Basic Info.
Model NO.
0Cr20Al5Re
Origin
China
Production Capacity
2000kg/Week
Product Description
OHMALLOY139 is a iron-chromium-aluminium alloy (FeCrAl alloy) characterized by high resistance, low coefficient of electric resistance, high operating temperature, good corrosion resistance under high temperature.It is suitable for use at temperatures up to 1300°C.
Typical applications for UALLOY139 are used in industrial electric furnace, electric ceramic cooktop.
Normal composition%
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| Max | |||||||||
| 0.04 | 0.02 | 0.015 | 0.50 | Max 0.4 | 20.0-21.0 | Max 0.10 | 4.8-6 | Bal. | / |
Typical Physical properties
| Density (g/cm3) | 7.10 |
| Electrical resistivity at 20ºC(Ωmm2/m) | 1.39 |
| Conductivity coefficient at 20ºC (WmK) | 13 |
| Tensile Strength(Mpa) | 637-784 |
| Elongation | Min 16% |
| Harness(HB) | 200-260 |
| Section Variation Shrink Rate | 65-75% |
| Repeatedly Bend Frequency | Min 5 times |
| Coefficient of thermal expansion | |
| Temperature | Coefficient of Thermal Expansion x10-6/ºC |
| 20 ºC- 1000ºC | 16 |
| Specific heat capacity | |
| Temperature | 20ºC |
| J/gK | 0.49 |
| Melting point (ºC) | 1500 |
| Max continuous operating temperature in air (ºC) | 1300 |
| Magnetic properties | magnetic |
Style of supply
| Alloys Name | Type | Dimension | |
| UALLOY139W | Wire | D=0.03mm~8mm | |
| UALLOY139R | Ribbon | W=0.4~40 | T=0.03~2.9mm |
| UALLOY139S | Strip | W=8~250mm | T=0.1~3.0 |
| UALLOY139F | Foil | W=6~120mm | T=0.003~0.1 |
| UALLOY139B | Bar | Dia=8~100mm | L=50~1000 |