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[MW:26816] welder qualification API 1104

By Materials & Welding

Dear 


find the welder qualification Requirements as follows



 Welding Procedure and Welder Qualification coupon SET-UP:

Inline image 1

 

Welder Qualification:

 

A welder qualified on pipe having an OD of greater than or equal to 12.750 in. (323.9 mm) should be qualified for all pipe diameters. A welder who has an existing Unlimited Thickness qualification to ASME-IX and an in-service qualification as per Fig. above to the 2 pipe thickness as stated in the table below, should be qualified as an in-service branch or sleeve welder for Horizontal Pipe positions, all diameters, and all wall thicknesses.

 

Hot Tap Welder Performance Coupon Requirement for Qualifying 2 Welders

ITEM DESCRIPTION

CARRIER PIPE

SPLIT SLEEVE

T upon 19.1mm

12" SCH 40 (10.3mm) X  600mm LONG

14" SCH – XS (12.07mm) X 200mm LONG

T > 19.1mm 

14" SCH – 100 (23.83mm) X 200mm LONG

 

Note:If the welders Qualified on thickness more than 19.1mm, will qualified to weld unlimited thickness can be Utilized for future projects  

Welder Qualification 

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