DIN 17440 Grade X20Cr13 quenched and tempered (+QT)
DIN 17440 Grade X20Cr13 quenched and tempered (+QT) introduction
Propertties:
- good corrosion resistance to water and steam
- is able for high gloss polishing
- application temperature: -40 up to 550°C
Application:
- for construction elements, requiring higher strengths because higher mechanical loadings
- axis, parts for pumps, plunger, valve cone, nozzle pin, propeller for ships
- also for beater bars and surgical instruments
Equivalent material: AS 420, AFNOR Z20C13, BS 420S37, GOST 20Ch13, ISO 4, UNI X20Cr13, JIS SUS420J1, NS 14210, PN 2H13, SS 2303, UNE F.3402, UNE X20Cr13, ASTM 420, UNE F.3402-X20Cr13, DIN 1.4021, DIN X30Cr13, BS 420S29, AISI 420, SAE 420, JIS SUS 420J1, JIS SUS420J1FB, JIS SUS420J1TKA, EN X20Cr13, EN 1.4021, ISO 20Cr13, GB 2Cr13, UNS S42000
DIN 17440 Grade X20Cr13 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.7 - 7.71 g/cm³ |
DIN 17440 Grade X20Cr13 quenched and tempered (+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
20.0 °C |
Coefficient of thermal expansion of 1.02E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.05E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.09E-5 - 1.1E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.13E-5 - 1.15E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.16E-5 - 1.2E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.2E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.22E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of -40 - 550 °C |
- |
| Melting point |
- |
Melting point of 1370 - 1530 °C |
Typical for Martensitic Stainless Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 439 - 460 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 474 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 498 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 517 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 538 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 564 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 598 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 24.6 - 30 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 24.7 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 25 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 25.2 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 25.5 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 25.8 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 26 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 7.3 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 6.4 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 6.1 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 5.8 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 5.4 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 4.8 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 4.1 mm²/s |
- |
DIN 17440 Grade X20Cr13 quenched and tempered (+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.16 - 0.25 % |
| Chromium |
Chromium of 12 - 14 % |
| Manganese |
Manganese of 1 - 1.5 % |
| Phosphorus |
Phosphorus of 0.04 - 0.05 % |
| Silicon |
Silicon of 1 % |
| Sulfur |
Sulfur of 0.015 - 0.03 % |
DIN 17440 Grade X20Cr13 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 5.87E-7 - 6E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 6.55E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 7.38E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 8.19E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 8.96E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 9.7E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 1.04E-6 Ω·m |
DIN 17440 Grade X20Cr13 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 216 - 222 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 213 - 216 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 207 - 209 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 200 - 201 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 192 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 183 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 174 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 12 - 14 % |
- |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 8 - 10 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Martensitic Stainless Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 77 GPa |
Typical for Martensitic Stainless Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 650 - 950 MPa |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 650 - 950 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 450 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 450 MPa |
- |
| - |
50.0 °C |
Yield strength Rp0.2 of 430 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 420 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 410 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 400 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 382 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 365 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 335 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 305 MPa |
- |
| Yield strength Rp0.2, transverse |
20.0 °C |
Yield strength Rp0.2, transverse of 450 MPa |
- |
| Yield strength, transverse |
20.0 °C |
Yield strength, transverse of 450 MPa |
- |
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