1Cr13Al4 Ferritic Heat-Resistant Alloy Wire
Also Known As: Resistohm 125, W.Nr. 1.4725, CrAl 14/4(DIN W.Nr. 1.4725), Alkrothal 14, 15Ю5, Alloy 750, Ohmalloy 40, Alferon 902, Alchrome 750, Aluchrom W, 750 Alloy, Stablohm 750 etc.
Max 950°C| Chemical Composition (%) | |
|---|---|
| Element | Value |
| C | ≤0.12 |
| P | ≤0.025 |
| S | ≤0.02 |
| Mn | ≤0.5 |
| Si | ≤0.7 |
| Cr | 12.0~15.0 |
| Ni | ≤0.6 |
| Al | 4.0~6.0 |
| Fe | Remainder |
| Physical Properties | |
| Property | Value |
| Max. Operating Temp. | 950°C |
| Resistivity at 20°C (μΩ·m) | 1.25±0.08 |
| Density | 7.4 g/cm³ |
| Thermal Conductivity (20°C) | 15 W/(m·K) |
| Linear Expansion Coeff. (20-1000°C) | 15.4×10⁻&sup6;/°C |
| Specific Heat Capacity | 0.49 J/(g·K) |
| Approx. Melting Point | 1450°C |
| Elongation (A/%) | ≤3.0mm: ≥12%; >3.0mm: ≥15% |
| Tensile Strength (Rm) | ≥580 MPa |
| Accelerated Life Test | ≥80h/950°C |
| Microstructure | Ferrite |
| Magnetic Properties | Magnetic |
| Available Forms | |
| Form | Size |
| Bright & Soft Annealed Wire | 0.05-1.6mm |
| Acid-Pickled / Oxidation Wire | 1.0-12.0mm |
| Rods | 6.0-150.0mm |
1Cr13Al4 — Ferritic Heat-Resistant Stainless Steel & Heating Alloy
1Cr13Al4 is a ferritic heat-resistant stainless steel that also serves as a heating alloy. With moderate chromium and aluminum content, it provides good oxidation resistance at temperatures up to 950°C. This alloy bridges the gap between stainless steel and dedicated heating alloys, making it suitable for applications that require both structural integrity and moderate heating capability. Its lower alloy content makes it an economical choice for less demanding thermal environments.
Key Advantages
- Good oxidation resistance up to 950°C
- Ferritic stainless steel base — dual functionality
- Excellent cost efficiency due to low alloy content
- Good mechanical strength and formability
- Higher density provides robust construction
- Suitable for both structural and heating applications
Typical Applications
- Moderate-temperature heating elements
- Heat-resistant structural components
- Automotive exhaust system components
- Industrial furnace fixtures and supports
- Retorts and muffles for heat treatment
- Combustion equipment parts
- Low-temperature kiln furniture and supports
Standards & Equivalents
International Standard Cross-Reference for 1Cr13Al4
| GB/T (China) | 1Cr13Al4 |
|---|---|
| W.Nr. / EN | 1.4725 |
| Classification | Ferritic heat-resistant steel / heating alloy |
| Key Feature | Dual-purpose: structural + heating |