Material C71500, also known as Copper-Nickel 70/30, is an alloy that consists of 70% copper and 30% nickel, with small amounts of other elements such as iron and manganese. This alloy is widely used in the form of tubes due to its excellent combination of properties, which include corrosion resistance, medium high strength, and thermal conductivity,it has good creep resistance at high temperatures.
ASTM B111 / ASME SB111
This specification establishes requirements for seamless tube and ferrule stock of copper and various copper alloys up to 3 1/8 in. (80 mm), inclusive, in diameter, for use in surface condensers, evaporators, and heat exchangers.
Chemical Composition%
| UNS No. | Copper, incl silver | Nickel, incl Cobalt | Lead, max | Iron | Zinc,max | Manganese,max |
| C71500 | remainder | 29.0 - 33.0 | 0.05 | 0.4-1.0 | 1.0 | 1.0 |
Mechanical Property
| UNS No. | Temper Designation | Density | Tensile Strength min | Yield Strength min | Expansion of Tube O.D. | |
| Standard | Former | |||||
| C71500 | HR50 | Drawn /Stress-relieved | 0.323lb/in3 8.94g/m³ | 72 ksi / 495 MPa | 50 ksi / 345 MPa | 12%,15% |
| O61 | Annealed | 52 ksi / 360 MPa | 18 ksi / 125 MPa | / | ||
| Tensile Strength At 0.5% extension under load. | ||||||
| Expansion of tube outside diameter, in percent of original outside diameter | ||||||
Advantages
Corrosion Resistance: C71500 tubes are highly resistant to corrosion, particularly in marine environments.Because they can withstand the corrosive effects of saltwater without significant degradation,they are often used in seawater applications.
Biofouling Resistance: The alloy has natural antimicrobial properties, which make it less susceptible to biofouling (the accumulation of aquatic organisms on surfaces).
Thermal Conductivity: Copper-nickel alloys have good thermal conductivity, making them suitable for heat exchanger applications where efficient heat transfer is required.
Strength and Durability: C71500 tubes have good mechanical strength and are durable, which makes them suitable for use in harsh environments and under high-pressure conditions.
Erosion Resistance: C71500 tubes are resistant to erosion, which is important in applications where there is a high flow rate of fluids.
Weldability: The alloy is relatively easy to weld, which facilitates fabrication and repair processes.
Applications
Marine Industry: Can be extensively used in the marine industry for piping systems, heat exchangers, and condensers in seawater desalination plants.
Heat Exchangers: Due to their excellent thermal conductivity and corrosion resistance, they are used in various types of heat exchangers, including those in power generation, chemical processing, and HVAC systems.
Oil and Gas Industry: Can be used in offshore oil and gas platforms for fire water systems, heat exchangers, and other applications where corrosion resistance is critical.
Desalination Plants: The corrosion resistance of C71500 makes it ideal for use in the construction of desalination plants, where the tubes are exposed to a highly corrosive environment.
Industrial Cooling Systems: Can be used in industrial cooling systems where they are in direct contact with corrosive fluids.
Shipbuilding: Can be used in shipbuilding for piping systems, particularly those that carry seawater.
Chemical Processing: Can be used in chemical processing plants where they are exposed to corrosive chemicals.
Air Conditioning and Refrigeration: Can be used in air conditioning and refrigeration systems, especially in environments where there is a risk of corrosion.
Copper products that GNEE can provide
Material | T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920,TP1,TP2, C10930,C11000,C11300,C11400,C11500,C11600,C12000,C12200,C12300,TU1,TU2,etc |
Shape | Round, square, rectangular, etc. |
Length | 3m,5.8m, 6m, 11.8m, 12m, or as required. |
Wall Thickness | 0.2mm-120mm |
Hardness | 1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
Ultimate Strength (≥ MPa) | 460-680 |
Cu (Min) | 99% |
Surface | Mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
Specifications | Round：Wall thickness: 0.2mm~120mm,Outside Diameter: 2mm~910mm Square：Wall thickness: 0.2mm~120mm, Size: 2mm*2mm~1016mm*1016mm |
Package | Export standard package: bundled wooden box, suit for all kinds of transport,or be required |
Standard | ASTMB152,B187,B133,B301,B196,B441,B465,JISH3250-2006, GB/T4423-2007,etc |
Material | C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, C10930,C11000,C11300,C11400,C11500,C11600,C12000,C12200,C12300, C12500,C14200,C14420,C14500,C14510,C14520,C14530,C17200,C19200, C21000,C23000,C26000,C27000,C27400,C28000,C33000,C33200,C37000, C44300,C44400,C44500,C60800,C63020,C65500,C68700,C70400,C70620, C71000,C71500,C71520,C71640,C72200,etc |
Diameter | 3mm~800mm |
Length | 1.0m 5.8m,6m,or as required |
Container Size | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) |
Price Term | EXW, FOB, CFR, CIF, etc. |
Application | Copper bar is widely used in boat building,War industry, Car industry and communication industry where the components need good wear proof and great corrosion resistance |
| Copper Plate / C1100 T2 Pure Copper Sheet 3mm 6mm Thick Customized Sizes Electric Copper Plate | |
| Production Standard | ASTM, JIS, DIN, GB, ISO |
| Material | Copper, Brass, Bronze, White Copper |
| Width | 20mm-2000mm or as the customer's request |
| Thickness | 0.1mm-200mm or as the customer's request |
| Length | 50mm-3000mm |
| Hardness | O, 1/4 Hard, 1/2Hard, 3/4 Hard, H, EH |
| OEM Service | Perforated, Cutting special size, Doing flatness, Surface treatment, etc |
| Payterm | Ex-work, FOB, CIF, CFR, etc |
| Payment | T/T, L/C, Western Union, Alibaba Trade Assurance, etc |
| Delivery Time | Within 3 days for our stock size, 7-15 days for our production |
| Package | Export standard package: bundled wooden box, suit for all kinds of transport, or be required |
| MOQ | No MOQ for stock Size, 100 KG for our production. |
| Sample | Free and available |
| Quality | Mill Test Certificate, ISO9001, SGS, TVE |
| Advantage | Copper is a very ductile and malleable metal. It is high electrical conductivity and high thermal conductivity. Thus, copper parts have a significant advantage for the production of electronic and electrical components. |
Product Name | Copper Wire |
Standard | ASTM AISI DIN EN GB JIS |
Grade | C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, C10930,C11000,C11300,C11400,C11500,C11600,C12000,C12200,C12300, C12500,C14200,C14420,C14500,C14510,C14520,C14530,C17200,C19200, C71000,C71500,C71520,C71640,C72200 T1,T2,T3,TU1,TU0,TU2,TP1,TP2,etc |
Size | OD:as required |
Hardness | 1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2 hard,full hard,soft,etc |
Tolerance | ±1% |
Price Terms | FOB,CFR,CIF |
Copper CNC machined parts
Business type | Factory/Manufacturer |
service | Metal 3D printing, metal printing, metal powder sintering, plastic 3D printing, custom CNC machining, precision parts CNC 5-axis |
Apply | Automobile assembly parts, automation equipment parts, shafts, sheet metal processing, medical equipment, machinery, aircraft, |
Materials | AL 6061-T6,6063,7075-T |
303,304,316L,17-4(SUS630 | |
4140,Q235,Q345B,20#,45# | |
TA1,TA2/GR2,TA4/GR5,TC4,TC18 | |
C36000(HPb62),C37700(HPb59),C26800(H68),C22000(H90) | |
Copper, bronze, magnesium alloy, photosensitive resin, PA6, PA66, POM, acrylic, PC, etc | |
finish | Sand blasting, anodizing color, blackening, electroplating, electrolytic polishing |
Powder coating, PVD passivation, titanium plating, electro zinc plating | |
Electrochromium plating, electrophoresis, QPQ (quenching-polishing-quenching | |
Electrolytic polishing, chrome plating, knurling, laser etching marks, etc. | |
Main equipment | Metal printer 3/4/5 axis CNC machining center CNC machining center (milling machine), CNC lathe, grinder |
Cylindrical grinders, drilling machines, laser cutting machines, etc. | |
Drawing format | STEP,STP,GIS,CAD,PDF,DWG,DXF |
tolerance | Customer drawing requirements |
Surface roughness | Ra 0.1~3.2 |
Inspect | Complete testing laboratory equipped with micrometers, optical comparators, vernier calipers, coordinate measuring machines |
Depth caliper vernier, universal protractor, clock, internal Celsius meter | |
capacity | Metal 3D printer working scope 420mm*420mm*450mm |
CNC turning work scope φ0.5mm-φ150mm*300mm | |
CNC milling work scope 510mm*1020mm*500mm | |
Supply capacity | 200000 pieces/month |
Packing type: | PP bags, cartons, wooden boxes, PVC pallets, machine parts copy paper |
Quality control | 100% inspected |
Delivery time | Sample day: within 7 days |
About Us
Founded in 2008, we specialize in exporting premium copper products. Our manufacturing leverages continuous casting lines and precision drawing machines. Rigorous quality control, including eddy current testing and spectrometer analysis, guarantees the superior performance of our copper tubes and coils for global applications.
If you need any help, please contact us immediately!
Email address：sales@gneemetal.com
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