ASTM B111 C71500 Copper Nickel Tubes
Copper Nickel also known as Cupro nickel or CuNi, has proven to be very resistant to seawater, brine water, organic compounds, salts, diluted non-oxidizing acids, and more. Due to its complete resistance towards marine organisms such as barnacles, Copper Nickel tubing is commonly used in seawater piping systems.
Copper nickel alloys are of two types that include 70/30 and 90/10. The 70/30 copper nickel alloys have great resistance to sea water-related corrosion due to the presence of significant amounts of manganese and iron. Whereas, 90/10 has high strength corrosion resistance with high ductility and toughness, makes it a popular grade for marine, architectural and industrial applications.
70/30 is a 70% copper, 30% nickel alloy with additions of iron and manganese. These elemental additions make it somewhat more resistant to corrosion and erosion and with slightly improved strength level than 90/10, making it suitable for more demanding applications. In particular, its corrosion resistance is notably improved in high-velocity waters (up to 4.5m/s) and polluted seawater.
Carlson Alloy 90 10 Cu Ni is a copper-based alloy developed as a cost-effective substitute for 70 30 Cu Ni. An addition of approximately 1.4% iron was made to increase its resistance to general corrosion, erosion and impingement corrosion resulting form, the turbulent flow of water containing air bubbles and silt flowing at a high velocity. 90 10 Cu Ni has good strength at moderately elevated temperatures. It can be fabricated by both hot and cold-working procedures, and is readily weldable.
Applications
90 10 Cu Ni is widely used in marine service, offshore platform sea water piping, tidewater power plants, desalination plants, oil refineries, and in the chemical process industry.
Applications
90 10 Cu Ni is widely used in marine service, offshore platform sea water piping, tidewater power plants, desalination plants, oil refineries, and in the chemical process industry.
Key Properties
Properties of copper nickel alloys vary with composition, however, some properties of copper nickel alloys are outlined below.
Outstanding resistance to corrosion
70/30 is stronger and has superior resistance to impingement corrosion
90/10 is slightly superior compared to the 70/30 alloy
Salient Features
Ductile
Can be hardened only by cold working
Good corrosion resistance
Good strength
Electrical resistance
Product applications include condenser tubes and plates, distiller tubes, tube sheets and baffles for condensers and heat exchangers, evaporator and heat exchanger tubes, salt water piping, water boxes, ship hulls and hot water tanks.
Product Forms We Can Provide
| Product Category | Material Standards | Common Alloys | Key Specifications (Can be Customized) |
|---|---|---|---|
| Copper Tubes | ASTM B75, B88, B280,B111; EN 12449, 12451; DIN EN 12735; JIS H3300 | C10100 (OFE), C11000 (ETP), C12200 (DHP), C23000, C70600,C71500 | OD: 3mm - 300mm Wall Thickness: 0.5mm - 20mm Temper: Soft (O), Half-Hard (H50), Hard (H80) Form: Straight Lengths, Coils, U-Bends |
| Copper Sheets / Plates | ASTM B152, B248, B248M; EN 1652; DIN 1787; JIS H3100, H3250 | C10100 (OFE), C11000, C10200 (OF), C26000, C86200 | Thickness: 0.3mm - 100mm Width: Up to 1200mm Length: Up to 3000mm (or coils) Surface: Mill, Polished, Brushed |
| Copper Rods / Bars | ASTM B187, B301, B411; EN 12163, 12164; DIN 17672; JIS H3250 | C10100 (OFE), C11000, C14500, C36000, C63000 | Diameter/Rect. Size: 3mm - 300mm Shape: Round, Square, Hexagonal, Rectangular Condition: Drawn, Extruded, Hot Rolled |
| Copper Wires | ASTM B1, B2, B3, B258; EN 13601; IEC 60228; JIS H3100 | C10100 (OFE), C11000, C14420, C14500 | Diameter: 0.1mm - 20mm Temper: Soft, Annealed, Hard-Drawn Form: Bare, Tinned, Stranded, on Spools |
| Copper Foils / Strips | ASTM B103, B370; EN 1652; DIN 1787; JIS H3100 | C10100 (OFE), C10200, C11000, C19400, C26800 | Thickness: 0.02mm - 2.0mm Width: Up to 600mm Temper: Rolled, Annealed |
| CNC Machining Parts | As per Customer Drawing/Req. | All Common Copper Alloys (including C10100, C11000, C86200, etc.) | Process: Turning, Milling, Drilling, Tapping Tolerance: ±0.005mm - ±0.1mm Post-Processing: Deburring, Polishing, Plating |
Our factory
Our manufacturing facility operates a comprehensive and modern production line, equipped with advanced continuous casting, precision rolling, high-speed drawing, and multi-axis CNC machining centers, enabling us to process copper and copper alloys (such as C10100, C11000, C12200, C71500,C70600 etc.) into a full range of products including tubes, sheets, rods, wires, and foils. To ensure top-tier quality, we have implemented a rigorous in-process and final inspection system, utilizing state-of-the-art equipment such as spectrometers for material verification, digital tensile testers for mechanical property checks, precision dimensional gauges, and eddy current or ultrasonic testers for defect detection, guaranteeing that every product meets or exceeds international standards such as ASTM, EN, and JIS, as well as specific customer requirements.
