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Polished CuNi 70/30 Copper Nickel Bar High Temp Resistant C71500

  • Polished CuNi 70/30 Copper Nickel Bar High Temp Resistant C71500
  • Polished CuNi 70/30 Copper Nickel Bar High Temp Resistant C71500
  • Polished CuNi 70/30 Copper Nickel Bar High Temp Resistant C71500
  • Polished CuNi 70/30 Copper Nickel Bar High Temp Resistant C71500
  • Polished CuNi 70/30 Copper Nickel Bar High Temp Resistant C71500
Place of Origin Shanghai,China
Brand Name TOBO
Certification ISO/TUV/SGS
Model Number Copper Nickel Bar
Minimum Order Quantity 1PC
Price Negotiable
Packaging Details Standard Shipping Package
Delivery Time 15-30 Workdays
Payment Terms T/T, Western Union
Supply Ability 10 Ton/Month
Product Details
Product Name Polished CuNi 70/30 Copper Nickel Bar High Temp Resistant C71500 Tensile Strength 490 N/mm2 (min)
Process Seamless / Cold Drawn Technics Forged
Nickel Content 10% - 30% Thermal Conductivity 30 - 40 W/m·K
Yield Strength 275 N/mm2 (min) Specification UNS C70600 (Cu-Ni 90/10)
Diameter 1/4 Inch Length Range 500mm - 6000mm
Material Grade Cu-Ni 90/10 Magnetic Properties Non-magnetic
Weight 10 Lbs Elongation 15%
Form Bar, Rod, Wire Diameter Range 5mm - 200mm
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Product Description

Polished CuNi 70/30 Copper Nickel Bar High Temp Resistant C71500

 

1.Product Description

Copper nickel bar is a solid rod material based on copper with nickel as the main alloying element. Common grades by nickel content include CuNi8 (~8% Ni), CuNi10 (~10% Ni), CuNi14 (~14% Ni), CuNi19 (~19% Ni), CuNi30 (~30% Ni), as well as ASTM grades C70600 (90/10 cupronickel) and C71500 (70/30 cupronickel). The bars are produced via vacuum melting, hot extrusion, multiple‑pass cold drawing, straightening and polishing, offering precise dimensional tolerances and a surface free from scale, cracks or folds. Applicable standards include ASTM B151/B151M, EN 12163, GB/T 4423, and JB/T 4755

 

2.Product Applications

Thanks to their excellent overall performance, copper nickel bars are widely applied in:

  • Marine and offshore structures:Seawater circulation piping, valve stems, heat exchanger tube sheets, propeller shaft sleeves, submarine cable sheaths, offshore platform fasteners.

  • Petrochemical industry:Acid‑resistant pump shafts, reactor agitators, evaporator heating tubes, tank inner lining strips.

  • Electric power:Resistance elements in high‑voltage circuit breakers, shunts, transformer winding cores.

  • Automotive and machinery:Hydraulic brake hard tubes, pneumatic connectors, precision gear blanks, plain bearing bushes.

  • Instrumentation:Thermocouple sheaths, thermometer protection tubes, pressure measurement conduits.​

​3.Product Advantages

  1. Extreme corrosion resistance:Excellent resistance to both general and localized corrosion in seawater, chloride solutions, dilute sulfuric acid and alkaline media, with very low pitting and crevice corrosion tendency.

  2. High strength‑toughness balance:Higher strength than pure copper and brass, while maintaining elongation above 20%, with good impact and fatigue resistance.

  3. Erosion and cavitation resistance:Low corrosion rate even in seawater with flow velocity up to 5 m/s, and outstanding resistance to cavitation peeling.

  4. Workability:Good machinability for turning, milling, drilling and tapping; hot bending and welding (TIG, resistance welding) can be performed without special difficulties.

  5. Wide service temperature range:From -250°C to +350°C, mechanical properties change gradually without low‑temperature brittleness or high‑temperature softening.

  6. Long‑term reliability:Service life up to 30 years in marine environments, with very low maintenance costs.

​Polished CuNi 70/30 Copper Nickel Bar High Temp Resistant C71500

​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.

 

Tags:

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