[MW:4521] RE: 4520] RE: 4518] Re: tests for checking welding quality of Duplex SS weld

ISO 5817, which gives guidelines on acceptance levels for various defects in welded joints.
EN 288 and ASME IX, which describe the approval of welding procedures.
However, duplex steels are used in applications where the strength and corrosion requirements are very severe. There is thus every reason to be extra careful from beginning to end. Welding oxide, spatter,
striking scars and grinding scars must be removed to achieve the correct corrosion resistance. For the best fatigue resistance, the weld surface must be even with no sharp edges.
Nondestructive testing is an integral part of the examination of welded joints. Suitable methods are visual inspection, penetrant testing (PT), radiographic testing (RT), ultrasound testing (UT) and ferrite content measurement (ISO 8249 and AWS A4.2) using a "ferritescope". In ultrasound testing, it is important that surfaces are ground flat so that defects such as pores and cracks can be reliably detected.

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Tran Van Vuong
Sent: Wednesday, March 10, 2010 12:33 PM
To: materials-welding@googlegroups.com
Subject: [MW:4520] RE: 4518] Re: tests for checking welding quality of Duplex SS weld

Dear,

X-ray test is preferred. EN 1435/ EN 25817, UT may be applied EN 1714/ EN
1712 (Level 2 or B)

TRAN VAN VUONG

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of hongkythai
Sent: Wednesday, March 10, 2010 1:55 PM
To: Materials & Welding
Subject: [MW:4518] Re: tests for checking welding quality of Duplex SS weld

Hi Pankaj,
You can find the European standrad is BS EN 287 and BS EN 288 for checking the welding quality of Duplex stainless steel.

Brg,

Hong Ky Thai
QUATEST3 inspector, Vietnam

On Mar 10, 1:29 pm, pankaj.jo...@in.transport.bombardier.com wrote:
> Hi,
>
> Can anybody suggest what tests must be conducted to check welding
> quality of Duplex SS.
> Is there any European standard for these tests details.
>
> BR,
>
> Pankaj Johri,   GradIEAust,

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