- Excellent resistance to pitting corrosion
- Excellent resistance to stress corrosion cracking (SCC) in chloride containing environments
- High resistance to general corrosion in acidic environments
- Excellent resistance to erosion corrosion
- Extremely high mechanical strength
On Monday, November 7, 2016 at 10:00:33 AM UTC+5:30, pgoswami wrote:
Hi Pankaj,
What's the rationale behind selecting 2707 HD filler for 2507 filler metal, knowing the facts that in almost 100% of the cases, matching 2507 filler would meet or exceed the design requirements of 2507 base metals. What 's the reactor involved including the design requirements ? These would be the guiding factors for selecting matching or superior grades of welding consumables.
Your responses would be appreciated.
Thanks.
Pradip Goswami, P.Eng,IWE
Welding & Metallurgical Engineering Specialist ,
Ontario,Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299
From: material...@
googlegroups.com [mailto:material...@googlegroups.com ] On Behalf Of pankaj phuse
Sent: Sunday, November 06, 2016 10:53 PM
To: Materials & Welding
Subject: [MW:25657] Welding on Superduplex material by hyperduplex filler wires
Dear Expert,
As precautionary measure we have selected Hyper Duplex 2707 as welding material for the reactor. In principle 2707 HD is considered as a grade higher than 2507 as far as PREN is concerned, owing to which we brought it into the picture.
We wish to know your feedback on the quality of welding attained with this combination and corrosion resistance of weld joints as it goes through heat transition during welding.
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