Copper Nickel 70/30 Tubes / Copper Nickel UNS C71500 Tubes Supplier
Information
Cu-Ni 70/30 Tubes, Copper Nickel 70 / 30 High-Pressure Tube, UNS C71500 Welded Tube Exporter, Copper Nickel 70 / 30 Decorative Tube, 70/30 Copper Nickel Tubing, 70/30 Cu-Ni Seamless Tubes, ASME SB111 Copper Nickel Tube Suppliers and Exporters in India.
Copper Nickel 70 / 30 Cold Rolled Coiled Tube, Suppliers of ASTM B111 Copper Nickel 70/30 Seamless Tubes, Copper Nickel 70 / 30 Sanitary Tube, Copper Nickel 70/30 Welded Pipes, Cu – Ni 70/30 Tube, 70/30 Copper Nickel Welded Tubing Manufacturer in India.
Certified Standards
About Our Copper Nickel 70/30 Tubes
Lakshya Steel is a leading Copper Nickel 70/30 Tube Manufacturer, Supplier, and Exporter serving clients across marine, offshore, power generation, and chemical processing industries worldwide. We specialize in Copper Nickel products including Cupro Nickel 70/30 Tube, CuNi 70/30 Tube, CUNI 70 30 Tube, Cu Ni 70 30 Seamless Tube, and Copper-Nickel Alloy 70/30 Seamless Tube in all standard and custom configurations.
The alloy UNS C71500, CDA 715 / Alloy 715, WNR 2.0882, CN107, and CuNi30Mn1Fe contains 70% copper and 30% nickel with controlled additions of iron and manganese, delivering the best resistance of any copper alloy to impingement attack and corrosion from most acids and seawater. It is widely used in severe corrosive conditions where service lives longer than those of other copper alloys are desired, particularly in Heat Exchanger Tube, Condenser Tube, Evaporator Tube, and Distiller Tube applications.
As a reliable Copper Nickel 70/30 Tube Supplier and Exporter, we manufacture to ASTM B111, ASTM B466 (seamless), ASTM B543 (welded), ASTM B552 (condenser), ASTM B359 (finned), ASTM B395 (U-bend), MIL-T-16420, MIL-T-15005, MIL-T-22214, DEF STAN 02-879 Annex B, DEF STAN 02-780, NES 780, and BS 2874 specifications with full EN 10204 3.1 mill test certificates, 100% eddy current testing, 100% hydrostatic testing, and PMI reports.
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70 / 30 Cu / Ni Ratio |
8.94 g/cm³ Density |
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1/2″–6″ OD Range |
0.15–1.50 mm Wall Thickness |
Available Types of CuNi 70/30 Tubes
Available Copper Nickel 70/30 Tube Forms
Our Cupro Nickel 70/30 Tube and CuNi 70/30 Tube are available in the following cross-sectional shapes and specialty forms.
ASTM B111 / B466 / B543 — Full Tube Specifications
Complete specification for Copper Nickel 70/30 Tube, Cupro Nickel 70/30 Seamless Tube, Heat Exchanger Tube, Condenser Tube, and all specialty forms per ASTM, ASME, MIL, DEF STAN, BS, and DIN standards.
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Parameter |
Detail |
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Primary Specifications |
ASTM B111 (Condenser/Heat Exchanger), ASTM B466 (Seamless Pipe & Tube), ASTM B543 (Welded Tube) |
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Additional Specifications |
ASTM B552 (General Heat Exchanger), ASTM B359 (Finned Tube), ASTM B395 (U-Bend Tube) |
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ASME Equivalents |
ASME SB111, SB466, SB543, SB552, SB359, SB395 |
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Military Standards |
MIL-T-16420, MIL-T-15005, MIL-T-22214 |
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British / European |
DEF STAN 02-879 Annex B, DEF STAN 02-780, NES 780, BS 2874, DGS320, EN 12164 |
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Material Grades |
UNS C71500, CDA 715 / Alloy 715, WNR 2.0882, DIN 2.0882, CN107, C71520, CW354H, CuNi30Mn1Fe |
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Type |
Seamless Tube / Welded Tube / ERW Tube |
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Shape |
Round Tube, Square Tube, Rectangular Tube, Hydraulic Tube, Coil Tube, U Shape Tube, Pan Cake Tube |
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Outside Diameter |
1/2 inch to 6 inch (2.0 mm to 406 mm per ASTM B251 / BS EN1057) |
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Wall Thickness |
0.15 mm to 1.50 mm (up to 50 mm for heavy wall) |
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Schedule |
SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH120, SCH140, SCH160, STD, XS, XXS |
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Length |
Up to 18 meters or as requested (standard lengths: 6m, 12m, 18m) — also supplied as U-bent tubes |
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End Finish |
Plain End, Beveled End, Threaded |
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Surface Condition |
Cold Finish, Bright, Annealing, Pickling, Polished |
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Testing |
100% Eddy Current Testing (ECT per Practice E 243), 100% Hydrostatic Testing (7000 psi fiber stress), Ultrasonic Testing (UT), PMI Test, Chemical Analysis, Dimensional Inspection |
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Stress Relief Test |
Mercurous Nitrate Test (ASTM B 154) or Ammonia Vapor Test (ASTM B 858) — required for C71500 per ASTM B111 |
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Certifications |
Mill TC (EN 10204 3.1 / 3.2), PMI, Chemical, Mechanical, NABL, TPI, NACE MR0175/ISO 15156 |
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Packing |
Plywood Boxes, Wooden Cases, Steel Strapping, Protected Ends, or as per Customer Request |
Chemical Composition & Mechanical Properties
Chemical Composition — UNS C71500 / CDA 715 / CN107 / CuNi30Mn1Fe
Chemical Composition (% by Weight) — ASTM B111 / ASTM B466 / DIN 2.0882
| Grade | Cu | Ni | Fe | Mn | Pb | Zn | C |
|---|---|---|---|---|---|---|---|
| Cu-Ni 70/30 (C71500 / CDA 715) | Remainder | 29.0–33.0 | 0.40–1.0 | 1.0 max | 0.05 max | 1.0 max | 0.05 max |
Mechanical Properties — Copper Nickel 70/30 Heat Exchanger Tube
|
Property |
Value (Metric) |
Value (Imperial / Notes) |
|
Tensile Strength (Ultimate) |
372–517 MPa |
54,000–75,000 psi |
|
Tensile Strength (Yield) |
88–483 MPa |
12,800–70,100 psi |
|
Elongation at Break |
45% |
In 381 mm gauge length |
|
Density |
8.94 g/cm³ |
0.323 lb/in³ |
|
Melting Point |
1171 °C |
2140 °F |
|
Thermal Conductivity |
29 W/m·K |
At 20°C |
Equivalent Grades — Copper Nickel 70/30 Tube
International Equivalent Grades — CuNi 70/30 Tube Standards
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Standard Body |
Designation |
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UNS (USA) |
C71500 |
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CDA (Copper Development Association) |
715 / Alloy 715 |
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DIN / WNR (Germany) |
2.0882 / CuNi30Mn1Fe |
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EN (Europe) |
CW354H |
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BS (UK) |
CN107 / BS 2874 |
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JIS (Japan) |
C7150 / C7164 |
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ASTM (Seamless Tube) |
B111 (Condenser), B466 (Pipe & Tube) |
|
ASTM (Welded Tube) |
B543 |
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ASME |
SB111, SB466, SB543 |
|
Military / Defence |
MIL-T-16420, NES 780, DEF STAN 02-879 |
Industries & Applications of Copper Nickel 70/30 Tubes
Our Copper Nickel 70/30 Tube, Cupro Nickel 70/30 Tube, CuNi 70/30 Tube, and Heat Exchanger Tube are widely used across demanding Salt Water Service and Marine Use environments.
- Marine & Offshore
- Heat Exchangers
- Condensers
- Evaporators
- Desalination Plants
- Oil & Gas
- Power Generation
- Shipbuilding
- Chemical Processing
- Cooling Plants
Get the Best Price for your Grade
|
Grade |
Product Type |
Price |
|
CN 90/10 |
Welded Pipes |
On Request / MT |
|
CN 90/10 |
Plates / Sheets |
On Request / MT |
|
CN 70/30 |
Pipes |
On Request / MT |
|
CN 70/30 |
Plates & Sheets |
On Request / MT |
|
CN 70/30 |
Flanges |
On Request / MT |
|
CN 70/30 |
Rods & Bars |
On Request / MT |
|
CN 70/30 |
Tubes |
On Request / MT |
* Prices vary by quantity, specification & delivery terms. Contact us for bulk pricing.
Frequently Asked Questions
What is Copper Nickel 70/30 Tube used for
Copper Nickel 70/30 Tube (UNS C71500) is used for heat exchanger, condenser, evaporator, and distiller tubes in marine, offshore, power, and desalination plants. It offers excellent resistance to seawater corrosion and impingement attack.
What standards govern Copper Nickel 70/30 Heat Exchanger Tube?
Primarily ASTM B111 for condenser and heat exchanger tubes, ASTM B466 for seamless pipe/tube, and ASTM B543 for welded tube, plus ASTM B552, B359, B395, MIL-T specs, DEF STAN 02-879, NES 780, and BS 2874.
What is the difference between seamless and welded Copper Nickel 70/30 Tube?
Seamless (ASTM B111/B466) has no weld seam and offers higher strength and pressure reliability. Welded (ASTM B543) is cost-effective for larger sizes and low-pressure systems. Both supplied as UNS C71500.
What sizes are available in Copper Nickel 70/30 Tube?
Available from 1/2”–6” OD, 0.15–50 mm thickness, SCH10–SCH160, lengths up to 18 m. Supplied as straight, U-bend, coil, pancake, and finned tubes.
What surface finishes are available for Cupro Nickel 70/30 Tube?
Cold finished, bright annealed, pickled, or polished with plain, beveled, or threaded ends. 100% eddy current and hydrostatic testing per ASTM B111.
What are the equivalent grades to UNS C71500?
CDA 715, WNR 2.0882 (CuNi30Mn1Fe), EN CW354H, BS CN107, JIS C7150, C71520. Supplied with PMI and EN 10204 3.1/3.2 certification.
Do you export Copper Nickel 70/30 Tubes internationally?
Yes, exported worldwide with EN 10204 3.1/3.2 MTC, PMI, hydro, eddy current, and third-party inspection reports for marine and industrial heat exchanger projects.
Get In Touch
Request a Quote For
CuNi 70/30 Tubes
As a trusted Copper Nickel 70/30 Tube Manufacturer, Supplier & Exporter, we offer competitive pricing, ready stock, full EN 10204 3.1 / 3.2 certification, 100% ECT & hydrostatic testing, and global delivery for all ASTM B111, ASTM B466, ASTM B543, ASME SB111 Copper Nickel 70/30 Seamless, Welded, U-Bend, Finned & Heat Exchanger Tubes in UNS C71500 / CDA 715 / WNR 2.0882 / CN107.
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Get In Touch
Request a Quote For
CuNi 70/30 Tubes
As a trusted Copper Nickel 70/30 Tube Manufacturer, Supplier & Exporter, we offer
competitive pricing, ready stock, full EN 10204 3.1 / 3.2 certification, 100% ECT & hydrostatic
testing, and global delivery for all ASTM B111, ASTM B466, ASTM B543, ASME SB111 Copper Nickel
70/30 Seamless, Welded, U-Bend, Finned & Heat Exchanger Tubes in UNS C71500 / CDA 715 /
WNR 2.0882 / CN107.
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