CuNi 90/10 pipes – 2.0872 CuNi pipes EN 12449
CuNi 90/10 is a copper-nickel alloy with excellent resistance to seawater and biofouling – the classic for shipbuilding and seawater piping. ROHRLINE supplies CuNi 90/10 pipes and tubes to EN 12449 and EN 12451 with EN 10204 3.1 inspection certificates – worldwide.
Application & properties
CuNi 90/10 is a copper-nickel alloy with excellent resistance to seawater and biofouling – the classic for shipbuilding and seawater piping.
- Seawater and shipbuilding piping
- Heat exchangers and condensers
- Cooling-water systems near the sea
Tell us the medium, temperature and pressure – we will check the grade with you.
Chemical composition
Typical values in wt.-% per EN standard (heat analysis).
| Element | Content (%) |
|---|---|
| Cu | Bal. |
| Ni | 9.0–11.0 |
| Fe | 1.0–2.0 |
| Mn | 0.5–1.0 |
| Pb | ≤ 0.02 |
Mechanical properties
Typical values at room temperature per EN standard.
| Property | Value |
|---|---|
| Yield strength Rp0.2 | ≥ 90 MPa |
| Tensile strength Rm | ≥ 290 MPa |
| Elongation A | ≥ 30 % |
Standards, equivalents & product forms
| Topic | Detail |
|---|---|
| Standards | EN 12449 / EN 12451 |
| ASME/ASTM equivalent | ~ UNS C70600 |
| Material no. | 2.0872 |
| Short name / aka | CuNi10Fe1Mn · CW352H |
We supply CuNi 90/10 as pipes, flanges and fittings – seamless or welded, on request with an EN 10204 3.1 / 3.2 mill certificate.
Supply programme & machining
| Item | Details |
|---|---|
| Dimensions (pipe) | Programme range: outside Ø 10.2 to 2,032 mm · DN 6 to DN 2000 · all standard wall thicknesses; available sizes depend on grade and standard |
| As flange & fitting | DN 10 to DN 1200 · PN 6 to PN 400 · Class 150 to Class 2500 to ASME B16.5 (to NPS 24), above that ASME B16.47 to Class 900 |
| Lengths & cutting | Mill lengths, sawn fixed lengths and fitting pieces from 0.1 to 12 m – sawn and bevelled |
| Minimum quantity | From a single item – from one fitting piece to the complete piping system |
| Availability | Common grades and sizes available at short notice, special sizes procured per project |
| Lead time | Standard sizes usually 3–5 working days; the binding date is confirmed with the quote |
| Machining | Sawing and bevelling, roll grooving for grooved couplings, threading to EN 10226, drilling, facing, bending with special radii |
| Surface | Blasting, coating and marking to customer specification |
| Certificates | Mill certificate 2.2, inspection certificate 3.1 to EN 10204 (standard with machining), 3.2 with notified body on request |
| Testing | Non-destructive testing by ultrasound, eddy current and X-ray, pressure test report on request |
These figures describe our supply programme. Which size is actually available in this grade is clarified with your enquiry – you usually receive the quote the same day.
We clarify availability, price and inspection certificate with your enquiry.
Frequently asked questions about CuNi 90/10
Why CuNi 90/10 for seawater?
Copper-nickel forms a stable protective layer, is highly seawater-resistant and also prevents biofouling.
Where is CuNi 90/10 used?
Above all in shipbuilding and seawater cooling circuits as well as in heat exchangers.
Which dimensions and certificates does ROHRLINE supply for CuNi 90/10?
ROHRLINE supplies CuNi 90/10 in the following range: Programme range: outside Ø 10.2 to 2,032 mm · DN 6 to DN 2000 · all standard wall thicknesses; available sizes depend on grade and standard. Documentation: Mill certificate 2.2, inspection certificate 3.1 to EN 10204 (standard with machining), 3.2 with notified body on request. Delivery worldwide; the binding date is confirmed with the quotation.
Components in CuNi 90/10 pipes
We supply these ready-to-install parts in this grade – to your drawing, tested and documented.
Typical industries
Request CuNi 90/10?
Grade, standard, size, pressure rating and quantity are enough – on request with an EN 10204 3.1 / 3.2 mill certificate. Your quote usually the same day.
All data are typical values per the relevant EN standards for first orientation – without warranty. The applicable standard and the mill certificate of the delivery are decisive.