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HR550LA Material Datasheet

Material Standard Values

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Material Description

Material Number	Material Name	Standard	Scope	Standard Status	Country	Predecessor	VDA 231-106 classification
HR550LA (VDA 239-100 : 2024-05)	HR550LA	VDA 239-100 : 2024-05	Supersedes VDA 239-100 : 2016-05	Valid	Germany	HR550LA	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
S550MC	Europe	EN 10149-2	1)
QStE 550 TM	Germany		2)
1.0986
1) Source: ArcelorMittal, Mikrolegierte Kaltumformstähle, 03/2017
2) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename	Supplier
HSLA 550	ArcelorMittal Commercial Germany, Cologne
DOCOL HR550LA	SSAB EMEA AB, Borlänge
HR550LA	Salzgitter Flachstahl GmbH, Salzgitter
perform 550	ThyssenKrupp Steel Europe AG, Duisburg
HR550LA	voestalpine AG, Linz