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20NiCrMo2-2 | 1.6523 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
1.6523 (DIN EN ISO 683-3 : 2019-04) 20NiCrMo2-2 1.6523 DIN EN ISO 683-3 : 2019-04 DIN EN ISO 683-3 : 2019-04 replaced by DIN EN ISO 683-3 : 2022-06 Replaced Germany 20NiCrMo2-2 20NiCrMo2-2 1.1.1 1)
1) Remark: Steel 20NiCrMo2-2 is suitable for parts in vehicle manufacturing and machine engineering, which are wear loaded at mean core strength, high ductility and fatigue strength (e.g. gear wheels, shafts, axles).

Chemical Composition

C [%] Cr [%] Cu [%] Mn [%] Mo [%] Ni [%] 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] Yield Strength [MPa] Elongation A [%] Reduction of Area [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Shear 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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Heat Treatment

Heat Treatment Step Temperature [°C] Holding Time [h]
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Cross Reference

Material Name Country Standard
8620H Australia AS 1444 1)
20CrNiMoH China GB/T 5216 2)
A50205 China GB/T 5216 2)
1.6523 Europe EN 10084 2)
20NiCrMo2-2 Europe EN 10084 2)
20NiCrMo2-2 Europe EN ISO 683-3
20Ni2Cr2Mo2(-S) India IS 4432 1)
20NiCrMo2-2 International ISO 683-3
SNCM220 Japan JIS G 4052 2)
SNCM220H Japan JIS G 4052 2)
20ChGNM Russia GOST 4543 1)
20ХГНM Russia ГОСТ 4543 1)
SNCM220H South Korea KS D 3754 1)
A304 Grade 8620H USA ASTM A304 1)
A914 Grade 8620H USA ASTM A914 1)
H86200 USA UNS 1)
G86200 USA UNS 1)
8620H USA SAE 1)
21NiCrMo2 Germany 1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: EN ISO 683-3:2019-02

Producer/Supplier/Trade names

Tradename Supplier
JD 19 AUBERT & DUVAL Deutschland GmbH, München 1)
BGH 6523 BGH Edelstahl Siegen GmbH 1)
Carbodur 6523 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten 1)
20NiCrMo2-2 Georgsmarienhütte GmbH, Georgsmarienhütte 1)
20NiCrMo2-2 HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach 1)
20NiCrMo2-2 pauly STAHLHANDEL, Essen 1)
20NiCrMo2-2 Schmiedewerke Gröditz GmbH, Gröditz 1)
20NiCrMo2-2 Stahlwerk Annahütte Max Aicher GmbH & Co. KG, Hammerau 1)
20NiCrMo2-2 ThyssenKrupp Schulte GmbH, Essen 1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach