Hammerhead ‘Wet-Spot’ 3.2mm Welding Electrode


The Hammerhead welding electrode is a specifically designed and formulated 'wet-spot' electrode for spot/plug welding of steels, which can be used both above and underwater. This permits a real alternative to conventional welding which requires high levels of skill to produce high quality welds.



This electrode has been specifically designed for use with the Hammerhead wet-spot welding system (see related products), it may also be used for conventional wet welding of stainless steels and/or high strength carbon steels, as it is highly resistant to hydrogen cracking and offers high strength and high toughness electrode properties.

The electrode used is a specially formulated Cr-Ni-Mo (stainless steel) electrode and is available in 3.2 mm (1/8″) diameter.

Hammerhead “Wet-Spot” 3.2mm Welding Electrodes come in 3.5kg boxes (approx 68 electrodes per box)

The Hammerhead Welding Process

The Hammerhead welding process has been specifically developed to offer a simpler alternative to conventional wet welding, particularly where very poor visibility exists. These electrodes can also be used as conventional welding electrodes for welding of high carbon and stainless steel.

In removing the skills necessary to carry out underwater wet welding you must change the fundamental approach to how welding is carried out.

The benefits are endless, with;

No need for specific joint configurations and all the preparation that goes with them.
No need even for a conventional fillet or butt joint.
No need for cleaning the joint area or for chipping off slag before laying down additional passes
No need for additional passes, as the process is a one-shot process i.e. one electrode produces one complete spot/plug weld.
No need for the diver-welder to control parameters like travel speed, electrode angles, arc length, etc, as associated with conventional welding skills.
No need to have good visibility as the diver doesn’t need to see or control an arc in the conventional sense. Even when visibility is poor high quality welds are produced time after time.
How Is All This Achieved?

By using our new control system (as seen) connected to the welding machine, this controls the welding operation. The process will penetrate the two materials required to be joined and then through the control unit the currents necessary to pierce and then fill the hole results in a spot/plug weld being formed, which has sufficiently penetrated both sets of material to form a sound joint, similar in principle to a rivet.


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