High Quality Copper Nickel Buttweld Pipe Fittings
90/10 • Strength • Sealing • Durability
Get a QuotePremium Copper Nickel 90/10 Buttweld Pipe Fittings by Ratnadeep Steel & Engg. Co.
Ratnadeep Steel & Engg. Co. is a reputed manufacturer, exporter, and supplier of Copper Nickel 90/10 Buttweld Pipe Fittings, offering excellent corrosion resistance and cost-effective performance in seawater and brackish water systems. Copper Nickel 90/10, with 90% copper and 10% nickel, provides superior resistance to biofouling and stress corrosion.
Copper Nickel 90/10 Buttweld Pipe Fittings deliver reliable mechanical properties, good ductility, and ease of fabrication. These fittings perform efficiently under moderate temperatures and pressures while maintaining excellent weldability and long-term corrosion resistance. Accurate beveling and smooth internal surfaces support efficient fluid flow and secure weld integrity.
Commonly applied in seawater piping, condenser systems, shipbuilding, offshore structures, fire water lines, and heat exchangers, our Copper Nickel 90/10 buttweld fittings meet stringent international standards. Rely on Ratnadeep Steel & Engg. Co. for high-quality copper nickel fittings that ensure efficiency, durability, and operational safety.
- Copper Nickel 90/10 90 Deg Elbow
- Cu-Ni 90/10 45 Deg Elbow
- UNS C70600 180 Deg Elbow
- DIN 2.0872 SR Elbow
- B16.9 CuNi 90-10 90 Degree Short Radius Elbow
- 90/10 Cupro Nickel 45 Deg Long Radius Elbow
- ASME B16.9 Copper Nickel 90/10 Equal Tee
- UNS C70600 Pipe Tee
- Cu-Ni 90/10 Butt weld Tee
- ASME SB122 CuNi 90/10 Reducing Tee manufacturer
- DIN 2.0872 Unequal Tee
- Cupro Nickel 90/10 Straight Tee
- ASTM B122 Copper Nickel 90/10 Eccentric Reducer Supplier
- B16.9 Cupro Nickel 90/10 Eccentric Reducer
- Cu-Ni Alloy UNS C70600 Eccentric Reducers
- DIN 2.0872 Eccentric Reducer
- ANSI B16.9 Copper Nickel 90/10 Concentric Reducer Supplier
- ASME SB122 Cupro Nickel 90/10 Concentric Reducer
- Cu-Ni C70600 Concentric Reducers
- CuNi DIN 2.0872 Concentric Reducer
- ANSI / ASME B16.9 Copper Nickel 90/10 Long Stub End Supplier
- ASTM B122 / ASME SB 122 Cu-Ni 90/10 Lap Joint Stub End
- Cupro Nickel C70600 Long Stub Ends
- DIN 2.0872 Long Stub End
- ASTM B122 Copper Nickel 90/10 Short Stub End Supplier
- 90/10 Cupro Nickel ASME B16.9 Short Stub Ends
- CuNi Alloy UNS C70600 Short Stub Ends Exporter
- DIN 2.0872 Short Stub End
- ASTM B122 Copper Nickel 90/10 Pipe Cap Supplier
- ASME B16.9 Cupro Nickel 90/10 End Pipe Cap
- Copper UNS C70600 Pipe End Cap
- ASME SB122 Cuni 90/10 Buttweld Cap
- DIN 2.0872 End Cap
- ASTM B122 Copper Nickel 90/10 Equal Cross
- ASME B16.9 Cu-Ni 90/10 Buttweld Cross
- CuNi C70600 Unequal Cross
- ASME SB122 Cupro Nickel 90/10 Pipe Cross
- DIN 2.0872 Reducing Cross
- ASME SB 122 Cupro Nickel 90/10 Pipe Bend Exporter
- B16.9 Cu-Ni 90/10 Piggable Bend
- CuNi C70600 U Bend
- DIN 2.0872 Long Radius Bend
- 90/10 Copper Nickel Buttweld Bend Supplier
CHEMICAL COMPOSITION OF COPPER NICKEL 90/10 SEAMLESS AND WELDED PIPE FITTINGS
| Element | Cu | Ni | Fe | Mn | Zn | Pb | Other |
|---|---|---|---|---|---|---|---|
| Copper Nickel 90/10 | 88.6 min | 9-11 | 1.0-1.8 | 1.0 max | 1.0 max | 0.05 max | 0.5 max |
MECHANICAL PROPERTIES OF ASME SB122 COPPER NICKEL 90/10 BUTTWELD PIPE FITTINGS
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength, Ultimate | 303-414 MPa | 43900-60000 psi |
| Tensile Strength, Yield | 110-393 MPa | 16000-57000 psi |
| Elongation at Break (in 254 mm) | 42.00% | 42.00% |
| Machinability (UNS C36000 = 100%) | 20% | 20% |
| Shear Modulus | 52.0 GPa | 7540 ksi |
| Poisson’s Ratio | 0.34 | 0.34 |
| Elastic Modulus | 140 GPa | 20300 ksi |
Specification of Copper Nickel 90/10 Buttweld Fittings
| Specifications | ASTM B122, B171, B466, B467 |
|---|---|
| Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size | Seamless Butt Weld Fittings: ½” to 10″ | Welded Butt Weld Fittings: ½” to 48″ |
| Schedule | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Type | Seamless / ERW / Welded / Fabricated |
| Thickness | 20 Swg., 18 Swg., 16 Swg., 14 Swg., 12 Swg., 10 Swg., & Sch. 10, Sch. 40, Sch. 80 etc. |
COPPER NICKEL 90/10 ASTM B122 BUTTWELD FITTINGS EQUIVALENT GRADES
| STANDARD | UNS | WNR. | EN | DIN | JIS | BS |
|---|---|---|---|---|---|---|
| Copper Nickel 90/10 | C70600 | 2.0872 | CuNi10Fe1Mn | CuNi10Fe | C7060 | CN 102 |
PHYSICAL PROPERTIES OF ASTM B171 CU-NI 90/10 PIPE FITTINGS
| Property | Metric | Imperial |
|---|---|---|
| Density | 8.94 g/cm³ | 0.323 lb/in³ |
| Melting Point | 1100°C | 2012°F |
| Specific Heat @ 20°C (68°F) | 0.377 J/g·°C | 0.090 Btu/lb·°F |
| Thermal Conductivity @ 20°C (68°F) | 40 W/m·K | 277 Btu·in/h·ft²·°F |
| Electrical Resistivity @ 20°C (68°F) | 0.027 μΩ·m | 0.027 μΩ·m |
| Mean Coefficient of Thermal Expansion (20-100°C) | 17.1 × 10⁻⁶ /°C | 9.5 × 10⁻⁶ /°F |
| Magnetic Permeability | Non-magnetic | Non-magnetic |
💡 Practical Difference in Use
Use Copper Nickel 90/10 Buttweld Pipe Fittings when: reliable corrosion resistance is required in moderate seawater and brackish water environments with cost-effective performance. This alloy offers excellent resistance to biofouling and stress corrosion. → Example: seawater piping, fire water systems, shipbuilding, and heat exchanger lines.
Applications of Copper Nickel 90/10 Buttweld Pipe Fittings
Copper Nickel 90/10 fittings provide dependable service in marine and industrial water systems.
- Seawater Systems: Cooling water and fire protection pipelines.
- Shipbuilding: Onboard piping and auxiliary systems.
- Heat Exchangers: Condenser and cooling applications.
When to Choose Copper Nickel 90/10?
This grade is suitable for applications requiring good corrosion resistance at a lower cost.
Choose Copper Nickel 90/10 when:
- Moderate seawater exposure is expected
- Resistance to biofouling is important
- Cost efficiency is a key consideration
- Good weldability and formability are required
- Used in marine or industrial water systems
Industries That Use Copper Nickel 90/10 Buttweld Pipe Fittings
Copper Nickel 90/10 fittings are commonly used in cost-sensitive marine applications.
Ideal for onboard piping.
Uses
Cooling water and fire water lines.
Why Copper Nickel 90/10?
Good seawater corrosion resistance at lower cost.
Supports water handling systems.
Uses
Condensers and cooling circuits.
Why Copper Nickel 90/10?
Reliable performance and ease of fabrication.
Used in non-critical marine exposure.
Uses
Brackish water and utility pipelines.
Why Copper Nickel 90/10?
Resistance to fouling and corrosion.
Usage Guide for Copper Nickel 90/10 Buttweld Pipe Fittings
Directional flow change in moderate seawater and brackish water systems.
Choose Elbow when
- Direction change is required
- Moderate seawater exposure exists
- Good corrosion resistance is needed
- Used in marine utility piping
Branch connections in cost-effective marine systems.
Choose Tee when
- Fluid distribution is required
- Used in seawater cooling lines
- Ease of fabrication is important
- Marine fire water systems
Prevents air locking in horizontal marine pipelines.
Choose Eccentric Reducer when
- Installed on pump suction lines
- Handling seawater or brackish water
- Flow consistency is required
- Used in utility piping
Uniform transition in vertical water pipelines.
Choose Concentric Reducer when
- Vertical installation is required
- Uniform pressure distribution is needed
- Used in cooling water systems
- Marine auxiliary piping
Easy dismantling for maintenance-friendly marine joints.
Choose Long Stub End when
- Regular maintenance is expected
- Lap joint flanges are used
- Moderate pressure pipelines
- Shipbuilding applications
Compact lap joint solution for utility marine systems.
Choose Short Stub End when
- Space-saving installation is required
- Cost optimization is important
- Low to moderate pressure systems
- Marine auxiliary piping
Seals pipe ends in marine and industrial water lines.
Choose Pipe Cap when
- Pipe termination is needed
- Temporary or permanent sealing
- Moderate corrosion resistance is required
- Used in marine utilities
Multi-directional distribution in utility piping.
Choose Cross when
- Four-way connections are required
- Used in marine service lines
- Moderate pressure operation
- Cost-effective branching
Gradual directional changes in seawater pipelines.
Choose Pipe Bend when
- Reduced turbulence is needed
- Marine cooling systems
- Lower erosion risk
- Long service life
Our Buttweld Pipe Fittings are manufactured using advanced processes and undergo extensive quality checks to ensure flawless weldability, durability, and long service life. Each fitting is thoroughly inspected using key NDT techniques such as radiographic testing (RT), ultrasonic testing (UT), hydrostatic testing, and visual/dimensional examination. We also perform detailed chemical composition analysis and mechanical property testing to ensure material compliance with strict industry standards.
Throughout the forming and welding stages, every buttweld fitting is monitored closely to eliminate defects such as misalignment, surface irregularities, and wall-thickness variations. This ensures perfect joint integrity and high-performance reliability in pipelines carrying high temperatures, pressures, and corrosive media. All our buttweld fittings fully comply with ASME, ASTM, MSS-SP, and related global specifications, making them a preferred choice for critical piping systems worldwide.
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