GB966633A - Improvements in or relating to austenitic alloy - Google Patents

Improvements in or relating to austenitic alloy

Info

Publication number
GB966633A
GB966633A GB20698/62A GB2069862A GB966633A GB 966633 A GB966633 A GB 966633A GB 20698/62 A GB20698/62 A GB 20698/62A GB 2069862 A GB2069862 A GB 2069862A GB 966633 A GB966633 A GB 966633A
Authority
GB
United Kingdom
Prior art keywords
alloy
hours
aged
relating
austenitic alloy
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
GB20698/62A
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 GB966633A publication Critical patent/GB966633A/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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

An austentic, age-hardenable alloy, suitable for use at elevated temperatures in atmospheres containing combustion products of leaded fuels, has the following percentage compositions: .C.0.65-0.75 .Mn.5.5-6.9 .Si.0.45-0.85 .Cr.20.5-22.0 .Ni.1.4-1.9 .N.0.18-0.28 .S.0.021-0.055 .Fe.the balance The alloy is further characterized in that the ratio <FORM:0966633/C6-C7/1> lies between 1.83 and 2.67. Heat treatment of the alloy consists in solution treating at 1800-2200 DEG F. for 15 minutes to 4 hours, quenching and ageing at 1200-1700 DEG F. for 1 to 24 hours. Alternatively the alloy may be aged in service. As a further alternative, the alloy may be hot worked and then aged at 1400-1700 DEG F. for up to 8 hours.
GB20698/62A 1961-07-05 1962-05-29 Improvements in or relating to austenitic alloy Expired GB966633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US121886A US3097092A (en) 1961-07-05 1961-07-05 Austenitic alloy

Publications (1)

Publication Number Publication Date
GB966633A true GB966633A (en) 1964-08-12

Family

ID=22399369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20698/62A Expired GB966633A (en) 1961-07-05 1962-05-29 Improvements in or relating to austenitic alloy

Country Status (4)

Country Link
US (1) US3097092A (en)
BE (1) BE619692A (en)
BR (1) BR6240296D0 (en)
GB (1) GB966633A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA481629A (en) * 1952-03-11 A. Jennings Paul High temperature articles
US2380821A (en) * 1941-01-21 1945-07-31 Allegheny Ludlum Steel Poppet valve and valve seat for internal-combustion engines

Also Published As

Publication number Publication date
BR6240296D0 (en) 1973-05-31
US3097092A (en) 1963-07-09
BE619692A (en) 1963-01-03

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