Cupro Nickel 80/20 bars (also referred to as CuNi 80/20) are an alloy composed of 80% copper (Cu) and 20% nickel (Ni). They are known for their exceptional corrosion resistance, excellent thermal and electrical conductivity as well as outstanding mechanical properties, specifically resistance against seawater corrosion and biofouling, making this material well suited for marine use.
One of the key characteristics of Cupro Nickel 80/20 bars is their resistance to corrosion in marine environments, making them perfect for use in marine engineering projects, including ship hull design and desalination plants. Furthermore, their resistance to biofouling ensures minimal accumulation of marine organisms on surfaces thus decreasing maintenance requirements and increasing operational efficiencies.
CuNi 80/20 bars stand out with their excellent thermal conductivity, making them highly suitable for heat exchanger applications that depend on efficient heat transfer. CuNi 80/20 bars can often be found being manufactured into heat exchanger components like tubes, shells and plates that serve petrochemical companies and power generation industries alike.
Cupro Nickel 80/20 bars boast exceptional electrical conductivity, making them highly valued components in electrical and electronics applications. Common applications for these bars are electrical connectors, circuit breakers and switchgear components where reliable conductivity is crucial to optimal performance and safety.
CuNi 80/20 bars boast excellent mechanical properties beyond corrosion resistance, thermal conductivity and electrical conductivity, their excellent ductility and tensile strength enable them to withstand mechanical stress without deforming irreparably; making them suitable for various structural applications, including pipe systems, heat exchanger frames and pressure vessels.
Apple Steels stands as one of the premier suppliers and manufacturers of Copper Nickel 80/20 Bars in Mumbai, India. We pride ourselves on offering top-tier quality products catering to diverse industrial requirements, our commitment to precision engineering ensures reliability and durability with each bar produced, our customer service aims at surpassing customer expectations, while our timely deliveries of quality solutions earn us trust nationwide.
Standards : | ASTM B151 / ASME SB151 |
Dimensions : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
Wire : | Thickness starting from 0.05mm |
Round bar size : | Diameter: 3-~800mm |
Hex Bar size : | 2-100mm A/F |
Flat bar size : | Thickness: 2 -100mm / Width: 10 to 500mm |
Square bar size : | 4 to 100mm |
Rectangular Bars Size : | 33 x 30mm to 295 x 1066mm |
Hollow Bar : | 32mm OD x 16mm ID to 250mm OD x 200mm ID |
Tolerance : | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
Finish : | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
ELEMENT | PERCENT | ||
NOMINAL | MINIMUM | MAXIMUM | |
Copper | – | 74.0 | – |
Lead | – | – | .05 |
Iron | – | – | 1.0 |
Zinc | – | – | 1.0 |
Nickel (including Cobalt) | 21.0 | 19.0 | 23.0 |
Manganese | – | – | 1.0 |
DESIGNATION | TENSILE STRENGTH |
YIELD STRENGTH |
% |
|||
STD | FORMER | KSI* nominal |
MPa** nominal |
KSI* | MPa** | |
– | Annealed (A) | 48 | 330 | 18 | 124 | 45 |
H01 | Quarter Hard (1/4H) | 55-62 | 380-495 | 65 | 448 | 7.5 |
H02 | Half Hard (1/2H) | 67-83 | 460-570 | 73 | 503 | 5.5 |
H04 | Hard (H) | 77-92 | 530-635 | 82 | 505 | 5 |
H08 |
Spring |
90 min 88 min |
620 min 605 min |
855 | 586 | 5 |
H14 | Extra Spring .020 to .040 | 100-115 | 690-790 | 90 | 620 | 3 |
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