Re: [MW:12317] change in welding color in Cr Mo V steel

Hii,

Color will veries depends on Heat Input ...

But your interpretation is not a criterai for Welder
Qualification/Skill test ....There will be governing the codes as per
project requirement ...

We need to Qualify the welders as per Code/Standards ..

And the result of Weldabilty will be depends on the Inspection/Testing
...(Not with Color)

Thank you

Suresh

On 8/26/11, sedef pala <santasatana@gmail.com> wrote:
> Hi to Everybody,
>
> Attached i included two photos from welding (material Cr Mo V steel, process
> TIG ). As you can see from picture there is change in color of the
> weld.Visualy my interpretation is that welder increaed welding speed
> (therefore heat input was decreased), in copper colored area he welded more
> faster and made weld puddles more thick.Where on left side color of the weld
> pool looks good(similar to base material) and paddles are in range.
>
> My question is " if the weld puddles looks thicker and color is like
> copper can it be rejected, especially in welders skill test"?
>
> Thanks in advance for any opinion.
>
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--
Thanks & Best Regards,

Suresh

Mobile No: 91-92 92 905 905

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.