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INTRODUCE

QUALITY

UNDERWATER WELDING ELECTRODES

FOR

WELDING MADE SIMPLE

eeting the demands of quality and performance


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CONTENTS: 1

WHY CHOOSE BARRACUDA GOLD ELECTRODES 2

PERFORMANCE CHARACTERISTIC 2

TECHNICAL SUPPORT 2

BUTT WELD WPS FOR NOORDHOEK OFFSHORE & ONGC 3

GENERAL VIEW OF WELDED TEST PLATE 4

WELDING PROCEDURE SPECIFICATION (LLOYDS APPROVED) 5/6

STORK LABORATORY TEST REPORTS 7/14

FILLET WELD WPS FOR DIVE TECHNOLOGIES ON BEHALF OF DML 15

GENERAL VIEW OF WELDED PLATES 16/17

THE TEST HOUSE LABORATORY REPORTS 18/27

BUTT WELD WPS FOR MOS & CORE TECHNICAL SERVICES 28

GENERAL VIEW OF WELDED TEST PLATE 29ETRS LAB PHOTO OF TEST PLATE SAMPLE 30/31WELDING PROCEDURE SPECIFICATION (ABS APPROVED) 32/33AMERICAN BUREAU OF SHIPPING SURVEY REPORTS 34/35ETRS LABORATORY TEST REPORTS 36/43


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WHY CHOOSE BARRACUDA GOLD ELECTRODES:

The Barracuda Gold underwater welding electrode has been designed and formulated toproduce the highest quality weld-metal possible, offering excellent ductility, toughness andstrength properties. The electrode, which has added nickel, offers significant improvements

in mechanical/metallurgical properties to standard C/Mn (mild-steel) electrodes. Theelectrodes are manufactured under strict quality control methods and procedures (ISO 9000)to ensure the highest, repeatable quality at all times. For an electrode to produce highquality welds underwater, attention to the waterproofing is of paramount importance toensure moisture is prevented from penetrating the flux coating, while at the same time,allowing the electrode to burn fry without undue interference to the arc, or allowingcontamination to transferred to weld-metal. The Barracuda Gold electrode is guaranteed notto flake, blister even under the harshest of environments and it also offers the maximumelectrical protection for the diver. Electrodes may be submerged up to a 90 minute periodwithout any undue interference or loss of performance, although we always recommend

electrodes should be used within a 30-45 minute period, where possible.

Although no standard/specification exists for underwater welding electrodes, the nearestequivalent may be taken from BSEN ISO 499: 1995 for covered welding electrodes. Thenearest code being E4221NiRR (AWS E7014). Barracuda Gold electrodes exceed thespecification criteria as stated under BSEN ISO 15618-1:2002 and AWS D3.6M-99 forunderwater class B welds.

PERFORMANCE CHARACTERISTIC:

The electrode is designed to be used in allpositions, using touch welding techniques andoffers a friendly, soft, controllable arccharacteristic, making welding very easy forboth experienced and inexperienced divers alike.The electrode also has a graphite tip for easystriking. For more detailed information andadditional technical/operations features, seeseparate data sheet.

(What a difference a good electrode can make in the right hands).

TECHNICAL SUPPORT:

Customers of Speciality Welds can be assured of access to unlimitedtechnical support from one of the worldsleading experts; including,

Development of formal welding proceduresQualification of welder-diversOnsite/telephone technical assistanceProject management / consultancy

We can also offer a number of publications tohelp improve your understanding of the subject of underwater welding; titles include; TheProfessional Divers Manual on Wet Welding and A Welders Mate.


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BARRACUDA WELDING TRIALS

BUTT (GROOVE) WELD SAMPLES

CONDUCTED JULY 2004

FOR

NOORDHOEK OFFSHORE LIMITED

ON BEHALF

OF

ONGC

AS WELDED

BY

DAVID J. KEATS


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GENERAL VIEW OF WELDED TEST PLATE FOR NOORDHOEK OFFSHORE

CLOSE UP ON PLATE SECTIONS

Test Plates Details

Plates: Carbon Steel S355J2G3 & S235JRG2 (BSEN 10025-1) 350 x 25mmElectrodes: Barracuda GoldJoints: Single V butt welds with backing stripPositions: Vertical-down (3G) and Flat (1G) (weld shown is vertical-down single V butt weld)

Visibility: PoorLocation: Freshwater test tankClient: Noordhoek OffshoreProject: Offshore platform repair Bombay HighDate: July 2004

Welder: David J. Keats


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BARRACUDA WELDING TRIALS

FILLET WELD SAMPLES

CONDUCTED OCTOBER 2006

FOR

DIVE TECHNOLOGIES LIMITED

ON BEHALF

OF

DEVENOPORT MANAGMENT LIMITED

FOR

MINISTRY OF DEFENCE

AS WELDED

BY

DAVID J. KEATS


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GENERAL VIEW OF FILLET WELD TEST PLATES

VERTICAL DOWN - 2 PASS WELD

OVERHEAD - 3 PASS WELD


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GENERAL VIEW OF SHEAR WELD TEST PLATES

VERTICAL DOWN - 2 PASS WELD

OVERHEAD - 3 PASS WELD


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