Re: [MW:24315] Wire size 1.6mm

Dear Sir,

Thank you vey much for your explanation.

Is there any document or graph which I can use to explain to client? Maybe it would be helpful for me.

Pravin Poornachandran

Sent from my iPhone

On 17 Feb 2016, at 19:29, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:

for given current, dia 1.2 will give deposition than dia 1.6mm

THANKS & BEST REGARDS,

KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

On Wed, Feb 17, 2016 at 2:12 PM, Pravin G <htcispravin@gmail.com> wrote:

Dear Expert,

 

Greetings of the day.

 

I have a doubt on welding high strength material YP690, jack-up rig.

Currently we are using E111T1-GM H4, 80%Ar - 20%CO2, 1.2mm wire size.

 

Recently client is insisting on changing to 1.6mm wire size for higher productivity & efficiency.

However in my opinion, using 1.6mm requires usage of higher welding current 350A & above,

And not all welders are able to handle such high ampere & speed, this might cause some defects.

 

In addition, my concern is high heat input & cooling rate.

I have explained all this details to client, but client don't accept.

Pravin Poornachandran

Sent from my iPhone

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