Ohmalloy Material Co.,Ltd
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0.7x130mm of Cr13Al4 coil strip Stablohm 750 strip FeCrAl alloy
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.
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 | |
Package