0cr21al6nb/0cr27al7mo2/Kan-Thal Apm Resistance Heating Wire for Kilns Element
This product takes refined master alloy as raw material, uses powder metallurgy technology
to manufacture alloy ingots, and is manufactured by special cold and hot processing and heat
treatment process. The product has the advantages of strong oxidation resistance, good
corrosion resistance at high temperature, small creep of electrothermal components, long service
life at high temperature and small change of resistance. It is suitable for high temperature 1420 C,
high power density, corrosive atmosphere, carbon atmosphere and other working environments.
It can be used in ceramic kilns, high temperature heat treatment furnaces, laboratory furnaces,
electronic industrial furnaces and diffusion furnaces.
main composition
|
C |
Si |
Mn |
Cr |
Al |
Fe |
|
|
Min |
- |
- |
- |
20 |
5.5 |
Bal. |
|
Max |
0.04 |
0.5 |
0.4 |
22 |
6.0 |
Bal. |
Main mechanical properties
Tensile Strength at Room Temperature: 650-750MPa
Elongation rate: 15-25%
hardness: HV220-260
Tensile Strength at 1000℃ Temperature 22-27MPa
High Temperature Durability at 1000 Temperature and 6MPa ≥100h
Main physical properties
density 7.1g/cm3
resistivity 1.45×10-6 Ω.m
Resistance Temperature Coefficient（Ct）
|
800℃ |
1000℃ |
1400℃ |
|
1.03 |
1.04 |
1.05 |
Average linear expansion coefficient（）
|
20-800℃ |
20-1000℃ |
20-1400℃ |
|
14 |
15 |
16 |
melting point：1500℃,Maximum Continuous Working Temperature 1400℃
Fast life
|
1300℃ |
1350℃ |
|
|
Average Fast Life (Hours)
|
110 |
90 |
|
Sagging rate after rupture
|
8 |
11 |
