Emily Craig’s Post

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Senior Welding Engineer.

WHAT DOES IT SAY ABOUT THE WELD INDUSTRY WHEN FOR 50 PLUS YEARS IT HAS NOT BEEN USING THE CORRECT GMA WELD WIRE WITH THE WORLDS MOST UTILIZED ARC WELD PROCESS? WITH THIS POST YOU COULD ALSO SAY. LEFT WELD. THIS WELD IS MADE WITH THE MOST COMMON GMA 70S-6 WIRE UTILIZED IN N. AMERICA AND EUROPE. YET THIS WIRE WAS DEVELOPED FOR USE WITH HIGH OXIDIZING CO2. IN CONTRAST RIGHT PHOTO. THIS WOULD BE A TYPICAL WELD APPEARENCE FROM WHAT USED TO BE A LOWER COST 70S-3 GMA WIRE, A WIRE DEVELOPED OVER 50 YEARS AGO FOR USE WITH FOR ARGON MIXES. AND YET THE REALITY IS THE S3 WIRE IS NOW RARELY USED THANKS TO A COMBINATION OF GLOBAL GMA WELD ENGINEERING AND MGT. WELD PROCESS IGNORANCE AND FROM MARKETING, MANIPULATING & MISLEADING GMA WIRE MISINFORMATION ESPECIALLY FROM THE US MAJOR GMA WIRE MANUFACTURERS IN THEIR BID TO CONTROL THEIR MARKET SHARE AND PRICES. Any wire mfg. can provide a 70S-6 wire with it's silicon / manganese at its lowest level, and when used with argon mixes you will see cleaner welds. Then again for decades if you understood the GMA process you could also have used what was once the lower cost 70S-3 wire which when used with any argon mixes will guarantee you the cleanest GMA welds. By the way the mechanical properties are similar with both wires when used with the weld gas they were intended for.

Paul Smith

Senior Welding Engineer, PGDip, CEng, MWeldl, IWE/EWE

4mo

Hi Emily, I'm looking through the technical data for the Certilas wire and it's classified as a 70S-6 wire. Are we saying that the Certilas wire leaves less silicates etc... than the normal 70S-6 wire sold and could be swapped out for those currently using 70S-6 wire?? Thks

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David Helliwell

Helping Project Managers cost effectively achieve quality compliance

4mo

Brings back memories after reading your books, PPTS and watching the videos, I ordered the optimal gas for the companies material range from MOX, then I visited all the Malaysian wire manufacturers and ordered the wire, we were using it that fast I even got it without the copper coating, I think my logic was reducing fumes but can’t remember (Kiswel was the company & the guy I dealt with was Mr Nice, Korean guy) your posts spark some memories this would have been 2005-2006 ish

70s-3

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Nadeem Safdar

Welder at M-10 Builders Malaysia (Time Metal Works)

4mo

Used argen gas

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Roel Litjens

Welding Technologist bij Certilas - The Filler Metal Specialist - Welding - Offshore - Hardfacing - Construction - Food - Stainless steel

4mo

Welds on the picture are both welded with 80%Ar/20%CO2 and 70S-6 wire (4Si1)

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Michael Kwalimu

FAB TRAINER HNGI at Honibrook NGI

4mo

Interesting

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