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Everdur

Big Stick - Monday, February 16, 2009 - 1:42pm
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Looking for an off the shelf procedure for joining Everdure brass material to its self.
ASME Section VIII vessel with 0.375" to 0.750" plate shells.
Wish to do full and partial penetration joint repairs to existing units built pre 1941.
Require notes and any special requirements for preheating of, welding of, cooling down of and subsequent NDE of.
Any special cirteria that needs to be addressed.


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Rich Waugh's picture

CHeck the ASME and AWS

Rich Waugh - Monday, February 16, 2009 - 8:43pm

CHeck the ASME and AWS guidelines for TIG welding of copper alloys.


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Ries's picture

Everdur is a brand name for

Ries - Monday, February 16, 2009 - 11:55pm

Everdur is a brand name for silicon bronze.
But that old, I would wonder if its exactly the same alloy as today.

I weld it pretty often, using a silicon bronze filler rod, and the tig process.
But 3/8" is pretty thick for this- It would require at least 300 amps, I would think, and 3/4" bronze is really going to eat up the amps. I do not pre or post heat, but my applications are mostly decorative and ornamental.

It can be mig welded, and there is filler wire available.

are these pressure vessels, or other situations where a bad weld could be life threatening? If so, I would be hiring a professional welding engineer as a consultant.


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visitor's picture

Everdur

visitor - Thursday, March 12, 2009 - 2:41pm

These are pressure vessels used in the food industry.


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Stephen Fitz-Gerald's picture

Evedur

Stephen Fitz-Gerald - Saturday, October 10, 2009 - 12:23pm

Stephen Fitz-Gerald
I've never heard Evedur referred to as anything but BRONZE (not brass). But there are silicon bronze stick rods for arc welding available somewhere...though I know not where.But that would be messy and you say this is for FOOD? What kind of food uses a bronze pressure tank? Wine?
You could also do it with the MIG running silicon bronze wire,if you didn't care too much about a discoloration of the seams. But if it's just a patch job on tiny holes then the TIG is the way to go,though that's going to be a challenge with so much heat dissipation from such thick material.


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