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Welding stainless steel to mild steel

Welding stainless steel to mild steel

Welding stainless steel to mild steel

(OP)
I want to replace a 4 inch threaded thru-deck corroded steel fitting with a similar sized stainless steel NPT fitting used as an access for the emergency tiller arm on a 50ft motorized landing craft. Can a stainless steel pipe coupling be welded to a steel deck without short or long term consequences? If not what are my options? If so please specify the method.

Regards,

RE: Welding stainless steel to mild steel

You can weld it.  However painting will be very critical.
The steel deck next to the SS will be susceptible to accelerated corrosion if the surfaces are not well painted.

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Plymouth Tube

RE: Welding stainless steel to mild steel

(OP)
Thanks EdStainless. Will certainly give that area special attention.

RE: Welding stainless steel to mild steel

(OP)
Thanks strider6! Corrosion is huge in my line of work. These sites will come in handy.

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