Cu-Ni alloys are alloys of copper (base metal with the largest individual content) and nickel with or without other elements, whereby the zinc content may not be more than 1%. When other elements are present, nickel has the largest individual content after copper, compared with each other element. As with other copper alloys, it is necessary to distinguish between wrought alloys, which are processed to semi-finished products, and cast alloys, from which castings are produced by various casting processes. The Cu-Ni alloys with additions of manganese are important in electrical engineering. Additions of iron significantly improve the resistance of Cu-Ni alloys to erosion corrosion in flowing seawater and other aggressive waters.
Specifications
| Form | Specific Sub-Form | System | Standard | Description |
|---|---|---|---|---|
| Bar | ASTM | B151/B151M | COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL ROD AND BAR | |
| Condenser & Heat Exchanger Tube with Integral Fins | ASTM | B956/B956M | WELDED COPPER AND COPPER-ALLOY CONDENSER AND HEAT EXCHANGER TUBES WITH INTEGRAL FINS | |
| Heat Exchanger Tube | ASTM | B543/B543M | WELDED COPPER AND COPPER ALLOY HEAT EXCHANGER TUBE | |
| Pipe | ASTM | B466/B466M | SEAMLESS COPPER-NICKEL PIPE AND TUBE | |
| Welded | ASTM | B608 | WELDED COPPER ALLOY PIPE | |
| Welded | ASTM | B467 | WELDED COPPER-NICKEL PIPE | |
| Plate | ASTM | B171/B171M | COPPER ALLOY CONDENSER TUBE PLATES | |
| Rod | ASTM | B151/B151M | COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL ROD AND BAR | |
| Rod, Bar & Shapes | ASTM | B124/B124M | COPPER AND COPPER-ALLOY FORGING ROD, BAR AND SHAPES | |
| Sheet, Strip, Roller Bar & Plate | ASTM | B122/B122M | COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR | |
| Tube | ASTM | B395/B395M | U-BEND SEAMLESS COPPER AND COPPER ALLOY HEAT EXCHANGER AND CONDENSER TUBES | |
| Welded | ASTM | B552 | SEAMLESS AND WELDED COPPER-NICKEL TUBES FOR WATER DESALTING PLANTS | |
| ASTM | B359/B359M | COPPER AND COPPER-ALLOY SEAMLESS CONDENSER AND HEAT EXCHANGER TUBES WITH INTEGRAL FINS | ||
| ASTM | B466/B466M | SEAMLESS COPPER-NICKEL PIPE AND TUBE | ||
| ASTM | B111/B111M | COPPER AND COPPER ALLOY SEAMLESS CONDENSER TUBES AND FERRULE STOCK |
| Trade Name | UNS | Copper Nickel Industry Specifications | Chemical Composition | Min.Tensile (KSI) |
Min.Yield (KSI) |
Elongation % |
|---|---|---|---|---|---|---|
| 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(65.0 min) Pb .05 max* Fe 0.4-1.0 Zn 1 max* Ni 29-33 Mn 1 max |
52 | 18 | 45 |
Chemical Composition
| Elements | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Cu(1,2) | Pb | Zn | Fe | P | Ni(3) | C | Mn | S | |
| (1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. (3) Ni value includes Co. |
|||||||||
| Min (%) | 65.0 | 0.40 | 29.0 | ||||||
| Max (%) | 0.02 | 0.50 | 1.0 | 0.02 | 33.0 | 0.05 | 1.0 | 0.02 | |
Mechanical Properties
| Form | Temper | Temper Code | Tensile Strength (ksi) |
YS-0.2% Offset (ksi) |
Elongation (%) |
Section Size (in) |
|---|---|---|---|---|---|---|
| * Measured at room temperature, 68°F (20°C). | ||||||
| Flat Products | As Hot Forged - Air Cooled | M10 | 50 Min | 20 Min | 30 Min | 6 |
| As Hot Forged - Air Cooled | M10 | 45 Min | 18 Min | 30 Min | ||




Copper products that GNEE can provide
| Product Name | Copper Pipe |
| Standard | ASTM,JIS,DIN,GB,AISI,DIN,EN |
| Material | T1, T2, T3, C21000, C22000, C22600, C23000, C24000, C26000, C26130, C26800, C27000, C27200, C46500, C51000, C52100, C53400, C61300, C61400, C63000, C63800, C65100, C65500, H63, H65, H68, H70, H80, H85, H90, H96. |
| Purity | 99.9% |
| Technique | Cold drawn, hot rolled, cold rolled and others. |
| Side shape | Round, Square, Rectangular, ect |
| Outer Diameter | 6.35-406mm or Customizable |
| Thickness | 0.5-80mm or Customizable |
| Length | 1-12m or Customizable |
| Surface Treatment | Coating, Oxidation, Coating, Polishing, etc. |
| Type | Seamless, Welded |
| Origin | China |
| Delivery Time | 7-15 days, depending on the situation and quantity |
| Price Terms | EXW, FOB, CIF, CRF, CNF or others |
| Loading Port | Any port in China |
| Payment Term | TT, LC,Cash, Paypal, DP, DA,Western Union or Others. |
| Application | 1. Construction industry2. Mechanical production, energy extraction3. Home appliance industry, refrigeration industry, transportation industry, home decoration and bathroom4. Communication technology, infrastructure, municipal pipeline network, etc. |
| Packaging | Bundle, PVC Bag, Nylon Belt, Cable Tie, Standard export seaworthy package or as Reque |
| Processing Servic | Bending, Welding, Decoiling, Punching, Cutting and Others |
| Tolerance | ±1% |
|
Standard |
ASTMB152,B187,B133,B301,B196,B441,B465,JISH3250-2006, |
|
Material |
C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, |
|
Diameter |
3mm~800mm |
|
Length |
1.0m 5.8m,6m,or as required |
|
Export to |
Singapore,India,Poland,Indonesia,Ukraine,Spain,Korea,Thailand,Canada,USA, |
|
Container Size |
20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) |
|
Price Term |
Ex-work, FOB, CFR, CIF, etc. |
|
Application |
Copper bar is widely used in boat building,War industry, Car industry and communication |
|
Package |
Standard export seaworthy package,suit for all kinds of transport,or as required. |
|
Contact |
If you have any question,please feel free to contact me. |
|
Product name |
Copper Strip / Copper tape / Copper sheets coil |
|
Shape |
strip,tape,band,coil,roll |
|
Standard |
ASTM, ISO, JIS, DIN, GB, EN |
|
Grade |
ASTM:C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, |
|
MOQ |
300KG |
|
Temper |
1/4 hard,1/2hard,full hard,soft,etc |
|
Surface |
Mill finish, polished, anodizing, brushing, sand blasting, powder coating,etc |
|
Payment terms |
T/T,L/C,western union, Paypal |
|
Price terms |
CIF,CFR,FOB,CIF,EXW,CNF |
|
Width |
0.1-1500mm or customized |
|
Thickness |
0.1-50mm or customized |
|
Package |
Standard export seaworthy package or as required. |
|
Delivery time |
About 7~10 working days after deposit received |
|
Application |
1)Further making utensil. |
|
Product Name |
Copper Wire |
|
Type |
Insulated |
|
Payment term |
TT/Trade Insurance/Credit card |
|
Delivery time |
7-30days( Depend on the quantity) |
|
Shipping terms |
FOB CIF DDP EXW |
|
Thermal Class |
130/155/180/200/220 C |
|
Diameter |
0.04mm-6.0mm |
|
Enameled Type |
Polyester/Polyurethane/Polyesterimide/Polyamide-imide |
|
Application |
Motor Transformer Fan Speaker |
|
Conductor content |
99% |
Copper CNC machined parts
|
Product Name |
Copper Wire |
|
Type |
Insulated |
|
Payment term |
TT/Trade Insurance/Credit card |
|
Delivery time |
7-30days( Depend on the quantity) |
|
Shipping terms |
FOB CIF DDP EXW |
|
Thermal Class |
130/155/180/200/220 C |
|
Diameter |
0.04mm-6.0mm |
|
Enameled Type |
Polyester/Polyurethane/Polyesterimide/Polyamide-imide |
|
Application |
Motor Transformer Fan Speaker |
|
Conductor content |
99% |

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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