34 CrMo 4 | 1.7220 Material Datasheet
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| Material Number | Material Name | Material Number (single) | Standard | Scope | Standard Status | Country | Successor | VDA 231-106 classification | Application temperature [°C] | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.7220 (DIN 17200 : 1987-03) | 34 CrMo 4 | 1.7220 | DIN 17200 : 1987-03 | DIN 17200 : 1987-03 replaced by DIN EN 10083-1/-2 : 1991-10 | Replaced | Germany | 34CrMo4 | 1.1.1 | ≥ -40 | 1) |
| 1) Remark: Steel 34 CrMo 4 is suitable for parts of high strength and ductility requirements at mean and higher heat-treatment sections (also heavy forged parts) in vehicle manufacturing, engine and machine engineering (e.g. shafts, wheel gears, steering knuckles). The steel shows a high specific mechanical resistance to static and dynamic load. Lowest application temp. -40 °C. |
Chemical Composition
| C [%] | Cr [%] | Mn [%] | Mo [%] | P [%] | S [%] | Si [%] | Remainder | |
|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| 1) Source: blur |
Material Compliance
| REACh | RoHS |
|---|---|
| blur | blur |
Mechanical Properties
| Semi-finished Product | Condition | Nominal Size [mm] | Temperature [°C] | Specimen Direction | Tensile Strength [MPa] | Yield Strength [MPa] | Elongation A [%] | Reduction of Area [%] | Hardness HB | HBW | |
|---|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| 1) Source: blur | ||||||||||
| 2) Remark: blur |
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)] | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 3)4) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 5)6) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 5)6) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 5)6) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 5)6) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 5)6) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 5)6) |
| 1) Source: blur | ||||||||||||
| 2) Source: blur | ||||||||||||
| 3) Source: blur | ||||||||||||
| 4) Remark: blur | ||||||||||||
| 5) Source: blur | ||||||||||||
| 6) Remark: blur |
Toughness Data (Impact)
| Condition | Nominal Size [mm] | Temperature [°C] | Specimen Shape | Specimen Direction | Notch Impact Energy [J] | |
|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) |
| 1) Source: blur |
Hardenability (Jominy test)
| Condition | Front Distance [mm] | Hardness HRC | |
|---|---|---|---|
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| blur | blur | blur | 1)2) |
| 1) Source: blur | |||
| 2) Remark: blur |
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1)2) |
| 1) Source: blur | ||||||||||||
| 2) Remark: blur |
Heat Treatment
| Heat Treatment | Step | Temperature [°C] | Medium | |
|---|---|---|---|---|
| blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | 1) |
| 1) Source: blur | ||||
| 2) Remark: blur |
Cross Reference
| Material Name | Country | Standard |
|---|---|---|
| 34 CrMo 4 | Belgium | NBN 253-02 |
| 35CrMo | China | GB 3077 |
| 34 CD 4 | France | NF A 35-552 |
| 708 M 32 | Great Britain | BS 970/1 |
| 35 ChM | Russia | GOST 4543 |
| 34 CrMo 4 | International | ISO 683/1-87 |
| 35 CrMo 4 | Italy | UNI 7845 |
| SCM 435 | Japan | JIS G 4105 |
| 35 HM | Poland | PN H-84030/04 |
| 2234 | Sweden | MNC 852 E |
| F.1250-35 CrMo 4 | Spain | UNE 36-012 |
| 4137 | USA | ASTM A 322 |
| 34CrMo4 | Germany | DIN EN 10083-1 |
Producer/Supplier/Trade names
| Tradename | Supplier |
|---|---|
| 34 CrMo 4 | AG der Dillinger Hüttenwerke, Dillingen |
| 34 CrMo 4 | ArcelorMittal Commercial Germany, Cologne |
| 34 CrMo 4 | Hoesch Hohenlimburg GmbH, Hagen |
| 34 CrMo 4 | Salzgitter Flachstahl GmbH, Salzgitter |
| 34 CrMo 4 | ThyssenKrupp Steel Europe AG, Duisburg |
| 34 CrMo 4 | voestalpine AG, Linz |
| 34 CrMo 4 | Saarstahl AG, Völklingen |
| 34 CrMo 4 | Georgsmarienhütte GmbH, Georgsmarienhütte |
| 34 CrMo 4 | Swiss Steel International GmbH, Düsseldorf |
| 34 CrMo 4 | Dörrenberg Edelstahl GmbH, Engelskirchen |
| 34 CrMo 4 | Walzwerke Einsal GmbH, Nachrodt |
| 34 CrMo 4 | Willy Haecker GmbH, Hückeswagen |
| 34 CrMo 4 | Hagenkötter GmbH & Co., Solingen |
| 34 CrMo 4 | Chr. Höver & Sohn GmbH & Co KG, Lindlar |
| 34 CrMo 4 | Platestahl Umformtechnik GmbH, Lüdenscheid |
| 34 CrMo 4 | Hermann Stahlschmidt Stahlgesellschaft m. b. H., Willich |
| 34 CrMo 4 | Stahlwerk Unna GmbH & Co.KG, Unna |
| 34 CrMo 4 | ZAPP AG, Ratingen |
| 34 CrMo 4 | Haage Anagramm Technologien GmbH, Mülheim a. d. Ruhr |
| 34 CrMo 4 | Bochumer Verein Verkehrstechnik GmbH, Bochum |
| 34 CrMo 4 | C.D. Wälzholz GmbH & Co. KG, Hagen |
| 34 CrMo 4 | Stahlrump GmbH & Co.KG, Iserlohn |
| 34 CrMo 4 | Böllinghaus Steel GmbH, Hilden |
| 34 CrMo 4 | ZOLLERN GmbH & Co. KG, Sigmaringen |
| 34 CrMo 4 | COGNE Edelstahl GmbH, Neuss |
| 34 CrMo 4 | ROPA STAHLVERTRIEB GMBH, Bad Bergzabern |
| 34 CrMo 4 | Vallourec Deutschland GmbH, Mülheim |
| 34 CrMo 4 | Vallourec Deutschland GmbH, Düsseldorf |
| 34 CrMo 4 | Stahlwerk Bous GmbH, Bous |
| 34 CrMo 4 BOEHLER V 330 | voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf |
| Almenit 7220 | Almenit, Mittelberg |
| BGH 7220 | BGH Edelstahl Siegen GmbH |
| Buderus 34 CrMo 4 | Buderus Edelstahl GmbH, Wetzlar |
| CHRONIMO 1.7220 | Chronimo Edelstahl GmbH, Barsbüttel |
| DIRO-34 CrMo 4 | DIROSTAHL, Remscheid |
| Klöckner 34 CrMo 4 | Klöckner & Co SE, Duisburg |
| OVAKO 323 A | OVAKO STAHL GmbH, Erkrath |
| TEW 34 CrMo 4 | Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten |
| TS 34 CrMo 4 | ThyssenKrupp Schulte GmbH, Essen |
| V 330 | voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg |