ASTM B111 C71500 Copper Nickel Tubes
UNS C44300 Admiralty Brass Tube PDF
We can supply tubes in Copper and Copper Alloys for many applications
Seamless tubes for heat exchanger and condensers
Seamless copper tubes for water and gas in sanitary and heating applications
Seamless copper tubes for air conditioning and refrigeration
Seamless round tubes for general purpose
How to select heat exchanger tubes from ASTM B111, C70600, C71500, C44300, and C68700?
C70600: Offers excellent corrosion resistance and biofouling resistance in seawater and high-salinity environments, making it the most cost-effective and versatile choice for marine heat exchangers.
C71500: With higher nickel content, it provides superior corrosion resistance and mechanical strength in high-flow, highly corrosive conditions, ideal for critical equipment demanding maximum reliability.
C44300: Delivers outstanding thermal conductivity and strong dezincification resistance in freshwater and low-salinity cooling systems, serving as an economical and efficient general-purpose option.
C68700: Combines good erosion-corrosion resistance with anti-fouling properties in seawater through aluminum addition, particularly suitable for medium-to-low flow heat exchange applications.
Heat Exchanger And Condensers Copper Alloy Tubes
| Admiralty C44300 | Highly resistant to general corrosion – where pressures, velocities and temperatures are moderate. |
| Alluminium Brass C68700 | These tubes are especially adapted to resist corrosion by both salt and brackish waters. |
| Copper Nickel 90/10 C70600 | This alloy is highly resistant to corrosion by turbulently flowing sea water indicate it to be an excellent condenser tube alloy for salt water use. |
| Copper Nickel 80/20 C71000 | This alloy has intermediate properties between those of 10% and 30% copper nickel. Tubes of this alloy have found widest use in feedwater heaters and evaporators. |
| Copper Nickel 70/30 C71500 | Condenser tubes of this alloy are giving long and dependable service at sea. It is also highly satisfactory for tubes in evaporators, condensers, and superheaters. This alloy is particularly desirable where high temperatures are encountered. |
Seamless Copper Alloy Condenser Tubes International Standards
| Material | European | American |
|---|---|---|
| Copper | EN 12449 – Cu DHP | ASTM B111 / ASTM B 75 C12200 |
| Admiralty Brass | EN 12451 – CuZn28Sn1As | ASTM B111 C44300 |
| Aluminum Brass | EN 12451 – CuZn20AI2As | ASTM B111 C68700 |
| 90/10 Copper Nickel | EN 12451 – CuNi10Fe1Mn | ASTM B111 C70600 |
| 70/30 Copper Nickel | EN 12451 – CuNi30Fe1Mn | ASTM B111 C71500 |
Copper Nickel Pipe Standards and Composition
| Trade Name | UNS | Copper Nickel Industry Specifications | Chemical Composition | Min. Tensile (KSI) |
Min. Yield (KSI) |
Elongation % |
| CuNi 90/10 | UNS C70600 UNS C70620 |
ASME SB111, SB171, SB359, SB395, SB466, SB467, SB543 ASTM B111, B122, B151, B171, B359, B395, B432, B466, B467, B543, B608 DIN 2.0872 MIL C-15726, T-15005, T-16420, T-22214 SAE J461, J463 |
Cu 88.6 min Pb. 05 max* Fe 1.8 max Zn 1 max* Ni 9-11 max Mn 1.0 max |
38 | 15 | 30 |
| CuNi 90/10 | UNS C70600 | EEMUA 144 90/10, 145 90/10, 14 90/1 | Cu rem. Pb. 01 max Fe 1.5-2.0 Zn 0.2 max P 0.2 max S 0.2 max Ni 10-11 Mn 0.5-1.0 |
40 | 15 | 30 |
| CuNi 70/30 | UNS C71500 UNS C71520 |
ASME SB111, SB171, SB359, SB395, SB466, SB467, SB543 ASTM B111, B122, B151, B171, B359, B395, B432, B467, B543, B552, B608, F467, F468 DIN 2.0882 MIL C-15726, T-15005, T-16420, T-22214 SAE J461, J463 |
Cu rem (65.0 min) Pb. 05 max* Fe 0.4-1.0 Zn 1 max* Ni 29-33 Mn 1 max |
52 | 18 | 45 |
| CuNi 70/30 | UNS C71640 | ASTM B111, B543, B552 | Cu rem Pb. 05 max* Fe 1.7-2.3 Zn 1 max* Ni 29-32 Mn 1.5-2.5 |
63 | 25 | – |
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.
