Other alloys · Alloy 40 B / 1.4888
Alloy 40 B (1.4888, X10NiCrSiLa 38-22): Engineering Reference Guide
Engineering parameters of Alloy 40 B
| Delivery form | Designation | Standards | Equivalent (W.Nr.) |
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| Strip, wire | Alloy 40 B, VDM Alloy 40 B, Cronifer 40 B | DIN EN | 1.4888 |
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| Strip, wire | Alloy 40 B, VDM Alloy 40 B, Cronifer 40 B | DIN EN | |
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| Strip, wire | Alloy 40 B, VDM Alloy 40 B, Cronifer 40 B | DIN EN | |
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| Strip, wire | Alloy 40 B, VDM Alloy 40 B, Cronifer 40 B | X10NiCrSiLa 38-22 | |
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Alloy 40 B composition in percentage (%)
Mechanical properties of Alloy 40 B
| Tensile strength | Yield strength (0.2% offset) | Elongation |
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| 87.0 ksi | 39.2 ksi | 40% (min.) |
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| 270 MPa | 600 MPa | 40% (min.) |
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Key physical constants and properties
The density of Alloy 40 B is 7.95 g/cm³. This parameter is critically important for structural weight calculations and confirms its structural stability when subjected to cyclic and constant thermal loads.
| Temperature | 20°C | 400°C | 1000°C |
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| Temperature | 68°F | 752°F | 1832°F |
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| Specific heat capacity | 490 J/kg K | 540 J/kg K | 640 J/kg K |
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| Specific heat capacity | 0.117 Btu/lb°F | 0.129 Btu/lb°F | 0.153 Btu/lb°F |
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| Thermal conductivity | 12 W/m K | 18 W/m K | 26 W/m K |
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| Thermal conductivity | 83 Btu in./ft²h°F | 125 Btu in./ft²h°F | 180 Btu in./ft²h°F |
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| Electrical resistivity | 106 µΩ·cm | 118 µΩ·cm | 128 µΩ·cm |
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| Electrical resistivity | 638 Ω·circ mil/ft | 712 Ω·circ mil/ft | 773 Ω·circ mil/ft |
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| Expansion coefficient | - | 16.7 | 17.8 |
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| Expansion coefficient | - | 9.3 | 9.9 |
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| Coefficient C_t | 1.00 | 1.12 | 1.21 |
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