YUHONG HOLDING GROUP CO., LTD
| Payment Terms | T/T,L/C |
| Supply Ability | 4150 Ton Per Month |
| Delivery Time | 20-80 days |
| Packaging Details | Plywooden case with Iron Frame |
| Application | Heat Exchanger Systems |
| Heat Transfer Efficiency | High |
| Corrosion Resistance | High |
| Shape | Round |
| Testing | UT, ET, HT, PMI |
| Tube Material | C70600, C71500, C68700, C44300, C71640 |
| Material | Copper Alloy Steel |
| Length | Customized |
| Ends | PE, BE |
| Wall Thickness | Customized |
| Size | Customized |
| Pressure Resistance | High |
| Brand Name | YUHONG |
| Model Number | ASTM B111 C71500 |
| Certification | ISO 9001 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | 4150 Ton Per Month |
| Delivery Time | 20-80 days | Packaging Details | Plywooden case with Iron Frame |
| Application | Heat Exchanger Systems | Heat Transfer Efficiency | High |
| Corrosion Resistance | High | Shape | Round |
| Testing | UT, ET, HT, PMI | Tube Material | C70600, C71500, C68700, C44300, C71640 |
| Material | Copper Alloy Steel | Length | Customized |
| Ends | PE, BE | Wall Thickness | Customized |
| Size | Customized | Pressure Resistance | High |
| Brand Name | YUHONG | Model Number | ASTM B111 C71500 |
| Certification | ISO 9001 | Place of Origin | CHINA |
| High Light | Heat Exchangers Seamless Copper Alloy Tubes ，Saltwater Resistance Seamless Copper Alloy Tubes | ||
Material & Chemical Composition
C71500 (Copper-Nickel 70/30) is a high-grade alloy optimized for seawater and chemical resistance. Key components:
| Element | Cu | Ni | Fe | Mn | Impurities |
| Content | 65.0~68.0% | 29.0~32.0% | 0.4~1.0% | 0.5~1.5% | ≤0.2% |
Mechanical Properties
| Property | Value |
| Tensile Strength | ≥450 MPa |
| Yield Strength | ≥170 MPa |
| Elongation | ≥25% |
| Hardness9 | 0~130 |
Key Advantages
Unrivaled Saltwater Resistance: Withstands pitting, crevice corrosion, and biofouling in marine environments (ASTM G52 compliance).
High Thermal Conductivity: 29 W/m·K (2x higher than stainless steel), ideal for condensers and heat exchangers.
Seamless Integrity: Cold-drawn and annealed processes ensure zero defects and uniform wall thickness (±3%).
Long-Term Durability: Service life exceeding 25 years in seawater applications.
Applications
✅ Marine Condensers & Heat Exchangers
✅ Desalination Plant Pipelines
✅ Offshore Oil & Gas Cooling Systems
✅ Chemical Processing Equipment
FAQ
Q: What is the maximum operating temperature?
A: Up to 400°C (752°F) in non-oxidizing environments.
Q: Do you offer customized bending or flaring?
A: Yes, we provide precision bending (radius ≥2x OD) and flaring services with tight tolerances (±0.1mm).
Q: What certifications do you provide?
A: Full ASTM B111, ASME SB111, and EN 12451 compliance with MTC and third-party inspection reports (SGS/BV).
Why Choose Yuhong Holding Group?
As a global leader in thermal solutions, we combine 55 production lines, 20,000㎡ facility, and 110+ skilled technicians to deliver:
End-to-End Expertise: From raw material procurement to advanced cold-drawn processing and surface treatment.
Rigorous Quality Control: 100% ultrasonic testing and hydrostatic pressure checks (up to 30 MPa).
Fast Global Delivery: 15-day lead time for standard orders, supported by DDP, FOB, or CIF logistics.
Competitive Pricing: Bulk order discounts for projects exceeding 10 tons.
Discover more high-performance solutions at www.steelfintube.com or contact us for a tailored quote!
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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