EN 10090 X53CrMnNiNbN21‑9 Valve Steel – Solution Heat‑Treated & Precipitation Hardened (+AT+P)
X53CrMnNiNbN21-9 is an austenitic Cr-Mn-Ni-Nb-N-alloyed valve steel.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 205 GPa | |
Elongation | 20.0 °C | 8 % | |
Hardness, Rockwell C | 20.0 °C | 30 [-] | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Austenitic Stainless Steel |
Reduction of area | 20.0 °C | 10 % | |
Shear modulus | 23.0 °C | 77 GPa | Typical for Austenitic Stainless Steel |
Tensile strength | 20.0 °C | 950 - 1150 MPa | |
500.0 °C | 680 MPa | ||
550.0 °C | 650 MPa | ||
600.0 °C | 600 MPa | ||
650.0 °C | 510 MPa | ||
700.0 °C | 450 MPa | ||
750.0 °C | 380 MPa | ||
800.0 °C | 320 MPa | ||
Yield strength Rp0.2 | 20.0 °C | 580 MPa | |
500.0 °C | 340 MPa | ||
550.0 °C | 320 MPa | ||
600.0 °C | 310 MPa | ||
650.0 °C | 280 MPa | ||
700.0 °C | 260 MPa | ||
750.0 °C | 235 MPa | ||
800.0 °C | 220 MPa | ||
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.55E-5 1/K | |
300.0 °C | 1.75E-5 1/K | ||
500.0 °C | 1.85E-5 1/K | ||
700.0 °C | 1.88E-5 1/K | ||
Melting point | 1230 - 1480 °C | Typical for Austenitic Stainless Steel | |
Specific heat capacity | 20.0 °C | 500 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 14.5 W/(m·K) | |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 23.0 °C | 8.5E-7 Ω·m | Typical for Austenitic Stainless Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.48 - 0.58 % |
Chromium | 20 - 22 % |
Manganese | 8 - 10 % |
Nickel | 3.25 - 4.5 % |
Phosphorus | 0.05 % |
Silicon | 0.45 % |
Sulfur | 0.03 % |
Metal
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