Our CuNi 90/10 round bar is excellent resistance to seawater corrosion, good fabricability, and low macrofouling rates. That is why they are great for marine applications. We can manufacture different sizes, thicknesses, and lengths for CuNi round bar.
CuNi 90/10 also known as C70600 mainly refers to the ratio of copper content to nickel content, reaching 90:10. This ratio usually refers to the American Standard c70600 material, which is copper nickel alloy, and the corresponding domestic material is B10 material. (BFe10-1-1 / CuNi10Fe1Mn)
C70600 alloy has good seawater corrosion resistance, marine fouling resistance, excellent manufacturing and welding properties, high hydrogen brittleness resistance and good low temperature performance.
copper-nickel alloy CuNi10Fe1Mn has extensively been used as a piping material for seawater systems in shipbuilding, offshore, and desalination industries. Attractive characteristics of this alloy combine excellent resistance to uniform corrosion, remarkable resistance to localised corrosion in chlorinated seawater, and higher erosion resistance than other copper alloys and steel. Furthermore, CuNi10Fe1Mn is resistant to biofouling providing various economic benefit.
Standard Specification for Copper-Nickel-Zinc Alloy (Nickel Silver) and Copper-Nickel Rod and Bar
Cupro Nickel Round Bar Specification : ASTM B111 / A479, ASME SB111 / A479
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
Thickness : 50 mm to 6000 mm Long
Length : 1 To 6 Meters, Custom Cut Length
Form : Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc.
How to order our cuni 90/10 round bar?
Comparison of chemical composition between various specifications for cupronickel 90/10 used as tubing material
| Standard | DIN/EN | ASTM | ISO | EEMUA | KME |
|---|---|---|---|---|---|
| Designation | CuNi10Fe1Mn | CuNi10Fe1Mn | CuNi10 Fe1,6Mn | ||
| Ref. No. | 2.0872/CW352H | UNS C70600 | UNS 7060X | ||
| Copper | Rem. | Rem. | Rem. | Rem. | Rem. |
| Nickel | 9.0-11.0 | 9.0-11.0 | 9.0-11.0 | 10.0-11.0 | 10.0-11.0 |
| Iron | 1.0-2.0 | 1.0-1.8 | 1.0-2.0 | 1.5-2.00 | 1.50-1.8 |
| Manganese | 0.5-1.0 | 1.0 | 0.5-1.0 | 0.5-1.0 | 0.6-1.0 |
| Tin | 0.03 | – | 0.03 | – | 0.03 |
| Carbon | 0.05 | 0.05 | 0.05 | 0.05 | 0.02 |
| Lead | 0.02 | 0.02 | 0.02 | 0.01 | 0.01 |
| Phosphorus | 0.02 | 0.2 | 0.02 | 0.02 | 0.02 |
| Sulphur | 0.05 | 0.02 | 0.02 | 0.02 | 0.005 |
| Zinc | 0.05 | 0.5 | 0.5 | 0.2 | 0.05 |
| Cobalt | 0.1 | – | 0.05 | – | 0.1 |
| Impurities | 0.2 | – | 0.1 | 0.3 | 0.02 |
Chemical Composition of Cupro Nickel 90/10 Round Bar
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cupro Nickel 90/10 | 88.6 | 1.0 max | 0.05 max | 9 – 11 max | 1.8 max | 1 max |
Mechanical Properties Of Copper Nickel 90/10 Round Bar
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
copper Nickel 90/10 Round Bar Equivalent Grades
| STANDARD | UNS | WNR. | EN | AFNOR |
| Cupro Nickel 90/10 | C70600 | 2.0872 | NiCr20CuMo | Z2NCUD31-20AZ |
Standards & Specifications:
| Standard | Specification |
|---|---|
| ASTM | ASTM B151 / B111 |
| ASME | ASME SB151 / SB111 |
| EN | EN 12163 / EN 12167 |
| DIN | DIN 17664 |
Applications of CuNi 90/10 Round Bar:
Marine & Offshore Industry – Used in shipbuilding, hulls, and piping.
Desalination Plants – Ideal for seawater and brackish water applications.
Heat Exchangers & Condensers – Ensures efficient heat transfer.
Oil & Gas Industry – Subsea piping and offshore structural components.
Chemical & Power Plants – Corrosion-resistant material for extreme conditions.
Why chose Our CuNi 90/10 Round Bars
Superior Corrosion Resistance – Ideal for harsh marine environments.
High Strength & Durability – Withstands extreme temperatures and pressures.
Biofouling & Erosion Resistant – Prevents marine growth on surfaces.
Custom Precision Machining – Available in various sizes & finishes.
Copper products that GNEE can provide
|
Product Name |
Straight Copper Pipe/Pancake Coil Copper Pipe/Capillary copper pipe |
|
Material |
C10100,C10200,C12000,C12200,C11000,T1,T2,T3,TP2,TU1,TU2,TU3,H62, H65,H70,etc |
|
Standard |
ASTM B280,ASTM B68,ASTM B75,ASTM B88 JIS H3300 EN12735,AS1571 |
|
Shape Type |
Straight Round,Square,Rectangular,Coil,Oval,Half-Round |
|
Wall Thickness |
0.2-3mm |
|
Out Diameter |
3mm-100mm |
|
Length |
1M-6M or As your demand (Pancake copper tube usual length: 15 meters) |
|
Cu |
High Purity 99.9% Copper |
|
Temper |
Soft(M),Half Soft(M2) and Half Hard(Y2) |
|
Surface Treatment |
Bright and Clean |
|
Package Type |
Plastic Film With Plastic Caps on the both ends and Wooden Case Carton Package or as your demand |
|
Application |
Refrigerator,Condenser and Heat Exchange,Decoration,Water Tube,Precision Equipment etc |
|
Item |
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 |
||
|
Application |
A copper rod is a type of colored metal processing bar stock with high electrical conductivity. It is mainly divided into brass |
||
|
Contact |
If any requirement please feel free to inform me at any time. |
||
|
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 |
||
|
Export to |
Ireland,Singapore,Indonesia,Ukraine,Saudi Arabia,Spain,Canada,USA, |
||
|
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 rail. |
||
|
Shape |
Round, Square, Oval, can be customized |
||
|
Model Number |
C11000, C10200, C12000, C12200 C26800 C27000 C35000 C38000 etc. |
||
|
Color |
Red Cppper , Brass |
||
|
Hardness |
1/16 hard, 1/8 hard, 3/8 hard, 1/4 hard, 1/2hard, full hard, soft, etc |
||
|
Diameter |
0.10mm-5.00mm |
||
|
Insulation Material |
Enameled |
||
|
Certification |
ISO9001 |
||
|
Advantages |
High conductivity,Good solderability,High ductility |
||
|
Coating |
Double Layer or customized |
||
|
Packing |
Standard export package or seaworthy Package |
||
|
Application |
1. Pancake Coil for ACR, General Engineering Applications |
||
copper CNC machined parts
|
Precision of piece: |
+/-0.01mm |
||
|
Roughness of piece: |
Ra≤0.1 |
||
|
Quality standard: |
DIN, ASTM, GOST, GB, JIS, ANSI, BS; |
||
|
Drawing format: |
JPEG,PDF,AI,PSD,DWG,DXF,IGS,STEP; |
||
|
Products certification: |
ISO9001:2008, CE, RoHS, SGS; |
||
|
Dimension: |
Dia.500mm or 850mm width |
||
|
Available materials |
Steel: carbon steel, alloy steel, stainless steel, 4140,20#,45# ,40Cr,20Cr ,etc |
||
|
Aluminum: AL6061,AL6063,AL6082,AL7075,AL5052 etc. |
|||
|
Stainless steel: 201SS,301SS,304SS,316SS etc. |
|||
|
Brass: C37700,C28000, C11000,C36000 etc |
|||
|
Plastics: PTFE,PEEK,POM,PA,UHMW, NYLON |
|||
|
Surface treatment: |
Steel parts |
Stainless steel parts |
Aluminum parts |
|
Galvanization |
Polishing |
anodized |
|
|
Black oxidation |
Passivation |
Sandblast anodized |
|
|
Nickel plating |
Laser engraving |
Colorful anodized |
|
|
Chrome plating |
Sand blast |
Brushed |
|
|
Heat treatment |
|
Polishing |
|
|
Powder coated |
|
Chrome plating |
|
Why choose us?
Since our establishment in 2008, our company has specialized in the production and export of copper products. We utilize advanced production lines and a comprehensive quality control system. From raw materials to finished products, every step is rigorously inspected using precision instruments (such as spectrometers, metallographic microscopes, and conductivity testers) to ensure that our products meet international standards for composition, dimensions, and performance. We are committed to providing high-quality, high-precision copper products and reliable service to our global customers.
Email:sales@gneesteel.com
active members
years experience
Square Meters Built
Cooperating Partner
