1Cr13Al4 (W.Nr. 1.4725) is an iron-chromium-aluminium alloy for use at temperatures up to 950℃.
Equivalent Grades
Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
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Alkrothal 14 | 1Cr13Al4 | Х13Ю4 | Ⅳ | – | CrAl 14 4 | 1.4725 | – | – | – | – |
Chemical Composition, %
Alloy | C | Si | Mn | P | S | Cr | Ni | Al | Fe |
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1Cr13Al4 | ≤0.12 | ≤1.00 | ≤0.70 | ≤0.025 | ≤0.025 | 12.0-15.0 | ≤0.60 | 4.0-6.0 | Bal |
Mechanical Properties (RT, Annealed)
Tensile Strength, Rm/MPa | Elongation, A/% |
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Dia. >3.00mm (Wire) Thk. >0.20mm (Strip) | Dia. 0.10-3.00mm (Wire) Thk. ≤0.20mm (Strip) |
≥580 | ≥15 | ≥12 |
Physical Properties
Max Working Temp., ℃ | Melting Point, ℃ | Density, g/cm3 | Resistivity, μΩ·m 20℃ | Specific Heat, J/(g•K) | Thermal Conductivity, W/(m•K) 20℃ | Average Coefficient of Thermal Expansion,α×10-6/℃ 20-1000℃ | Micrographic Structure | Magnetic Properties |
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950 | 1450 | 7.40 | 1.25 | 0.49 | 15 | 15.4 | Ferrite | Magnetic |
Life Test
Test Temperature, ℃ | Continuous Service Time Hours, ℃ |
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950 | ≥80 |
Temperature Factor of Resistivity
20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
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1.000 | 1.005 | 1.014 | 1.028 | 1.044 | 1.064 | 1.090 | 1.120 | 1.132 | 1.142 | 1.150 | – | – | – |
Available Products and Specifications
Rod, Bar, Wire and Forgings | GB/T 1234-2012, ASTM B603-01, DIN 17470-1984, GOST 12766.1-1990, GOST 12766.3-1990, GOST 12766.4-1990, GOST 12766.5-1990 |
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Plate, Sheet and Strip | GB/T 1234-2012, ASTM B603-01, DIN 17470-1984, GOST 12766.2-1990 |
Pipe and Tube | – |
Welding Product | – |
Others | GOST 10994 |
Features
- High resistivity
- Low temperature coefficient of electric resistance
- High working temperature
- Excellent surface oxidation resistance under high temperature as well as in corrosive atmosphere
- The unique combination of excellent oxidation properties and form stability contributes to long element service life
Applications
- Heating elements for single crystal diffusion furnaces
- Powder metallurgy products
- Sintering furnaces
- Ceramic calciner
- High temperature furnace elements up to 1300℃