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X12CrNiMoV12-3 | 1.4938 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Standard Status Country Application temperature [°C] VDA 231-106 classification
1.4938 (DIN EN 4825 : 2021-09) 1.4938 DIN EN 4825 : 2021-09 Valid Germany ≤ 550 1.1 1)
1) Remark: Stainless high-temperature quenched and tempered steel bars up to 150 mm with a tensile strength of 900 to 1100 MPa for aerospace applications. The material is also listed with the material number 1.4939. Application: compressor parts of engines, disks, blades, bolts, screws and housing parts up to about 550 °C The weldable steel is resistant to corrosion only in normal atmosphere in polished or finely ground condition, otherwise it has limited resistance.

Chemical Composition

C [%] Cr [%] Mn [%] Mo [%] N [%] Ni [%] P [%] S [%] Si [%] V [%]
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Specimen Direction Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A [%] Reduction of Area [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Specific Electrical Resistance [µΩm] Mean Specific Heat Capacity [kJ/(kg*K)] Electric Conductivity [MS/m] Magnetizeability
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Welding and Joining

Procedure Welding and Joining - Evaluation Preheating [°C] Working Temperature [°C]
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Toughness Data (Impact)

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Specimen Shape Specimen Direction Notch Impact Energy [J]
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Heat Treatment

Heat Treatment Step Temperature [°C] Medium
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Cross Reference

Material Name Country Standard
1.4939.6 Germany WL 1.4939-2
X12CrNiMoV12-3 Europe EN 4825
1.4933 Europe EN 2278
FE-PM37 Europe EN 2279
1.4938 Europe EN 10088
FE-PM37 Europe AECMA
S64152 USA UNS 1)
Jethete M-152 USA AMS 5718 1)
Jethete M-152 USA AMS 5719 1)
A484 Grade XM-32 USA ASTM A484 1)
XM-32 USA ASTM A484 1)
S64152 USA UNS 1)
S151 Great Britain BS S151 1)
2 S205 Great Britain BS 2 S205 1)
X12CrNiMoVN12 1)
C50TF68 USA GE Aviation 2)
DMD0242-20 France Safran Aircraft Engines 2)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: Aerospace Materials, voestalpine BÖHLER Aerospace GmbH & Co KG, Kapfenberg/Austria, 2022

Producer/Supplier/Trade names

Tradename Supplier
Jethete M152 Aircraftmaterialsuk.com Ltd, Stokenchurch
X 13 VD AUBERT & DUVAL Deutschland GmbH, München 1)
BGH 4938 BGH Edelstahl Siegen GmbH 1)
1.4938 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten 1)
BÖHLER T552 voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg 1)
T552 voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf 1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Material Compliance

REACh RoHS
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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Alternating stress

Temperature [°C] Stress ratio Mean stress [MPa] Alternating stress [MPa] Cycles
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Electrical resistivity

Temperature [°C] Specific electrical resistance [µΩm]
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Coefficient thermal expansion

Related Temperature [°C] Temperature [°C] Coefficient thermal expansion [10^-6*K^-1]
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Specific heat

Temperature [°C] Specific heat [kJ/(kg*K)]
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Density

Temperature [°C] Density [g/cm³]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Thermal conductivity

Temperature [°C] Thermal conductivity [W/(m*K)]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Designation

Designation Material number Source
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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