TOBO INDUSTRIAL (SHANGHAI) CO., LTD
| Supply Ability | 10 Ton/Month |
| Product Name | High Strength CuNi 70/30 Copper Nickel Bar Fatigue Resistant ASTM B151 |
| Payment Term | L/C T/T (30% Deposit) |
| Lengthrange | 1000mm - 6000mm |
| Standard | ASTM B111, ASTM B122 |
| Material | Brass Copper |
| Nickelcontent | 10% - 30% |
| Warranty | 1 year |
| Connection | Welding |
| Delivery Time | 15-30 Workdays |
| Dia | 3mm-800mm/custom |
| Color | Copper |
| Payment Terms | T/T, Western Union |
| Diameter | 1/4 inch |
| Magnetic Properties | Non-magnetic |
| Process | Seamless / Cold Drawn |
| Corrosion Resistance | High |
| Surface | Polished |
| Packaging Details | Standard Shipping Package |
| Head Code | Square |
| Model Number | Copper Nickel Bar |
| Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai,China |
| Brand Name | TOBO |
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Product Specification
| Supply Ability | 10 Ton/Month | Product Name | High Strength CuNi 70/30 Copper Nickel Bar Fatigue Resistant ASTM B151 |
| Payment Term | L/C T/T (30% Deposit) | Lengthrange | 1000mm - 6000mm |
| Standard | ASTM B111, ASTM B122 | Material | Brass Copper |
| Nickelcontent | 10% - 30% | Warranty | 1 year |
| Connection | Welding | Delivery Time | 15-30 Workdays |
| Dia | 3mm-800mm/custom | Color | Copper |
| Payment Terms | T/T, Western Union | Diameter | 1/4 inch |
| Magnetic Properties | Non-magnetic | Process | Seamless / Cold Drawn |
| Corrosion Resistance | High | Surface | Polished |
| Packaging Details | Standard Shipping Package | Head Code | Square |
| Model Number | Copper Nickel Bar | Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai,China | Brand Name | TOBO |
| High Light | CuNi 70/30 copper nickel bar ，Fatigue resistant copper nickel bar ，ASTM B151 copper nickel bar | ||
High Strength CuNi 70/30 Copper Nickel Bar Fatigue Resistant ASTM B151
1.Product Description
Copper nickel bar is a solid rod product based on copper with nickel as the primary alloy. Typical grades include CuNi10 (10% Ni), CuNi14 (14% Ni), C70600 (90/10 cupronickel), and C71500 (70/30 cupronickel). Manufactured via vacuum melting, hot extrusion, and precision cold drawing, the bars offer tight dimensional tolerances (down to ±0.05 mm in diameter) and a smooth, oxide-free surface. Compliant with ASTM B151, EN 12163, GB/T 4423, and other standards.
2.Product Applications
Marine engineering:Seawater cooling pipelines, pump and valve bushings, heat exchanger tube sheets, propeller shaft sleeves.
Chemical equipment:Corrosion-resistant flanges, fasteners, agitator shafts for reactors, evaporator parts.
Electrical & power:Resistance elements for low-voltage devices, thermocouple protection tubes.
Precision manufacturing:Automotive hydraulic brake tubes, precision shafts for instruments, sensor housings.
3.Product Advantages
Seawater corrosion and erosion resistance:Forms a dense passive film; corrosion rate in flowing seawater < 0.025 mm/year, with excellent cavitation resistance.
High strength and toughness:Tensile strength ≥ 480 MPa (C71500), elongation ≥ 30%, combining rigidity with impact resistance.
Excellent workability:Good hot/cold formability; easy to turn, drill, tap; stable weldability (TIG, resistance welding).
Stable resistivity and thermal conductivity:Resistivity ~0.5 μΩ·m, thermal conductivity 30–75 W/(m·K), suitable for combined heating and cooling applications.
Low-temperature toughness:Maintains good impact toughness even at -200°C, suitable for LNG and deep-sea equipment.
4.Product Specifications
| Parameter | CuNi10 | C70600 (90/10) | C71500 (70/30) |
| Nickel Content (%) | ~10 | ≥29 | 29–33 |
| Copper Content (%) | ~90 | ≥55 | ≥65 |
| Density (g/cm³) | 8.87 | 8.90 | 8.94 |
| Melting Point (°C) | 1100–1200 | ~1220 | ~1240 |
| Tensile Strength (MPa) | ≥450 | ≥510 | ≥480 (typical) |
| Yield Strength (MPa) | ≥275 | ≥260 | ≥180 |
| Elongation (%) | 20–35 | ≥30 | ~30 |
| Resistivity (μΩ·m) | 0.24 | 0.32 | 0.50 |
| Service Temperature Range (°C) | -200 ~ +300 | -200 ~ +300 | -200 ~ +350 |
FAQ
1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.
2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
TOBO INDUSTRIAL (SHANGHAI) Co., Ltd. is a professional supplier of pipeline products, located in Shanghai, with convenient transportation and beautiful environment. Dedicated to strict quality control and customer service. Our experienced staff can readily discuss your requirements to ensu... TOBO INDUSTRIAL (SHANGHAI) Co., Ltd. is a professional supplier of pipeline products, located in Shanghai, with convenient transportation and beautiful environment. Dedicated to strict quality control and customer service. Our experienced staff can readily discuss your requirements to ensu...
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