Further parameters to consider are:

	Size and shape of the cast section
	Speed of casting
	Total amount of alloy to cast
	Casting orientation (vertical or flat)

 

 

 

In addition to the graphite grade chosen, the results are also a function of die design, quality machining, and the specific characteristics of casting installation. We can provide technical services to assist you finding a suitable graphite for your application. However, in many cases optimal grade selection can be made only through actual trials. The accompanying charts may be used as an indicative guide for grade selection.