Glow-wire material: Nickel/Chromium (>77 %Ni/20 ± 1 %Cr)
Diameter: 4,0 mm ± 0,07 mm (before bending)
Dimension A: (after bending) see 5.1
When forming the glow-wire, care shall be taken to avoid fine cracking at the tip.
NOTE Annealing is a suitable process for prevention of fine cracking at the tip.
Key
1 Glow-wire
2 Thermocouple
3 Stud