High Purity ASTM B75 copper 90/10 instrumentation tube, ETP copper UNS C11000 copper tubing, DHP copper (C12200) instrument tube, ASTM B251 copper alloy 70/30 instrumentation tube, ISO copper instrumentation tube, copper tube for process instrumentation, HVAC instrumentation, ASTM B85 copper instrumentation tube, phosphorus deoxidized copper (C12200) instrumentation tube. Ask for the best bulk price.
New Eagle Industrial Corporation offers premium Copper-Nickel (Cu-Ni) Instrumentation Tubes, engineered to deliver exceptional corrosion resistance, mechanical strength, and durability for demanding industrial applications. Manufactured in compliance with international standards such as ASTM B75, ASTM B68, and ASTM B251, these tubes are ideal for use in chemical, marine, and process instrumentation systems where reliability and long-term performance are crucial.
Copper-Nickel Instrumentation tubes, commonly available in grades 90/10 (CuNi 90/10) and 70/30 (CuNi 70/30), provide outstanding resistance to seawater, brackish water, and other aggressive environments. Their inherent anti-fouling characteristics reduce the risk of biofouling in instrumentation lines, ensuring consistent performance over time. The material’s excellent tensile strength and ductility make it suitable for high-pressure instrumentation systems, allowing seamless integration with valves, fittings, and process equipment.
Cupro-Nickel Instrumentation Tubes are produced with tight dimensional tolerances, smooth surface finishes, and strict quality control measures to meet project-specific requirements. Available in both seamless and welded configurations, these tubes can be supplied in standard sizes or custom lengths to suit specialized instrumentation systems. Certified for international quality standards.
Copper alloy 90/10 instrumentation tubing – Technical Specifications
ASTM A75 Seamless copper instrumentation tubes – Chemical Composition
- ETP Copper (C11000): Electrolytic tough pitch copper, widely used for instrumentation and electrical applications.
- DHP Copper (C12200): Phosphorus-deoxidized copper, preferred for tubing due to improved corrosion resistance and mechanical strength.
- Cu-Ni alloys (90/10, 70/30): Used for marine and seawater instrumentation applications, offering high corrosion resistance.
| Grade | Cu (%) | Pb (%) | P (%) | Zn (%) | Sn (%) | Ni (%) | Other Elements |
|---|---|---|---|---|---|---|---|
| ETP Copper (C11000) | 99.90 min | 0.05 max | 0.04 max | 0.05 max | 0.05 max | – | – |
| DHP Copper (C12200) | 99.90 min | 0.05 max | 0.02–0.04 | 0.05 max | 0.05 max | – | – |
| CuNi90/10 (C70600) | 88–90 | – | – | 0.5 max | – | 9–11 | Fe 0.5 max |
| CuNi70/30 (C71500) | 69–71 | – | – | 0.5 max | – | 29–31 | Fe 0.5 max |
Cupro Nickel 70/30 instrumentation tubes – Mechanical Properties
The table summarizes key mechanical properties of copper and copper-alloy instrumentation tubes, including tensile strength, yield strength, elongation, and hardness for different grades.
| Material / Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB / HV) |
|---|---|---|---|---|
| ETP Copper (C11000) | 210–250 | 70–120 | 35–50 | 60–90 |
| DHP Copper (C12200) | 240–270 | 130–150 | 30–40 | 80–100 |
| Cu-Ni Alloy 90/10 | 310–380 | 120–150 | 25–35 | 95–120 |
| Cu-Ni Alloy 70/30 | 350–400 | 140–160 | 20–30 | 100–130 |
UNS C11000 copper instrumentation tubes – Equivalent Grades
This table lists international equivalent grades of copper and copper-alloy instrumentation tubes for easy reference across ASTM, ISO, JIS, BS, and GOST standards.
| Material / Grade | UNS | EN / WNR | JIS | BS | GOST |
|---|---|---|---|---|---|
| ETP Copper | C11000 | Cu-ETP | SUSC1100 | BS2871 | ГОСТ 859–78 |
| DHP Copper | C12200 | Cu-DHP | SUSC1220 | BS2871 | ГОСТ 859–78 |
| Cu-Ni Alloy 90/10 | C70600 | CuNi10Fe1Mn | SUS706 | BS2871 | ГОСТ 12770–90 |
| Cu-Ni Alloy 70/30 | C71500 | CuNi30Fe1Mn | SUS715 | BS2871 | ГОСТ 12770–90 |
How does the copper-nickel ratio affect corrosion resistance?
- The ratio of copper to nickel in Cu-Ni alloys plays a critical role in determining their corrosion performance.
- Alloys with higher nickel content, such as 70/30 Cu-Ni, exhibit superior resistance to seawater, brackish water, and chloride-induced corrosion, making them ideal for marine and offshore instrumentation systems.
- Alloys with lower nickel content, such as 90/10 Cu-Ni, provide excellent corrosion resistance in less aggressive fluids, commonly used in chemical processing and hydraulic instrumentation lines.
- Choosing the correct Cu-Ni ratio ensures long-term reliability and reduced maintenance in the intended environment.
Are Copper-Nickel instrumentation Tubes compatible with stainless steel and other metals?
- Yes, Cu-Ni instrumentation tubes are metallurgically compatible with a variety of metals including stainless steel, carbon steel, and brass.
- Proper selection of fittings, jointing methods, and installation practices is essential to prevent galvanic corrosion in mixed-metal systems.
- This compatibility allows Cu-Ni tubes to be integrated into complex instrumentation networks, including pipelines, manifolds, and control systems, without compromising performance.
Can Copper-Nickel instrumentation Tubes be bent or fabricated for complex instrumentation layouts?
- Cu-Ni tubes offer excellent ductility and workability, which allows them to be cold-bent, flared, or expanded according to project requirements.
- These tubes maintain mechanical strength and corrosion resistance even after bending, making them suitable for tight or intricate instrumentation manifolds.
- Their fabrication flexibility ensures easy installation in offshore, marine, and industrial environments while maintaining the integrity of the instrumentation system.
Global Export Network for Copper Nickel instrumentation Tubing
As a trusted manufacturer and exporter, New Eagle Steel supplies Duplex Instrumentation tubes globally. Our high-performance products are widely used in chemical processing, pollution control, marine, and pharmaceutical industries across Europe, the Middle East, Asia, and the Americas, ensuring exceptional corrosion resistance, reliability, and precision engineering.
- Middle East: United Arab Emirates (UAE), Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, Yemen, Iran, Iraq, Israel, Jordan, Lebanon, Syria, Turkey
- North Africa: Egypt, Algeria, Morocco, Tunisia, Libya
- Asia Pacific: Singapore, Malaysia, Vietnam, Indonesia, Thailand, Philippines, Cambodia, Laos, Myanmar, Brunei, Timor-Leste, Taiwan, Japan, South Korea
- Europe: Spain, Belgium, Netherlands, France, Germany, Italy, United Kingdom (England), Poland, Cyprus, Malta, Russia
- Americas: Brazil, Mexico, Chile, Peru, Colombia, Argentina, United States (USA), Canada
- India: Chennai, Coimbatore, Bangalore, Thiruvananthapuram, Pune, Kolkata, Kerala, Karnataka, Gujarat, Mumbai, Delhi
Applications of ASTM A251 Copper nickel instrumentation tubes Across Industries
Oil & Gas Industry
Petrochemical & Chemical Processing
Power Generation (Thermal, Nuclear & Renewable)
Marine & Offshore Engineering
Pharmaceuticals & Biotechnology
Food, Beverage & Dairy Processing
Pulp & Paper Industry
Aerospace & Defense
Automotive & Transportation
Instrumentation & Control Systems
Water Treatment & Desalination
HVAC & Heat Exchanger Systems
Construction & Infrastructure Projects
Mining & Metallurgy
