Verification of Material Suitability through Trial Production and Tube Evaluation
Significance of Hyundai Steel's 'Electric Furnace-Basic Oxygen Furnace Hybrid Process' Demonstration
Hyundai Steel announced on the 26th that it has confirmed the suitability of carbon-reduced thick plates and steel pipe structural materials for offshore wind power substructures, developed in collaboration with SeAH Steel.
Steel pipe products for offshore wind turbine substructures manufactured by SeAH Steel using carbon-reduced thick plates from Hyundai Steel. [Photo by Hyundai Steel]
Hyundai Steel produced offshore wind power thick plates with a yield strength of 355 MPa through the 'Electric Arc Furnace-Basic Oxygen Furnace (EAF-BOF) hybrid process,' which SeAH Steel then processed into steel pipes and conducted pipe evaluation. As a result, the products were judged to have quality equivalent to existing BOF products and passed the evaluation. Hyundai Steel's own tests showed that these thick plates have about a 12% carbon emission reduction effect compared to thick plates produced in 2021.
The EAF-BOF hybrid process is a production system Hyundai Steel revealed last year in its carbon neutrality roadmap. In the first phase, the method applies mixing carbon-reduced molten iron produced by the existing electric arc furnace into the blast furnace and converter process. In the second phase, the company plans to develop its proprietary new electric arc furnace and introduce steel with approximately 40% reduced carbon emissions to the market by 2030.
A Hyundai Steel official stated, "We plan to develop thick plates with even lower carbon emissions in the future," adding, "We intend to proactively supply carbon-reduced thick plate products to markets that require them, including the offshore wind power generation sector."
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