YUHONG HOLDING GROUP CO., LTD
| Payment Terms | T/T, L/C AT SIGHT |
| Supply Ability | According to Clients' requirements |
| Delivery Time | 35-60 Days (Depend on Customer's Requirements) |
| Packaging Details | Ply-wooden Cases with Plastic Caps on Tube's Both Ends |
| Product Name | Copper Nickle 90/10 Seamless Tube |
| Tube Specification | ASTM B111 |
| Tube material | C70600 |
| Tube's OD and WT | Accorfing to Customer |
| Tube's End | Plain end |
| Tube's length | Depend on Customer |
| Application | Condensers and Heat Exchangers;Power Plant Condensers; Cooling Systems; Heat Transfer Equipment |
| General Test or Inspection | ET, HT, PMI, Flattening Test...(acc to customer) |
| Brand Name | YuHong |
| Model Number | ASTM B111 C70600 Copper Nickle 90/10 Seamless Tube |
| Certification | ISO, ABS, BV, ISO, ASTM, SGS |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C AT SIGHT | Supply Ability | According to Clients' requirements |
| Delivery Time | 35-60 Days (Depend on Customer's Requirements) | Packaging Details | Ply-wooden Cases with Plastic Caps on Tube's Both Ends |
| Product Name | Copper Nickle 90/10 Seamless Tube | Tube Specification | ASTM B111 |
| Tube material | C70600 | Tube's OD and WT | Accorfing to Customer |
| Tube's End | Plain end | Tube's length | Depend on Customer |
| Application | Condensers and Heat Exchangers;Power Plant Condensers; Cooling Systems; Heat Transfer Equipment | General Test or Inspection | ET, HT, PMI, Flattening Test...(acc to customer) |
| Brand Name | YuHong | Model Number | ASTM B111 C70600 Copper Nickle 90/10 Seamless Tube |
| Certification | ISO, ABS, BV, ISO, ASTM, SGS | Place of Origin | China |
ASTM B111 C70600 Copper Nickle 90/10 Seamless Tube For Heat Exchanger and Condenser
ASTM B111 C70600 Copper Nickel 90/10 Seamless Tube is a type of tube material that is made from a copper-nickel alloy. This particular alloy consists of approximately 90% copper and 10% nickel, hence the designation "90/10." The ASTM B111 specification establishes the requirements for this type of seamless tube, which is commonly used in heat exchangers, condensers, and similar applications in marine environments where corrosion resistance is critical.
The addition of nickel to the copper improves the strength and corrosion resistance of the material, making it particularly suitable for use in saltwater environments. The 90/10 copper-nickel alloy is known for its durability, thermal stability, and excellent resistance to biofouling in seawater.
Key Features of ASTM B111 C70600:
1. Material Composition:
Chemical Composition (ASTM B111 C70600)
| Element | Composition (% by Weight, max unless specified) |
| Copper (Cu) | Remainder (Balance) |
| Nickel (Ni) | 9.0 - 11.0 |
| Iron (Fe) | 1.0 - 1.8 |
| Manganese (Mn) | 0.5 - 1.0 |
| Lead (Pb) | 0.05 max |
| Zinc (Zn) | 1.0 max |
| Carbon (C) | 0.05 max |
| Phosphorus (P) | 0.02 max |
| Sulfur (S) | 0.02 max |
| Others (Total) | 0.5 max |
Notes:
Small amounts of Fe & Mn enhance corrosion resistance in seawater.
Low Pb, S, P ensure weldability & formability.
2. Mechanical Properties (ASTM B111 C70600 Seamless Tubes)
A. Wrought (Drawn/Annealed) Tubes
| Property | Annealed (Softened) Condition | Hard-Drawn (Cold Worked) Condition |
| Tensile Strength (min) | 290 MPa (42 ksi) | 380 MPa (55 ksi) |
| Yield Strength (0.2% offset, min) | 125 MPa (18 ksi) | 275 MPa (40 ksi) |
| Elongation (min, % in 50mm) | 30% | 15% |
| Hardness (Rockwell B, max) | 65 HRB | 85 HRB |
B. Other Key Properties
3. Advantages:
4. Common Forms & Tempers
Annealed (O60): Soft, ductile, easy to bend/flare.
Hard-Drawn (H80): Higher strength, used for pressure applications.
Pipe: ASTM B466 (welded) / B467 (seamless)
Fittings: ASTM B366
Plate/Sheet: ASTM B171 / B552
5. Comparison Table: Key Copper Alloys vs. C70600 (90/10 Cu-Ni)
| Alloy (UNS) | Common Name | Composition | Key Properties | Main Applications |
| C70600 | 90/10 Copper-Nickel | Cu (89-91%), Ni (9-11%), Fe (1-1.8%), Mn (0.5-1%) | Excellent seawater corrosion resistance, good weldability, moderate strength | Marine heat exchangers, desalination, ship piping |
| C71500 | 70/30 Copper-Nickel | Cu (65-70%), Ni (29-33%), Fe (0.4-1%), Mn (0.5-1.5%) | Superior seawater corrosion resistance, higher strength than C70600 | Offshore oil & gas, naval condensers, chemical processing |
| C12200 | Phosphorized Copper (DHP) | Cu (99.9%), P (0.015-0.04%) | High thermal/electrical conductivity, good formability | Plumbing, HVAC, electrical wiring |
| C44300 | Admiralty Brass | Cu (70-73%), Zn (26-30%), Sn (0.9-1.2%), As (0.02-0.06%) | Good corrosion resistance in freshwater/steam, biofouling resistance | Power plant condensers, heat exchangers |
| C68700 | Aluminum Brass | Cu (76-79%), Zn (19-22%), Al (1.8-2.5%), As (0.02-0.06%) | High erosion-corrosion resistance, stronger than admiralty brass | Seawater cooling systems, heat exchangers |
6.The Applications of YuHong ASTM B111 C70600 Copper Nickel 90/10 Seamless Tube
a) Shipbuilding & Naval Systems
Condenser & Heat Exchanger Tubes – Used in marine condensers, evaporators, and coolers due to resistance to biofouling and seawater corrosion.
Seawater Piping Systems – Preferred for ballast water systems, firefighting lines, and desalination plants because it resists pitting and erosion.
Propulsion & Cooling Systems – Used in engine cooling, lubricating oil coolers, and exhaust gas scrubbers.
b) Offshore Oil & Gas
Platform Cooling Systems – Resists sulfide attack in sour gas environments.
Subsea Piping & Risers – Handles high-pressure seawater without degradation.
a) Power Plants (Nuclear, Thermal, & Coastal)
Feedwater Heaters & Condensers – Resists ammonia attack in steam systems.
Cooling Water Tubes – Used in coastal power stations where seawater cooling is required.
b) Desalination Plants
Multi-Stage Flash (MSF) & Reverse Osmosis (RO) Systems – Handles high-salinity brine without corrosion.
Heat Exchangers for Chemical Processing – Resists acidic and alkaline fluids.
Brine & Chloride Handling Systems – Used in chlor-alkali plants and saltwater refining.
Cooling Coils & Refrigeration Systems – Performs well in humid/salty environments (e.g., coastal HVAC systems).
Hydraulic & Instrumentation Tubing – Used in offshore rigs and chemical plants due to leak-proof reliability.
Heat Exchangers for OTEC (Ocean Thermal Energy Conversion) – Withstands deep-sea water pressure & corrosion.
Cooling Systems for Offshore Wind Farms – Used in subsea transformer cooling.
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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