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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Successor VDA 231-106 classification
1.8507 (DIN EN 10085 : 2001-07) 34CrAlMo5-10 1.8507 DIN EN 10085 : 2001-07 DIN EN 10085 : 2001-07 replaced by DIN EN ISO 683-5 : 2021-08 Replaced Germany 34CrAlMo5-10 1.1.1 1)
1) Remark: The heat-treatable steel 34CrAlMo5-10 is applicated for hot steam fitting parts of high fatigue limit. Suitable for dimensions up to 80 mm. Components: valve spindles and plates Further applications: plunger, piston rods, grinding and milling machine spindles, measuring instruments The steels contains nitriding agents (Cr and Al) 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 thermochemically treated (e.g. nitriding). The steel with a higher Al-content shows a tendency to increased decarburization. The forged part requires sufficient machining allowances so that the finished component can be supplied to the nitriding process decarburization-free.

Chemical Composition

Al [%] C [%] Cr [%] Mn [%] Mo [%] P [%] S [%] Si [%] Remainder
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Material Compliance

REACh RoHS
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength [MPa] Elongation A [%] Hardness HB | HBW Hardness HV
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Poisson's Ratio 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)]
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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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FKM Guideline Fatigue Strength

Semi-finished Product Condition Nominal Size [mm] 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]
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Heat Treatment

Heat Treatment Step Temperature [°C] Holding Time [h] Medium
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Cross Reference

Material Name Country Standard
34CrAlMo5-10 Europe EN 10085
33CrAlMo5-10 International 1)
34CrAlMo5-10 International ISO 683-5 1)
A355 Grade D USA ASTM A355 1)
K23510 USA UNS 1)
34CrAlMo5 1)
33CrAlMo5-10 International 1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename Supplier
1.8507 INTERSTAHL Service GmbH, Wetter
1.8507 Rosswag GmbH, Pfinztal-Kleinsteinbach
1.8507 ET Edelstahl-Trading GmbH, Willich
1.8507 Imet Industriemetall Handelsgesellschaft mbH, Hamburg
34 CrAlMo5 STM Stahl Vertriebs GmbH, Gräfelfing
34CrAlMo5 Hammerwerk Erft, G. Diederichs GmbH & Co. KG, Bad Münstereifel-Arloff
34CrAlMo5 Hoesch Hohenlimburg GmbH, Hagen
34CrAlMo5 Saarstahl AG, Völklingen
34CrAlMo5 Georgsmarienhütte GmbH, Georgsmarienhütte
34CrAlMo5 Swiss Steel International GmbH, Düsseldorf
34CrAlMo5 Walzwerke Einsal GmbH, Nachrodt
34CrAlMo5 Willy Haecker GmbH, Hückeswagen
34CrAlMo5 Hagenkötter GmbH & Co., Solingen
34CrAlMo5 Hermann Stahlschmidt Stahlgesellschaft m. b. H., Willich
34CrAlMo5 Haage Anagramm Technologien GmbH, Mülheim a. d. Ruhr
34CrAlMo5 C.D. Wälzholz GmbH & Co. KG, Hagen
34CrAlMo5 Vallourec Deutschland GmbH, Düsseldorf
34CrAlMo5 HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
34CrAlMo5 Tata Steel, IJmuiden
34CrAlMo5 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
34CrAlMo5 Sidenor Deutschland, Düsseldorf
34CrAlMo5 ASCOMETAL GmbH, Erkrath
34CrAlMo5 pauly STAHLHANDEL, Essen
34CrAlMo5-10 Buderus Edelstahl GmbH, Wetzlar
BGH 8507 BGH Edelstahl Siegen GmbH
BÖHLER V810SA voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg
DIRO-34CrAlMo5 DIROSTAHL, Remscheid
Klöckner 34CrAlMo5 Klöckner & Co SE, Duisburg
LK 5 AUBERT & DUVAL Deutschland GmbH, München
N 32 ZAPP AG, Ratingen
NITRODUR 34CrAIMo5 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
NS 13 Gustav Grimm Edelstahlwerk GmbH & Co. KG, Remscheid
Plate 34CrAlMo5 Platestahl Umformtechnik GmbH, Lüdenscheid

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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Tensile strength

Temperature [°C] Tensile strength [MPa]
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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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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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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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