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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 Successor
1.0943 (DIN EN 10336 : 2007-07) 1.0943 DIN EN 10336 : 2007-07 DIN EN 10336 : 2007-07 replaced by DIN EN 10346 : 2009-07 Replaced Germany HCT780X 1)
1) Remark: The cold-rolled dualphase steel HCT450X has a minimum tensile strength of 450 N/mm². It will be delivered as continuously hot-dip coated and electrolytically coated strip and sheet in thicknesses from 0.35 mm to 3.0 mm with zinc (Z and ZE), zinc-iron (ZF) or zinc-nickel (ZN) coatings. The dual-phase steel has a ferritic base structure with a secondary martensitic phase (possibly bainitic secondary phase). It offers special advantages regarding weight saving production of cold formed and corrosion resistant components in the automotive engineering like wheels, chassis parts, body reinforcements, bumper, profiles etc. because of the good dynamic behaviour the steel is applicated for dynamic loaded parts. The high hardening ability leads to a strong increase of the component yield strength.

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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Cross Reference

Material Name Country Standard
HCT780X Europe EN 10346

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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