Stainless Steel Tubing Solutions for Marine & Shipbuilding Industries

Precision Tubes Built to Withstand Saltwater, Corrosion, and Pressure in Harsh Marine Environments

Marine tubing is selected for compact shipboard routing and continuous exposure to salt-laden air, seawater and changing operating conditions. TeCarve supplies stainless steel tube options for cooling-water circuits, ballast systems, hydraulic lines, exhaust assemblies and offshore equipment, with grade and dimensions matched to the specified duty.

Shipyard and offshore packages also require attention to fabrication access, joining method and project documentation. Tube form, wall thickness, surface condition and inspection requirements should therefore be confirmed against the vessel specification rather than treated as a generic industrial piping order.

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Saltwater-Service Selection

Grade and surface requirements can be chosen around seawater contact, salt spray and onboard cleaning conditions.

Shipboard Routing

Tube dimensions and cut lengths can be coordinated with restricted machinery spaces and vessel layouts.

System-Specific Supply

Options can be matched to cooling, ballast, hydraulic, exhaust and offshore equipment duties.

Fabrication Fit-Up

Dimensional consistency supports bending, joining and installation during module or vessel assembly.

Maintenance Access

Surface condition and tube configuration can be specified with inspection and replacement access in mind.

Project Documentation

Material and inspection documents are confirmed against the shipyard or classification-society requirements named in the purchase specification.

Stainless Steel Tube for Marine & Shipbuilding

Need grade and standard details for welded pipe or coil tube? Read our Stainless Steel Tube for Marine & Shipbuilding: Grades, Standards, and Selection Guide.

TeCarve’s stainless steel tubing solutions are trusted across a range of onboard and offshore systems, including cooling circuits, hydraulic lines, exhaust systems, pressure vessels, and more. Each tube type is carefully matched to application-specific demands for performance, longevity, and safety.
Seawater Cooling Systems
Tube Type: Seamless / Coiled Tubes
Grades: 316L, 317L, 904L
OD Range: 6mm – 38mm
Wall Thickness: 0.7mm – 2.0mm
Common Size in mm: 12.7×1.0, 19.05×1.5
Finish: Bright Annealed / Polished
Remarks: High chloride resistance required
Ballast & Bilge Piping
Tube Type: Welded / Seamless Tubes
Grades: 316L, Duplex 2205
OD Range: 21.3mm – 76.2mm
Wall Thickness: 1.5mm – 4mm
Common Size in mm: 33.4×2.77, 48.3×3.05
Finish: Pickled / Satin
Remarks: Corrosion + high flow rate tolerance
Exhaust Gas Systems
Tube Type: Thick-Walled / Seamless Tubes
Grades: 321, 316Ti, 310S
OD Range: 25.4mm – 101.6mm
Wall Thickness: 2mm – 6mm
Common Size in mm: 60.3×3.0, 76.1×4.0
Finish: Annealed
Remarks: High temperature + vibration resistant
Offshore Oil & Gas Rigs
Tube Type: Special-Shaped / Coiled Tubes
Grades: 316L, Duplex 2507
OD Range: 6mm – 25mm
Wall Thickness: 1mm – 2.5mm
Common Size in mm: 12×1.5, 19×2
Finish: Electropolished / Custom
Remarks: Pressure tight, anti-corrosion
Marine Hydraulic Lines
Tube Type: Seamless Tubes
Grades: 316L, 321
OD Range: 6mm – 50mm
Wall Thickness: 1mm – 3mm
Common Size in mm: 10×1.5, 38×2.5
Finish: Smooth / Pickled
Remarks: High fatigue and pressure resistance
Fire Protection Piping
Tube Type: Welded Tubes
Grades: 316L
OD Range: 25mm – 76mm
Wall Thickness: 1.5mm – 2.5mm
Common Size in mm: 42.4×2.0, 63.5×2.5
Finish: Satin Polished
Remarks: Fire-safe and long-service life

Contact TeCarve

Get in touch with TeCarve for premium stainless steel tubing solutions. Global delivery, precision manufacturing, and reliable service. If any need, please send email to sales@tecarve.com.