The ASTM B111 C71500 is a seamless tube made from a Copper-Nickel alloy, commonly referred to as 70/30 Copper-Nickel due to its composition of approximately 70% copper and 30% nickel. It also contains small amounts of iron and manganese, which enhance its strength and corrosion resistance.
Key Features:
Excellent Corrosion Resistance
C71500 is known for its exceptional resistance to seawater corrosion, making it ideal for marine and offshore applications.
High Strength and Durability
The addition of nickel improves its mechanical properties, providing high strength and durability even in extreme environments.
Good Thermal and Electrical Conductivity
Despite its high nickel content, it retains favorable thermal and electrical conductivity.
Ease of Fabrication
This alloy can be easily formed, welded, and fabricated into complex shapes.




Chemical Composition:
Copper (Cu): 69%-71%
Nickel (Ni): 29%-31%
Iron (Fe): 0.4%-1.0%
Manganese (Mn): ≤ 1.0%
Applications:
Marine Industry: Used in heat exchangers, condensers, and piping systems exposed to seawater.
Power Plants: Ideal for cooling systems and condensers.
Desalination Plants: Suitable for evaporator and condenser tubing.
Chemical Processing: Resistant to chemical corrosion, making it useful in industrial applications.
Standards and Specifications:
Manufactured according to the ASTM B111/B111M standard, ensuring consistent quality and properties.
Available in various sizes and wall thicknesses to meet specific project requirements.
Advantages:
Superior resistance to biofouling and erosion.
Long service life, even in highly corrosive environments.
Minimal maintenance requirements.
Copper products that GNEE can provide
|
High quality 99.9% pure copper pipe / straight copper tube / copper alloy pipe |
|||
|
Standard |
ASTM,DIN,BS,CDA,JIS,GB |
||
|
Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
||
|
Shape |
Round,Square,Rectangular,etc. |
||
|
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 |
||
|
Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
||
|
Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
||
|
Price term |
EXW, FOB, CFR, CIF, etc. |
||
|
Payment term |
T/T |
||
|
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
||
|
Delivery time |
According to order quantity |
||
|
Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
||
|
Application |
Copper pipe is the first choice of residential housing water pipes, heating, cooling pipes |
||
|
Straight copper rod/copper round bar |
|||
|
Standard |
ASTM,DIN,BS,CDA,JIS,GB |
||
|
Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
||
|
Shape |
Round,Square,Rectangular,etc. |
||
|
Specifications |
Diameter:3~200mm |
||
|
Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
||
|
Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
||
|
Price term |
EXW, FOB, CFR, CIF, etc. |
||
|
Payment term |
T/T |
||
|
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
||
|
Delivery time |
According to order quantity |
||
|
Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
||
|
Application |
A copper rod is a type of colored metal processing bar stock with high electrical conductivity. It is mainly divided into brass |
||
|
Size |
Width: 10mm to 2000mm, |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
||
|
Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
||
|
Package |
Plastic film with Wooden case or wooden pallet |
||
|
Delivery time |
Prompt delivery or upon your order quantity. |
||
|
Quality Control |
Mill Test Certification is supplied with shipment,Third Part Inspection is acceptable. |
||
|
Application |
widely used inair conditioners,refrigerators,electric,solar water heater, polished pipe an be used in decorative,such as stair |
||
|
Shape |
Round, Square, Oval, can be customized |
||
|
Item |
Copper Wire |
||
|
Standard |
ASTM,DIN,BS,CDA,JIS,GB |
||
|
Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
||
|
Shape |
Round |
||
|
Specifications |
As required. |
||
|
Length |
As required. |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
||
|
Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
||
|
Price term |
EXW, FOB, CFR, CIF, etc. |
||
|
Payment term |
T/T |
||
|
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
||
|
Delivery time |
According to order quantity |
||
|
Application |
Copper wire, as a conductive material, is widely used in power transmission and electronic devices. Transformers, inductors, |
||
Copper CNC machined parts
|
Custom CNC Machining Parts of Most Materials
|
||||
|
Quotation
|
According to your drawing(size, material, thickness, processing content, and required technology, etc)
|
|||
|
Materials Avaiable
|
Brass,Stainless Steel,Q235&Q345 steel, Zinc-plate Sheet,Stainless Steel, Aluminum,Copper, etc.
|
|||
|
Surface Treatment
|
Zinc Plating, chrome plate, powder coating, anodizing, wire drawing, silk-screen printing, etc
|
|||
|
Processing
|
Laser Cutting, Precision Stamping, CNC Bending, CNC Milling, CNC Turning, Threading, Riveting, Drilling, CNC Punching,Die Casting, Laser Welding, etc.
|
|||
|
Testing Equipment
|
CMM/Tool microscope/multi-joint arm/Automatic height gauge/Manual height gauge/Dial gauge/Roughness measurement
|
|||
|
Drawing Formats
|
PRO/E, Auto CAD, Solid Works , UG, CAD / CAM / CAE, PDF
|
|||
|
Our Advantages
|
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. |
|||
|
Tolerance丨Surface Roughness
|
Generally +/-0.1-0.2mm
|
|||
|
Sample service
|
Avaliable before bulk order. Samples charge according your design, The sample fee can be used as the payment for mass goods.
|
|||

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
Square Meters Built
Enterprise Employees
Cooperating Partner
Years Experience




