About Smiths Advanced

We are a leading stockholder and global supplier of metals and plastics into Aerospace & Space, Chemical, Defence, Medical, MRO, Naval, Nuclear, Oil & Gas and Power industries.

We make high quality materials available in a fast, cost-effective and convenient package and provide a consistent supply path for all our customers.

Supply Packages

CW354H Copper Nickel Bar

For marine applications

CW354H is an ideal product for offshore applications.

CW354H is a Euro Norm standard copper-nickel bar product produced to BS EN 12163.

The alloy is an equivalent specified material to copper-nickel 70/30, which, as the name suggests, contains 70% copper and 30% nickel. Iron and manganese are also added in minute quantities in the alloying mix, improving strength and corrosion resistance.

Material Characteristics

CW354H is renowned for improved performance compared to 90/10 copper-nickel alloy, particularly in harsher application environments such as high-velocity water. Strength is also marginally superior while promoting good toughness. Like all copper-nickel alloys, CW354H offers excellent corrosion resistance with additional attractive characteristics, including good pitting and bio-fouling resistance (although 90/10 copper nickel offers superior resistance). The product also has a moderately high melting point and low electrical conductivity and provides excellent mechanical properties at low temperatures.

The alloy is easy to weld, machine and form by conventional methods. The chemical Euro Norm designation for this material is CuNi30-Mn1Fe.

CW354H Copper Nickel Bar Datasheet

Commercial Applications

CW354H is ideal for commercial applications in the marine sector, including above-sea and subsea operations. Heat exchangers, propeller bore sleeves, subsea pipes and pump/valve components all utilise CW354H copper-nickel alloy.

We stock CW354H in solid round bars in close incremental sizes. We also provide bar-cutting services via our bulk central warehouse in Biggleswade.

Product Features:

    UNS C71500
    DEF STAN 02-879 Annex B
    DEF STAN 02-780
    NES 780

    Pump and valve components
    Above and subsea pipework
    Propeller bore sleeves
    Heat exchangers

    Excellent corrosion resistance
    Improved strength
    Excellent mechanical properties at low temperatures
    Good pitting and biofouling resistance

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