Copper Nickel Flanges
CuNi 90/10 & 70/30 flanges for shipbuilding, desalination and seawater piping connections.
Product Overview
Copper nickel flanges connect the seawater and brine piping circuits on ships, offshore platforms and desalination plant, matched to our CuNi pipe range for consistent material properties across every joint.
Weld neck and slip-on types are held in both 90/10 and 70/30 grades, machined and faced to ASME B16.5.
Copper Nickel Flanges — In Our Stockyard
Flange Types & Standards
| Type | Standard | Description |
|---|---|---|
| Weld Neck | ASME B16.5 | Seawater & brine piping connections |
| Slip On | ASME B16.5 | General shipboard & desalination piping |
Specifications
- Size Range1/2″ – 24″
- Pressure Class150# – 300#
- FacingRaised Face, Flat Face
- Material GradesC70600, C71500
- ManufactureForged, machined to ASME B16.5
- TestingDimensional, Hardness
- CertificationEN 10204 3.1 Mill Test Cert.
- PackingPalletised, bore-plugged for export
Technical Note — Flanges are matched grade-for-grade to our CuNi pipe stock to avoid galvanic mismatch at the weld joint, a common cause of accelerated corrosion in mixed-material seawater systems.
Applications
Shipbuilding
Desalination Plants
Offshore Piping
Power Plant Condenser Systems
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