GB591222A - Improvements in heat-resisting alloys - Google Patents

Improvements in heat-resisting alloys

Info

Publication number
GB591222A
GB591222A GB6046/44A GB604644A GB591222A GB 591222 A GB591222 A GB 591222A GB 6046/44 A GB6046/44 A GB 6046/44A GB 604644 A GB604644 A GB 604644A GB 591222 A GB591222 A GB 591222A
Authority
GB
United Kingdom
Prior art keywords
per cent
approximately
heat
niobium
remainder
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
GB6046/44A
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.)
Allegheny Ludlum Steel Corp
Original Assignee
Allegheny Ludlum Steel 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 Allegheny Ludlum Steel Corp filed Critical Allegheny Ludlum Steel Corp
Publication of GB591222A publication Critical patent/GB591222A/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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum

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

Ferrous alloys, particularly suitable for use at high temperatures, have the following composition:- .C.0.20- 0.60 per cent .Cr.12.00-22.00 per cent .Nl.10.00-30.00 per cent .Mo.2.00- 6.00 per cent .W.2.00- 6.00 per cent .Nb.2.00- 6.00 per cent Fe, together with the usual impurities, the remainder The specified proportion of niobium may include a small proportion of tantalum. Within the above ranges of proportions, preferred proportions for the elements are as follows: carbon 0.30-0.60 per cent., molybdenum, tungsten and niobium in substantially equal amounts, each from 3.00-5.00 per cent., chromium up to 20.00 per cent., nickel up to 25 per cent. An alloy is referred to of the following composition:- .C.0.45 per cent. approximately .Cr.14.00 per cent. approximately .Nl.20.00 per cent. approximately W, Mo, Nb each 4.00 per cent. approximately Fe, and the usual impurities in the usual amounts, the remainder.
GB6046/44A 1943-01-23 1944-03-31 Improvements in heat-resisting alloys Expired GB591222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US591222XA 1943-01-23 1943-01-23

Publications (1)

Publication Number Publication Date
GB591222A true GB591222A (en) 1947-08-12

Family

ID=22020993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6046/44A Expired GB591222A (en) 1943-01-23 1944-03-31 Improvements in heat-resisting alloys

Country Status (1)

Country Link
GB (1) GB591222A (en)

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