ES8507186A1 - prodn. of high chromium-low carbon steel - Google Patents

prodn. of high chromium-low carbon steel

Info

Publication number
ES8507186A1
ES8507186A1 ES525735A ES525735A ES8507186A1 ES 8507186 A1 ES8507186 A1 ES 8507186A1 ES 525735 A ES525735 A ES 525735A ES 525735 A ES525735 A ES 525735A ES 8507186 A1 ES8507186 A1 ES 8507186A1
Authority
ES
Spain
Prior art keywords
argon
ratio
oxygen
low carbon
high chromium
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES525735A
Other languages
Spanish (es)
Other versions
ES525735A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pennsylvania Engineering Corp
Original Assignee
Pennsylvania Engineering Corp
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 Pennsylvania Engineering Corp filed Critical Pennsylvania Engineering Corp
Priority to ES525735A priority Critical patent/ES8507186A1/en
Publication of ES525735A0 publication Critical patent/ES525735A0/en
Publication of ES8507186A1 publication Critical patent/ES8507186A1/en
Expired legal-status Critical Current

Links

Landscapes

  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

High chromium, low carbon, steel is produced from molten steel containing 0.8 to 1.0% C, by blowing with an argon/oxygen mixture, through an inserted lance. The lance comprises two concentric pipes. Initially a hydrocarbon fluid, e.g. natural gas, is blown through the outer pipe, and argon/oxygen, in the ratio 1:3 through the inner. Blowing continues until the C content is reduced to 0.02 to 0.03%, the argon/oxygen ratio being progressively increased to 3:1. The ratio of the mixture to the hydrocarbon fluid is held at about 10:1. - method is cheaper than either using electric furnaces conventionally or the alternative AOD method. The injection tuyere is cooled by the natural gas flow, and is mounted on a water-cooled holder, so it has a good service life. It can be adapted to a variety of furnaces and for injection of other substances.
ES525735A 1983-09-19 1983-09-19 prodn. of high chromium-low carbon steel Expired ES8507186A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES525735A ES8507186A1 (en) 1983-09-19 1983-09-19 prodn. of high chromium-low carbon steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES525735A ES8507186A1 (en) 1983-09-19 1983-09-19 prodn. of high chromium-low carbon steel

Publications (2)

Publication Number Publication Date
ES525735A0 ES525735A0 (en) 1985-08-16
ES8507186A1 true ES8507186A1 (en) 1985-08-16

Family

ID=8486235

Family Applications (1)

Application Number Title Priority Date Filing Date
ES525735A Expired ES8507186A1 (en) 1983-09-19 1983-09-19 prodn. of high chromium-low carbon steel

Country Status (1)

Country Link
ES (1) ES8507186A1 (en)

Also Published As

Publication number Publication date
ES525735A0 (en) 1985-08-16

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