Yuhong Group Co.,Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 800 Tons/ Month |
| Delivery Time | 15-20 Days |
| Packaging Details | Ply-wooden Case /Iron Case |
| Standard | ASTM B111 / ASME SB111 |
| Material Grade | C71640 (UNS C71640) |
| Product Type | Seamless Condenser Tube |
| Primary Application | Surface Condensers, Evaporators, Heat Exchangers |
| Size Range | Customized |
| Material | Copper-Nickel-Iron-Manganese Alloy (CuNi30Fe) |
| Brand Name | YUHONG |
| Model Number | ASTM B111 C71640 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 800 Tons/ Month |
| Delivery Time | 15-20 Days | Packaging Details | Ply-wooden Case /Iron Case |
| Standard | ASTM B111 / ASME SB111 | Material Grade | C71640 (UNS C71640) |
| Product Type | Seamless Condenser Tube | Primary Application | Surface Condensers, Evaporators, Heat Exchangers |
| Size Range | Customized | Material | Copper-Nickel-Iron-Manganese Alloy (CuNi30Fe) |
| Brand Name | YUHONG | Model Number | ASTM B111 C71640 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | CHINA |
| High Light | ASTM B111 seamless copper-nickel tube ，CuNi30Fe alloy marine condenser tube ，heat exchanger copper alloy tube | ||
ASTM B111 C71640 Seamless Copper-Nickel Tube - CuNi30Fe Alloy for Marine Condensers & Heat Exchangers
YUHONG Group, with over 35 years of industrial expertise and a global supply network serving 85 countries, specializes in high-performance non-ferrous alloy tubing solutions. Our ASTM B111 C71640 Copper-Nickel Seamless Tubes are manufactured to meet rigorous international standards for critical applications in marine condensers, heat exchangers, and evaporators. We ensure full traceability, stringent quality control, and reliable performance for demanding service conditions worldwide.
Chemical Composition Requirements (C71640)
| Element | Composition (%) |
| Copper (Cu) + Silver (Ag) | Remainder |
| Nickel (Ni) + Cobalt (Co) | 29.0 - 32.0 |
| Iron (Fe) | 1.7 - 2.3 |
| Manganese (Mn) | 1.5 - 2.5 |
| Carbon (C), max | 0.06 |
| Sulfur (S), max | 0.03 |
| Temper | Tensile Strength, min | Yield Strength, min (0.5% extension) |
| O61 (Annealed) | 63 ksi (435 MPa) | 25 ksi (170 MPa) |
| HR50 (Drawn & Stress-Relieved) | 81 ksi (560 MPa) | 58 ksi (400 MPa) |
Standard Test Requirements
| Test Type | Requirement |
| Expansion Test | 30% of outside diameter (per Table 4) |
| Hydrostatic Test | Maximum pressure 1000 psi (7 MPa) unless specified |
| Eddy Current Test | Mandatory for quality assurance |
| Grain Size (Annealed) | 0.010-0.045 mm |
Key Product Advantages
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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