KR960017887A

KR960017887A - High weatherability steel that reduces the occurrence of cracks on the surface of continuous cast pieces during continuous casting

Info

Publication number: KR960017887A
Application number: KR1019940030413A
Authority: KR
Inventors: 강성린; 김만래
Original assignee: 김만제; 포항종합제철 주식회사
Priority date: 1994-11-18
Filing date: 1994-11-18
Publication date: 1996-06-17

Abstract

본 발명은 콘테이너 소재등에 사용되는 고내후성강에 관한 것으로써, 고내후성강의 성분중 C 및 Si의 함량을 적절히 제어함으로써 연속주조시 연속주조 주편의 표면크랙(면세로크랙)의 발생방지와 브레이크 아웃을 방지할 수 있는 고내후성강을 제조하고자 하는데, 그 목적이 있다.The present invention relates to high weathering steel used in container materials, etc., by appropriately controlling the content of C and Si in the components of the high weathering steel to prevent the occurrence of surface cracks (face-to-side cracks) of the continuous casting cast during continuous casting and breakout To manufacture a high weather resistance steel that can prevent, the purpose is.

본 발명은 wt%로, C : 0.06~0.09%, Si : 0.30~0.55%, Mn : 0.30~0.45%, P : 0.100~0.115%, S : 0.010% 이하, Sol.Al : 0.005~0.040%, Cu : 0.25~0.35%, Cr : 0.35~0.55%, Ni : 0.10~0.20%, 잔부 Fe 및 기타 불가피한 불순물로 조성되는 연속주조시 연속주조주편 표면 크랙의 발생이 저감되는 고 내후성 강을 그 요지로 한다.The present invention is wt%, C: 0.06 to 0.09%, Si: 0.30 to 0.55%, Mn: 0.30 to 0.45%, P: 0.100 to 0.115%, S: 0.010% or less, Sol.Al: 0.005 to 0.040%, Its main purpose is high weathering steel, which reduces the occurrence of surface cracks in continuous cast pieces during continuous casting composed of Cu: 0.25 ~ 0.35%, Cr: 0.35 ~ 0.55%, Ni: 0.10 ~ 0.20%, balance Fe and other unavoidable impurities. do.

Description

High weatherability steel that reduces the occurrence of cracks on the surface of continuous cast pieces during continuous casting

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims

wt%, C: 0.06 to 0.09%, Si: 0.30 to 0.55%, Mn: 0.30 to 0.45%, P: 0.100 to 0.115%, S: 0.010% or less, Sol.Al: 0.005 to 0.040%, Cu: 0.25 ~ 0.35%, Cr: 0.35 to 0.55%, Ni: 0.10 to 0.20%, high weather resistance steel that reduces the occurrence of surface cracks in continuous cast pieces during continuous casting composed of residual Fe and other unavoidable impurities

※ Note: The disclosure is based on the initial application.