YUHONG HOLDING GROUP CO., LTD
| Specification | ASME SB111 |
| Product Name | Seamless Copper Nickle Alloy Steel Tube |
| Surface | Bright Annealed / Polished |
| Application | Heat exchangers, Piping, Seawater treatment |
| Material | C71500 |
| Payment Terms | L/C,T/T |
| Supply Ability | Accdording to customer's request |
| Delivery Time | 15-20 work days |
| Packaging Details | Ply-Wooden Case /Iron Case/ Bundle with Plastic Cap |
| Type | Seamless |
| Brand Name | YUHONG |
| Model Number | ASME SB111 C71500 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | China |
View Detail Information
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Product Specification
| Specification | ASME SB111 | Product Name | Seamless Copper Nickle Alloy Steel Tube |
| Surface | Bright Annealed / Polished | Application | Heat exchangers, Piping, Seawater treatment |
| Material | C71500 | Payment Terms | L/C,T/T |
| Supply Ability | Accdording to customer's request | Delivery Time | 15-20 work days |
| Packaging Details | Ply-Wooden Case /Iron Case/ Bundle with Plastic Cap | Type | Seamless |
| Brand Name | YUHONG | Model Number | ASME SB111 C71500 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | China |
| High Light | ASME SB111 C71500 copper-nickel alloy tube ，70-30 copper-nickel seawater corrosion resistant tube ，seamless copper alloy heat exchanger tube | ||
ASME SB111 C71500 SMLS 70-30 Copper-Nickel Alloy Steel Tube, Seawater Corrosion Resistance
ASME SB111 C71500 is a seamless 70-30 copper-nickel alloy tube renowned for its superior seawater corrosion resistance. The addition of nickel and iron enables the formation of a dense, stable protective surface film, effectively resisting pitting, impingement attack, and biofouling. Designed for harsh marine environments, it is the ideal choice for heat exchanger tubing in ship condensers, power plant cooling systems, and desalination plants.
1.Chemical & Mechanical Properties
| ASME SB111 C71500 Chemical Composition (%) | |||||
| Cu | Ni | Pb | Fe | Zn | Mn |
| Rem | 29.0%-33.0% | ≤0.05% | 0.4%-1.0% | ≤1.0% | ≤1.0% |
Mechanical Properties
| Code |
Name
|
Tensile Strength
min ksi
|
Yield Strength
min ksi
|
Elongation
in 2 in.,min %
|
|
O61
|
annealed
|
52 | 18 | |
|
HR50 Wall thicknesses up to 0.048 in., incl
|
drawn and stress-relieved
|
72 | 50 | 12 |
|
HR50
Wall thicknesses over 0.048 in.
|
drawn and stress-relieved
|
72 | 50 | 15 |
Physical properties
| Thermal Conductivity | Coefficient of Thermal Expansion | Modulus of Elasticity | Density |
| ~29 W/m·K | 16.2 x 10⁻⁶ /K | ~156 GPa | 8.94 g/cm³ |
2. Key Adventages
Exhibits excellent resistance to corrosion in seawater and brackish water, effectively resisting pitting, crevice corrosion, and stress corrosion cracking.
The alloy surface inhibits the attachment and growth of marine organisms (such as barnacles, algae), reducing maintenance costs and maintaining heat exchange efficiency.
Possesses high strength, good toughness, and ductility, making it easy for fabrication processes such as bending, welding, and forming.
Capable of providing decades of reliable, trouble-free service life under correct operating conditions.
3. Key Applications
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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