GB354177A - Improved steel capable of resisting rust and corrosion - Google Patents

Improved steel capable of resisting rust and corrosion

Info

Publication number
GB354177A
GB354177A GB10257/30A GB1025730A GB354177A GB 354177 A GB354177 A GB 354177A GB 10257/30 A GB10257/30 A GB 10257/30A GB 1025730 A GB1025730 A GB 1025730A GB 354177 A GB354177 A GB 354177A
Authority
GB
United Kingdom
Prior art keywords
per cent
iron
carbon
charge
corrosion
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
GB10257/30A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB354177A publication Critical patent/GB354177A/en
Expired legal-status Critical Current

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

A silicon-free steel, poor in carbon, resistant to rusting and corrosion, contains 0,1-1 per cent of chromium, 0,25-0,5 per cent of copper, 0,04-0,25 per cent of nickel and 0,01-0,05 per cent of tungsten. In producing the steel a charge is smelted in a Siemens-Martin furnace comprising Martin pig-iron, a special pig iron containing up to 0,1 per cent only of phosphorus and scrap iron with the usual addition of lime. Decarburizing additions of iron oxide, for example slag or scale in quantities of 0,4-0,5 per cent of the metallic charge are made to bring down the carbon to 0,03 per cent. After degassing the charge by additions of, for example, ferromanganese or aluminium, the alloying is carried out by the addition of a ledeburitic carbidic alloy free from graphite and containing approximately 2,5-3 per cent of carbon, 20-30 per cent of chromium, 6-10 per cent of nickel, 10-15 per cent of copper, 5-6 per cent of tungsten, the remainder being iron free from manganese, silicon and phosphorus.
GB10257/30A 1929-03-30 1930-03-31 Improved steel capable of resisting rust and corrosion Expired GB354177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE354177X 1929-03-30

Publications (1)

Publication Number Publication Date
GB354177A true GB354177A (en) 1931-07-31

Family

ID=6286879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10257/30A Expired GB354177A (en) 1929-03-30 1930-03-31 Improved steel capable of resisting rust and corrosion

Country Status (1)

Country Link
GB (1) GB354177A (en)

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