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Satin finish on stainless castings





2003

I want to obtain a satin finish of 32 Ra roughness (0.8 micro millimeter) on Stainless Steel Investment Castings 304/316/304L and 316L of different contours and shapes pump casing and impellers. Obtaining this finish would be in steps I suppose. First is the casting scale, then minor surface porosity. Shall be thankful if someone could recommend a sequential process with Grit Sizes / types of abrasives to be used.

Jatin B. Thakkar
investment castings - Sihor, Dist Bhavnagar, Gujarat, Gujarat, India



2003

Are you sure you are talking about Ra? I wouldn't be surprised if that finish can't be achieved from your investment casting and/or parts.

tony kenton
AF Kenton
retired business owner - Hatboro, Pennsylvania


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