ASTM B111 C71500 Copper Nickel Tubes
What are Copper Nickel c70600 and C71500 alloys?
Copper Nickel Alloys C70600 (commonly known as Cu-Ni 90/10) and C71500 (Cu-Ni 70/30) are copper-based alloys with primary additions of nickel, iron, and manganese. They are highly valued for their exceptional resistance to corrosion, erosion, and biofouling in seawater and brackish water, making them ideal for marine and industrial applications.
What are the main applications for Cupro Nickel products?
Cupro Nickel products are extensively used in industries that operate in harsh aqueous environments. Key applications include marine and shipbuilding (piping, heat exchangers, hull sheathing), offshore oil & gas (subsea systems, firewater lines), desalination plants (evaporator tubes, brine heaters), and coastal power generation (condenser tubing). Their resistance to seawater corrosion and biofouling is critical in these sectors.
What is the difference between C70600 (90/10) and C71500(70/30)?
The primary difference lies in their nickel content: C70600 contains 10% nickel, while C71500 contains 30% nickel. While both offer excellent seawater corrosion resistance, C71500 (70/30) provides superior strength and enhanced resistance to erosion and impingement attack, particularly in higher velocity and more aggressive seawater conditions. C70600 (90/10) is often preferred for its better anti-fouling characteristics and slightly higher thermal conductivity.
In what forms are Copper Nickel Alloy products available?
GNEE supplies a wide range of copper-nickel alloy C70600 and C71500 products, including pipes (seamless and welded), fittings (butt welded, socket welded, threaded connections), flanges of various types, bars (round bars, square bars, flat bars, hexagonal bars), and plates to meet diverse project and processing needs.
Do you provide material traceability and certifications for Cupro Nickel products?
Absolutely. As a leading manufacturer and exporter, we guarantee full traceability for all our products. Every shipment of Copper Nickel Alloy Products includes the mandatory EN 10204 3.1 Mill Test Certificate (MTC). This certificate provides comprehensive details on the precise chemical analysis, mechanical test results, and all relevant inspection data of the specific heat batch used for your materials, ensuring full compliance with international standards and project specifications.
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.
