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BARACUDA WELDING TRIALS
CONDUCTED 2004
AS WELDED
BY
DAVID J. KEATS
FILLET WELD EXAMINATION REPORTS
CONDUCTED
BY
BODYCOTE MATERIALS TESTING
The following document details the reports/findings of various wet fillet welds, whichwere made using our Barracuda Gold underwater welding electrodes. The detailscontained have been extracted from the Hammerhead wet-spot welding Smart
report and represents typical wet weld quality, as performed by a skilled welder, onplain carbon steel to BSEN 10 025-275JR specification.
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TENSILE STRENGTH PROPERTIES
D1 SINGLE PASS WET WELD - 3.2MM ON 8.0MM PLATE
D1.1 SINGLE PASS WET WELD - (REPEATED)
D1.2 THREE PASS WET WELD - 3.2MM ON 8.0MM PLATE
D1.3 THREE PASS WET WELD - (REPEATED)
D2 THREE PASS WET WELD - 4.0MM ON 10.0MM PLATE
D2.1 THREE PASS WET WELD - (REPEATED)
D2.2 SINGLE PASS WET WELD - 4.0MM ON 10.0MM PLATE
D2.3 SINGLE PASS WET WELD - (REPEATED)
MACRO PHOTOS & HARDNESS SURVEYS
E1 SINGLE PASS WET WELD - 3.2MM ON 8.0MM PLATE
E1.1 THREE PASS WET WELD - 3.2MM ON 8.0MM PLATE
F1 THREE PASS WET WELD- 4.0MM ON 10.0MM PLATE
F1.1 SINGLE PASS WET WELD - 4.0MM ON 10.0MM PLATE
GRAPH SHOWING WELD STRENGTH PROPERTIES FOR ALL D WELDS
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Sample D1 & D1.1 - Single pass fillet weld using 3.2mm Barracuda electrodes on 8.0mmplate in H-V position.
Photo 1-2 shows joint preparation and as welded joint.
Photo 3-4 shows weld after tensile testing.
The welding parameters were set as follows.
Amps: 160-165
Volts: 28-30Polarity: DC Ve electrodeROL: 190mm/min
Arc Energy: 1.42-1.57kJ/mmS-1
These welds were subjected to tensile tests; see test report numbers S401923&S402301for further details.
NOTE: welds made under winter weather conditions, with typical air temperatures of
0-1oC recorded.
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Sample D1.2 & D1.3 - Multipass fillet weld made using 3.2mm Barracuda electrodeson 8.0mm plate in H-V position.
Photo 1-2 shows joint/preparation and as welded joint.
Photo 3-4 shows weld after tensile test.
The welding parameters were set as follows:
Root Pass (1stpass) Fill & Cap (2ndand 3rdpass)
Amps: 160-165 150-155Volts: 28-30 28-30Polarity: DC Ve electrode DC-Ve electrodeROL: 190mm/min 190-250mm/min
Arc Energy: 1.41-1.57kj/ mmS-1 1.18-1.33kj/ mmS-1
These welds were subjected to tensile tests; see test report numbers S401924&S402322for further details.
NOTE: welds made under winter weather conditions, with typical air temperatures of
0-1oC recorded.
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Sample D2 & D2.1 - Multipass fillet weld made underwater using 4.0mm Barracudaelectrodes on 10mm plate in H-V position.
Photo 1-2 shows joint/preparation and as welded joint.
Photo 3-4 shows weld after tensile testing.
The welding parameters were set as follows:
Root Pass (1stpass) Fill & Cap (2ndand 3rdpass)Amps: 190-195 180-190
Volts: 28-32 28-32Polarity: DC Ve electrode DC-Ve electrodeROL: 175m/min 190-250mm/min
Arc Energy: 1.83kj/ mmS-1 1.48-1.59kj/ mmS-1
These welds were subjected to tensile tests; see test report numbers S402302&S402303for further details.
NOTE: welds made under winter weather conditions, with typical air temperatures of
0-1oC recorded.
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Sample D2.2 & D2.3 - Single pass fillet weld using 4.0mm Barracuda electrodes on10mm plate in H-V position.
Photo shows joint/preparation and as welded joint.
Photo shows weld after tensile test.
The welding parameters were set as follows:
Amps: 190-195Volts: 28-32Polarity: DC Ve electrode
ROL: 180mm/minArc Energy: 1.64 1.77 - kJ/mmS-1
These welds were subjected to tensile tests; see test report numbers S402304&S402305for further details.
NOTE: welds made under winter weather conditions, with typical air temperatures of
0-1oC recorded.
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Sample E1, E1.1, F1 & F1.1 - Single & multipass fillet weld made using 3.2 and4.0mm Barracuda electrodes on 8.0 and 10.0mm plate in H-V position.
Shows general weld/joint preparation.
The welding parameters were set as follows:
Root Pass (1stpass) Fill & Cap (2ndand 3rdpass)3.2mm 4.0mm
Amps: 160-165 180-195Volts: 28-30 28-32Polarity: DC Ve electrode DC-Ve electrodeROL: 190-210mm/min 190-230mm/min
Arc Energy: 1.41 1.45kj/mmS-1 1.59 1.64kj/mmS-1
Welds were subjected to macro and hardness surveys; see report s S405256,
S401927, S402314, and S402315.
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