ES204914A1 - Improvements relating to alloy steels for use at elevated temperatures - Google Patents

Improvements relating to alloy steels for use at elevated temperatures

Info

Publication number
ES204914A1
ES204914A1 ES0204914A ES204914A ES204914A1 ES 204914 A1 ES204914 A1 ES 204914A1 ES 0204914 A ES0204914 A ES 0204914A ES 204914 A ES204914 A ES 204914A ES 204914 A1 ES204914 A1 ES 204914A1
Authority
ES
Spain
Prior art keywords
per cent
elevated temperatures
improvements relating
alloy steels
alloys
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
ES0204914A
Other languages
Spanish (es)
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.)
Thos Firth & John Brown Ltd
Original Assignee
Thos Firth & John Brown 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 Thos Firth & John Brown Ltd filed Critical Thos Firth & John Brown Ltd
Publication of ES204914A1 publication Critical patent/ES204914A1/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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys

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)

Abstract

A method of heat-treating precipitation alloys of the kind described in Specifications 616,207, 669,131 and 669,579 and the alloy comprising 0.21 per cent carbon, 0.82 per cent silicon, 1.07 per cent manganese, 14.20 per cent chromium, 9.65 per cent nickel, 2.05 per cent molybdenum, 2.65 per cent copper, 0.79 per cent titanium and the balance iron, comprises subjecting the alloys, at any temperature up to 800 DEG C., to 5-40 per cent plastic deformation after solution treatment and before precipitation hardening. The solution treatment may be at 1200-1250 DEG C. and the precipitation hardening at 700-750 DEG C. for 4-16 hours. The treatment is stated to improve the creep resistance of the metal. Specification 649,034 also is referred to.
ES0204914A 1951-08-23 1952-08-08 Improvements relating to alloy steels for use at elevated temperatures Expired ES204914A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1995151A GB722809A (en) 1951-08-23 1951-08-23 Improvements relating to alloy steels for use at elevated temperatures

Publications (1)

Publication Number Publication Date
ES204914A1 true ES204914A1 (en) 1954-03-16

Family

ID=10137851

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0204914A Expired ES204914A1 (en) 1951-08-23 1952-08-08 Improvements relating to alloy steels for use at elevated temperatures

Country Status (2)

Country Link
ES (1) ES204914A1 (en)
GB (1) GB722809A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905577A (en) * 1956-01-05 1959-09-22 Birmingham Small Arms Co Ltd Creep resistant chromium steel

Also Published As

Publication number Publication date
GB722809A (en) 1955-02-02

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