Nickel Copper Alloys

Cupro Nickel 70/30


UNS Number C71500

Cupro Nickel 70/30 is a copper nickel alloy noted for its excellent resistance to corrosion, erosion and pitting combined with a good strength, workability and weldability. It has enjoyed a long and successful history in the marine sector that has since extended to industries including offshore oil and gas, power generation, desalination and cooling plants

 

Available Forms of Cupro Nickel 70/30 at Rooplaxmi Steels:

•           Bar
•           Sheet
•           Plate
•           Pipe & Tube (welded and seamless)
•           Wire

Characteristics of Cupro Nickel 70/30:

•           Excellent corrosion and pitting resistance in marine environments
•           Good strength and toughness
•           Resistance to biofouling
•           Readily weldable and fabricated

Cupro Nickel 70/30 Chemical Composition, %:

Cu

Ni

Mn

Balance

30

1

 

Application of Cupro Nickel 70/30:

•           Desalination units
•           Hydraulic lines
•           Fish cages for aquaculture
•           Heat exchangers and condensers
•           Sea water pipework
•           Offshore fire water systems
•           Tubes for power plants and ships
•           Pumps, valves, sheathing and fittings for ship hulls

Machining and Fabrication with Cupro Nickel 70/30:

Cupro Nickel 70/30 is annealed at temperatures between 649 and 816°C (1200 and 1500°F). They have good cold working capacity. They are hot formed in an excellent manner. Cupro nickel 70/30 alloys can be welded using gas shielded arc welding, spot welding, coated metal arc welding, butt welding, seam welding, brazing, soldering and oxyacetylene welding processes. Temperatures between 927 and 1038°C (1700 and 1900°F) are suitable for forging of 70/30 copper nickel alloys. The machinability rating is 20%.

Cupro Nickel 70/30 ASTM Specification:

Pipe Smls

Pipe
Welded

Tube Smls

Tube
Welded

Sheet / Plate

Bar

B466

B608

B466

B543

B122

B122

 

Welding Wire Designations:
AWS A5.14 – Cu-Ni 70:30

 

Mechanical Properties of Cupro Nickel 70/30:
Specification Minima

Tensile Strength

350 N/mm2

Yield

(0.2 % offset) 125 N/mm2

Elongation

35 %

About  Us

  • Rooplaxmi Steels is a leading Stockholder of Nickel Alloys, Hastelloy, Inconel, Monel, Nickel Copper alloys, Titanium, Cobalt alloys, Duplex, Stainless Steel and other Nickel based alloys in the form of round bars, plate, Sheet, strip, wire, pipe, pipe fittings and flanges.


Quality  Policy

    Quality is our prime concern. We are able to maintain high quality standards through our committed personnel and sound infrastructure. We ensure that finest quality material is used for our products. For ensure the quality of each material, we are providing Materials Test Certificate along with supply. Our team of experts maintain a vigil on the quality of the products.