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ANSWER: EN10338 is the European standard applies to hot rolled and cold rolled non-coated steel flat products made of multiphase steels for cold forming. It covers cold rolled steel products of thickness t less than 3mm and hot rolled products of thickness t not more than 6mm.
EN10338 HCT780C is cold rolled non coated steel flat material made of multiphase steel for cold forming.
HCT780C is complex-phase quality steel, means steel with a multiphase microstructure containing mainly bainite, ferrite, whereas martensite tempered martensite, retained austenite and pearlite maybe present as additional phases. The delivery condition of HCT780C is normally supplied in the skin-passed condition.
The material of No. Of HCT780C is 1.0954.
Proof strength of HCT780C is 570-720MPa, Tensile strength is min 780MPa, Elongation A80 is min 10%. Bake hardening index BH2 is min 30MPa.
