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CuNi Pipes & Fittings

Better processing, with long-term durability

CuNi Pipes & fittings are widely used on board FPSO vessels, Modules, Naval vessels & LNG plants. We can supply pipes, concentric reducers, elbows, T-pieces, flanges and sockets.

Copper-nickel alloys are among the most corrosion-resistant copper materials. Our brand name EUCARO 10 is the benchmark for CuNi90/10 alloys.

We have further developed the standard trade material quality of CuNi10Fe1,6Mn with regard to better processing and longer-term durability, to be able to better exploit the advantages of our material. Through the optimisation of the alloy components and the minimisation of impurities such as sulphur or phosphorous, our customers receive tubes, flanges and fittings that are fit-for-purpose.

Features

  • Excellent corrosion resistance, especially against seawater
  • Good welding and soldering properties
  • Good cold-workability
  • Good thermal stability (up to approx.300° C)
  • Resistant to stress corrosion
  • No biofouling

Standards

Designation EUCARO® 10
DIN CuNi10Fe1,6Mn (CW 352 H)
DIN Material Nr 2.1972
EN CW 352 H
BS CN 102
EEMUA UNS 7060x
ASTM C 70600
NF CuNi10Fe1,6Mn (CW 352 H)

Mechanical Properties

F30 F20
0,2 % proof stress(Rp 0,2), N/ mm² 100 – 180 160 – 220
Tensile strength (RM), N/ mm² 300 – 400 320 – 420
Elongation A5 % > 30 > 25
Brinell hardness HB 10 (D²/2,5/62,5) 70-90 80-100

Physical Properties

Density (20 °C), kg/ m³ 8 900
Specific Heat (20 °C), kg/ m³ 377
meltinge range, °C 1 100 – 1 145
Thermal conductivity (20 °C), W/mk 50
Coeff. of linear exp. (20 - 100 °C), 10-6/K 17
Electrical resistance (20 °C, annealed), microohm cm 19
Modulus of elasticity (20 °C, annealed), GN/m² 138