USA Piping Solution supplies Copper Nickel condenser and heat exchanger tube to BS 2871 Part 3, BSI designation CN107, the British Standard covering seamless copper alloy tube for heat exchangers. CN107 is the 70/30 copper-nickel composition, CuNi30Mn1Fe, widely specified on UK and European shipbuilding and offshore projects, and it is often called up alongside EEMUA and NES publications on naval and offshore work. Every tube ships mill certified and traceable to heat, temper, and test report. If your project instead specifies the American standard, see our ASTM B111 C71500 Copper Nickel Condenser Tube page, the same alloy under its US designation.
Standard
BS 2871 is split into three parts, and it matters which one a spec calls out: Part 1 covers copper tube for water, gas, and sanitation; Part 2 covers copper alloy tube for general purposes; Part 3, the part this page covers, is written specifically for seamless copper and copper alloy tube for heat exchangers.
| Specification | Details |
|---|---|
| Standard | BS 2871 Part 3 |
| BSI designation | CN107 |
| EN / ISO equivalent | CuNi30Mn1Fe, EN 12451 |
| US equivalent | ASTM B111, UNS C71500, covered on our companion page |
| Related UK/offshore specs | Frequently referenced alongside EEMUA 144 and NES 779 on marine and offshore projects |
| Type | Seamless |
| Form | Condenser and heat exchanger tube |
For general purpose tube outside heat exchanger service, see BS 2871 Part 2, or for the full 70/30 grade including welded pipe, see our Copper Nickel 70/30 Pipes & Tubes page. The 90/10 grade carries its own BS designation, CN102, under the same three-part structure; see Copper Nickel 90/10 Pipes & Tubes if that is the grade your project needs.
Applications
- UK & European Shipbuilding: condenser and heat exchanger tube for naval and commercial vessels built to British Standard specifications.
- North Sea & Offshore Platforms: cooling water heat exchangers on offshore installations, often specified alongside EEMUA and NES documentation.
- Desalination Plants: evaporator and heat-recovery tube bundles in MSF/MED systems.
- Power Generation: condenser tube bundles on projects built to British and European standards.
Copper-nickel alloys for seawater service have a long history in British naval engineering, and BS 2871's copper-nickel tube specifications carry that Admiralty-linked heritage into current commercial and offshore use.
Have a Drawing Calling Out CN107? Send It Over
Testing & Availability
Every heat is tested and mill certified to BS 2871 Part 3; see our Quality Policy page for the full testing program we run across all grades. Send us your OD, wall thickness, and length requirement and we'll confirm current mill availability and lead time.
Related Products
- ASTM B111 C71500 Copper Nickel Condenser Tube
- Copper Nickel 70/30 Pipes & Tubes
- Condenser Tubes
- Heat Exchanger Tubes & Pipes
- Boiler & Heat Exchanger Tubes
- Copper Nickel Flanges
Frequently Asked Questions
Is CN107 the same material as ASTM C71500?
Yes. Both are CuNi30Mn1Fe, 70% copper and 30% nickel, in seamless heat exchanger tube form. CN107 is the BSI designation under BS 2871 Part 3; C71500 is the UNS designation under ASTM B111. See our ASTM B111 C71500 page if your project needs the US designation instead.
Does this tube meet EEMUA 144 or NES 779 requirements?
Those publications are commonly specified alongside BS 2871 Part 3 on UK marine and offshore projects. Tell us which one your project calls out and we'll confirm compliance and certification against it.
Can you supply a mill certificate in BS 2871 format for a UK client?
Yes, tell us the certification format your project requires and we'll issue accordingly.