- SMI Copper (Sunflex Metal Industries)
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Sunflex Metal is one of the largest Copper Nickel Tubes manufacturers in India, we have of sales offices in most major centres in India. Copper Nickel Alloy Tube also knowns as Cupro Nickel Tube or Cuni Tubing, it has a Tensile Strength (annealed) of 52000 psi (359 MPa) and it has a Tensile Strength (rolled-H04 for flat products/ hard drawn-H80 for tubing) of 78000 psi (538 MPa). Alloy of copper and nickel is called Copper Nickel tubing and it has very high resistance to corrosion in seawater. Though cuni finned tubing has similar corrosion resistance to that of copper, it has better fatigue strength and superior general strength. Because of its characteristics, such Cupro Nickel Seamless Tube is used in offshore fire water systems, evaporators used in power stations, cabled tubes for pneumatic lines and hydraulic lines and in cylinder cores in high-quality locks.
The Thermal Expansion Co-efficient of Copper Nickel Seamless Tubing (@20-300°C/68-572°F) is 9.00 µin/in °F (16.2 µm/m °C). Cu-Ni Tubes has an Elastic Modulus (C71500 annealed) of 22000 ksi (152 GPa). Copper nickel alloy tube chemical composition is Cu 71.25-76.5, Fe ≤ 0.20, Pb ≤0.050, Mn ≤ 1.0, Ni 23.5-26.5 and Zn ≤ 1.0. Copper Nickel Welded Tube has a Thermal Conductivity of 32.9 W/mK (0.0900 BTU in/hr.ft². °F) and it has a Rockwell B Hardness of 69. ASME SB466 Cupro Nickel Tube has superb formability, making for ease of bending and flaring. It offers trouble-free installation, longer life and it exhibits characteristics of reliability and safety. In the 19th century, jackets of bullets were coated with Copper nickel. At low temperatures, it has excellent thermal conductivity and as such it is used in a wide number of cryogenic applications. It is also used in heat exchangers, fasteners, feedwater heaters, silver-colored circulation coins, jewelry and in boat hulls.
Looking for best suppliers of Copper Nickel Seamless Tubing? Contact Sunflex Metal an ISO certified exporter of ASME SB552 Welded Cu-Ni Tubes and Cupro Nickel Spiral Finned Tube for Water Boiler in India. Sunflex Metal supply Copper Nickel C70600 (90/10) tube and C71500 (70/30) tubing. Check Cupro Nickel Seamless, Welded, Round and Square Tube Price in Mumbai.
| International specifications | ASME, SAE, MIL, QQ, ISO, BS, and JIS. |
|---|---|
| Coppernickel Tube Standards | ASTM / ASME SB 111 / 151 / 466 |
| Seamless Tube Size | 3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN |
| Welded Tube Size | 6.35 mm OD To 152 mm OD |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Wall thickness | 0.020" –0.220", (special wall thicknesses available) |
| Length | Single Random, Double Random, Standard & Cut length |
| Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Form | Round, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or ‘U’ bent Tubes, Hollow, LSAW Tubes Etc. |
| Type | Seamless, ERW, EFW, Welded, Fabricated |
| End | Plain End, Beveled End, Treaded |
| Marking | All Copper Nickel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
| Application | Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialize in | Copper Nickel Capillary Tube & Other Odd Size Copper Nickel Heat Exchanger & Condenser Tubes |
| Medical Tubes | Degreased copper round tubes for medical applications EN 13348. Sizes: Ø Outer 10 mm to Ø 64 mm |
| Test Certificate | Manufacturer Test Certificate Laboratory Test Certificate from Govt. Approved Lab. Under Third Party Inspection |
| We can also cut, thread, and groove Copper Nickel Tubes to meet your specifications | |
| Min. Gauge | 0.006" | 0.15mm | For thinner gauges contact |
|---|---|---|---|
| Max. Gauge | 0.250" | 6.35mm | For thicker gauges contact |
| Min. Width | 0.125" | 3mm | For narrower widths contact |
|---|---|---|---|
| Max. Width | 48.00" | 1,220mm |
| Wall | Sizes ( O.D.) |
|---|---|
| .010 | 1/16" , 1/8" , 3/16" |
| .020 | 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8" |
| .012 | 1/8" |
| .016 | 1/8" , 3/16" |
| .028 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2" |
| .035 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .049 | 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .065 | 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3" |
| .083 | 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3" |
| .095 | 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2" |
| .109 | 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2" |
| .120 | 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3" |
| .125 | 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4" |
| .134 | 1" |
| .250 | 3" |
| .375 | 3 1/2" |
US $4.00-$4.50 / Meter
Above is an approx price, please contact for final price of All Copper Nickel Tube grades & material.
Joining Technique | Suitability |
|---|---|
Soldering | Excellent |
Brazing | Excellent |
Oxyacetylene Welding | Fair |
Gas Shielded Arc Welding | Excellent |
Coated Metal Arc Welding | Good |
Spot Weld | Good |
Seam Weld | Good |
Butt Weld | Excellent |
Capacity for Being Cold Worked | Good |
Capacity for Being Hot Formed | Good |
Machinability Rating | 20 |
Fabrication Properties
Joining Technique | Suitability |
|---|---|
Soldering | Excellent |
Brazing | Excellent |
Oxyacetylene Welding | Good |
Gas Shielded Arc Welding | Excellent |
Coated Metal Arc Welding | Excellent |
Spot Weld | Excellent |
Seam Weld | Excellent |
Butt Weld | Excellent |
Capacity for Being Cold Worked | Good |
Capacity for Being Hot Formed | Good |
Machinability Rating | 20 |
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Copper Nickel 90/10 | 2.0872 | C70600 |
| Copper Nickel 70/30 | 2.0882 | C71500 |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Cu-Ni 90-10 | 88.6 min | 1.0 max | .05 max | 9-11 max | 1.8 max | 1 max |
| Cu-Ni 70-30 | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|---|
| Copper Nickel 90-10 / 70-30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 90-1000 psi | 30 % |
| Copper Nickel Finned Tube | Cupro Nickel Capillary Tube |
| Cu-Ni ‘U’ Shaped tubing | Cu-Ni Gas Tube |
| ASTM B466 Cupro Nickel seamless tubing | ASME SB466 Cupro Nickel Thin Wall tube |
| Copper Nickel seamless tube | Cupro Nickel Furnace Tube |
| Cuni welded tubing | Cu-Ni tubes |
| Cupro Nickel Heat Exchanger Tubes | Copper Nickel boiler tube |
| Cu-Ni Square Tube | ASTM B466 Cupro Nickel Square Tube (Radius Corners) |
| Copper Nickel Rectangle Tube | Cuni tubing |
| Cupro Nickel Seamless Tubes | Cupro Nickel Round Tube |
| ASTM B466 Cupro Nickel Welded Tubes | Cu-Ni Seamless Tubing |
| Cu-Ni Coiled Tubing | Copper Nickel Capillary Tubing |
| Cupro Nickel Aerospace tubes | Cuni High Pressure Tube |
| Copper Nickel Sighting Tube | Cupro Nickel Polish Tubes |
| Cu-Ni Elliptical and Oval Tubes | Cu-Ni Rectangular Tube |
| Cupro Nickel Condenser Tubes | ASTM B466 Cupro Nickel Aero engine tubes |
| SB466 Cupro Nickel straight tube boiler | Cupro Nickel furnace tube |
| Cuni brake tubing | Cold Drawn Seamless tube |
| Copper Nickel Extruded Seamless Tube | Cu-Ni Precision tube |
| Cu-Ni Tubing bends | Cuni Capillary tube |
| Cupro Nickel Gas Tube | Cupro Nickel Fluid Tube |
| Copper Nickel ERW Tubes | Copper Nickel EFW Tubes |
| Cu-Ni Round Tubes | Cu-Ni ERW Tubes |
| ASTM B466 Copper Nickel Tube | Copper Nickel Hydraulic tubes |
| Cupro Nickel Instrumentation Tubes | Cuni protective tubes |
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