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[MW:22086] Filler material range as per EN15614-1

By Materials & Welding

Dear Friends,

I have a Pqr made with ER70S-2 Gtaw wire. I want to produce Wps which will be welded with ER70S-6 wire. Is it possible to prepare wps which will be welded with ER70S-6? Application code is EN15614-1.  

As per EN15614-1, 8.4.4 ‘Filler materials cover other filler materials as long as they have equivalent mechanical properties, same type of covering core or flux, same nominal composition’

There are minor differences in chemical compositions but can we consider they have same chemical composition, what is limit for to consider as they are same in chemical composition.


Bohler

C

Si

Mn

ER70S-2

0.05

0.5

1.2

ER70S-6

0.1

0.9

1.4

 

Even in different producer there are differences in chemical composition.

 

C

Si

Mn

Bohler ER70S-2

0.05

0.5

1.2

Lincoln ER70S-2

0.04

0.55

1.08

 

Can anyone advice about issue.

Thanks in advance,

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