1-1/4" CuNi 90/10 Pipe
- GradeCuNi 90/10, C70600, CuNi10Fe1Mn
- Nominal Size1-1/4" / DN32
- Outside DiameterCommonly 35 mm or 34.9 mm, subject to standard or drawing
- Wall ThicknessCommonly 1.2 mm - 2.5 mm, customized available
1-1/4" CuNi 90/10 Pipe is manufactured from C70600 copper nickel alloy and is suitable for seawater service in marine and offshore piping systems. It combines high corrosion resistance with good weldability and stable mechanical performance.
This size is widely used for branch seawater lines, cooling water systems, fire water connections, ballast piping and other medium-small diameter marine pipework.
| Attribute | Technical Specification |
|---|---|
| Material Grade | CuNi 90/10, C70600, CuNi10Fe1Mn |
| Nominal Size | 1-1/4" / DN32 |
| Outside Diameter | Commonly 35 mm or 34.9 mm, subject to standard or drawing |
| Wall Thickness | Commonly 1.2 mm - 2.5 mm, customized available |
| Standards | DIN 86019, DIN EN 12450, ASTM B466 / ASME SB466 |
| Manufacturing Process | Seamless cold drawn or welded type |
| Surface Treatment | Pickled, passivated and protected for sea transport |
| Testing | PMI, dimensional inspection, hydrostatic test |
| Applications | Seawater cooling, fire main, bilge, ballast and utility seawater systems |
| Certificates | EN 10204 3.1 MTC, ABS/DNV/CCS/LR/BV inspection optional |
Product advantages
Genuine CuNi 90/10 material with nickel content controlled within specification.
Suitable for long-term seawater exposure.
Smooth inner surface helps reduce flow resistance.
Compatible with CuNi elbows, tees, reducers and marine flanges.
Standard export packing for shipyard and offshore project delivery.
