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34CrAlMo5-10 | 1.8507 Material Datasheet

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Material Description

Material Number	Material Name	Material Number (single)	Standard	Scope	Standard Status	Country	Predecessor	VDA 231-106 classification
1.8507 (DIN EN ISO 683-5 : 2021-08)	34CrAlMo5-10	1.8507	DIN EN ISO 683-5 : 2021-08	Supersedes DIN EN 10085 : 2001-07	Valid	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)

Condition	Nominal Size [mm]	Temperature [°C]	Specimen Shape	Specimen Direction	Notch Impact Energy [J]
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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]
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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	Germany	DIN 743-3
34CrAlMo5-10	Europe	EN ISO 683-5
34CrAlMo5-10	International	ISO 683-5
33CrAlMo5-10	International		1)
A355 Grade D	USA	ASTM A355	1)
K23510	USA	UNS	1)
Grade D	USA		1)
34CrAlMo5			1)
33CrAlMo5-10	International		1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename	Supplier
LK 5	AUBERT & DUVAL Deutschland GmbH, München	1)
DE 8507	Dörrenberg Edelstahl GmbH, Engelskirchen	1)
Nitrodur 8507	Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten	1)
BÖHLER V810	voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg	1)
V810	voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg	1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

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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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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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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