Please share with us the corrosion report and photos for corrosion testing as well, porposed WPS and PQR as run sheet.
On Tue, Jul 18, 2023, 11:10 AM Vishwas Keskar <vvkeskar123@gmail.com> wrote:
What was the backing and shielding gas ?--Sent from my iPhoneOn 18-Jul-2023, at 10:56 AM, Ashish Chacko <iamashleo007@gmail.com> wrote:I am currently working on developing a Procedure Qualification Record (PQR) for Duplex Steel. In the process, I conducted welding using the base material SA 790 (UNS:32205) and utilized two different filler wires: ER-2594 and ER-Nicr-Mo-14 for different coupons. Size of the coupon 6" Thick:10.97 mm.
However, I encountered a concern during the corrosion testing phase, as per ASTM A923-03 standards. Both test materials failed the corrosion test. I'm seeking guidance from the experts in this group to understand the possible reasons for the failure and to explore potential solutions or alternative approaches.
If anyone has experience with similar issues or insights into the matter, I would greatly appreciate your assistance.
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