Re: Coating on Crankshaft - high chromium carbon steel coating


Posted by Gordon England (62.252.0.12) on 17:52:39 13/06/06

In Reply to: Re: Coating on Crankshaft posted by ram chattopadhyay

Hi Chris
It is not wise to purely specify a thermal spray coating by a Rockwell C hardness alone. 13Cr steel and molybdenum coatings have been used on crankshafts (mainly repair) successfully for many years, very often out performing none coated steels with much higher hardness.
With arc spray your choice of wires to achieve hardness above 50 HRC becomes limited to a few composite or cored wires (material too hard to make conventional wire). Some wires that may be worth looking at are high chromium steels/irons based materials like TAFA 95MXC or 96MXC, Sulzer Metco SM 8222, Armacor M or 16 and others...
Regards Gordon


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