Alloy 330 Nb

Werkstoff – Nr. 1.4887
DIN 10095

Alloy 330 Nb is a special alloy similar in physical and electrical characteristics to regular NiCr 40/20 (1.4886), but additionally doped by 1.0 to 1.5% of Columbium. Additional content of Columbium in Alloy 330 Nb increases mechanical strength at elevated temperatures. For electrical and heating application reasonable to use pure Alloy 330 Nb due to longer life time of elements in operational process. The recommended field of application for this alloy is the manufacturing of furnace parts such as conveyer belts, wire meshes or other products working at fluctuating temperatures up to 1100 °C.

Chemical composition

Iron Fe Bal. Nickel Ni 33-37% Silicon Si 1-2% Chromium Cr 20-23% Manganese Mn max 2% Carbon C max 0.15%
Sulfur S max 0.015% Nitrogen N max 0.11% Phosphorus P max 0.03% Other Nb 1-5%

Physical properties

Density g/cm3

Electrical resistivity at 20°C Ω mm2/m

Melting point °C

Max continuous operating temperature in air °C

Magnetic properties

7.95

1.09 1380

1050

non-magnetic


Mechanical properties

Yield strength
Rp0.2
MPa

Tensile strength
Rm
MPa

Elongation
A%

Hardness
Hv

230

500-750

32

223


Product forms

Product

    Size, mm   

Condition of supply

  wire

0.2 – 12.0

            soft annealed
            semi-hard
            hard


Application

  • vonveyer belts / wire meshes
  • anchoring and fastening systems
  • industrial furnace parts

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