Using Cu as Alloying Element in High Chrome Alloy Cast Steel - CR4 Discussion Thread

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Suranjan Chattopadhyay Associate Join Date: May 2010 Posts: 26 Good Answers: 1	Using Cu as Alloying Element in High Chrome Alloy Cast Steel 08/07/2010 3:09 AM
	Hi, we have 10.9E10 type pulveriser in our power plant. We get grinding balls for pulveriser from one manufacturer which consists about 0.42% Cu in ball material which is High Chrome alloy cast steel of BHN 640 wheather the OEM dosen'n use Cu for the same. I want to know what is the purpose to use Cu in this alloy and what will be the effect on grinding ball regarding wear. Thanks. __________________ Suranjan Chattopadhyay
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Anonymous Poster	#1 Re: Using Cu as alloying element in High chrome alloy cast steel 08/07/2010 10:20 AM
	Cu slows austenitic transformation, helping the formation of martensites- which is critical for you (thick section castings) However it is also Austenite stabiliser. The supplier must have chosen the chemistry to suit your application.
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