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Dissimilar thickness plate welding

Dissimilar thickness plate welding

Postby amjadshaik7842 » Sat Nov 19, 2016 6:51 am

Dear all

I need to prepare a WPS for welding plate S355J2 to S355JR with thickness 5 mm, but I cannot find 5 mm plate for S355J2 grade. Can I proceed with dissimilar thickness like 5 mm S355JR and 6 mm S355J2? If yes, what would be the qualified thickness range? In addition please let me know if there is impact test requirement and what would be the qualification range?

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Re: Dissimilar thickness plate welding

Postby laurudolphy » Wed Nov 23, 2016 12:47 pm

Hi, the thickness for consideration would be 5 mm.
Please be informed that those materials are unlisted materials as well as the Charpy-V notch results of S355J2 are different when compared to S355JR and you may not achieve the desired results if testing below 0.
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Re: Dissimilar thickness plate welding

Postby alvaro » Sun Dec 04, 2016 9:32 am

Dear amjadshaik7842,
Please let us know the applicable code
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Re: Dissimilar thickness plate welding

Postby claudconger » Wed Jan 25, 2017 6:21 am

Generally speaking S235 will not be certified as S235J2 you would tend to see this grade certified in S235JR with a EN10204 2.2 certificate. This grade is not interchangeable with A333 GR 6 (pipe specification) or ASTM A36 (Sheet/plate & structural sections specification).

The EN equivalent of ASTM A36 would be S275JR.

S355J2+N/M is the direct EN equivalent of ASTM A572 GR 50.
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