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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Successor VDA 231-106 classification
1.7033 (DIN 1654-4 : 1989-10) 34 Cr 4 1.7033 DIN 1654-4 : 1989-10 DIN 1654-4 : 1989-10 replaced by DIN EN 10263-4 : 2002-02 Replaced Germany 34Cr4 1.1.1 1)
1) Remark: The cold-upsettable steel 34 Cr 4 can be cold-formed with a medium to high rate of forming according to the usual forming methods on single-stage and multi-stage presses. It is used for hexagon screws and hexagon socket head cap screw of strength class 8.8 in the medium to thick dimension range and of strength class 10.9 in the thin to medium dimension range.

Chemical Composition

C [%] Cr [%] Mn [%] 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] Specimen Direction Tensile Strength [MPa] Yield Strength [MPa] Elongation A [%] Reduction of Area [%]
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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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Hardenability (Jominy test)

Condition Front Distance [mm] Hardness HRC
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Heat Treatment

Heat Treatment Step Temperature [°C] Medium
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Cross Reference

Material Name Country Standard
34 Cr 4 Belgium NBN 253-02
32 C 4 France NF A 35-557
530 M 32 Great Britain BS 970/1
35 Ch Russia GOST 4543
C 14 International ISO 4954-79
34 Cr 4 KB Italy UNI 7356
SCr 430 Japan JIS G 4104
30 H Poland PN H-84030/04
5132 USA ASTM A 322
34Cr4 Germany DIN EN 10263-4

Producer/Supplier/Trade names

Tradename Supplier
34 Cr 4 AG der Dillinger Hüttenwerke, Dillingen
34 Cr 4 ArcelorMittal Commercial Germany, Cologne
34 Cr 4 Hoesch Hohenlimburg GmbH, Hagen
34 Cr 4 Salzgitter Flachstahl GmbH, Salzgitter
34 Cr 4 ThyssenKrupp Steel Europe AG, Duisburg
34 Cr 4 voestalpine AG, Linz
34 Cr 4 Saarstahl AG, Völklingen
34 Cr 4 Georgsmarienhütte GmbH, Georgsmarienhütte
34 cr 4 Swiss Steel International GmbH, Düsseldorf
34 Cr 4 Dörrenberg Edelstahl GmbH, Engelskirchen
34 Cr 4 Walzwerke Einsal GmbH, Nachrodt
34 Cr 4 Willy Haecker GmbH, Hückeswagen
34 Cr 4 Hagenkötter GmbH & Co., Solingen
34 Cr 4 Chr. Höver & Sohn GmbH & Co KG, Lindlar
34 Cr 4 Platestahl Umformtechnik GmbH, Lüdenscheid
34 Cr 4 Friedrich Schulte Edelstahl, Essen
34 Cr 4 Hermann Stahlschmidt Stahlgesellschaft m. b. H., Willich
34 Cr 4 Stahlwerk Unna GmbH & Co.KG, Unna
34 Cr 4 SHW AG, Aalen
34 Cr 4 ZAPP AG, Ratingen
34 Cr 4 Haage Anagramm Technologien GmbH, Mülheim a. d. Ruhr
34 Cr 4 Bochumer Verein Verkehrstechnik GmbH, Bochum
34 Cr 4 ArcelorMittal Stahlhandel GmbH, Niederlassung Ravené, Berlin
34 Cr 4 C.D. Wälzholz GmbH & Co. KG, Hagen
34 Cr 4 Böllinghaus Steel GmbH, Hilden
34 Cr 4 BESSEY Tool GmbH & Co. KG, Bietigheim-Bissingen
34 Cr 4 WDI - Westfälische Drahtindustrie GmbH, Hamm
34 Cr 4 Vallourec Deutschland GmbH, Düsseldorf
34 Cr 4 ROPA STAHLVERTRIEB GMBH, Bad Bergzabern
34 Cr 4 Vallourec Deutschland GmbH, Mülheim
34 Cr 4 Stahlwerk Bous GmbH, Bous
Almenit 7033 Almenit, Mittelberg
BGH 7033 BGH Edelstahl Siegen GmbH
Buderus 34 Cr 4 Buderus Edelstahl GmbH, Wetzlar
DIRO-34 Cr 4 DIROSTAHL, Remscheid
Eschmann 7033 EschmannStahl GmbH, Reichshof-Wehnrath
Klöckner 34 Cr 4 Klöckner & Co SE, Duisburg
OVAKO 404 K OVAKO STAHL GmbH, Erkrath
SHG 7033 Swiss Steel International GmbH, Düsseldorf
TEW K 34 Cr 4 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
TS 34 Cr 4 ThyssenKrupp Schulte GmbH, Essen

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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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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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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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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