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topic 5525

Zinc Plate on Stainless


Is there a simple immersion treatment for activating 400 series stainless steel that will accept an acid zinc plate? The astm b 254 spec gives you some immersion treatments, but does not mention zinc plate at all.

Michael J. O'Brien
Sun Metal Finishing Inc. - Paterson, NJ


Because of its high iron content, it is a very easy SS to activate after an appropriate cleaning step.

Use the same acid that you would use on steel parts.

You may have to strike it with nickel for good adhesion. If that is not a factor, you can probably plate directly after the etch.

James Watts
- Navarre, Florida

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