Cavitation, erosion, and corrosion repair

Weld Overlay

Hydro weld overlay, build-up, crack repair, and finish work for worn hydraulic and structural surfaces.

HRS welders performing overlay work as a crew.

For hydro plant teams

Where this fits.

For utility maintenance teams who need damaged surfaces restored with field discipline, weld control, and documentation that can stand up to owner review.

Failure modes

Cavitation loss on flow surfaces
Corrosion or erosion thinning
Cracks requiring controlled repair
Worn seats, edges, liners, or transition areas

Field methods

Surface preparation and defect removal
Weld build-up, overlay, and controlled repair passes
Grinding, blending, and profile restoration
Preheat, interpass, filler, and inspection controls as required

Documentation

Repair-area photos and weld notes
NDE coordination records when required
Material/method summary for the final report
Open risks and future monitoring recommendations

Call HRS when

Cavitation or corrosion has removed working surface
A field weld repair needs more control than a quick patch
The owner needs documentation for acceptance
The repair scope includes both welding and finish restoration

Proof points

Documentation your outage team can use.

SMAW, FCAW, and GTAW capability when matched to the repair

Cavitation, erosion, corrosion, and crack repair support

Coordination with NDE and owner hold points

Repair reporting for QA and future outage planning

Next step

Need this scoped for an outage?

Send the asset, symptoms, outage window, photos available, and any QA or owner documentation requirements.

Start a conversation