GB491311A - Improvements in or relating to the manufacture of steel - Google Patents

Improvements in or relating to the manufacture of steel

Info

Publication number
GB491311A
GB491311A GB3283836A GB3283836A GB491311A GB 491311 A GB491311 A GB 491311A GB 3283836 A GB3283836 A GB 3283836A GB 3283836 A GB3283836 A GB 3283836A GB 491311 A GB491311 A GB 491311A
Authority
GB
United Kingdom
Prior art keywords
per cent
steel
molybdenum
relating
manufacture
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
GB3283836A
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.)
Samuel Osborn & Co Ltd
W G Allen & Sons Tipton Ltd
Original Assignee
Samuel Osborn & Co Ltd
W G Allen & Sons Tipton Ltd
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 Samuel Osborn & Co Ltd, W G Allen & Sons Tipton Ltd filed Critical Samuel Osborn & Co Ltd
Priority to GB3283836A priority Critical patent/GB491311A/en
Publication of GB491311A publication Critical patent/GB491311A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/42—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for armour plate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

A steel which, when used in the form of hardened and tempered plates, is bullet-proof and machinable contains 0,2-0,5 per cent of carbon, 0,55-0,85 per cent of chromium, 0,15-0,4 per cent of vanadium, and 0,4-0,7 per cent of manganese, with or without up to 1 per cent of molybdenum, the lower part of the vanadium range being used only when molybdenum is present. The heat treatment may comprise hardening by quenching in water from about 950 DEG C. followed by tempering for about 20 minutes at 400 DEG C., or, if molybdenum is present, at 600-620 DEG C.
GB3283836A 1936-11-30 1936-11-30 Improvements in or relating to the manufacture of steel Expired GB491311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3283836A GB491311A (en) 1936-11-30 1936-11-30 Improvements in or relating to the manufacture of steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3283836A GB491311A (en) 1936-11-30 1936-11-30 Improvements in or relating to the manufacture of steel

Publications (1)

Publication Number Publication Date
GB491311A true GB491311A (en) 1938-08-30

Family

ID=10344732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3283836A Expired GB491311A (en) 1936-11-30 1936-11-30 Improvements in or relating to the manufacture of steel

Country Status (1)

Country Link
GB (1) GB491311A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003868A (en) * 1959-09-30 1961-10-10 Gen Electric High temperature weldable alloys
CN109852779A (en) * 2019-03-04 2019-06-07 内蒙金属材料研究所 A kind of heat treatment method of civilian bullet proof steel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003868A (en) * 1959-09-30 1961-10-10 Gen Electric High temperature weldable alloys
CN109852779A (en) * 2019-03-04 2019-06-07 内蒙金属材料研究所 A kind of heat treatment method of civilian bullet proof steel

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