Wednesday, April 2, 2014

[MW:20461] Re: qw 403.9

Dear Sir,

This clause refers; for single pass and multi pass with 13mm and more deposition heat input increases and so base metal thk range is 1.1 times the qualified thk and such condition happens with SAW, GMAW, FCAW, SMAW processes only.


On Tuesday, April 1, 2014 11:52:19 AM UTC+5:30, Sandeep Maan wrote:
Dear expert

Can anybody tell me the meaning of qw 403.9
 for single pass or multipass welding  in which any pass is greater than 13mm thick, an increase in base metal thickness beyond 1.1 times that of the qualification test coupon.

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