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Copper nickel round bar manufacturer in India

Copper nickel round bar What is a copper nickel round bar?

These barscontain cu and ni in one of two standard ratios: 90-10 or 70-30. A copper nickel round bar also hasminor amounts of iron and manganese to deliver corrosion resistance. These flexible bars work excellently in marine industries

CUNI rod and copper nickel forged bar supplier in India

How are cunifer rods manufactured?

After procuring and testing the materials, manufacturers undertake controlled heating, hot rolling, and water quenching. A CU-NI tig rod supports regular welding techniques like a shielded metal arc. The rods can be plasma cut with ionized gas.


Specification of copper nickel round bar


Copper nickel round bar size Cuni flat bar size
Cupro nickel hex bar size
  • Dia: 4mm - 300mm
  • Thickness: 3mm - 12mm
  • Width: 12mm - 150mm
  • 2-100mm A/F
Cuni alloy bar ASTM Standard Cupronickel square bar size ASME SB151 copper nickel angle bar size
  • ASTM B151 /ASME SB151
  • Sizes: 8mm - 120mm
  • 3*20*20~12*100*100
ASTM B151 copper nickel rounds melting point CU NI alloy shaft density Copper nickel metal billet temperature range
  • 1170-1240°C
  • 0.323 lb/in³
  • 927°C - 1038°C
Cupronickel round bar grades Hardness range of cupro nickel metal cold finished round bar Cupro-nickel metal rod shape
  • 80-120 HB
  • Hollow
  • Hexagonal
  • Square
  • Round
  • Rectangular
 

Cupro nickel metal rounds HS code


Material HS code
cupro nickel metal rounds 7407

We supply cupronickel bar to meet the rising demand in offshore oil and gas production

What are the advantages of using cuni rods over other materials in terms of performance, cost, and availability?

The high operating temperatures and impingement resistance are desirable traits of a cunifer rod. These anti-microbial rods suit sanitary settings, heat exchangers, and condensers. However, a cuni tig rod is costlier than options like stainless steel. The availability of ni – lower than iron – is a prime reason.

We delivered cuni rod in Vietnam, South Korea, Japan and Sri Lanka within 7 to 10 days

We are high quality copper nickel round bar manufacturer in India

Types of cuni rod


Copper nickel alloys annealed bar

Copper nickel alloys annealed bar

Cupronickel hot rolled bars

Cupronickel hot rolled bars

Cupro nickel metal square bar

Cupro nickel metal square bar

Cupro Nickel forged bar

Cupro Nickel forged bar

Cuni alloy bright bar

Cuni alloy bright bar

Cupro nickel alloy rounds

Cupro nickel alloy rounds

Cu-Ni polished bar

Cu-Ni polished bar

ASME SB151 copper nickel cold drawn bar

ASME SB151 copper nickel cold drawn bar

Cupronickel hot rolled bars

Cupronickel hot rolled bars

Size chart of ASME SB151 copper nickel polished bar


Type Cold Drawn and Ground Cold Drawn and Polish Peeled and Ground Peeled and Polished
Sizes (Inches) 5/6″ – 2.50″ 1/8″ – 3.00″ 3/4″ – 2.00″ 1.50″ – 6.00″
Sizes (mm) 10.00 – 75.00 3.00 – 75.00 20.00 – 50.00 40.00 – 150.00
ISO Tolerance h8-h9-h10-h11 h8-h9-h10-h11 h9-h10-h11 h11, h11-DIN 1013

Copper nickel alloy round bar weight calculation formula


Copper nickel alloy round bar weight calculation formula

Our cuni bright bar and copper nickel brazing rods undergo a PMI test, from raw materials to final product, to ensure their quality and performance

How is pmi testing performed on cuni brazing rods?

Quality testing assesses the quality of CUNI brazing rods. These products work in acetylene-based welding, enduring extreme temperatures.Non-destructive pmi testing (positive material identification) verifies the chemical composition of a cuni welding rod. The customary techniques are x-ray fluorescence and optical emission spectroscopy. The former scans the cuni filler rod with an analyser. The latter is better at identifying carbon and other light elements. After the analysis, manufacturers tabulate, certify, and interpret the results.

Manufacturers perform further tests on acu-ni round barto evaluate resistance to intergranular corrosion, flattening, tensile strength, etc.

Chemical composition of cupro nickel bright bar


Grade Mn Cu Pb Fe Ni Zn
90/10 1.0 max 88.6 min 0.5 max 1.8 max 9-11 max 1 max
70/30 1 max 65.0 min 0.5 max 0.4-1.0 29-33 1 max
Our copper nickel welding rod is widely used in the marine and chemical industries. See how our cuni tig rod combines strength and corrosion resistance

What are the maintenance and care requirements for cuni round bars to maintain their performance in marine and chemical environments over time?

These bars tolerate marine environments and high water speeds. A c70600 round bar requires periodic cleaning and maintenance. Clients may use detergent, emulsion, jetting, etc., to remove oil, grease, and contamination from a cupro nickel bright bar.

Mechanical properties of cuni forged bar


Grade Melting point Density Tensilestrength Elongation Yieldstrength(0.2%Offset)
90/10 2260°F 8.8g/cm3 50000 PSi 30% 20000PSi
70/30 2260°F 0.323 lb/in3 at 68°F 50000 PSi 30% 20000PSi
Interested in our copper nickel filler rod's properties and applications? Learn more about why copper nickel alloy square bar are a reliable option

What are the properties and applications of a copper nickel round bar?

It shows favourable thermal properties, making it beneficial for refrigeration and cooling. A cuni round barhas a tensile rating of 50,000 psi.Heat exchangers, condensers, etc., also use these products. A cunifer square bar boasts good corrosion resistance for propeller sleeves, pump parts, cooling, and marine hardware.

Equivalent grade of cunifer square bar


Grade UNS Werkstoff Nr.
90/10 C70600 2.0872
70/30 C71500 2.0882

Surface finishes of cunifer bar

Bright drawn Slit rolled edge
Cold drawn Polished
Peeled and turned Rough turned/peeled
Centreless ground Hot finished
Cold finished Hot rolled annealed and pickled
Smooth turned Peeled and reeled

Cupro nickel metal hex bar applications


Cupro nickel metal hex bar applications
 

Dimensions of cuni alloy bar stock

Round Rod D mm 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105
Theoretical weight Kg/m 0.7 1.58 2.8 4.39 6.32 8.6 11.2 14.2 17.55 21.2 25.3 29.7 34.4 39.4 44.9 50.7 56.9 63.1 69.87 77.03
Hexagonal Bar H mm 12 14 17 19 22 24 27 30 32 36 37 38 40 41 42 46 50 55 60 65
Theoretical weight Kg/m 1.11 1.51 2.27 2.78 3.73 4.43 5.64 6.97 7.92 9.96 10.77 11.13 12.35 12.98 13.59 16.3 19.36 23.4 27.9 32.6
Square Bar C mm 10 x 10 20 x 20 30 x 30 40 x 40 50 x 50 60 x 60 70 x 70 80 x 80 90 x 90 100 x 100                    
Theoretical weight Kg/m 0.9 3.57 8.05 14.26 22.35 32.25 43.8 57.16 72.44 89.5
Flat Bar L x I mm 20 x 10 30 x 10 40 x 10 40 x 20 45 x 30 50 x 20 60 x 20 60 x 30 60 x 40 80 x 20 80 x 40 90 x 30 90 x 60 100 x 50 100 x 70 120 x 30 120 x 40 120 x 60 120 x 80  
Theoretical weight Kg/m 1.7 2.67 3.57 7.13 12.05 8.9 10.75 16.13 21.9 14.3 28.57 24.15 48.3 44.75 62.45 32.12 42.82 64.23 85.65