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HCT780X | 1.0943 Material Datasheet

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Material Description

Material Number	Material Number (single)	Standard	Range of Application	Standard Status	Country	Predecessor
1.0943 (DIN EN 10346 : 2015-10)	1.0943	DIN EN 10346 : 2015-10	Supersedes DIN EN 10346 : 2009-07	Valid	Germany	HCT780X	1)
1) Remark: The cold-rolled dual phase steel HCT780X is a steel for cold forming with a minimum tensile strength of 780 N/mm².

Chemical Composition

Al [%]	B [%]	C [%]	Mn [%]	P [%]	S [%]	Si [%]	V [%]	Cr+Mo [%]	Nb+Ti [%]
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Mechanical Properties

Semi-finished Product	Condition	Nominal Size [mm]	Temperature [°C]	Specimen Direction	Tensile Strength [MPa]	Yield Strength (0.2% offset) [MPa]	Elongation A80 [%]	Bake-Hardening-Index [MPa]
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Welding and Joining

Welding and Joining - Evaluation
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Cross Reference

Material Name	Country	Standard
HC450/780DPD	China	GB/T 2518	1)
HC470/780DPD	China	GB/T 2518	1)
HC500/780DPD	China	GB/T 2518	1)
CR440Y780T-DP	Germany	VDA 239-100	2)
HCT780X	Europe	EN 10346
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: Salzgitter Flachstahl GmbH, Multiphase steel

Producer/Supplier/Trade names

Tradename	Supplier
Dual Phase 780 Y450	ArcelorMittal Distribution GmbH, Köln
Litec 800DP	Ruukki Deutschland GmbH, Duisburg
HC450XD	Salzgitter Flachstahl GmbH, Salzgitter
DP-K45/78	ThyssenKrupp Steel Europe AG, Duisburg

Material Compliance

REACh	RoHS
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Linear-elastic

Temperature [°C]	Young's modulus [GPa]	Bulk modulus [GPa]	Shear modulus [GPa]	Poisson's ratio
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Alternating stress

Temperature [°C]	Stress ratio	Mean stress [MPa]	Alternating stress [MPa]	Cycles
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Designation

Designation	Material number	Source
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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