[MW:23027] Re: requalified wps aws d1.1

my code apply is AWS D1.1 for structural steel construction

Thanks Mr Ken Waterhouse.

Vào 13:29:21 UTC+7 Thứ Bảy, ngày 23 tháng 5 năm 2015, Ken Waterhouse đã viết:

Hi Jerry, 

Can you clarify to which code or standard the WPS is written? 

Regards

KW

On Saturday, May 23, 2015 at 5:54:14 AM UTC+1, JERRY TUAN wrote:

Dear experts,

 i have one question, and I need your help. Thanks first

My WPS is SAW, qualified for tube OD = 2000mm spiral welding pipe sheet pipe.

my WPS is for splicing 2 pipe ( that mean you connecting 2 pipe together )

 the joint design is X bevel

and the layer step of welding is: 

1. GMAW at root

2. cover out side SAW

3. cover inside SAW

so now if I want to change the step welding layer to:

1. GMAW at root

2. cover inside SAW

3.cover out side SAW

 and all other parameters are not change

=>> so my question is . Do I need to requalify my WPS, OR I just rewrite WPS and keep the original PQR,no need to test PQR again

THANKS FOR YOUR HELP.

Jerry.

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