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ASTM B111 C70400 Copper Nickel Pipes are high-quality copper-nickel alloy pipes engineered for superior corrosion resistance, strength, and long-term reliability in marine and industrial applications. They offer excellent resistance to seawater, biofouling, and erosion, making them ideal for heat exchangers, condensers, shipbuilding, offshore platforms, desalination plants, and cooling water systems.
Excellent hot and cold workability; good forge ability. Fabricated by bending, coining, coppersmith, drawing and upsetting, hot forging and pressing, knurling, roll threading, shearing, spinning, swaging, and stamping.
Good to excellent. Susceptible to galvanic corrosion when coupled with iron, aluminum, magnesium, leads, tin, and zinc. Good resistance to atmospheric, brackish water, sea water, and non-oxidizing acid corrosion, but avoid heating in oxidizing atmospheres or exposing to oxidizing acids, moist halogens, sulfides, ammonia, or solutions with ammonium ions.
TYPICAL USES for C70600 Copper Nickel "90/10":
Industrial: Condensers ,Condenser Plates, Evaporator Tubes , Ferrules , Heat Exchanger Tubes, Corrosion Resistanc Corrosion Resistanc, Petrochemicals, Salt Water, Erosion and Impingement, Moderate Strength, Retains Strength at High Temperatures.
Marine: Condenser Intake Systems , Salt Water Piping
Equivalent Specifications
SPECIFICATIONS
DESIGNATION
ISO
CuNi5Fe1Mn
BS
CN 101
Russian
MNZ5-1
Chemical Composition
Cu
Fe
Pb
Mn
Ni
Zn
Min/Max
Rem
1.3 - 1.7
0.05
0.3-0.8
4.8 – 6.2
0-1.0
Physical Properties
Melting Point - Liquidus°F
2050
Densitylb/cu in. at 68°F
0.323
Specific Gravity
8.94
Electrical Conductivity% IACS at 68°F
14
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F
37
Coefficient of Thermal Expansion 68-572 10−6Per °F (68-572 F)
9.7
Specific Heat CapacityBtu/lb/°F at 68°F
0.09
Modulus of Elasticity in Tensionksi
17000
Modulus of Rigidityksi
6400
Sizes Available
HOLLOW RODS
Min Bore Size 20 mm and Max OD 100 mm
ROUND RODS/RODS
8mm To 100 mm
HEX
10mm To 60mm>
SQUARE
10mm To 60mm
FLAT
10mm Min Thickness and max Width 120mm
BILLETS
Up to 200 mm
INGOTS
AS per Specification
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