ALLOY CuNi 90/10 Designation and Specifications Sheet/strip Tube/pipe Rod/bar

Designation , UNS C 70600 USA ASTM (B) ASME (SB) 122, 171,

402 466/467/111 151

Designation , BS CN 102 CN 102 CN 102 GB BS 2870/2875 2871 2874

F AFNOR CuNi 10 Fe 1 Mn

Designation CuNi10FelMn Werkstoff-Nr. 2.0872 DIN 17664 17664 17664 17670/17675 17671/1785 17672 SEW - - -

D

AD data Sheet W6/2 Chemical composition (%) Copper Balance Nickel 9 - 11 Iron 1 – 1.8 Maganese 0.5 – 1 Zinc - Others -

Mechanical properties (N/mm2, %) Temperature (oC) Rp 0.2 Rp 1.0 Rm A5 20 min. 100 min. 125 min. 300 min. 30 100 - min. 118 - - 200 - min. 109 - - 300 - min. 99 - - 350 - - - - Creep properties (N/mm2)

Temperature (oC) Rp 1.0/104 Rm /104 Rp 1.0/105 Rm105 100 - - - - 200 98 - 94 - 250 88 - 83 - 300 74 - 62 - 350 - - - - Physical properties at room temperature or as indicated

Density g/cm3 8.9 Specific heat J/kg K 380 Thermal conductivity W/m K 45 Electrical resistivity µ Ω cm 19 Thermal expansion 10-6/K 20-300 oC

17.0

Modulus of elasticity kN/mm2 130 Fabrication characteristics Formability Good Weldability Good Welding products Filler wire Cunifer S 7030 – FM 67 or Cunifer S 9010 Covered electrode 2.0838 EL-CuNi30Mn AWS ECuNi

Material description, main characteristics

Copper-nickel alloy with approx. 10% nickel and iron and manganese additions. Very good resistance to seawater and to brackish and industrial waters. Excellent resistant to flowing clean seawater (flow velocities from 1 to 3.5 m/s). good resistance to stress corrosion cracking.

Typical applications Seawater piping systems on ships as well as on

offshore oil and gas production platforms . seawater intake pipes into desalination plants, coastal power stations and refineries. Condensers and heat exchangers in power stations, refineries and seawater desalination plants. Cunifer 10 is alos user for the sheating of oil and gas production platform columns in the splash zone.