20 MoCr 4 | 1.7321 Material Datasheet
Unlock Exclusive Materials Data
Gain access to a wealth of materials data by joining our Materials Portal.
Register for Free or Upgrade for Full AccessMaterial Description
| Material Number | Material Number (single) | Standard | Scope | Standard Status | Country | Successor | Application temperature [°C] | VDA 231-106 classification | |
|---|---|---|---|---|---|---|---|---|---|
| 1.7321 (DIN 17210 : 1986-09) | 1.7321 | DIN 17210 : 1986-09 | DIN 17210 : 1986-09 replaced by DIN EN 10084 : 1998-06 | Replaced | Germany | 20MoCr4 | ≥ -60 | 1.1 | 1) |
| 1) Remark: The steel 20 MoCr 4 respectively 20 MoCr 5 (mat. no. 1.7321) is used for wear loaded parts in the vehicle and mechanical engineering with medium core strength, high toughness and high fatigue strength (e.g. gears, shafts, axles). The lowest application amounts to -60 °C, the best application up to 60 mm nominal size. |
Chemical Composition
| C [%] | Cr [%] | Mn [%] | Mo [%] | P [%] | S [%] | Si [%] | |
|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | 1) |
| 1) Source: blur |
Mechanical Properties
| Semi-finished Product | Condition | Nominal Size [mm] | Tensile Strength [MPa] | Yield Strength [MPa] | Elongation A [%] | Reduction of Area [%] | Hardness HB | HBW | |
|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| 1) Source: blur | ||||||||
| 2) Source: blur |
Physical Properties
| Temperature [°C] | Density [g/cm³] | Young's Modulus [GPa] | Shear Modulus [GPa] | Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] | Differential Coefficient of Thermal Expansion [10^-6*K^-1] | Thermal Conductivity [W/(m*K)] | Thermal Diffusivity [10^-6 m²/s] | Specific Electrical Resistance [µΩm] | Mean Specific Heat Capacity [kJ/(kg*K)] | True Specific Heat Capacity [kJ/(kg*K)] | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| 1) Source: blur | |||||||||||
| 2) Source: blur |
Heat Treatment
| Heat Treatment | Step | Temperature [°C] | |
|---|---|---|---|
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1) |
| 1) Source: blur | |||
| 2) Remark: blur |
Cross Reference
| Material Name | Country | Standard |
|---|---|---|
| 20 MoCr 4 | Belgium | NBN 253-03 |
| 20 MoCr 4 | Germany | DIN 17210 |
| 805 M 20 | Great Britain | BS 970/1 |
| SNCM 220 | Japan | JIS G 4103 |
| 2506-03 | Sweden | MNC 851 |
| F.1523-20 MoCr 4 | Spain | UNE 36-013 |
| 20MoCr4 | Germany | DIN EN 10084 |
Producer/Supplier/Trade names
| Tradename | Supplier |
|---|---|
| 20 MnCr 4 | ArcelorMittal Commercial Germany, Cologne |
| 20 MoCr 4 | AG der Dillinger Hüttenwerke, Dillingen |
| 20 MoCr 4 | Hoesch Hohenlimburg GmbH, Hagen |
| 20 MoCr 4 | Salzgitter Flachstahl GmbH, Salzgitter |
| 20 MoCr 4 | ThyssenKrupp Steel Europe AG, Duisburg |
| 20 MoCr 4 | voestalpine AG, Linz |
| 20 MoCr 4 | Saarstahl AG, Völklingen |
| 20 MoCr 4 | Georgsmarienhütte GmbH, Georgsmarienhütte |
| 20 MoCr 4 | Swiss Steel International GmbH, Düsseldorf |
| 20 MoCr 4 | Walzwerke Einsal GmbH, Nachrodt |
| 20 MoCr 4 | Platestahl Umformtechnik GmbH, Lüdenscheid |
| 20 MoCr 4 | Hermann Stahlschmidt Stahlgesellschaft m. b. H., Willich |
| 20 MoCr 4 | Stahlwerk Unna GmbH & Co.KG, Unna |
| 20 MoCr 4 | Bochumer Verein Verkehrstechnik GmbH, Bochum |
| 20 MoCr 4 | C.D. Wälzholz GmbH & Co. KG, Hagen |
| 20 MoCr 4 | ROPA STAHLVERTRIEB GMBH, Bad Bergzabern |
| 20 MoCr 4 | Vallourec Deutschland GmbH, Mülheim |
| 20 MoCr 4 | Stahlwerk Bous GmbH, Bous |
| 20 MoCr 4 BÖHLER E 320 | voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf |
| BGH 7321 | BGH Edelstahl Siegen GmbH |
| Buderus 20 MoCr 4 | Buderus Edelstahl GmbH, Wetzlar |
| Klöckner 20 MoCr 4 | Klöckner & Co SE, Duisburg |
| OVAKO 124 D | OVAKO STAHL GmbH, Erkrath |
| TS 20 MoCr 4 | ThyssenKrupp Schulte GmbH, Essen |
Material Compliance
| REACh | RoHS |
|---|---|
| blur | blur |
Hardenability (Jominy test)
| Condition | Front Distance [mm] | Hardness HRC | |
|---|---|---|---|
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| 1) Source: blur | |||
| 2) Remark: blur |
Linear-elastic
| Temperature [°C] | Young's modulus [GPa] | Bulk modulus [GPa] | Shear modulus [GPa] | Poisson's ratio |
|---|---|---|---|---|
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
Alternating stress
| Temperature [°C] | Stress ratio | Mean stress [MPa] | Alternating stress [MPa] | Cycles |
|---|---|---|---|---|
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
| blur | blur | blur | blur | blur |
Yield strength
| Temperature [°C] | 0.1% Proof strength [MPa] | 0.2% Proof strength [MPa] | Yield strength [MPa] |
|---|---|---|---|
| blur | blur | blur | blur |
Electrical resistivity
| Temperature [°C] | Specific electrical resistance [µΩm] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Coefficient thermal expansion
| Related Temperature [°C] | Temperature [°C] | Coefficient thermal expansion [10^-6*K^-1] |
|---|---|---|
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
Specific heat
| Temperature [°C] | Specific heat [kJ/(kg*K)] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Density
| Temperature [°C] | Density [g/cm³] |
|---|---|
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Thermal conductivity
| Temperature [°C] | Thermal conductivity [W/(m*K)] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Classification
| WIAM Material | Treatment | Semi-finished product | Dimension [mm] | Load type | Failure criteria | Rolling direction | Maximum stress [MPa] | Strain at maximum stress [%] | Source description |
|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur |
Designation
| Designation | Material number | Source |
|---|---|---|
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
Yield strength
| Temperature [°C] | 0.1% Proof strength [MPa] | 0.2% Proof strength [MPa] | Yield strength [MPa] |
|---|---|---|---|
| blur | blur | blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| WIAM Material | Treatment | Semi-finished product | Dimension [mm] | Load type | Failure criteria | Rolling direction | Maximum stress [MPa] | Strain at maximum stress [%] | Source description |
|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur |
Yield strength
| Temperature [°C] | 0.1% Proof strength [MPa] | 0.2% Proof strength [MPa] | Yield strength [MPa] |
|---|---|---|---|
| blur | blur | blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| WIAM Material | Treatment | Semi-finished product | Dimension [mm] | Load type | Failure criteria | Rolling direction | Maximum stress [MPa] | Strain at maximum stress [%] | Source description |
|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur |