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Home » Cupro Nickel » Cupro Nickel Tubes 95/5, 90/10 & 70/30 Marine application

Cupro Nickel Tubes 95/5, 90/10 & 70/30 Marine application
Metal Gems
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Commonly known as cupro-nickels, a range of copper nickel alloys exists that posseses varied properties and thus are used in different applications.
Some popular copper nickel alloys are-
  • Copper with 30% nickel
  • Copper with 10% nickel
  • Copper with 5% nickel
All the copper nickel alloys for copper nickel alloy tubes have only one phase since the copper nickel binary system shows complete solid solubility.
Cupro Nickel Tubes 95-5 & 90-10 Marine application
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Major Properties
  • Generally properties vary in accordance to the composition, some properties are mentioned below The major variety are- Copper 90/10, Copper 95/5 and Copper 70/30
  • The 95/5, 90/10 and 70/30 variety is more stronger and exhibits superior resistance to impingement corrosion
  • It exhibits outstanding resistance to corrosion in particular to sea water
  • It offers good resistance to biofouling as 95/5, 90/10 alloy being slightly superior compared to the 70/30 alloy
Alloys rich in copper exhibit the following features
  • Good corrosion resistance
  • Ductile
  • good strength
  • Can be hardened only by cold working
  • Low temperature co-efficient of electrical resistance
  • The nickel content helps the alloys to retain strength even at elevated temperatures as compared to copper alloys without nickel.
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Applications
Such Cupro Nickel tubes & pipes for Marine application are very vital for all industrial fields. The company's vast experience in the related field enables them to supply such tubes in accordance to the international standards with specific customer requirements.

The 95/5, 90/10 & 70/30 nickel alloy tubes are used as sea water condensor systems and desalination plants owing to good resistance against sea water corrosion and also for pipe work in chemical plants.

Due to the fact that 95/5, 90/10 & 70/30 alloy requires no surface protection thus providing extra safety, they are extensively used in the automotive applications for brake and hydraulic suspension systems and also as cooling systems in commercial vehicles and cars.

95/5, 90/10 & 70/30 Copper Alloys are also extensively used in marine applications owing to it's characteristic of good resistance to biofouling and sea water corrosion resistance and are used in applications such as cladding for ships' hulls, legs of oil rig platforms and sea water intake screens.

There are some other application areas of 95/5, 90/10 & 70/30 copper alloy tubes like,
These tubes are used in
  • Ammunition
  • Sea water corrosion-resistant assemblies
  • Condenser tubes
  • Cooling circuits
The Copper nickel alloy of the ratio 95/5, 90/10 & 70/30 has high erosion and corrosion resistance and high weld ability, is easy to install hence is used for condensors, ship building and refineries.
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Technical Specifications:-
Chemical Composition
Classification Class Chemical Composition (%) Related Standards
Cu Zn Pb Fe P Sn Ni Mn Al As Other ISS KS JIS ASTM BS DIN
Tough Pitch
Copper
1 99.9
min
                    ETP D 5301 C1100 H 3300
C1100
B 188
C 11000
2871
C101
C102
1787
ECU58
ECU57
                                   
Phosphorus
Deoxidized
Copper
Low
Residual
99.9
min
      0.004-
0.012
            DLP D 5301 C1201 H 3300
C 1201
B 75
C 12000
2871
C106
1787
SW-CU
High
Residual
99.9
min
      0.015-
0.040
            DHP C1220 C1220 C12200 C106 SF-CU
Phosphorus
Deoxidized
Arsenic Copper
High
Residual
99.9
min
      0.015-
0.040
        0.015-
0.040
  DPA C1420 C1420 C14200 C107 CuAsp

Mechanical Properties
Classification Temper Designation Tensile Test Hardness Test
Outside
diameter
(mm)
Thickness
(mm)
Tensile
Strength
Kgf/mm2
Elongation
(%)
Thickness Rockwell Hardness
HR30T HR15T
Tough Pitch
Copper
0 C11000 5-150 0.5-30 26max 25min 50max -
1/2H 5-150 0.5-25 - - - -
H 5-100 0.5-6 23-28min 3-20min 65-80min -
40min 0.4min - 60max
Phosphorus
Deoxidized
Copper


Phosphorus
Deoxidized
0 C12000 4-150 0.3-30 21min
0L 4-150 0.3-30 21min 40min 0.4min - 60max
1/2H 4-150 0.3-25 25-33 30-60 -
H C12200 4-150 0.3-6 32min 55min -
0 C14200 4-150 - 21min - -
1/2H 4-150 - 25-33 - -
Arsenic Copper H 4-150 0.3-6 32min 55min -
Metal Gems
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