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Material Description

Material Number Material Name Standard Scope Standard Status Country Predecessor VDA 231-106 classification
HR420LA (VDA 239-100 : 2024-05) HR420LA VDA 239-100 : 2024-05 Supersedes VDA 239-100 : 2016-05 Valid Germany HR420LA 1.1.1 1)
1) Remark: Hot rolled high strength low alloy steel sheet for cold forming.

Chemical Composition

Al [%] C [%] Cu [%] Mn [%] Nb [%] P [%] S [%] Si [%] Ti [%] Remainder
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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 [%] Elongation A50 [%] Elongation A80 [%]
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Physical Properties

Temperature [°C] Density [g/cm³] Young's 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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Formability - Bending - Folding

Condition Temperature [°C] Specimen Direction Bend Factor
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Cross Reference

Material Name Country Standard
HX420LAD China GB/T 2518 1)
S420MC Europe EN 10149-2 2)
HX420LAD Europe EN 10346 2)
H420LAD Europe 1)
QStE 420 TM Germany 1)
1.0980
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: ArcelorMittal, Mikrolegierte Kaltumformstähle, 03/2017

Producer/Supplier/Trade names

Tradename Supplier
HSLA 420 ArcelorMittal Commercial Germany, Cologne
HR420LA Salzgitter Flachstahl GmbH, Salzgitter
perform 420 ThyssenKrupp Steel Europe AG, Duisburg
HR420LA voestalpine AG, Linz