Re: [MW:3868] Clarification on range of qualification as per AWS D1.1

On Mon, Dec 21, 2009 at 2:32 PM, Sankepalli R.S.Reddy <sankepalli.rsreddy@gmail.com> wrote:

Dear Members,

 

I have a query related to welder qualification for TKY joints as per Table 4.11 and Fig 4.27 - AWS D1.1

 

1. Can we use a pipe with thickness less than 12mm or 0.5" during welder qualification. What is the minimum thickness allowed per code.

 (Since the specified thickness is nominal, may i use a pipe with thickness less upto 12.5% - Material SA 106 GrB)

(Look at the figure 4.27 , minimum wall thickness is 12 mm)  

 

2. If welder is qualified in Group 1, can he weld Group 2 & 3

(AWS Group is not essential variable , so if u qualify the group I, will qualify the all groups)

.

 

 

 

Thanks and regards

 

S. Rama subba reddy

Offshore/Onshore Inspection group

Saudi Aramco

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Thanks & regards,

K.Babu
Singapore

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