31CrMoV9 | 1.8519 Material Datasheet
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| Material Number | Material Number (single) | Standard | Scope | Standard Status | Country | Predecessor | VDA 231-106 classification | |
|---|---|---|---|---|---|---|---|---|
| 1.8519 (DIN EN ISO 683-5 : 2021-08) | 1.8519 | DIN EN ISO 683-5 : 2021-08 | Supersedes DIN EN 10085 : 2001-07 | Valid | Germany | 31CrMoV9 | 1.1 | 1) |
| 1) Remark: The heat-treatable nitriding steel 31CrMoV9 is applicated for hot steam fitting components, valve spindles, crankshaft and similarly loaded wear parts up to a dimension of 100 mm. The steels contains nitriding agents (Cr) which contribute by the nitriding resp. nitrocarburization process with N resp. N and C to an increase of - case hardness - wear resistance - fatigue resistance and - corrosion resistance. Application for forged components: hardened, mechanically machined and thermochemical treated (e.g. nitriding) |
Chemical Composition
| C [%] | Cr [%] | Mn [%] | Mo [%] | P [%] | S [%] | Si [%] | V [%] | |
|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| 1) Source: blur |
Mechanical Properties
| Semi-finished Product | Condition | Nominal Size [mm] | Temperature [°C] | Tensile Strength [MPa] | Yield Strength [MPa] | Elongation A [%] | Hardness HB | HBW | Hardness HV | |
|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| 1) Source: blur | |||||||||
| 2) Remark: 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 | 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 |
Toughness Data (Impact)
| Condition | Nominal Size [mm] | Temperature [°C] | Specimen Shape | Specimen Direction | Notch Impact Energy [J] | |
|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| 1) Source: blur |
Heat Treatment
| Heat Treatment | Step | Temperature [°C] | Holding Time [h] | Medium | |
|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | 1) |
| 1) Source: blur |
Cross Reference
| Material Name | Country | Standard |
|---|---|---|
| 31CrMoV9 | Germany | DIN 743-3 |
| 31CrMoV9 | Europe | EN ISO 683-5 |
| 31CrMoV9 | International | ISO 683-5 |
Producer/Supplier/Trade names
| Tradename | Supplier | |
|---|---|---|
| GKJ | AUBERT & DUVAL Deutschland GmbH, München | 1) |
| BGH 8519 | BGH Edelstahl Siegen GmbH | 1) |
| DIRO-31CrMoV9 | DIROSTAHL, Remscheid | 1) |
| Nitrodur 8519 | Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten | 1) |
| KHD | Dörrenberg Edelstahl GmbH, Engelskirchen | 1) |
| Eschmann 8519 | EschmannStahl GmbH, Reichshof-Wehnrath | 1) |
| NS 54 | Gustav Grimm Edelstahlwerk GmbH & Co. KG, Remscheid | 1) |
| N 31 | ZAPP AG, Ratingen | 1) |
| BÖHLER V350 | voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg | 1) |
| V350 | voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf | 1) |
| Ovako 6140 | OVAKO STAHL GmbH, Erkrath | |
| 1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach |
Material Compliance
| REACh | RoHS |
|---|---|
| blur | blur |
FKM Guideline Fatigue Strength
| Condition | Nominal Size [mm] | Temperature [°C] | Number of Cycles | Tensile Strength [MPa] | Yield Strength [MPa] | Fatigue Limit under rev. Tension-Compression Stresses [MPa] | Fatigue Strength under pulsating Tensile Stresses [MPa] | Bending Fatigue Strength [MPa] | Shear Fatigue Strength [MPa] | Torsion Fatigue Strength [MPa] | Constant a for size factor Kd for yield stress Rp | Constant a for size factor Kd for tensile strength Rm | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2)3) |
| 1) Source: blur | |||||||||||||
| 2) Source: blur | |||||||||||||
| 3) 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 |
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 |
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 |
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 |
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 |
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 |