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:
--MD SAIDUR RAHMANRegards,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.
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