904L （1.4539） |
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Summary | 1.4539 (alloy 904L) is an austenitic special steel with high molybdenum content as well as addition of copper and extremely low carbon content. |
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Standard Product Forms |
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Chemical Composition Wt,% |
| Min | Max. |
| Min. | Max. | Min. | Max. |
Ni | 23 | 28 | Cu | 1.0 | 2.0 | C | 0.02 |
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Cr | 19 | 23 | Co |
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| Si | 1.0 |
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Fe |
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| Al |
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| P | 0.04 |
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Mo | 4 | 5 | Ti |
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| S | 0.03 |
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W |
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| Mn |
| 2.0 | N |
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Physical Constants | Density,g/ 8.24 |
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Melting Range,℃ |
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Typical Mechanical Properties | Elastic Modulus (Gpa) | 200 |
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Mean Co-eff of Thermal Expansion (μm/m/℃) | 0-100℃ | 15 |
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0-315℃ |
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0-538℃ |
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Thermal Conductivity (W/m.k) | At 20℃ | 13 |
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At 500℃ |
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Specific Heat 0-100 ℃ (J/Kg.K) | 500 |
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Elec Resistivity (nΩ.m) | 850 |
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Tensile Strength (Mpa) min | 490 |
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Yield Stregth 0.2% Proof (Mpa) min | 220 |
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Elongation (% in 50 MM) min | 35 |
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