Premium Copper Nickel 70/30 Forged Pipe Fittings by Ratnadeep Steel & Engg. Co.
Ratnadeep Steel & Engg. Co. is a trusted manufacturer, exporter, and supplier of Copper Nickel 70/30 Forged Pipe Fittings, designed for superior performance in harsh marine and seawater environments. Copper Nickel 70/30, with higher nickel and iron content, offers exceptional resistance to seawater corrosion, erosion, and biofouling.
Copper Nickel 70/30 Forged Pipe Fittings are known for their high mechanical strength, excellent thermal stability, and long service life in high-velocity seawater systems. These fittings exhibit excellent weldability and retain corrosion resistance even in polluted or turbulent marine conditions. Precision forging ensures tight dimensional tolerances, leak-proof joints, and reliable performance.
Extensively used in marine engineering, offshore platforms, shipbuilding, desalination plants, power generation, and heat exchangers, our Copper Nickel 70/30 forged fittings conform to international quality standards. Rely on Ratnadeep Steel & Engg. Co. for durable and corrosion-resistant forged fittings for demanding marine applications.
- Cupro Nickel 70/30 Socket Weld Elbow
- UNS C71500 Threaded Elbow
- DIN 2.0882 Forged Elbow
- ASME SB467 45° Threaded Elbow
- Cupro Nickel 70/30 90° Forged Elbow
- ASME SB467 Socket Weld Tee
- ASTM B467 Forged Equal Tee
- DIN 2.0882 Reducing Tee
- UNS C71500 Unequal Tee
- Cu-Ni Alloy 70/30 Threaded Equal Tee
- ASTM B467 Threaded Equal Cross
- UNS C71500 / DIN 2.0882 Forged Cross
- ASME SB467 Cu-Ni Alloy Socketweld Equal Cross
- Cupro Nickel 70/30 Threaded Cross
- Cupro Nickel 70/30 Reducing Cross
- DIN 2.0882 Threaded Full Coupling
- UNS C71500 Forged Full Coupling
- ASME SB467 Socketweld Full Coupling
- ASTM B467 Full Coupling
- ASTM B467 Socket Weld Half Coupling
- UNS C71500 Forged Half Coupling
- ANSI B16.11 Threaded Half Coupling
- UNS C71500 Forged Pipe End Cap
- Cupro Nickel 70/30 Threaded Pipe Cap
- ASTM B467 Socketweld Pipe Cap
- ASME SB467 Forged Pipe End Cap
- UNS C71500 Socketweld Union
- ANSI B16.5 Cupro Nickel 70/30 Union
- ASTM B467 Threaded Union
- ASME SB467 Forged Union
- UNS C71500 Forged Bushing
- B16.36 Hex Head Bushing
- ASTM B467 Threaded Bushing
- ASME SB467 Forged Threaded Bushing
- UNS C71500 Threaded Nipple
- B16.36 Socketweld Nipple
- ASTM B467 Swage Nipple
- ASME SB467 Hex Nipple
- Cupro Nickel 70/30 Screwed Pipe Nipple
CHEMICAL COMPOSITION OF COPPER NICKEL 70/30 FORGED PIPE FITTINGS
| Element | Cu | Ni | Fe | Mn | Zn | Pb | Other |
|---|---|---|---|---|---|---|---|
| Copper Nickel 70/30 | 65.0 min | 29-33 | 0.4-1.0 | 1.0 max | 1.0 max | 0.05 max | 0.5 max |
MECHANICAL PROPERTIES OF ASME SB122 COPPER NICKEL 70/30 FORGED PIPE FITTINGS
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength, Ultimate | 372-517 MPa | 54000-75000 psi |
| Tensile Strength, Yield | 88.0-483 MPa | 12800-70100 psi |
| Elongation at Break (in 381 mm) | 45.0% | 45.0% |
| Charpy Impact | 107 J | 78.9 ft-lb |
| Machinability (UNS C36000 = 100%) | 20% | 20% |
| Shear Modulus | 57.0 GPa | 8270 ksi |
| Poisson’s Ratio | 0.34 | 0.34 |
| Elastic Modulus | 150 GPa | 21800 ksi |
SPECIFICATION OF NICKEL 70/30 FORGED FITTINGS
| Specification | ASTM B467 / ASME SB467 |
|---|---|
| Dimension Standard | ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799 |
| Size | 1/8″ NB to 4″ NB |
| Type | Socketweld Fittings, Screwed-Threaded Fittings (NPT or PT Type) |
| Rating Pressure | Threaded End – 2000 / 3000/ 6000 LBS. Socket-weld End – 3000 / 6000/ 9000 LBS. |
COPPER NICKEL 70/30 ASTM B122 FORGED FITTINGS EQUIVALENT GRADES
| STANDARD | UNS | WNR. | EN | DIN | JIS | BS |
|---|---|---|---|---|---|---|
| Copper Nickel 70/30 | C71500 | 2.0882 | CuNi30Fe | CuNi30Fe | C7150 | CN 107 |
PHYSICAL PROPERTIES OF ASTM B171 CU-NI 70/30 FORGED PIPE FITTINGS
| Property | Metric | Imperial |
|---|---|---|
| Density | 8.94 g/cm³ | 0.323 lb/in³ |
| Melting Point | 1171°C | 2140°F |
| Specific Heat @ 20°C (68°F) | 0.376 J/g·°C | 0.090 Btu/lb·°F |
| Thermal Conductivity @ 20°C (68°F) | 29 W/m·K | 200 Btu·in/h·ft²·°F |
| Electrical Resistivity @ 20°C (68°F) | 0.040 μΩ·m | 0.040 μΩ·m |
| Mean Coefficient of Thermal Expansion (20-100°C) | 16.2 × 10⁻⁶ /°C | 9.0 × 10⁻⁶ /°F |
| Magnetic Permeability | Non-magnetic | Non-magnetic |
💡 Practical Difference in Use
Use Copper Nickel 70/30 Forged Pipe Fittings when: high resistance to seawater corrosion, erosion, and biofouling is required in high-velocity marine and offshore systems. → Example: offshore platforms, desalination plants, shipbuilding, and power plant cooling systems.
Applications of Copper Nickel 70/30 Forged Pipe Fittings
Cu-Ni 70/30 forged fittings are designed for harsh marine environments with long service life.
- Marine & Offshore: Seawater cooling and ballast systems.
- Power Generation: Condenser and cooling water pipelines.
- Desalination: High-velocity intake and discharge lines.
When to Choose Copper Nickel 70/30?
This grade is ideal for demanding marine applications requiring superior durability.
Choose Copper Nickel 70/30 Forged Fittings when:
- Fast-flowing seawater exposure is continuous
- High erosion and corrosion resistance is required
- Long service life is critical
- Compact forged connections are preferred
- Used in offshore or desalination systems
Usage Guide for Copper Nickel 70/30 Forged Pipe Fittings
Directional change in high-pressure forged piping.
Choose Socket Weld Elbow when
- 90° directional change is required
- Leak-proof welded joint
- High-velocity seawater service
- Offshore and shipboard piping
Threaded flow distribution in high-velocity seawater systems.
Choose Forged Tee when
- Branch connections are required
- Offshore and marine piping
- High erosion resistance is needed
- Critical service lines
Four-way flow distribution in offshore piping networks.
Choose Cross when
- Multi-directional branching is required
- High-velocity seawater service
- High mechanical strength is critical
- Shipbuilding and offshore systems
Connects two pipes securely in offshore piping systems.
Choose Full Coupling when
- Pipe-to-pipe connection is required
- High-pressure marine service
- Leak-resistant threaded joints
- Seawater circulation lines
Branch outlet for instrumentation and drains in marine systems.
Choose Half Coupling when
- Instrument or vent connections
- High-pressure seawater service
- Compact forged design
- Offshore and shipboard piping
Seals pipe ends in high-velocity seawater systems.
Choose Cap when
- Pipe termination is required
- Pressure testing or isolation
- Offshore corrosion resistance
- Marine piping systems
Allows frequent dismantling in offshore and marine systems.
Choose Union when
- Regular inspection is required
- High-pressure seawater lines
- Leak-tight threaded joints
- Offshore platforms and ships
Threaded size transition in compact marine installations.
Choose Bushing when
- Pipe size reduction is required
- Limited installation space
- High seawater corrosion resistance
- Marine utility piping
Threaded pipe extension for high-velocity seawater systems.
Choose Nipple when
- Compact threaded connection is required
- Continuous seawater exposure exists
- High erosion-corrosion resistance is needed
- Offshore and marine piping
Our Forged Pipe Fittings are manufactured using advanced forging processes and undergo extensive quality checks to ensure flawless dimensional accuracy, 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 forging and finishing stages, every forged 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 forged 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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