950 degree working temperature 1Cr13Al4 annealed strip FeCrAl13/4
alloy for heating element
OhmAlloy125
(Common Name:1Cr13Al4,Alkrothal 14,Alloy 750,Ohmalloy 40,Alferon
902,Alchrome 750,Resistohm 125,Aluchrom W,750 Alloy,Stablohm 750.)
OhmAlloy125 is a iron-chromium-aluminium alloy (FeCrAl alloy)
characterized by Stable performance,
Anti-oxidation,Corrosion resistance,High temperature
stability,Excellent coil-forming ability,Uniform and beautiful
surface condition without spots.It is suitable for use at
temperatures up to 950°C.
Typical applications for OhmAlloy125 are used in electric
locomotive, diesel locomotive,metro vehicle and high speed moving
car etc brake system brake resistor,electric ceramic
cooktop,industrial furnace.
Normal composition%
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| Max |
| 0.12 | 0.025 | 0.025 | 0.70 | Max 1.0 | 12.0~15.0 | Max 0.60 | 4.0~6.0 | Bal. | - |
Typical Mechanical properties(1.0mm)
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 455 | 630 | 22 |
Typical Physical properties
| Density (g/cm3) | 7.40 |
| Electrical resistivity at 20℃(Ωmm2/m) | 1.25 |
| Conductivity coefficient at 20℃ (WmK) | 15 |
| Coefficient of thermal expansion |
| Temperature | Coefficient of Thermal Expansion x10-6/℃ |
| 20 ℃- 1000℃ | 15.4 |
| Specific heat capacity |
| Temperature | 20℃ |
| J/gK | 0.49 |
| Melting point (℃) | 1450 |
| Max continuous operating temperature in air (℃) | 950 |
| Magnetic properties | non-magnetic |
Cr13Al4 FeCrAl alloy electrical electrothermal furnace wire is
characterized by excellent oxidation resistance and very good form
stability resulting in
long element life. They are typically used in electrical heating
elements in industrial furnaces and home
appliances. FeCrAl alloys have higher service temperature then NiCr
alloys,but lower stability and flexibility.
2.Characteristics:
1) The highest working temperature up to 950 degree.
2) Longer working life,and better technical properties
3) Higher surface load.
4) Higher resistivity.
5) Lower density.
6) Free from oxide debris
3. Applications
1Cr13Al4 FeCrAl alloy electrical electrothermal furnace wire is
widely used in heat treatment equipment, auto parts, iron and steel
manufacturing,
aluminum industry, metallurgical equipment, petrochemical
equipment, glass machinery, ceramic machinery,
food machinery, pharmaceutical machinery, power engineering
industry, and residential appliances.
Temperature Factor of Electrical Resistivity
| 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
| 1 | 1.005 | 1.014 | 1.028 | 1.044 | 1.064 | 1.090 | 1.120 | 1.132 | 1.142 | 1.150 | - | - | - |
Style of supply
| Alloys Name | Type | Dimension |
| OhmAlloy125W | Wire | D=0.03mm~8mm |
| OhmAlloy125R | Ribbon | W=0.4~40 | T=0.03~2.9mm |
| OhmAlloy125S | Strip | W=8~250mm | T=0.1~3.0 |
| OhmAlloy125F | Foil | W=6~120mm | T=0.003~0.1 |
| OhmAlloy125B | Bar | Dia=8~100mm | L=50~1000 |
