Re: [MW:30013] Welder qualification

Dear 

We can use sa194 gr 7 nut in place of sa 194 gr 4 for low temperature carbon steel line. 

Regards 

A p gupta 

Sent from Yahoo Mail on Android

On Sat, 31 Aug 2019 at 0:23, Raghul

<raghul351991@gmail.com> wrote:

Welder made two coupon

1. Coupon with 6 mm thickness on the 1/2" pipe made by gtaw process

2.coupon with 15 mm thickness on 2-7/8" pipe made by gtaw+smaw process.

Is the welder qualify to weld on 1/2" pipe with gtaw+smaw process for qualified thickness?

Please explain

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