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Industries · Marine

Welding solutions for vessels that live in seawater

Seawater gets into everything on a ship. Pumps cavitate, condenser tubes thin from the inside, and machinery that runs hot one watch and cold the next cracks where dissimilar metals meet. Repairs happen at sea or alongside, with the part still in the vessel. Pick an area of the ship to see which components fail, how, and what we would put on them.

Cutaway view of a bulk carrier — the hull opened along its length to show the engine room with its main engine and generators, the pump room, and the heat exchanger and piping space aft of it.
Vessel machinery spaces 6 components mapped Click a numbered pin on the vessel
6
Components mapped
3
Areas aboard
500+
Authorised distributors

Vessel map

Click any area — the photo above and the table below both update

6 components mapped  ·  3 areas aboard Click an area to narrow
Component Base metal Wear factor Area Recommended solution
Engine Blocks Cast Iron Impact Engine Room Cast iron electrodes
Water Pump Housing Cast Iron Erosion/Corrosion Engine Room Cast iron electrodes
Pump Impellers Steel/Bronze Corrosion/Abrasion Pumps & Valves Copper alloy electrodes
Valve Seat Stainless Steel Heat/Impact Pumps & Valves Nickel & Inconel grades
Condenser Pipes Cu Nickel Alloys Corrosion Heat Exchange & Piping Copper alloy electrodes
Heat Exchange Tubes Nickel Alloys Corrosion Heat Exchange & Piping Nickel & Inconel grades

Water Pump Housing

Engine Room
Base metal Cast Iron
Wear factor Erosion/Corrosion
Cast iron electrodes

Heat Exchange Tubes

Heat Exchange & Piping
Base metal Nickel Alloys
Wear factor Corrosion
Nickel & Inconel grades
Showing 6 of 6 components Grade-level recommendation issued after component inspection
How marine components fail

Seawater corrosion

Chlorides pitting condenser tubes, tube plates and pump housings, with crevice attack at every flange and joint.

Cavitation & erosion

Impellers, wear rings and casings hollowed out where the water flashes to vapour and collapses against the metal.

Thermal cycling & fatigue

Blocks, heads and exhaust parts cracking where they heat and cool again through every watch and every port call.

Dissimilar metals

Bronze to steel, stainless to carbon steel — joints made on board, and the galvanic cells salt water sets up across them.

Send us the component.
We’ll send the procedure.

Base metal, wear factor and a photograph of the part — an application engineer comes back with the consumable, the parameters and a procedure your crew can run alongside.