Copper Alloy C70600

Copper Nickel Alloy C70600 tubing,  90/10 Alloy bar, 90/10 Alloy plate

Copper Nickel C70600 is also known as 90/10 Alloy because it contains 90% copper, 10% nickel alloy and important additions of iron and manganese to enhance overall strength corrosion resistance. C70600 Copper Nickel is used in applications where resistance to corrosion and stress cracking is important like marine, offshore, chemical, petrochemical and shipbuilding industries. LKALLOY is a leading supplier of Copper Nickel C70600. LKALLOY mainly supply ASTM B171 C70600 plates, ASTM B151 rods and bars, ASTM B466 90/10 Tube of various size and specifications.

Available Forms And Specifications

C70600 Beryllium Copper of LKALLOY supplying is available in bars, rods and plates.

Sheet / Plate / Strip: ASTM B 171, ASTM B122, SAE J463, J461
Seamless Pipe / Tube: ASTM B466, ASTM B111
Welded Pipe / Tube:  ASME SB467, ASTM B608, B467
Round / Flat bar: ASTM B151, ASTMB122
Wire: AMS 4725, ASTM B197, SAE J463, J461

Chemical Composition

Cu Ni Fe Zn Pb Mn

(nominal 88.6%)

9.0-11.0 1.0-1.8 1.0 max 0.05 1.0

Mechanical Properties

Density  lb/in³ 0.298
Coefficient of Thermal Expansion (in./in./°F) 9.9 x10⁶
Thermal Conductivity (btu/°F) 62-70
Elongation at Break, % 10
Tensile strength, ksi 165-177
Yield Strength, ksi 140-150
Hardness 37-45


These grades are most commonly specified within the marine, offshore, chemical, petrochemical and shipbuilding industries and are also widely used for handling seawater in all types of heat exchanger and cooling plant.

Saltwater pipes and fittings, hot water tanks, baffles, propeller sleeves, valve and pump components, flanges, boat hulls, marine fittings and marine hardware;

Heat exchanger and cooling plant, evaporator tubes, pump and valve trim.

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