Hi, 1G-CRO qualifies as below for pipe.(As per QW461.9) F - Pipe OD 610mm (24") OD and over F,H - Pipe OD 73mm 2-7/8") to 610mm(24") OD please find below the extraction of QW380 for your reference QW-380 SPECIAL PROCESSES QW-381 Corrosion-Resistant Weld Metal Overlay QW-381.1 Qualification Test (a) The size of test coupons, limits of base metal thicknessqualification, required examinations and tests, and test specimens shall be as specified in table QW-453. (b) Welders or welding operators who pass the tests forcorrosion-resistant weld metal overlay cladding shall only be qualified to apply corrosion-resistant weld metal overlay portion of a groove weld joining composite clad or lined materials. (c) The essential variables of QW-350 and QW-360shall apply for welders and welding operators, respectively, except there is no limit on the maximum thickness of corrosion-resistant overlay that may be applied in production. When specified as essential variables, the limitations of position and diameter qualified for groove welds shall apply to overlay welds, except the limitations on diameter qualified shall apply only to welds deposited in the circumferential direction. Thanks & Regards, (Karthik) Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Fri, 11/19/10, Shadab Alam Ansari <ansari@ghi.com.sa> wrote:
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