KR970006532A - Nitrogenated austenitic stainless steel with excellent hot workability - Google Patents

Nitrogenated austenitic stainless steel with excellent hot workability Download PDF

Info

Publication number
KR970006532A
KR970006532A KR1019950019663A KR19950019663A KR970006532A KR 970006532 A KR970006532 A KR 970006532A KR 1019950019663 A KR1019950019663 A KR 1019950019663A KR 19950019663 A KR19950019663 A KR 19950019663A KR 970006532 A KR970006532 A KR 970006532A
Authority
KR
South Korea
Prior art keywords
less
austenitic stainless
stainless steel
hot workability
present
Prior art date
Application number
KR1019950019663A
Other languages
Korean (ko)
Other versions
KR0143476B1 (en
Inventor
김영환
이종석
Original Assignee
김종진
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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.)
Filing date
Publication date
Application filed by 김종진, 포항종합제철 주식회사, 신창식, 재단법인 산업과학기술연구소 filed Critical 김종진
Priority to KR1019950019663A priority Critical patent/KR0143476B1/en
Publication of KR970006532A publication Critical patent/KR970006532A/en
Application granted granted Critical
Publication of KR0143476B1 publication Critical patent/KR0143476B1/en

Links

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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

본 발명은 질소첨가 오스테나이트계 스테인레스강에 관한 것으로, 질소 첨가 오스테나이트계 스테인레스강에 있어서, 그 성분중 특히 Mo와 N의 함량을 적절히 제어하므로서 내화물 과다용손, 별도 설비의 설치, 공정부하 및 노즐막힘 및 내식성 저하등과 같은 문제점의 수반없이 열간가공시 우수한 질소첨가 오스테나이트계 스테인레스강을 제공하고자 하는데, 그 목적이 있다.The present invention relates to nitrogenous austenitic stainless steels, in which nitrogen-containing austenitic stainless steels contain excessive amounts of refractory excess, installation of separate equipment, process loads, and nozzles by appropriately controlling the content of Mo and N among the components. An object of the present invention is to provide an excellent nitrogenous austenitic stainless steel during hot working without accompanying problems such as clogging and deterioration of corrosion resistance.

상기한 목적을 달성하기 위한 본 발명은 중량%로, C:0.08% 이하, Si:1.0% 이하, Mn:2.0% 이하, P:0.02~0.04%, S:25ppm 이하, Ni:6~11%, Cr:16~20%, O:100ppm 이하, N:0.04~0.2%, Mo:0.15% 이하, 및 나머지:Fe로 조성됨을 특징으로 하는 열간가공성이 우수한 질소첨가 오스테나이트계 스테인레스강을 제공함을 그 요지로 한다.The present invention for achieving the above object by weight, C: 0.08% or less, Si: 1.0% or less, Mn: 2.0% or less, P: 0.02 to 0.04%, S: 25ppm or less, Ni: 6-11% , Ni: austenitic stainless steel with excellent hot workability, characterized in that the composition: Cr: 16 ~ 20%, O: 100ppm or less, N: 0.04 ~ 0.2%, Mo: 0.15% or less, and the rest: Fe That's the point.

Description

열간가공성이 우수한 질소첨가 오스테나이트계 스테인레스강Nitrogenated austenitic stainless steel with excellent hot workability

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명이 적용된 발명재 및 이를 벗어난 비교재의 1100℃에서의 단면 감소율을 나타낸 그래프, 제2도는 본 발명이 적용된 발명재(1,2) 및 이를 벗어난 비교재(2)의 미세조직사진.1 is a graph showing the cross-sectional reduction rate at 1100 ℃ of the invention material and the comparative material to which the present invention is applied, Figure 2 is a microstructure photograph of the invention material (1,2) and the comparative material (2) to which the present invention is applied .

Claims (1)

중량%로, C:0.08% 이하, Si:1.0% 이하, Mn:2.0% 이하, P:0.02~0.04%, S:25ppm 이하, Ni:6~11%, Cr:16~20%, O:100ppm 이하, N:0.04~0.2%, Mo:0.15% 이하, 및 나머지:Fe로 조성됨을 특징으로 하는 열간가공성이 우수한 질소첨가 오스테나이트계 스테인레스강.By weight%, C: 0.08% or less, Si: 1.0% or less, Mn: 2.0% or less, P: 0.02 to 0.04%, S: 25 ppm or less, Ni: 6 to 11%, Cr: 16 to 20%, O: Nitrogenous austenitic stainless steel having excellent hot workability, characterized in that it is composed of 100 ppm or less, N: 0.04 to 0.2%, Mo: 0.15% or less, and the remainder: Fe. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950019663A 1995-07-05 1995-07-05 Austenite stainless steel with excellent hot working KR0143476B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950019663A KR0143476B1 (en) 1995-07-05 1995-07-05 Austenite stainless steel with excellent hot working

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950019663A KR0143476B1 (en) 1995-07-05 1995-07-05 Austenite stainless steel with excellent hot working

Publications (2)

Publication Number Publication Date
KR970006532A true KR970006532A (en) 1997-02-21
KR0143476B1 KR0143476B1 (en) 1998-08-17

Family

ID=19419856

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950019663A KR0143476B1 (en) 1995-07-05 1995-07-05 Austenite stainless steel with excellent hot working

Country Status (1)

Country Link
KR (1) KR0143476B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000000092A (en) * 1999-09-11 2000-01-15 이남성 Method of preparing pvc resin by using scoria powder
KR100411286B1 (en) * 1996-12-24 2004-04-03 주식회사 포스코 High strength austenitic stainless steel having superior corrosion resistance and weatherability and method for manufacturing steel sheet using the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101406484B1 (en) * 2012-03-21 2014-06-12 주식회사 포스코 Stainless steel having excellent pitting corrosion resistance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100411286B1 (en) * 1996-12-24 2004-04-03 주식회사 포스코 High strength austenitic stainless steel having superior corrosion resistance and weatherability and method for manufacturing steel sheet using the same
KR20000000092A (en) * 1999-09-11 2000-01-15 이남성 Method of preparing pvc resin by using scoria powder

Also Published As

Publication number Publication date
KR0143476B1 (en) 1998-08-17

Similar Documents

Publication Publication Date Title
KR960034448A (en) High-strength hot-rolled steel sheet with excellent toughness and its manufacturing method
WO1996039543A3 (en) Duplex stainless steel, and its manufacturing method
MY132175A (en) Supermartensitic stainless steel having high mechanical strength and corrosion resistance and relative manufactured articles
KR950000912A (en) Martensitic stainless steel with improved machinability
KR910021491A (en) Stainless steel
JPS5681658A (en) Austenitic alloy pipe with superior hot steam oxidation resistance
US4102677A (en) Austenitic stainless steel
KR970006532A (en) Nitrogenated austenitic stainless steel with excellent hot workability
DE69907896D1 (en) COLD STEEL
JPS5616653A (en) Soft magnetic material having superior workability and machinability
JPS552743A (en) Steel excellent in damping performance and manufacture thereof
JPS56119759A (en) High tensile steel with superior sulfide corrosion crack resistance
JPS5541929A (en) Steel for high efficiency welding and low temperature use
JPS56158850A (en) Ferrite stainless steel with superior corrosion resistance, formability and weldability
JPS55134156A (en) Steel products for oil well pipe having superior sulfide stress corrosion crack resistance and tensile strength of 60kg/mm2 or more
JPS57131350A (en) Low alloy cr-mo steel for pressure vessel
JPS57164971A (en) Austenite steel with superior strength at high temperature
EP0205693B1 (en) Special steels and their method of preparation
JPS5662947A (en) Ferritic stainless steel with superior corrosion resistance for bright annealing finish
JPS57192247A (en) Steel excellent in sulfide stress corrosion cracking resistance for high strength oil well pipe
KR940005823A (en) P-added Fe-Cr alloy with excellent corrosion resistance
KR920012503A (en) Chromium-containing steel sheet with excellent corrosion resistance and workability
JPS56169751A (en) Heat treated steel with low strain
JPS575846A (en) Low-alloyed steel having sweet corrosion resistance
JPS55104459A (en) Spring stainless steel with superior producibility

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130405

Year of fee payment: 16

FPAY Annual fee payment

Payment date: 20140409

Year of fee payment: 17

EXPY Expiration of term