Re: [MW:24526] Cut-out of 30"OD API-5L-X60 PSL-II CWC pipe

Dear Sir,

As per API 1104.

10.2 Authorization for Repair

10.2.1 Company Authorization

Company authorization is required for crack repairs, back weld repairs, and double repairs and as otherwise noted in

10.2. Company authorization is not required for any repairs that do not involve the application of heat or weld metal,

such as grinding, filing, etc.

10.2.2 Crack Repairs

Cracked welds shall be cut out unless permitted by 9.3.10 or when the repair is authorized by the company. When a

crack repair is authorized:

a) a cracked butt weld or branch weld may be repaired by complete or partial removal of the weld provided the length

of a single crack or aggregate length of more than one crack in a single repair area is less than 8 % of the weld

length using a qualified repair procedure;

b) a cracked fillet weld may be repaired by complete or partial removal of the fillet weld using a qualified repair

procedure;

c) a butt weld or branch weld that contains multiple repair areas with crack(s) may not be repaired unless the total

accumulated repair length is less than 8 % of the weld length and a qualified repair procedure is used;

d) a double repair of a crack is not permitted. Additional cracking in any weld after repair shall require a cut out;

e) shallow crater cracks or star cracks found and contained completely in internal or external weld reinforcement may

be repaired by grinding (i.e. abrasive methods) without a qualified repair procedure. If the grinding exceeds the

internal or external reinforcement, the reinforcement shall be replaced using a qualified weld procedure.

Regards,

Muhammad Babur Khan Lashari
Sr. QA/QC Inspector

(CSWIP 3.1 / CWI II From PWI) 

 Khaled Juffli Industial Company

Mob: + 966 56 2179280 / 58 2774568

PAK : + 92 334 6186285

Skype: babur.lashari

E-Mail: babur.khan@kjgroup.com

On Mon, Mar 14, 2016 at 1:58 PM, Saidur Rahman <saidur04cuet@gmail.com> wrote:

Dear Experts,

In a cross-country pipeline project I found crack in the RT film. The length of the crack is about 100mm. My colleagues (QC) told me to CUT-OUT the joint. Is it mandatory to cut-out a weld after finding crack regardless the length of the crack as per API 1104? I do not find the term cut-out in any type of codes and standards. Is re-weld means cut-out? In my project applicable standard is API 1104.

Regards,

MD SAIDUR RAHMAN

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