Re: [MW:22002] Welder qualification

Hello rems

Discussing to QW-381.3 , how  chemical composition affects on welder qualification....what if we write the chemical composition in the WPS and qualify welder by following this clause...

This clause is not having clarity..
can you do us a favour by giving little more clarification on this....

Regards
Mahendra arya

On 26-Sep-2014 11:04 pm, "Rems Okonkwo" <rems.okonkwo@gmail.com> wrote:

Dear Mohit,

 

Although your query lack all necessary information like the applicable code, the type of consumable, materials etc but on a general note, welders qualified for clad restoration are not qualified to weld butt joints but when a welder is qualified on butt weld, the weld is qualified to weld clad restoration if only

 

1. requirement for Chemical composition.

 

2. within the F number of the consumable qualified,

 

3. within the welding position qualified

 

Please refer to ASME IX Art III (See Below)

 

QW-381.3 Alternative Qualification With Groove

Weld Tests.

When a chemical composition is not specified

in the WPS, welders or welding operators who successfully

complete a groove weld performance qualification

test meeting the corrosion

‐resistant overlay bend test requirements

of

QW-163 may be considered qualified for

corrosion

‐resistant overlay welding within the ranges defined

in

QW-350 or QW-360.

Regards,

 

Rems Okonkwo

IWE Nigeria

On Thu, Sep 25, 2014 at 3:43 PM, Mohit Aggarwal <aggarwalmohit05@gmail.com> wrote:

Dear Experts,

I have query regarding welder that if a welder is qualified for clad restoration overlay then he will be qualified to weld in groove joint or not.

If a welder is qualified for groove welding,then he will be qualified for clad restoration overlay or not.

Thanks!!

Best Regards,
Mohit Aggarwal.

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