CrAl 23-5

General Description

CrAl 23-5 is a ferritic iron-chromium-aluminium alloy (FeCrAl alloy) which is used at temperatures up to 1250°C. It is used in fast response elements for ceramic glass top hobs and quartz tube heaters.

CrAl 23-5 made by NiWire Industries can replace Kanthal D, Kanthal AE and so on.

Chemical Composition

Grade C% P% S% Mn% Si% Cr% Ni% Al% Fe%
CrAl23-5 Max 0.05 Max 0.025 Max 0.025 Max 0.5 Max 0.5 20.5-23.5 Max 0.6 4.2-5.3 Bal.

Physical Properties

Density: 7.25 g/cm3

Max Working Temperature: 1250°C

Melting Point: 1500 °C

Specific Resistance (at 20°C) (µΩ-m):  1.35±0.06

Linear Expansion Coeff. (T=20 – 1000°C) x10-6    : 15.0

Mechanical Properties

Tensile: 637-784 MPa

Elongation: Min 12%

Forms

Wire, Rod, Strip/Foil, Stranded Wire, Heating helix coil are available

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