The material C71640 is a type of copper alloy, specifically categorized under bronze alloys. It is known for its high strength and corrosion resistance, particularly in marine environments.The alloy is sometimes called a nickel bronze because of the substantial nickel content. The material is prized for its durability and is often used in applications where both strength and resistance to corrosion are critical.
Key Properties of C71640 Copper Alloy:
Composition: Typically consists of copper (Cu) with a significant amount of nickel (Ni), and small amounts of other elements such as tin (Sn) and iron (Fe).
Nickel Content: C71640 typically contains around 6% nickel, which gives it enhanced strength and resistance to corrosion, especially in seawater.
Applications: It is commonly used in marine hardware, valves, pump components, and marine engineering due to its excellent corrosion resistance, especially in saltwater environments.
Material Composition:
| Designation | Chemical Composition % | ||||||||
| Cu | Sn | Al | As | Ni | Fe | Mn | Pb max. | Zn | |
| C70400 | Rem | – | – | – | 4.8-6.2 | 1.3-1.7 | 0.3-0.8 | 0.05 | 1.0max |
| C70600 | Rem | – | – | – | 9.0-11.0 | 1.0-1.8 | 1.0max | 0.05 | 1.0max |
| C71500 | Rem | – | – | – | 29.0-33.0 | 0.4-1.0 | 1.0max | 0.05 | 1.0max |
| C71640 | Rem | – | – | – | 29.0-32.0 | 1.7-2.3 | 1.5-2.5 | 0.05 | 1.0max |
Properties:
- Corrosion Resistance: Excellent performance in marine/saline environments, resisting biofouling and erosion.
- Thermal Conductivity: Suitable for heat exchangers, condensers, and desalination systems.
- Mechanical Strength: Durable under high-stress conditions, often cold-worked or annealed for specific applications.
Standards & Applications:
- ASTM/ASME Standards: ASTM B111 (Standard Specification for Copper-Nickel Alloy Tubes for Condensers and Heat Exchangers).
Common Uses:
- Marine engineering (ship piping, offshore platforms).
- Power plant condensers.
- Desalination and chemical processing equipment.
Copper products that GNEE can provide
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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 |
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Shape |
Round, square, rectangular, etc. |
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Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
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Wall Thickness |
0.2mm-120mm |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
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Ultimate Strength (≥ MPa) |
460-680 |
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Cu (Min) |
99% |
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Surface |
Mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
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Specifications |
Round：Wall thickness: 0.2mm~120mm,Outside Diameter: 2mm~910mm Square：Wall thickness: 0.2mm~120mm, Size: 2mm*2mm~1016mm*1016mm |
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Package |
Export standard package: bundled wooden box, suit for all kinds of transport,or be required |
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Standard
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ASTMB152,B187,B133,B301,B196,B441,B465,JISH3250-2006,
GB/T4423-2007,etc |
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Material
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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 |
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Diameter
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3mm~800mm
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Length
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1.0m 5.8m,6m,or as required
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Container Size
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20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) |
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Price Term
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EXW, FOB, CFR, CIF, etc.
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Application
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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. |
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Product Name |
Copper Wire |
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Standard |
ASTM AISI DIN EN GB JIS |
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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 |
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Size |
OD:as required |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2 hard,full hard,soft,etc |
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Tolerance |
±1% |
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Price Terms |
FOB,CFR,CIF |
Copper CNC machined parts
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Business type |
Factory/Manufacturer |
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service |
Metal 3D printing, metal printing, metal powder sintering, plastic 3D printing, custom CNC machining, precision parts CNC 5-axis |
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Apply |
Automobile assembly parts, automation equipment parts, shafts, sheet metal processing, medical equipment, machinery, aircraft, |
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Materials |
AL 6061-T6,6063,7075-T |
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303,304,316L,17-4(SUS630 |
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4140,Q235,Q345B,20#,45# |
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TA1,TA2/GR2,TA4/GR5,TC4,TC18 |
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C36000(HPb62),C37700(HPb59),C26800(H68),C22000(H90) |
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Copper, bronze, magnesium alloy, photosensitive resin, PA6, PA66, POM, acrylic, PC, etc |
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finish |
Sand blasting, anodizing color, blackening, electroplating, electrolytic polishing |
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Powder coating, PVD passivation, titanium plating, electro zinc plating |
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Electrochromium plating, electrophoresis, QPQ (quenching-polishing-quenching |
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Electrolytic polishing, chrome plating, knurling, laser etching marks, etc. |
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Main equipment |
Metal printer 3/4/5 axis CNC machining center CNC machining center (milling machine), CNC lathe, grinder |
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Cylindrical grinders, drilling machines, laser cutting machines, etc. |
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Drawing format |
STEP,STP,GIS,CAD,PDF,DWG,DXF |
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tolerance |
Customer drawing requirements |
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Surface roughness |
Ra 0.1~3.2 |
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Inspect |
Complete testing laboratory equipped with micrometers, optical comparators, vernier calipers, coordinate measuring machines |
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Depth caliper vernier, universal protractor, clock, internal Celsius meter |
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capacity |
Metal 3D printer working scope 420mm*420mm*450mm |
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CNC turning work scope φ0.5mm-φ150mm*300mm |
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CNC milling work scope 510mm*1020mm*500mm |
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Supply capacity |
200000 pieces/month |
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Packing type: |
PP bags, cartons, wooden boxes, PVC pallets, machine parts copy paper |
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Quality control |
100% inspected |
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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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Enterprise Employees
Cooperating Partner
Years Experience
