ASTM B111 C70600 is a specification for seamless tubes fabricated from a 90-10 copper-nickel alloy (UNS C70600), which contains approximately 90% copper and 10% nickel, along with small additions of iron(1%-1.8%) and manganese(≤1%) for enhanced strength and corrosion resistance. This product refers to tubes that are manufactured through a seamless extrusion and drawing process, ensuring a homogeneous structure without welded seams.
These tubes are specifically engineered for water treatment applications, particularly in demanding environments involving raw, brackish, or seawater. The alloy's inherent properties provide exceptional resistance to corrosion, erosion, impingement attack, and biofouling, ensuring long service life and reliability in heat exchangers, condensers, desalination units, and various water conveyance systems.
Chemical & Mechanical Properties
Chemical Composition of C70600 Copper-Nickel Tube (ASTM B111 Standard)
| Element | Composition (%) (Minimum) | Composition (%) (Maximum) |
|---|---|---|
| Copper (Cu) | Remainder | Remainder |
| Nickel (Ni) | 9.0 | 11.0 |
| Iron (Fe) | 1.0 | 1.8 |
| Manganese (Mn) | 0.5 | 1.0 |
| Lead (Pb) | - | 0.02 |
| Carbon (C) | - | 0.05 |
| Phosphorus (P) | - | 0.02 |
| Sulfur (S) | - | 0.02 |
| Zinc (Zn) | - | 0.5 |
| Other Impurities | - | 0.1 |
| Total Other Impurities | - | 0.5 |
Mechanical Properties of C70600 Copper-Nickel Tube (Typical for Annealed Condition)
| Property | Value | Unit | Condition / Standard |
|---|---|---|---|
| Tensile Strength | 380 - 480 | MPa (55 - 70 ksi) | Annealed |
| Yield Strength (0.2% Offset) | 140 - 210 | MPa (20 - 30 ksi) | Annealed |
| Elongation | 35 - 45 | % in 2 inches | Annealed |
| Hardness | 55 - 75 | HRB (Rockwell B) | Annealed |
| Modulus of Elasticity | 135 | GPa (20 x 10⁶ psi) | - |
| Density | 8.94 | g/cm³ (0.323 lb/in³) | - |
Key Adventages of ASTM B111 C70600 Copper nickel round tube
Excellent Resistance to Seawater Corrosion
The alloy effectively resists uniform corrosion, pitting, crevice corrosion, and impingement attack caused by high-velocity seawater. This is its most fundamental advantage.
Outstanding Biofouling Resistance
The slow release of copper ions effectively prevents marine organisms (such as barnacles, algae) from adhering to and growing on the inner pipe wall, reducing maintenance needs and maintaining flow efficiency.
Good Workability and Formability
Annealed tubes have high ductility and are easily bent, flared, flanged, and welded, facilitating on-site installation and the construction of complex piping systems.
Superior Resistance to Stress Corrosion Cracking (SCC)
Compared to some other alloys (such as certain stainless steels), 90-10 CuNi has high resistance to stress corrosion cracking in chloride environments, offering greater reliability.
Long Service Life and High Reliability
Its combined corrosion and erosion resistance ensures a very long service life in harsh marine and industrial environments, reducing the total cost of ownership.
CuNi 90/10 Tube Main Applications:
Shipbuilding and Offshore Engineering: Seawater cooling systems, firefighting systems, ballast water systems, bilge water systems, and fuel pipelines on ships.
Offshore Oil and Gas Platforms: Seawater cooling pipes, firewater pipes, water injection pipelines, and various process piping on offshore platforms.
Desalination Plants: Heat exchanger tubes, evaporator tubes, and brine heater tubes in Multi-Stage Flash (MSF) and Multi-Effect Distillation (MED) units.
Power and Energy Industry: Power station condenser tubes and pipelines for handling corrosive fluids in geothermal energy systems.
Chemical and Process Industries: Fabrication of evaporators, heat exchangers, and condensers for handling salt solutions, brines, and other corrosive chemicals.
Copper products that GNEE can provide
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High quality 99.9% pure copper pipe / straight copper tube / copper alloy pipe |
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Standard |
ASTM,DIN,BS,CDA,JIS,GB |
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Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
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Shape |
Round,Square,Rectangular,etc. |
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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 Rectangularwall thickness:0.2mm~120mm,size:2mm*4mm~1016mm*1219mm |
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Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
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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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Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
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Price term |
EXW, FOB, CFR, CIF, etc. |
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Payment term |
T/T |
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Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
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Delivery time |
According to order quantity |
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Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
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Application |
Copper pipe is the first choice of residential housing water pipes, heating, cooling pipes |
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Straight copper rod/copper round bar |
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Standard |
ASTM,DIN,BS,CDA,JIS,GB |
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Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
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Shape |
Round,Square,Rectangular,etc. |
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Specifications |
Diameter:3~200mm |
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Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
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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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Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
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Price term |
EXW, FOB, CFR, CIF, etc. |
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Payment term |
T/T |
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Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
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Delivery time |
According to order quantity |
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Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
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Application |
A copper rod is a type of colored metal processing bar stock with high electrical conductivity. It is mainly divided into brass |
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Size |
Width: 10mm to 2000mm, |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
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Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
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Package |
Plastic film with Wooden case or wooden pallet |
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Delivery time |
Prompt delivery or upon your order quantity. |
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Quality Control |
Mill Test Certification is supplied with shipment,Third Part Inspection is acceptable. |
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Application |
widely used inair conditioners,refrigerators,electric,solar water heater, polished pipe an be used in decorative,such as stair |
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Shape |
Round, Square, Oval, can be customized |
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Item |
Copper Wire |
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Standard |
ASTM,DIN,BS,CDA,JIS,GB |
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Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
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Shape |
Round |
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Specifications |
As required. |
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Length |
As required. |
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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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Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
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Price term |
EXW, FOB, CFR, CIF, etc. |
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Payment term |
T/T |
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Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
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Delivery time |
According to order quantity |
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Application |
Copper wire, as a conductive material, is widely used in power transmission and electronic devices. Transformers, inductors, |
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Copper CNC machined parts
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Custom CNC Machining Parts of Most Materials
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Quotation
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According to your drawing(size, material, thickness, processing content, and required technology, etc)
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Materials Avaiable
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Brass,Stainless Steel,Q235&Q345 steel, Zinc-plate Sheet,Stainless Steel, Aluminum,Copper, etc.
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Surface Treatment
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Zinc Plating, chrome plate, powder coating, anodizing, wire drawing, silk-screen printing, etc
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Processing
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Laser Cutting, Precision Stamping, CNC Bending, CNC Milling, CNC Turning, Threading, Riveting, Drilling, CNC Punching,Die Casting, Laser Welding, etc.
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Testing Equipment
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CMM/Tool microscope/multi-joint arm/Automatic height gauge/Manual height gauge/Dial gauge/Roughness measurement
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Drawing Formats
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PRO/E, Auto CAD, Solid Works , UG, CAD / CAM / CAE, PDF
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Our Advantages
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1.) 24 hours online service & Quickly Quote/Delivery.
2.) 100% QC quality inspection before delivery, and can provide quality inspection form.
3.) 18+ years of experience in the CNC machining area and have a senior design team to offer perfect modification suggestions. |
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Tolerance丨Surface Roughness
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Generally +/-0.1-0.2mm
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Sample service
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Avaliable before bulk order. Samples charge according your design, The sample fee can be used as the payment for mass goods.
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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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