Posco Co., Ltd

Posco

Hyung Ki Park

Hyung Don Joo

Min Soo Han

Sang Woo Lee

Jin-Wook Seo

Chang-Soo Kim

Jin Wook Seo

Jae-Keun Shin

The present invention relates to a composition for forming an insulation coating film of an oriented electrical steel sheet, including a first component (A) including a composite metal phosphate, a derivative thereof, or a mixture thereof, and a second component (B) including at least two colloidal silicas having different average particle diameters, a method for forming an insulation coating film using the same, and an oriented electrical steel sheet having an insulation coating film formed thereon.

Composition for forming insulation film of oriented electrical steel sheet, method for forming insulation film by using same, and oriented electrical steel sheet having insulation film formed therein

A grain-oriented electrical steel sheet according to an embodiment of the present includes Si at 1.0 wt % to 7.0 wt %, C at 0.005 wt % or less (excluding 0 wt %), In at 0.001 wt % to 0.5 wt %, and the remainder including Fe and other impurities unavoidably added thereto.

Grain-oriented electrical steel sheet and manufacturing method therefor

An oriented electrical steel sheet according to an exemplary embodiment of the present invention includes Si: 2.0 to 7.0%, C: 0.005% or less (excluding 0%), Al: 0.05% or less (excluding 0%), N: 0.005% or less (excluding 0%), S: 0.005% or less (excluding 0%), a content of each of Ba and Y or a sum thereof: 0.001 to 0.3%, and Fe and other unavoidable impurities as a balance by wt %.

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Pohang-si, South Korea

Hyung Ki Park