내표면 균열 감수성이 우수한 슬래브 및 그 연속 주조 방법

• Main Authors: TAGUCHI KENJI, TAKAYA SHIN, KATO YUICHIRO
• Format: Patent
• Language: Korean
• Published: 01.11.2022
• Subjects: ALLOYS; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

이 슬래브는, C를 0.02질량％ 내지 0.50질량％, Al을 0.20질량％ 내지 2.00질량％ 함유하는 고Al강의 슬래브이며, [Zr], [Al], [N]을 각각 상기 슬래브에서의 함유량(질량％)으로 한 경우에, [Zr]≥4/3×[Al]×[N]의 관계를 만족시킨다. This slab is a slab of high-Al steel containing C: 0.02 mass% to 0.50 mass% and Al: 0.20 mass% to 2.00 mass%, in which, in a case where [Zr], [Al], and [N] each represent a content (mass%) in the slab, a Zr content satisfies a relationship of [Zr] ≥ 4/3 × [Al] × [N].