KR830001402A - 강질산용 고(高) 규소-크롬-닉켈강 - Google Patents

강질산용 고(高) 규소-크롬-닉켈강 Download PDF

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Publication number
KR830001402A
KR830001402A KR1019790004620A KR790004620A KR830001402A KR 830001402 A KR830001402 A KR 830001402A KR 1019790004620 A KR1019790004620 A KR 1019790004620A KR 790004620 A KR790004620 A KR 790004620A KR 830001402 A KR830001402 A KR 830001402A
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South Korea
Prior art keywords
weight
steel
chromium
nitric acid
content
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KR1019790004620A
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English (en)
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KR840000218B1 (ko
Inventor
나오야 이또
기이찌 사이또
다께시 요시다
마사히로 아오끼
마시오 오오구보
마사오시 미끼
Original Assignee
쓰지가따 다께시
스미또모 가가꾸 고오교 가부시끼 가이샤
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Publication date
Priority to JP16301478A priority Critical patent/JPS5591960A/ja
Priority to US06/103,922 priority patent/US4279648A/en
Priority to DE7979303031T priority patent/DE2965238D1/de
Priority to EP79303031A priority patent/EP0013507B2/en
Priority to AT79303031T priority patent/ATE3062T1/de
Application filed by 쓰지가따 다께시, 스미또모 가가꾸 고오교 가부시끼 가이샤 filed Critical 쓰지가따 다께시
Priority to KR7904620A priority patent/KR840000218B1/ko
Publication of KR830001402A publication Critical patent/KR830001402A/ko
Application granted granted Critical
Publication of KR840000218B1 publication Critical patent/KR840000218B1/ko

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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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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)
  • Heat Treatment Of Steel (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Catalysts (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

내용 없음

Description

강질산용 고(高) 규소-크롬-닉켈강
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 60℃의 액상 및 기상의 98% 농질산 중에서 C.Mn 및 Si의 일정한 함량과 Ni과 Cr 의 변화되는 함량을 갖는 증감화강재에 대한 평균부식율을 도시한 것이고,
제2도는 본 발명의 기본 조성을 갖는 본 발명의 기본강에 첨가 원소의 첨가량을 부식율과의 관계를 도시한 것이다.

Claims (10)

  1. 탄소 C0.03중량%, 규소 5중량%<Si7중량% 망간 Mn10중량%, 크롬 7중량%Cr16중량%, 니켈 10중량%Ni<19중량% 및 잔부가 철과 불순물로 조성됨을 특징으로 하는 가공성과 용접성이 양호하며 농질산에 내산성이있는 고(高) 규소-니켈-크롬강.
  2. 상기 니켈함량이 16중량%Ni18중량%임을 특징으로 하는 특허청구의 범위 제1항 기재의 강.
  3. 상기 크롬 함량이 8중량%Cr14.5중량%임을 특징으로 하는 특허청구의 범위 제1항 기재의 강.
  4. 상기 탄소함량이 C0.02중량%임을 특징으로 하는 특허청구 범위 제1항 기재의 강.
  5. 상기 규소함량이 5.5중량%Si6.5중량%임을 특징으로 하는 특허청구의 범위 제1항 기재의 강.
  6. 상기 니켈 함량이 16중량%Ni18중량%이고, 상기 크롬 함량이 8중량%Cr14.5중량%이며, 상기 규소함량이 5.5중량%Si6.5중량%임을 특징으로 하는 특허청구 범위의 제1항 기재의 강.
  7. 상기 강중에 티탄(Ti), 탄탈(Ta), 지르코늄(Zr) 및 니오븀 (Nb) 중에서 선택되는 1종 이상의 원소를 C(중량)%×4Ti,Ta,Zr 및 Nb 중의 1종 이상의 원소2중량%의 함량으로 추가로 함유시킴을 특징으로 하는 특허청구의 범위 제1항 기재의 강.
  8. 상기 추가원소가 지르코늄과 티탄의 조합임을 특징으로 하는 특허청구의 범위 제7항 기재의 강.
  9. 상기 특허청구 범위 제1항 기재의 강을 장치에 사용함을 특징으로 하여 고온의 기상 또는 액상의 농질산과 접촉되는 장치의 부식을 방지하는 방법.
  10. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR7904620A 1978-12-28 1979-12-27 내(耐)농질산용 고(高)규소-크롬-닉켈강 KR840000218B1 (ko)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP16301478A JPS5591960A (en) 1978-12-28 1978-12-28 High silicon-nickel-chromium steel with resistance to concentrated
US06/103,922 US4279648A (en) 1978-12-28 1979-12-17 High silicon chromium nickel steel for strong nitric acid
DE7979303031T DE2965238D1 (en) 1978-12-28 1979-12-21 High silicon chromium nickel steel and a method of using it to inhibit corrosion of apparatus by strong nitric acid
EP79303031A EP0013507B2 (en) 1978-12-28 1979-12-21 High silicon chromium nickel steel and a method of using it to inhibit corrosion of apparatus by strong nitric acid
AT79303031T ATE3062T1 (de) 1978-12-28 1979-12-21 Hochsiliziumhaltiger chrom-nickel-stahl und verfahren zu dessen verwendung zum verhindern von korrosion an apparaten durch starke salpetersaeure.
KR7904620A KR840000218B1 (ko) 1978-12-28 1979-12-27 내(耐)농질산용 고(高)규소-크롬-닉켈강

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16301478A JPS5591960A (en) 1978-12-28 1978-12-28 High silicon-nickel-chromium steel with resistance to concentrated
KR7904620A KR840000218B1 (ko) 1978-12-28 1979-12-27 내(耐)농질산용 고(高)규소-크롬-닉켈강

Publications (2)

Publication Number Publication Date
KR830001402A true KR830001402A (ko) 1983-04-30
KR840000218B1 KR840000218B1 (ko) 1984-02-29

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Family Applications (1)

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KR7904620A KR840000218B1 (ko) 1978-12-28 1979-12-27 내(耐)농질산용 고(高)규소-크롬-닉켈강

Country Status (6)

Country Link
US (1) US4279648A (ko)
EP (1) EP0013507B2 (ko)
JP (1) JPS5591960A (ko)
KR (1) KR840000218B1 (ko)
AT (1) ATE3062T1 (ko)
DE (1) DE2965238D1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100324266B1 (ko) * 1999-07-19 2002-02-25 구자홍 고체 표시소자용 유전체후막 조성물

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Also Published As

Publication number Publication date
JPS579626B2 (ko) 1982-02-22
EP0013507A1 (en) 1980-07-23
DE2965238D1 (en) 1983-05-19
EP0013507B1 (en) 1983-04-13
JPS5591960A (en) 1980-07-11
KR840000218B1 (ko) 1984-02-29
ATE3062T1 (de) 1983-04-15
EP0013507B2 (en) 1989-03-08
US4279648A (en) 1981-07-21

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