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34CrMo4 | 1.7220 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
1.7220 (DIN EN 10297-1 : 2003-06) 34CrMo4 1.7220 DIN EN 10297-1 : 2003-06 Supersedes DIN 17204 : 1990-11 and with DIN EN 10208-1 : 1998-02, DIN EN 10216-1 : 2002-08 and DIN EN 10224 : 2005-12 replacement for DIN 1629 : 1984-10 Valid Germany 34 CrMo 4 1.1.1 1)
1) Remark: Seamless steel tube made of 34CrMo4 will be meanly used for construction elements and will be delivered in the quenched and tempered condition (+QT). Typical application areas are mechanical engineering, common technical applications, vehicle construction and the furniture industry. The material is weldable.

Chemical Composition

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] 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] Shear 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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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
35CrMo China GB/T 8162 1)
A30352 China GB/T 8162 1)
34CrMo4 Europe EN 10297-1
SCM435TK Japan JIS G 3441 1)
SCM435TK South Korea KS D 3574 1)
A519 Grade 4135 USA ASTM A519 2)
A519 Grade 4137 USA ASTM A519 2)
4135 USA AISI 2)
4137 USA AISI 2)
Grade 4135 USA AISI 2)
Grade 4137 USA AISI 2)
G41350 USA UNS 2)
G41370 USA UNS 2)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008

Producer/Supplier/Trade names

Tradename Supplier
34CrMo4 Swiss Steel International GmbH, Düsseldorf
34CrMo4 H. Kleineberg GmbH, Stelle
34CrMo4 Vallourec Deutschland GmbH, Düsseldorf
34CrMo4 voestalpine AG, Linz
34CrMo4 HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
34CrMo4 Klöckner & Co SE, Duisburg
34CrMo4 Hammerwerk Erft, G. Diederichs GmbH & Co. KG, Bad Münstereifel-Arloff
34CrMo4 Imet Industriemetall Handelsgesellschaft mbH, Hamburg
34CrMo4 Eisen-Heinzl GmbH, Selb-Erkersreuth
34CrMo4 SIJ MWT GmbH, Landsberg am Lech
34CrMo4 Wilhelm Oberste-Beulmann GmbH & Co. KG, Remscheid
34CrMo4 pauly STAHLHANDEL, Essen
34CrMo4 Rohrwerk Maxhütte GmbH, Sulzbach-Rosenberg