Copper Nickel Fittings are very important and the most popular material due to the good properties such as high durability and non-corrosive nature, thus making them highly durable even under tough environmental conditions. Copper-Nickel alloy exists in different types, such as C70600 and C71500. The uses of copper-nickel fittings range from marine and offshore industries to desalination plants. It comes in different types, such as elbows, tees, reducers, and stub ends, which are fabricated using standards such as ASTM B366. The fittings have a long life span in tough situations since they are resistant to corrosion, biofouling, and wear. These types of pipe fittings make up cupro nickel fittings for marine offshore applications. Metinox Overseas is an established CuNi pipe fittings manufacturer in India. We manufacture high-quality pipe fittings made of 90/10 and 70/30 copper-nickel.
Request a Copper Nickel 90/10 Pipe Fittings Quote| Specification Parameter | Details / Reference Standards |
|---|---|
| Material Specifications | ASTM B61, B62, B151, B152, B466, B467 / ASME SB61, SB62, SB151, SB152, SB466, SB467 |
| Dimension Standards | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| ASME B16.9 Requirement | Standard for Factory-Made Wrought Buttwelding Fittings |
| ASME B16.25 Requirement | Buttwelding Ends |
| ASME B16.28 Requirement | Standard for Butt-Welded Short Radius Elbows & Returns Bends |
| MSS SP-43 Requirement | Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications |
| Fittings Type | Seamless / Welded / Fabricated |
| Overall Size Range | 1/2" NB to 24" NB (DN6 ~ DN100) in Sch 10s, 40s, 80s, 160s, XXS |
| Seamless Butt Weld Size | 1/2" - 10" |
| Welded Butt Weld Size | 1/2" - 48" |
| Available Thicknesses | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom Radius |
| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
|---|---|---|---|---|---|---|---|---|---|---|
| Cu-Ni 90/10 | 0.010 max | 1.00 max | 0.08 max | 0.03 max | 2.50 max | 50.99 min* | 14.50 - 16.50 | 4.00 - 7.00 | 15.00 - 17.00 | 0.04 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
|---|---|---|---|---|---|
| 90/10 Copper Nickel | 8.89 g/cm3 | 1370°C (2500°F) | Psi - 1,15,000, MPa - 790 | Psi - 52,000, MPa - 355 | 40% |








| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| Copper Nickel 90 / 10 | 2.0872 | C70600 |
| Nominal Pipe Size (NPS) | All Fittings: O.D. at Bevel | All Fittings: I.D. at End | All Fittings: Wall Thickness | Elbows / Tees: Center-to-End (A, B, C, M) | 180° Returns: Center-to-Center (O) | 180° Returns: Back-to-Face (K) | 180° Returns: Alignment (U) | Reducers: Overall Length (H) | Caps: Overall Length (E) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 to 2-1/2 | +0.06 / -0.03 | ±0.03 | ≥ 87.5% of nominal | ±0.06 | ±0.25 | ±0.25 | ±0.03 | ±0.06 | ±0.12 |
| 3 to 3-1/2 | ±0.06 | ±0.06 | ≥ 87.5% of nominal | ±0.06 | ±0.25 | ±0.25 | ±0.03 | ±0.06 | ±0.12 |
| 4 | ±0.06 | ±0.06 | ≥ 87.5% of nominal | ±0.06 | ±0.25 | ±0.25 | ±0.03 | ±0.06 | ±0.12 |
| 5 to 8 | +0.09 / -0.06 | ±0.06 | ≥ 87.5% of nominal | ±0.06 | ±0.25 | ±0.25 | ±0.03 | ±0.06 | ±0.25 |
| 10 to 18 | +0.16 / -0.12 | ±0.12 | ≥ 87.5% of nominal | ±0.09 | ±0.38 | ±0.25 | ±0.06 | ±0.09 | ±0.25 |
| 20 to 24 | +0.25 / -0.19 | ±0.19 | ≥ 87.5% of nominal | ±0.09 | ±0.38 | ±0.25 | ±0.06 | ±0.09 | ±0.25 |
| 26 to 30 | +0.25 / -0.19 | ±0.19 | ≥ 87.5% of nominal | ±0.12 | - | - | - | ±0.19 | ±0.38 |
| 32 to 48 | +0.25 / -0.19 | ±0.19 | ≥ 87.5% of nominal | ±0.19 | - | - | - | ±0.19 | ±0.38 |
Copper Nickel 90/10 pipe fittings are piping components made from a copper-nickel alloy used to connect and direct flow in systems requiring high corrosion resistance.
UNS C70600 is a copper-nickel alloy grade known as 90/10 CuNi, widely used for its strength and resistance to seawater corrosion.
It contains approximately 90% copper and 10% nickel, with small amounts of iron and manganese for improved strength.
They are used in marine, offshore, desalination, and power plant piping systems.
Because it offers excellent resistance to seawater corrosion, biofouling, and erosion.
Yes, it has excellent corrosion resistance, especially in seawater and saline environments.
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