General Description

CrAl 27-7 made by NiWire Industries, iron-chromium-aluminium alloy (FeCrAl alloy) which is recommended for use at wire temperatures up to 1400°C Max., can replace Kanthal series. In addition to industrial furnaces, it is used in appliances where its high resistivity and good oxidation resistance are of particular importance.

Chemical Composition

Grade Cr% Al% Fe% Re% Mo%
CrAl 27-7 26.5-27.8 6.0-7.0 Bal. Adequacy 1.8-2.2

Properties

Grade Specific Resistance 

 

(at 20°C)

(µΩ-m)

Hardness 

 

HB

Linear Expansion Coeff. 

 

(T=20 – 1000°C)

x10-6

Maximum Operating 

 

Temperature of Element (°C)

CrAl 27-7 1.53±0.07 200-260 16.0 1400

Size Range

CrAl 27-7 Wire Strip Ribbon
Dia (mm) 0.025-10
Width (mm) 5-250 0.4-4
Thickness (mm) 0.05-2.5 >0.025

 

Cut to length wire, flat wire, stranded wire are all available!

Save your time to know the resistance per meter at room temperature, see here FeCrAl wire data table.

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