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KR960041394A - Ferritic stainless steel with excellent corrosion resistance and surface quality - Google Patents

Ferritic stainless steel with excellent corrosion resistance and surface quality Download PDF

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Publication number
KR960041394A
KR960041394A KR1019950012446A KR19950012446A KR960041394A KR 960041394 A KR960041394 A KR 960041394A KR 1019950012446 A KR1019950012446 A KR 1019950012446A KR 19950012446 A KR19950012446 A KR 19950012446A KR 960041394 A KR960041394 A KR 960041394A
Authority
KR
South Korea
Prior art keywords
ferritic stainless
less
stainless steel
corrosion resistance
surface quality
Prior art date
Application number
KR1019950012446A
Other languages
Korean (ko)
Other versions
KR0143482B1 (en
Inventor
박미남
유도열
박수호
Original Assignee
김만제
포항종합제철 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 김만제, 포항종합제철 주식회사 filed Critical 김만제
Priority to KR1019950012446A priority Critical patent/KR0143482B1/en
Publication of KR960041394A publication Critical patent/KR960041394A/en
Application granted granted Critical
Publication of KR0143482B1 publication Critical patent/KR0143482B1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Silencers (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

본 발명은 가전부품 및 자동차 배기 머플러에 사용되는 페라이트계 스테인레스강에 관한 것으로, 페라이트계 스테인레스강의 성분을 조정하고 그 성분원소들을 최적 조성범위로 제어함으로서, 내식성 및 표면품질이 우수한 페라이트계 스테인레스강을 제공하고자 하는데, 그 목적이 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to ferritic stainless steels used in home appliance parts and automobile exhaust mufflers. I want to provide it, and its purpose is.

상기한 목적을 달성하기 위한 본 발명은 중량%로, C:0.03% 이하, N;0.03% Si;1.0% 이하, Mn;0.4% 이하, Cr: 17~21%, Ti:0.01~0.3%, Nb;0.05~0.5%, Mo;0.5~2.0%, 나머지:Fe 및 기타 불가피 하게 첨가되는 불순물로 조성되며, 상기 Nb/Ti;2 이상이고 Ti+Nb:0.2~0.6% 범위인 것을 특징으로 하는 내식성 및 표면품질이 우수한 페라이트계 스테인레스강을 제공함을 그 요지로 한다.The present invention for achieving the above object by weight, C: 0.03% or less, N; 0.03% Si; 1.0% or less, Mn; 0.4% or less, Cr: 17-21%, Ti: 0.01-0.3%, Nb; 0.05 to 0.5%, Mo; 0.5 to 2.0%, the remainder: Fe and other inevitable impurities are added, the Nb / Ti; 2 or more characterized in that the Ti + Nb: 0.2 ~ 0.6% range It is an object of the present invention to provide ferritic stainless steel having excellent corrosion resistance and surface quality.

Description

내식성 및 표면품질이 우수한 페라이트계 스테인레스강Ferritic stainless steel with excellent corrosion resistance and surface quality

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

제1도는 본 발명이 적용된 발명재 및 비교재의 리징 높이를 나타내는 그래프, 제2도는 본 발명이 적용된 발명재(E) 및 비교재(1)의 판두께 중심부의 재결정 집합조직을 나타내는 극점도(pole figure)1 is a graph showing the ridging height of the invention and the comparative material to which the present invention is applied, and FIG. 2 is a pole figure showing the recrystallized texture of the center of the thickness of the inventive material (E) and the comparative material (1) figure)

Claims (1)

중량%로, C:0.03% 이하, N:0.03% 이하, Si:1.0% 이하, Mn:0.4% 이하, Cr:17~21%, Ti:0.01~0.3%, Nb:0.05~0.5%, Mo:0.5~2.0%, 나머지:Fe 및 기타 불가피하게 첨가되는 불순물로 조성되며, 상기 Nb/Ti:2 이상이고 Ti+Nb:0.2~0.6% 범위인 것을 특징으로 하는 내식성 및 표면품질이 우수한 페라이트계 스테인레스강.By weight%, C: 0.03% or less, N: 0.03% or less, Si: 1.0% or less, Mn: 0.4% or less, Cr: 17 to 21%, Ti: 0.01 to 0.3%, Nb: 0.05 to 0.5%, Mo : 0.5 to 2.0%, the rest: Fe and other inevitable impurity is added, the ferrite system excellent in corrosion resistance and surface quality, characterized in that the Nb / Ti: 2 or more and Ti + Nb: 0.2 ~ 0.6% range Stainless steel. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012446A 1995-05-18 1995-05-18 Ferritic stainless steel with excellent corrosion resistance and surface quality KR0143482B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950012446A KR0143482B1 (en) 1995-05-18 1995-05-18 Ferritic stainless steel with excellent corrosion resistance and surface quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950012446A KR0143482B1 (en) 1995-05-18 1995-05-18 Ferritic stainless steel with excellent corrosion resistance and surface quality

Publications (2)

Publication Number Publication Date
KR960041394A true KR960041394A (en) 1996-12-19
KR0143482B1 KR0143482B1 (en) 1998-08-17

Family

ID=19414833

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950012446A KR0143482B1 (en) 1995-05-18 1995-05-18 Ferritic stainless steel with excellent corrosion resistance and surface quality

Country Status (1)

Country Link
KR (1) KR0143482B1 (en)

Also Published As

Publication number Publication date
KR0143482B1 (en) 1998-08-17

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