Steel renewal & structural repair
When gauging or damage shows that steel has to go, we crop it out and renew it — shell, deck, bulkheads, frames, longitudinals and brackets — so the structure is back to its original strength and class can close the item.
- Typical items
- Shell · deck · bulkheads · internals
- Steel grades
- Mild and high-tensile (AH · DH · EH)
- Where
- Drydock · alongside · underway
- ANew insert · bevelled edges
- BWeld all round
- CFrames behind the opening
What we do
01 / 05- 01Cropping and renewal of shell, deck and bulkhead plating
- 02Insert plates with radiused corners and prepared bevels
- 03Renewal of frames, longitudinals, brackets and stiffeners
- 04Doublers and temporary repairs agreed with class
- 05Fairing of set-in plating and buckled panels
- 06Hatch coamings, covers and deck fittings
- 07Prefabrication of parts to drawing
Hopper plating in way of the cargo hold — one of the members most often renewed on bulk carriers.
How we work
02 / 05- 01
Measure and mark
Gauging and inspection define the extent; cut lines are marked on the plate and agreed with the surveyor.
- 02
Prepare
Gas-free and hot-work permits, staging, material certificates and the welding procedure for the steel grade.
- 03
Crop and fit
The old plate comes out, edges are bevelled, and the insert is fitted with the right root gap and in line with the structure behind.
- 04
Weld and test
Welding in a sequence that controls distortion, then visual inspection and NDT of butts and seams.
- 05
Close out
Coating restored, records and photos handed over, the item closed with class.
What you receive
03 / 05- Class society rules for hull repairs
- IACS Recommendation 47 — repair quality standard
- IACS UR S31 — side frames of bulk carriers
- ISO 15614-1 · AWS D1.1 — welding procedures
Questions
04 / 05Q.01Can steel be renewed without drydocking?
Often, yes. Plating above the waterline and internal structure can be renewed alongside or during the voyage, once the space is gas-free and the hot work is approved by the ship, the terminal and class.
Q.02Insert or doubler?
An insert restores the original structure and is the permanent repair class expects for wasted or cracked plating. Doublers are usually accepted only as temporary repairs, for a period agreed with the surveyor.
Q.03Who supplies the steel?
We can supply certified plate and profiles of the required grade, or work with material provided by the owner — always with its mill certificates.
Request a repair.
Tell us the ship, the port and the job. We reply with questions, a plan or a quote.