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Copper Nickel 70/30 Round Bar

Copper nickel 70/30 round bar specifications

What is a copper nickel 70/30 round bar?

This bar has a chemical composition of 70% cu and 30% ni. A copper nickel 70/30 round bar also has iron and manganese. It shows brilliant resistance to corrosion, impingement, and barnacle contamination in marine applications, including seawater and polluted water.A cunifer 70/30 forged round bars may comprise aluminium, niobium, silicon, and beryllium for additional metallurgical properties.

We are a supplier of 70/30 cuni roundbar in India, and you can also inquire about the uses of cunifer 70/30 rod with us

What is a 70 30 copper nickel alloy round bar used for?

These bars deliver resistance to bio-fouling, making them useful for inhibiting microbial growth. Acopper nickel 70 30 alloy round bar has good weldability and supports fabrication. Industries like offshore drilling, chemical processing, and refrigeration benefit from these properties. A 70-30 cunifer round bars is also utilised in aeronautics, evaporators, and condensers. Applications in the marine sector range from propellers to components of pumps and flanges.


Specification of copper nickel 70/30 round bar

Specifications Size Finish
ASTM B151, ASME SB151 5mm - 500mm Bright, centreless ground, polish, rough turned, bright
Condition Thickness Types
Cold Drawn, polished, annealed 50 mm - 6000 mm Round, square, hex, rectangular, flat bar

Our commitment to maintaining a diverse stock of copper nickel alloy 70/30 square bars and Cu-Ni alloy DIN 2.0882 Rectangle Bar, combined with our expert knowledge, sets us apart as a leading provider in the industry

How does maintaining a diverse stock of cunifer 70/30 bars benefit customers?

The typical dimensions for a cunifer 70/30 bar are 1/4" to 1 3/4" in diameter. Suppliers with a vast portfolio of astm b111bars in different shapes, sizes, and finishes offer low delivery time and meet diverse requirements. For instance, buyers can order a mirror finish 70 30 cuni alloy round bar.

Types of copper nickel 70/30 rod


Copper nickel 70/30 round bar

Copper nickel 70/30 round bar

Copper 7030 nickel bright bar

Copper 7030 nickel bright bar

Cupro nickel 70/30 square bar

Cupro nickel 70/30 square bar

Copper nickel 70/30 forged bar

Copper nickel 70/30 forged bar

Each batch of cunifer 70/30 forged round bar and Cupro Nickel 70/30 Rounds is flattening tested extensively to guarantee its exceptional quality

How does flattening testing of cupro nickel 70/30 bars ensure their quality and reliability?

A flattening test checks the deformation ability of cu-ni alloy din 2.0882 flat bars, I.E., whether they handle stress without deformation. It guarantees performance and ductility. Manufacturers also perform non-destructive tests like positive material recognition and use eddy current to detect defects. A mill test certificateattests to the quality and performance of a cuni 70/30 square bar.

Chemical composition of cupro nickel 70/30 bright bar


Grade Mn Cu Pb Fe Ni Zn
70/30 1 max 65.0 min 0.5 max 0.4-1.0 29-33 1 max
Our UNS No C71500 Rod and copper nickel 70 30 alloy round bar are manufactured to exacting standards and are known for their durability and specialisation in Strenuous environments

Which industries commonly use cupro nickel hex bars manufactured to exacting standards?

Manufacturers produce a cuni 70 30 hex bar with stringent tolerance and high precision. These bars undergo welding like gas-shielded arc at temperatures between 1700 and 1900°f. Heat exchangers, condensers, aeronautics, and marine applications use a uns no c71500 rod for strict dimensional standards and tolerance of +2/-0 mm.

Mechanical properties of cuni 70-30 forged bar


Grade Melting point Density Tensilestrength Elongation Yieldstrength(0.2%Offset)
70/30 2260°F 0.323 lb/in3 at 68°F 50000 PSi 30% 20000PSi
Discover the exceptional quality of our DIN 2.0882 Square bar & Cu-Ni 70/30 Cold Drawn Bars and see the difference for yourself. Check out our price list today

What is the cost of a copper nickel 70/30 round bar?

The price of cuni 70/30 bars can be steep. The material costs around rs 400 per kilogram. However, cu-ni 70/30 cold drawn bars cost as much as rs. 720 per kilogram for widths of 10-20 mm and lengths of 6m.

Equivalent grade of cunifer 70-30 square bar


Grade UNS Werkstoff Nr.
70/30 C71500 2.0882