20MoCr4 | 1.7321 Material Datasheet

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Material Description

Material Number	Material Name	Material Number (single)	Standard	Scope	Standard Status	Country	Predecessor	Successor	VDA 231-106 classification
1.7321 (DIN EN 10263-3 : 2002-02)	20MoCr4	1.7321	DIN EN 10263-3 : 2002-02	DIN EN 10263-3 : 2002-02 replaced by DIN EN 10263-3 : 2018-02	Replaced	Germany	20 MoCr 4	20MoCr4	1.1.1	1)
1) Remark: The cold-upsettable steel 20MoCr5 is suitable for the manufacture of screws and nuts (soft-annealed condition with pre- and/or post treatment) used in automobile, motor and equipment construction and in general engineering. The steel finds additional use, amongst other things, for bevel gears, gear shafts, valve spring plates (for example in case-hardened condition).

Chemical Composition

C [%]	Cr [%]	Cu [%]	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]	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]	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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Hardenability (Jominy test)

Condition	Front Distance [mm]	Hardness HRC (+H grade)	Hardness HRC (+HH grade)	Hardness HRC (+HL grade)
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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]	Constant a for size factor Kd for yield stress Rp	Constant a for size factor Kd for tensile strength Rm
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Fracture Toughness

Temperature [°C]	Plane-Strain Fracture Toughness KIc [MPa*m^½]
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Cross Reference

Material Name	Country	Standard
4118	USA	SAE
G41180	USA	UNS

Producer/Supplier/Trade names

Tradename	Supplier
1.7321	INTERSTAHL Service GmbH, Wetter
1.7321	Rosswag GmbH, Pfinztal-Kleinsteinbach
1.7321	Wilhelm Jungermann GmbH, Remscheid
20MoCr	voestalpine AG, Linz
20MoCr4	Hoesch Hohenlimburg GmbH, Hagen
20MoCr4	Salzgitter Flachstahl GmbH, Salzgitter
20MoCr4	ThyssenKrupp Steel Europe AG, Duisburg
20MoCr4	Georgsmarienhütte GmbH, Georgsmarienhütte
20MoCr4	Buderus Edelstahl GmbH, Wetzlar
20MoCr4	Swiss Steel International GmbH, Düsseldorf
20MoCr4	Walzwerke Einsal GmbH, Nachrodt
20MoCr4	Hermann Stahlschmidt Stahlgesellschaft m. b. H., Willich
20MoCr4	Stahlwerk Unna GmbH & Co.KG, Unna
20MoCr4	C.D. Wälzholz GmbH & Co. KG, Hagen
20MoCr4	ROPA STAHLVERTRIEB GMBH, Bad Bergzabern
20MoCr4	Vallourec Deutschland GmbH, Düsseldorf
20MoCr4	Stahlwerk Annahütte Max Aicher GmbH & Co. KG, Hammerau
20MoCr4	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
20MoCr4	Tata Steel, IJmuiden
20MoCr4	Günther + Schramm GmbH, Oberkochen
20MoCr4	Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
20MoCr4	Sidenor Deutschland, Düsseldorf
20MoCr4	ASCOMETAL GmbH, Erkrath
20MoCr4	Hammerwerk Erft, G. Diederichs GmbH & Co. KG, Bad Münstereifel-Arloff
20MoCr4	Swiss Steel AG, Emmenbrücke
20MoCr4	Rohrwerk Maxhütte GmbH, Sulzbach-Rosenberg
BGH 7321	BGH Edelstahl Siegen GmbH
BÖHLER E 320	voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf
BÖHLER E320	voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg
CARBODUR 20MoCr4	Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
G-20 MoCr 4	BFG Feinguss Niederrhein GmbH, Moers
Klöckner 20MoCr4	Klöckner & Co SE, Duisburg
OVAKO 124 D	OVAKO STAHL GmbH, Erkrath
Plate 20MoCr4	Platestahl Umformtechnik GmbH, Lüdenscheid

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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Density

Temperature [°C]	Density [g/cm³]
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Linear-elastic

Temperature [°C]	Young's modulus [GPa]	Poisson's ratio
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Alternating stress

Temperature [°C]	Stress ratio	Alternating stress [MPa]	Cycles
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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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Thermal conductivity

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

Temperature [°C]	Specific electrical resistance [µΩm]
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Designation

Designation	Material number	Source
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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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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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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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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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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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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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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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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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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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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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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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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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20MoCr4 | 1.7321 Material Datasheet

Material Test Series Values

Material Standard Values

Material Models for Simulation

Material Description

Chemical Composition

Material Compliance

Mechanical Properties

Physical Properties

Hardenability (Jominy test)

FKM Guideline Fatigue Strength

Fracture Toughness

Cross Reference

Producer/Supplier/Trade names

20MoCr4 (1.7321; DIN EN 10263-3 : 2002-02)

Classification

Density

Linear-elastic

Tensile strength

Alternating stress

Coefficient thermal expansion

Specific heat

Thermal conductivity

Electrical resistivity

Designation

20MoCr4 (annealed to achieve spheroidized carbides (+AC); wire; 10.000-40.000mm)

Classification

Tensile strength

20MoCr4 (annealed to achieve spheroidized carbides (+AC); wire; 5.000-10.000mm)

Classification

Tensile strength

20MoCr4 (annealed to achieve spheroidized carbides, cold worked (+AC+C); wire; 10.000-40.000mm)

Classification

Tensile strength

20MoCr4 (annealed to achieve spheroidized carbides, cold worked (+AC+C); wire; 5.000-10.000mm)

Classification

Tensile strength

20MoCr4 (simulated case-hardened; bar; 16.000mm)

Classification

Tensile strength

20MoCr4 (untreated, cold drawn and annealed to achieve spheroidized carbides (+U+C+AC); wire; 10.000-40.000mm)

Classification

Tensile strength

20MoCr4 (untreated, cold drawn and annealed to achieve spheroidized carbides (+U+C+AC); wire; 2.000-5.000mm)

Classification

Tensile strength

20MoCr4 (untreated, cold drawn and annealed to achieve spheroidized carbides (+U+C+AC); wire; 5.000-10.000mm)

Classification

Tensile strength

20MoCr4 (untreated, cold drawn, annealed to achieve spheroidized carbides and skin passed (+U+C+AC+LC); wire; 10.000-40.000mm)

Classification

Tensile strength

20MoCr4 (untreated, cold drawn, annealed to achieve spheroidized carbides and skin passed (+U+C+AC+LC); wire; 2.000-5.000mm)

Classification

Tensile strength

20MoCr4 (untreated, cold drawn, annealed to achieve spheroidized carbides and skin passed (+U+C+AC+LC); wire; 5.000-10.000mm)

Classification

Tensile strength

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