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55 Cr 3 | 1.7176 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Scope Standard Status Country Successor Application temperature [°C] VDA 231-106 classification
1.7176 (DIN 17221 : 1988-12) 1.7176 DIN 17221 : 1988-12 DIN 17221 : 1988-12 replaced by DIN EN 10089 : 2003-04 Replaced Germany 55Cr3 -30 - 100 1.1 1)
1) Remark: The steel 55 Cr 3 is used for hot formed springs like plate springs, torsion springs, helical springs for autmotive engineering as well as for bigger tension or compression springs for special purposes.

Chemical Composition

C [%] Cr [%] Mn [%] P [%] S [%] Si [%]
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Mechanical Properties

Condition Temperature [°C] Specimen Direction Tensile Strength [MPa] Yield Strength [MPa] Elongation A [%] Hardness HB | HBW
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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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Heat Treatment

Heat Treatment Step Temperature [°C] Medium
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Cross Reference

Material Name Country Standard
55 Cr 3 Belgium NBN 253-05
55CrMnA China GB 1222
55 C 3 France NF A 35-371
525 A 60 Great Britain BS 970/2
50 ChGA Russia GOST 2052
7 International ISO 683/14-73
55 Cr 3 Italy UNI 3545
SUP 9 Japan JIS G 4801
2253 Sweden MNC 870
F.1431-55 Cr 3 Spain UNE 36-015
5155 USA ASTM A 322
55Cr3 Germany DIN EN 10089

Producer/Supplier/Trade names

Tradename Supplier
55 Cr 3 ArcelorMittal Commercial Germany, Cologne
55 Cr 3 Hoesch Hohenlimburg GmbH, Hagen
55 Cr 3 Salzgitter Flachstahl GmbH, Salzgitter
55 Cr 3 ThyssenKrupp Steel Europe AG, Duisburg
55 Cr 3 voestalpine AG, Linz
55 Cr 3 Saarstahl AG, Völklingen
55 Cr 3 Georgsmarienhütte GmbH, Georgsmarienhütte
55 Cr 3 Swiss Steel International GmbH, Düsseldorf
55 Cr 3 Walzwerke Einsal GmbH, Nachrodt
55 Cr 3 Stahlwerk Unna GmbH & Co.KG, Unna
55 Cr 3 C.D. Wälzholz GmbH & Co. KG, Hagen
55 Cr 3 Böllinghaus Steel GmbH, Hilden
55 Cr 3 ROPA STAHLVERTRIEB GMBH, Bad Bergzabern
55 Cr 3 BOEHLER F 300 voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf
Almenit 7176 Almenit, Mittelberg
BGH 7176 BGH Edelstahl Siegen GmbH
Buderus 55 Cr 3 Buderus Edelstahl GmbH, Wetzlar
Klöckner 55 Cr 3 Klöckner & Co SE, Duisburg
TEW 55 Cr 3 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten

Material Compliance

REACh RoHS
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Hardenability (Jominy test)

Front Distance [mm] Hardness HRC
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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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Strain life

Temperature [°C] Static hardening coefficient [MPa] Static hardening exponent Cyclic fatigue strength coefficient [MPa] Cyclic fatigue strength exponent Ductility coefficient [Pa] Ductility exponent Cyclic strength coefficient [MPa] Cyclic strain hardening exponent Young's modulus [GPa]
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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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