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| Categories | Copper Alloy Steel Heat Exchanger Tube |
|---|---|
| Brand Name: | Yuhong |
| Model Number: | ASTM B111 CuNi 70/30 C71500 Tubes |
| Certification: | ABS, BV, DNV, CCS, LR |
| Place of Origin: | China |
| MOQ: | 1TON |
| Price: | Negotiable |
| Payment Terms: | TT, LC |
| Supply Ability: | 1000 tons/month |
| Delivery Time: | 35-60 days |
| Packaging Details: | Ply-wooden Case |
| Product: | Heat Exchanger Tubes |
| Heat Exchanger Tubes Standard: | ASTM B111 |
| Heat Exchanger Tubes Material: | C71500 CuNi 70/30 |
| Heat Exchanger Tubes Size and Length: | According to clients' need |
| Heat Exchanger Tubes Use: | Shipbuilding, Power Industry, Heat Exchange Equipment, Refrigeration Equipment,etc |
| Heat Exchanger Tubes Packing: | Ply-wooden Case |
| Company Info. |
| YUHONG HOLDING GROUP CO., LTD |
| Verified Supplier |
| View Contact Details |
| Product List |
ASTM B111 CuNi 70/30 C71500 Copper Nickel Seamless Tubes For Desalination Plants
Chemical Composition (%) max
| Grade | Copper | Nickel, incl Cobalt | Lead | Iron | Zinc | Manganese |
| C71500 | remainder | 29.0-33.0 | 0.05 | 0.4-1.0 | 1.0 | 1.0 |
Mechanical Properties
| Grade | Tensile Strength min | Yield Strength min |
| C71500 | 52ksi | 18ksi |
Why C71500 (70/30 Cu-Ni) Tubes In Desalination Plants?
ASTM B111 C71500 (70% Copper, 30% Nickel) seamless tubes are a ideal material in desalination plants, particularly in Multi-Stage Flash (MSF) and Multi-Effect Distillation (MED) systems, due to their exceptional corrosion resistance, durability, and thermal efficiency in harsh seawater environments.

Key Reasons for Using C71500 Tubes in Desalination
*Superior Corrosion Resistance in Seawater:
Resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in high-chloride environments.Forms a protective oxide layer that prevents further degradation.
*Excellent Biofouling Resistance:
Copper-nickel alloys naturally inhibit marine growth, reducing fouling and maintenance costs.
*High Thermal Conductivity:
Efficient heat transfer in condensers, heat exchangers, and evaporators, improving desalination plant performance.Better than titanium.
*Erosion & Cavitation Resistance:
Withstands high-velocity seawater flow (up to 3–4 m/s) without significant wear.
*Long Service Life & Cost-Effectiveness:
Lasts decades in desalination applications with minimal
maintenance.
C71500 tubes are ideal for desalination plants because they offer the best balance of corrosion resistance, thermal efficiency, and cost-effectiveness in seawater environments.

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