10M 50M Cr20Ni80 Nickel-Chromium High-Temperature Alloy Heating Wire for Foam Cutting Sealing Machine Resistance Wire

Resistance value parameter

Standard for implementation: GB/T1234-2012
Chemical composition:
Cr: 20.0 - 23.0%
Ni: in excess
Si: 0.75 - 1.60%
Fe ≤ 1.0%
Al: 0.5%
Mn: 0.6%
C: ≤ 0.08%
P: ≤ 0.02%
S: ≤ 0.015%
Maximum operating temperature of the component: 1200°C
Fast life: not less than 80 hours
Melting point: 1400°C
Density: 8.4 grams/cm³
Resistivity: 1.09 ± 0.05 μΩ·m
Specific heat capacity: 0.46 J/(g.K)
Strain rate: not less than 20%
Tensile strength: not less than 650 Rm/MPa
Heat conductivity: 15 W/(m.K) (20°C)
Linear expansion coefficient: 18
Microstructure: Austenite
Magnetic property: non-magnetic