Ninthore Overseas is one of the Leading Manufacturer And Exporter Of High Quality Cupro Nickel 70 Pipes, which are available in varied sizes, dimensions, lengths and specifications in order to suit the specific requirements of our esteemed clients. These Cu-Ni 70 / 30 Seamless Pipes (UNS C71500) is a copper nickel alloy with excellent resistance to corrosion and erosion. Our Cupro Nickel 70 / 30 Welded Pipes are a 70 % copper, 30 % nickel alloy with additions of iron and manganese. The main, wrought Copper Nickel 70 / 30 EFW Pipes chosen for sea water service contain 30 percent nickel.

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Cupro Nickel 70 Pipes

Cupro Nickel 70 Pipes

Our Cu-Ni 70 / 30 ERW Pipes is known for its moderate strength, workability, formability and weldability. Meanwhile, these Cupro Nickel 70 / 30 Round Pipes are also being offered in different sizes and shapes to our customers. Ninthore Overseas is a known manufacturer and exporter of our Copper Nickel 70 / 30 Square Pipes, which have good cold working capacity. Forging, Temperatures between 927 Degree C and 1038 Degree C (1700 Degree F and 1900 Degree F) are suitable for these Cu-Ni 70 / 30 Rectangular Pipes.

In shipbuilding and repair, our Cupro Nickel 70 / 30 Electropolish Pipes are used in seawater cooling, bilge and ballast, sanitary, firefighting, inert gas, hydraulic and pneumatic chiller systems. In many engineering situations, systems of these Copper Nickel 70 / 30 Hexagonal Pipes have cast valves and pumps in nickel aluminum bronze.

Cupro Nickel 70/30 Seamless Pipes Specifications
Specifications : ASTM B 466 ASME SB 466 / ASTM B 467 ASME SB 467
Dimensions : ASTM, ASME and API
Size : 1/2″ TO 6′ IN OD & NB IN Various SWG & SCH
Specialized in : Large Diameter Size
Type : Seamless / ERW / Welded / Fabricated
Form : Round, Hydraulic Etc
Length : Single Random, Double Random & Cut Length.
End : Plain End, Beveled End, Treaded
70/30 Cupro Nickel Cu Pipes Chemical Composition
Cu-Ni 70/30 Cu Pb Mn Fe Zn Ni
65.0 min 0.05 max 1.0 max 0.4-1.0 1 max 29 – 33
Cupro Nickel Cu 70/30 Pipe Mechanical Properties
Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
0.323 lb/in3 at 68 F 2260 F 20000 psi 50000 psi 30 %
Equivalent Grades for 70/30 Cupro Nickel Pipe
Cupro Nickel 70/30 C71500 2.0882
Cupro Nickel 70/30 Seamless / Welded Pipes Application Industries
  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
70/30 Cupro Nickel Pipes Test Certificates

We at Ninthore Overseas provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.

• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc

Material Testing

We at Ninthore Overseas ensure that all our materials go through strict quality tests before dispatching them to our clients.

• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and Macro Test
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test


• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)