Fecral Heating 0cr25al5 Alloy
1. Introduction
With the characteristics of high resistance, low coefficient of electric resistance,
High operating temperature, good corrosion resistance under high temperature.
It is mainly used in electric ceramic cooktop, industrial furnace.
2. Features
Stable performance; Anti-oxidation; Corrosion resistance; High temperature stability; Excellent coil-forming ability; Uniform and beautiful surface condition without spots.
3. Specification
3.1. Electric ceramic cooktop resistance strip:
Thickness: 0.04mm-1.0mm
Width: 5mm-12mm
Thickness&Width: (0.04mm-1.0mm)× 12mm(above)
3.2. Low resistance ribbon:
Thickness&Width: (0.2mm-1.5mm)*5mm
3.3. Industrial furnace ribbon:
Thickness: 1.5mm-3.0mm
Width: 10mm-30mm
| The allowable tolerance of alloy wire and rod diameter GB/T1234-2102 |
| Category | Diameter(mm) | Tolerance(mm) |
| Cold-drawn steel wire | 0.02 ~ 0.025 | 0.02 ~ 0.025 |
| 0.025 ~ 0.03 | 0.025 ~ 0.03 |
| 0.03 ~ 0.05 | 0.03 ~ 0.05 |
| 0.05 ~ 0.1 | 0.05 ~ 0.1 |
| 0.1 ~ 0.3 | 0.1 ~ 0.3 |
| 0.3 ~ 0.5 | 0.3 ~ 0.5 |
| 0.5 ~ 1.0 | 0.5 ~ 1.0 |
| 1.0 ~ 3.0 | 1.0 ~ 3.0 |
| 3.0 ~ 6.0 | 3.0 ~ 6.0 |
| 6.0 ~ 8.0 | 6.0 ~ 8.0 |
| 8.0 ~ 10.0 | 8.0 ~ 10.0 |
| Hot-finished rod | 5.5 ~ 12.0 | ±0.4 |
| The allowable tolerance of alloy strip GB/T1234-2012 |
| Category | Width ( mm ) | Tolerance ( mm ) |
| side cut | Nonside cut |
| Common precision | High precision |
| Cold-rolled Strip | 5.0 ~ 10.0 | ±0.2 | ±0.1 | -0.6 |
| 10.0 ~ 20.0 | -0.8 |
| 20.0 ~ 30.0 | -1 |
| 30.0 ~ 50.0 | ±0.3 | ±0.15 | -1.2 |
| 50.0 ~ 100.0 | ±1.0 |
| 100.0 ~ 200.0 | ±0.5 | ±0.25 | ±1.5 |
| 200.0 ~ 300.0 | ±1.8 |
| Hot-rolled Strip | 15.0 ~ 60.0 | / | ±1.5 |
| 60.0 ~ 200.0 | ±2.5 |
| 200.0 ~ 300.0 | ±3.0 |
| The allowable tolerance of alloy strip GB/T1234-2012 |
| Category | Thickness ( mm ) | Tolerance ( mm) |
| Common precision | High precision |
| Cold-rolled strip | 0.05 ~ 0.1 | ±0.01 | ±0.005 |
| 0.1 ~ 0.2 | ±0.015 | ±0.01 |
| 0.2 ~ 0.5 | ±0.02 | ±0.015 |
| 0.5 ~ 1.0 | ±0.03 | ±0.025 |
| 1.0 ~ 1.8 | ±0.04 | ±0.03 |
| 1.8 ~ 2.5 | ±0.05 | ±0.04 |
| 2.5 ~ 4.0 | ±0.06 | ±0.05 |
| Hot-rolled Strip | 2.5 ~ 5.0 | ±0.25 | ±0.2 |
| 5.0 ~ 7.0 | ±0.3 | ±0.25 |
| 7.0 ~ 10.0 | ±0.4 | ±0.35 |
| 10.0 ~ 20.0 | ±0.5 | ±0.45 |
| Properties/Grade | MWS-875 |
| Main Chemical composition(%) | Cr | 22.5 |
| Al | 5.5 |
| Fe | Bal |
| Tensile Strength(Psi at 20C) | Min | 105 |
| Max | 175 |
| Resistivity at 20oC (μ Ω @ m) | Ohms/Cmf | 875 |
| Tcr 0-100C | 0.00002 |
| Density (g/cm3) | 7.1 |
| Pounds percubic inch | 0.256 |
| Coefficient of linear expansion between20-100C(α × 10-6/oC) | 12 |
| Melting point (approx. )( oC) | 1520 |
| Magnetic attraction | Strong |
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