EN 10277-4 Grade 20NiCrMoS2-2: Ferritic-Pearlitic Structure & Turned – High Performance Steel for Automotive & Machinery
Steel 20NiCrMoS-2 is suitable for parts in vehicle and machine engineering, that are wear loaded at mean core strength, high ductility and fatigue resistance (e.g. gear wheels, shafts, axles). The show an enhanced workability. Lowest application temperature -60°C, most favorable application area up to 60 mm nominal size. As a bright steel product it is used in the form of bars, bright, straight, in various conditions (see DIN EN 10277 : 1999-10).
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.84 - 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | -100.0 °C | 217 GPa |
20.0 °C | 205 - 212.78 GPa | |
100.0 °C | 207 GPa | |
200.0 °C | 188 - 199 GPa | |
300.0 °C | 192 GPa | |
400.0 °C | 184 GPa | |
500.0 °C | 175 GPa | |
600.0 °C | 164 GPa | |
Hardness, Brinell | 20.0 °C | 149 - 194 [-] |
Poisson's ratio | 20.0 °C | 0.29 [-] |
Shear modulus | 20.0 °C | 79 - 82.8 GPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | -100.0 °C | 1.05E-5 1/K | |
20.0 °C | 1.15E-5 1/K | ||
100.0 °C | 1.1E-5 - 1.21E-5 1/K | ||
200.0 °C | 1.27E-5 1/K | ||
300.0 °C | 1.32E-5 1/K | ||
400.0 °C | 1.36E-5 1/K | ||
500.0 °C | 1.4E-5 1/K | ||
600.0 °C | 1.44E-5 1/K | ||
Max service temperature, long | -60 - 0 °C | ||
Melting point | 1382 - 1529 °C | Typical for Nickel Chromium Molybdenum Steel | |
Specific heat capacity | -100.0 °C | 423 J/(kg·K) | |
20.0 °C | 460 - 461 J/(kg·K) | ||
100.0 °C | 479 J/(kg·K) | ||
200.0 °C | 499 J/(kg·K) | ||
300.0 °C | 517 J/(kg·K) | ||
400.0 °C | 536 J/(kg·K) | ||
500.0 °C | 558 J/(kg·K) | ||
600.0 °C | 587 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 44 - 46.3 W/(m·K) | |
100.0 °C | 47.1 W/(m·K) | ||
200.0 °C | 46.2 W/(m·K) | ||
300.0 °C | 44.1 W/(m·K) | ||
400.0 °C | 41.3 W/(m·K) | ||
500.0 °C | 38.6 W/(m·K) | ||
600.0 °C | 35.9 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 12.8 mm²/s | |
100.0 °C | 12.1 mm²/s | ||
200.0 °C | 11.1 mm²/s | ||
300.0 °C | 10 mm²/s | ||
400.0 °C | 8.8 mm²/s | ||
500.0 °C | 7.4 mm²/s | ||
600.0 °C | 4.7 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 1.6E-7 - 2.25E-7 Ω·m |
100.0 °C | 2.72E-7 Ω·m | |
200.0 °C | 3.42E-7 Ω·m | |
300.0 °C | 4.26E-7 Ω·m | |
400.0 °C | 5.26E-7 Ω·m | |
500.0 °C | 6.4E-7 Ω·m | |
600.0 °C | 7.73E-7 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.17 - 0.23 % |
Chromium | 0.35 - 0.7 % |
Manganese | 0.65 - 0.95 % |
Molybdenum | 0.15 - 0.25 % |
Nickel | 0.4 - 0.7 % |
Phosphorus | 0.03 - 0.04 % |
Silicon | 0.4 % |
Sulfur | 0.02 - 0.04 % |
Metal
- EN 10277-4 Grade 20MnCrS5 – Ferritic-Pearlitic Treated & Surface-Hardened Steel for High-Strength Automotive & Machinery Parts
- EN 10277‑4 Grade 20MnCrS5 – Ferritic‑Pearlitic Steel with Defined Hardness and Cold‑Drawn Finish
- DIN 1652-3 Grade 20MoCrS4: Ferritic-Pearlite Structure & Cold-Drawn for High-Performance Applications
- DIN 1652-3 Grade 22CrMoS3-5: Ferritic‑Pearlite Heat Treatment & Cold‑Drawing for High‑Performance Automotive Components
- DIN 1652-3 Grade 20Cr4 Steel: Ferritic-Pearlitic Structure and Cold-Drawn Process for High-Wear Applications
- DIN 1652-3 Grade 20CrS4: Ferritic‑Pearlite Treatment & Cold‑Drawing for High‑Wear Applications
- DIN 1652-3 Grade 20MnCrS5: Ferritic-Pearlitic Structure and Cold-Drawn Processing
- EN 10277‑4 Grade 20NiCrMoS2‑2: Ferritic‑Pearlite Steel with Optimized Hardness and Cold‑Drawn Performance (+FP+C)
- EN 10277-4 Grade 16MnCrS5 Steel – Ferritic-Pearlitic Structure, Turned (+FP+SH) for High-Performance Applications
- EN 10277-4 Grade 16MnCrS5: Optimized Ferritic‑Pearlite Structure, Hardness Range, and Cold‑Drawn Performance