JFE Steel Develops Hot Continuous Rolling Process for HITEN
JFE Steel Corporation has developed the world’s first hot-continuous rolling, endless rolling process for high tensile strength steel HITEN. Mass production
JFE Steel Corporation has developed the world’s first hot-continuous rolling, endless rolling process for high tensile strength steel HITEN. Mass production has already started at the hot rolling mill of JFE Steel’s Chiba facility, part of the company’s East Japan Works, for the highly stable and productive manufacturing of high tensile steel.
In 1996, JFE Steel developed the world’s first endless rolling process in which the leading and trailing ends of adjacent sheets that have been wound into coils are joined after roughing, which allows the coils to be inserted continuously into the finishing mill. The endless rolling process has been deployed at JFE Steel’s Chiba facility.
In the case of HITEN, however, joint strength and ductility are reduced due to elements such as silicon and manganese being added to improve the mechanical characteristics of these steel products. JFE Steel has now developed technology for maintaining joint strength and ductility and suppressing breakage during finish rolling. As a result, endless rolling of high-strength steel has become possible, contributing greatly to the highly stable and productive manufacturing of high-tensile steel through improved threading performance.
JFE Steel, aiming to contribute to a more sustainable and carbon-neutral world, is committed to developing innovative production technologies, including for high-performance HITEN required for lighter-weight and more collision-safe automobiles, as well as expanding its supply of eco-minded products.