# Custom Parts Manufacturing for Marine

> Hardware engineered for permanent salt exposure, from deck fittings to deep-water ROV frames.

- HTML page: https://fabvector.com/industries/marine (Portuguese: https://fabvector.com/pt/industries/marine)

## Sourcing pain points we solve

Seawater is a relentless corrosion test: pick the wrong alloy pair and galvanic attack eats a fitting in one season, so material selection — 5083, 316L, phosphor bronze — is the first engineering decision, not an afterthought. Watertight housings live on O-ring groove tolerances and surface finish, where one bad groove floods the electronics it protects. Classification societies (DNV, ABS, CCS) require certified materials and documented processes on critical components. Vessel and offshore schedules are brutal: a part missing at dock means a ship that does not sail.

## Typical parts

- Watertight enclosures and connector housings
- Sonar and transducer mounts
- Deck hardware and rigging fittings
- ROV/AUV frames and thruster components
- Bronze bushings and shaft-line components

## Recommended materials

- [aluminum-5083](https://fabvector.com/md/materials/aluminum-5083)
- [stainless-steel-316l](https://fabvector.com/md/materials/stainless-steel-316l)
- [phosphor-bronze-c510](https://fabvector.com/md/materials/phosphor-bronze-c510)
- [brass-c360](https://fabvector.com/md/materials/brass-c360)

## Recommended finishes

- [anodizing-type-ii](https://fabvector.com/md/finishes/anodizing-type-ii)
- [electropolishing](https://fabvector.com/md/finishes/electropolishing)
- [passivation](https://fabvector.com/md/finishes/passivation)

## Certifications & standards

- **DNV / ABS / CCS**: We understand classification-society requirements for critical marine components, including certified materials and documented process records.
- **ISO 9001**: We understand marine buyers expect ISO 9001 process discipline with corrosion-conscious material control on every order.
- **EN 10204 3.1**: We support EN 10204 3.1 material certificates plus salt-spray test documentation where the application demands it.

_We understand and support these requirements; certification and documentation scope is confirmed per order — we do not claim to hold certifications on this page._

## Buyer questions, answered

### Which aluminum survives seawater — and which quietly does not?

5083 is the marine structural default; 6061 is acceptable coated and isolated; 7075 has no business near seawater — its copper content makes it corrode aggressively. For fittings that stay wet, 316L or phosphor bronze C510 outlast any aluminum.

### What matters when machining watertight ROV and subsea housings?

O-ring gland dimensions and surface finish decide everything: groove width and depth to the seal maker's table, Ra 0.8–1.6 µm on sealing surfaces, no tool-exit marks across the gland. We machine and inspect glands as critical features and pressure-test tooling is quoted when depth rating demands it.

### Do marine parts need classification society approval?

Only class-relevant items on classed vessels — typically pressure boundaries, steering and propulsion-line parts — and the approval attaches to the vessel programme, not the machine shop. We supply the material certs and dimensional records your class surveyor needs, and say plainly that we are not ourselves a class-approved works.