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Curpo Nickel Tubes 95/5 & 90/10 for Marine Application, Cupro Nickel Tubes 90/10 for Heat Exchangers & Condensers, Cupro Nickel Tubes 90/10 for Automobile Industries, Cupro Nickel Rods 90/10 and 95/5, Cupro Nickel Pancake Coils Exporter Suppliers Manufacturers Mumbai India

Products

Curpo Nickel Tubes 95/5 & 90/10 for Marine Application

Curpo Nickel Tubes 95/5 & 90/10 for Marine Application, Cupro Nickel Tubes 90/10 for Heat Exchangers & Condensers, Cupro Nickel Tubes 90/10 for Automobile Industries, Cupro Nickel Rods 90/10 and 95/5, Cupro Nickel Pancake Coils Exporter Suppliers Manufacturers Mumbai IndiaThese Cupro Nickel tubes & pipes for Marine application are very important for all Industrial fields. The company has experience in these areas and is able to supply these tubes in accordance with most international standards and special customer requirements.

Classi-
fication
Class Chemical Composition (%) Related Standards
Cu Zn Pb Fe P Sn Ni Mn Al As Other ISS KS JIS ASTM BS DIN
Cu-Ni Tube 1 rem. 1.00 max 0.05 max 1.3-1.7 - - 4.8-6.2 0.3-0.8 - - IS:15
45 
CuNi5
Fe
D 5301 C7040 CuNi
95+5 
7040
B 111 
C70400
2871 
CN101
1785 
CuNi
5Fe
2 rem. 1.00 max 0.05 max 1.0-1.8 - - 9.0-11.0 1.0-max - - IS:15
45 CuNi
10Fe1
C 7060 CuNi
90:10
C 7060

70600
CN102 CuNi
10Fe
Classi-
fication
Temper Designation Cu Alloy
UNS No.
Tensile Test
Outside diameter (mm) Thickness (mm) Tensile Strength Kgf/mm2 Elongation (%) Yield Strength (kg/mm2)
Copper Nickel Tube 061 Annealed C70400 5-250mm 0.8-10 27(260) 9(85)
H55 Light Drawn C70400 5-250mm 0.8-10 28(275) - 21(205)
061 Annealed C70600 5-250mm 0.8-10 28(275) - 11(105)
H55 Light Drawn C70600 5-250mm 0.8-10 32(310) - 25(240)

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Cupro Nickel Tubes 90/10 for Heat Exchangers & Condensers
These Cupro Nickel tubes & pipes for Heat Exchangers & Condensers are very important for all Industrial fields. The company has experience in these areas and is able to supply these tubes in accordance with most international standards and special customer requirements
.....................................................................................................................................................
Cupro Nickel Tubes 90/10 for Automobile Industries

Curpo Nickel Tubes 95/5 & 90/10 for Marine Application, Cupro Nickel Tubes 90/10 for Heat Exchangers & Condensers, Cupro Nickel Tubes 90/10 for Automobile Industries, Cupro Nickel Rods 90/10 and 95/5, Cupro Nickel Pancake Coils Exporter Suppliers Manufacturers Mumbai IndiaThe Move To Copper-Nickel Tubing 
Copper had been proved since the early days to have many good attributes. It was easy to bend and had very high corrosion resistance, but there was concern about its low corrosion-fatigue strength. When copper-nickel was introduced, it displayed corrosion resistance similar to copper, higher general strength and better fatigue strength. Good formability allows ease of flaring and bending, and although the metal cost is greater than that of steel alternatives, copper-nickel is very attractive in view of its extra life, trouble-free installation and safety/reliability characteristics. 

Properties of Copper-Nickel Brake Tubing
The copper-nickel alloy used for brake tubing typically contains 10% nickel, with iron and manganese additions of 1.4% and 0.8% respectively. The product conforms to ASTM B466 (American Society for Testing and Materials), which specifies dimensions, tensile strength and yield strength. Formability and internal cleanliness conform to specifications SAE J527, ASTM A254 and SMMT C5B (Society of Motor Manufacturers and Traders). Also, the alloy meets the requirements for pressure containment, fabrication and corrosion resistance for ISO 4038 (International Standards Organization) and SAE J1047.
The mechanical properties of alloy C70600 in comparison with steel and copper are shown in

Material Ultimate Tensile Strength1000 psi (MPa) Yield Strength 0.5% Ext.under Load 1000 psi (MPa) YElongation % in 2 in. Fatigue Strength (10x7 cycles) 1000 psi (MPa) Burst Pressure* 1000 psi (MPa)
Copper-brazed Steel 48-55 (0.330-0.380) 28-34 (0.190-0.235) 30-40 30 (
0.210)
19.5 
(0.135)
C12200-Phosphorus deoxidized Copper 32-38 (0.220-0.265) 10-14 (0.070-0.100) 45-60 10 
(0.070)
12 (
0.083)
C70600-Copper Nickel 90-10 48-54 (0.330-0.370) 16-22 (0.110-0.150) 40-55 15 
(0.100)
19 (
0.130)

Alloy C70600 is normally supplied as redrawn tubing in the annealed condition. The combination of strength and good ductility give excellent formability. 
As copper-nickel is softer than steel, it was first feared that fretting might be a problem. Experience has shown this is not the case.

Corrosion Resistance
For many years prior to its application as a brake tubing material, alloy C70600 had been used in ships, power station condensers and hydraulic lines on tankers, and had displayed excellent resistance to saline conditions. Early tests revealed that copper-nickel has almost the same resistance to burst pressure as steel. In testing, however, when exposed to salt spray over 180 days, steel's burst strength decreases significantly. The copper alloy remains consistently resistant.
For tubes covered with a moist, salty mudpack for six months, brazed steel was severely corroded resulting in perforation of the tubing wall; whereas, only superficial general corrosion was found on the copper-nickel tubing. ISO 4038 and SAE J1047 include a corrosion resistance requirement referring to ISO 3768 asking for a minimum burst pressure of 110 MPa after 96 hours in neutral salt spray. Swedish requirements include a resistance at least equal to 25µ of zinc. In all cases alloy C70600 easily exceeds the required corrosion resistance.

Copper-nickel brake tubing provides superior reliability and assures both manufacturers and vehicle owners improved durability for effective long-life functioning of the brake system.
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Cupro Nickel Rods 90/10 and 95/5

Chemical Properties
Pb 0.05 Max.
Fe 1.00 - 1.80
Mn 1.00 Max.
Zn 1.00 Max.
Cu + Ag Remainder Ni + Co 9.00 - 11.00

Flattening Test Reqd. (After 'O')
U.T.S. ksi 45.00 Min
Y.S. at 0.5% Ext. ksi 35.00 Min.
Expansion Test 30% at 60 degree Reqd. (After 'O')

Flattening Test Reqd.
Grain Size at 75 X mm Avg. 0.010 - 0.045
U.T.S. ksi 40.00 Min.
Y.S. at 0.5% Ext. ksi 15.00 Min.
Expansion Test 30% at 60 degree Reqd.
 
Chemical Properties
Sn 0.10 Max.
Pb 0.05 Max
Ni 4.00 - 5.00
Fe 0.10 Max.
Mn 0.25 Max.
As 0.10 Max.
Cu + Ag 95.00 - 96.000
Sb 0.01 Max.
Bi 0.0025 Max.
Oxygen (O2) 0.08 Max.

U.T.S. MPa 216 - 275 (Strip cut from Ring Tube)
%Elongation at 5.65Sq.Rt So G.L. 40.00 Min. (Strip cut from Ring Tube)
Flattening Test Reqd.
Bend Test Reqd. (180 degree close)
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Curpo Nickel Tubes 95/5 & 90/10 for Marine Application, Cupro Nickel Tubes 90/10 for Heat Exchangers & Condensers, Cupro Nickel Tubes 90/10 for Automobile Industries, Cupro Nickel Rods 90/10 and 95/5, Cupro Nickel Pancake Coils Exporter Suppliers Manufacturers Mumbai IndiaCopper-nickel brake tubing provides superior reliability and assures both manufacturers and vehicle owners improved durability for effective long-life functioning of the brake system.Coils Available in 5 mtr, 10 mtr & 15mtrs.

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