(no subject)

From: <Steve>
Date: Tue Apr 22 2003 - 05:05:00 EDT

Hi Tarun K Majumdar

It is unusual to weld or braze carbon steel to aluminium bronze, although it is done. I suspect you are looking at a shell and tube heat exchanger with a carbon steel shell and aluminium bronze tubes and probably tubesheet. The tubes are expanded into holes in the tubesheet by a process known as rolling. No welded joint between the steel and the bronze is necessary, but the shell will need welded nozzles, flanges and what we love to call appurtenances, which are small connections for pressure gauges and the like. The lump sum price is more useful in this case.

Cheers

Steve McK

-----Original Message-----
From: Tarun K Majumdar [mailto:tkmajumdar@punjlloyd.com] Sent: Tuesday, April 22, 2003 8:07 PM
To: <a href="/group/PipingDesign/post?postID=pevdnMMQojF99aJj5L6S_nd2VwBN3IzQNXTNWusBelgocPLEW40gfN-a77V9zJmOKG58D38o1zK5sO-kmLbhKwkZ">PipingDesign@yahoogroups.com</a> Subject: [PipingDesign]

I have gone through in a piping projectwhere in the bill of quantiyit is mentioned Carbon steel +Aluminium Bronze.Can any one of this piping forum can guide me what is the material and what type of welding consumables are to be used? Your early attention will help me a lot.

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Your use of Yahoo! Groups is subject to <a href="http://docs.yahoo.com/info/terms/">http://docs.yahoo.com/info/terms/</a> Received on Tue Apr 22 05:05:00 2003