GB522252A - Improvements relating to the manufacture of austenitic ferrous alloy articles - Google Patents
Improvements relating to the manufacture of austenitic ferrous alloy articlesInfo
- Publication number
- GB522252A GB522252A GB3520738A GB3520738A GB522252A GB 522252 A GB522252 A GB 522252A GB 3520738 A GB3520738 A GB 3520738A GB 3520738 A GB3520738 A GB 3520738A GB 522252 A GB522252 A GB 522252A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hours
- air
- manufacture
- improvements relating
- ferrous 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
Abstract
522,252. Iron alloys ; annealing. BRISTOL AEROPLANE CO., Ltd., and GADD, E. R. Dec. 2, 1938, No. 35207. [Classes 72 and 82 i)] Austentic alloy steel articles such as poppetvalves are first nitrogenized and are then heattreated preferably at a temperature in excess of the nitrogenizing temperature and in air. The article may be nitrogenized by heating in ammonia at 580‹C. for 48 hours and then soaking in air at 700-850‹C. for 5 hours. In an example, an alloy steel containing 0.42 per cent. of carbon, 120 of silicon, 0.69 of manganese, 0.04 of sulphur, 0.018 of phosphorus, 14.2 of nickel, 14.2 of chromium and 2.59 of tungsten was heat-treated at 900‹C. for 15 minutes, cooled in air, etched, coated with copper and then heated in ammonia at 580‹C. for 48 hours. 'The steel was then soaked at 700‹C. for 5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3520738A GB522252A (en) | 1938-12-02 | 1938-12-02 | Improvements relating to the manufacture of austenitic ferrous alloy articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3520738A GB522252A (en) | 1938-12-02 | 1938-12-02 | Improvements relating to the manufacture of austenitic ferrous alloy articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB522252A true GB522252A (en) | 1940-06-13 |
Family
ID=10375098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3520738A Expired GB522252A (en) | 1938-12-02 | 1938-12-02 | Improvements relating to the manufacture of austenitic ferrous alloy articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB522252A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3219494A (en) * | 1962-06-28 | 1965-11-23 | United States Steel Corp | Method of making high-strength tin plate |
| GB2138028A (en) * | 1983-04-14 | 1984-10-17 | Lucas Ind Plc | Corrosion resistant steel components and method of manufacture thereof |
| GB2197053A (en) * | 1986-10-08 | 1988-05-11 | Mitsubishi Motors Corp | Electromagnetic valves |
| CH682492A5 (en) * | 1990-09-10 | 1993-09-30 | Biennaform Walzprofil Ag | Prodn. of steel profiles esp. for ski edges - involves nitriding of steel followed by cold working to produce austenitic steel having high strength, toughened and corrosion resistance |
-
1938
- 1938-12-02 GB GB3520738A patent/GB522252A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3219494A (en) * | 1962-06-28 | 1965-11-23 | United States Steel Corp | Method of making high-strength tin plate |
| GB2138028A (en) * | 1983-04-14 | 1984-10-17 | Lucas Ind Plc | Corrosion resistant steel components and method of manufacture thereof |
| US4563223A (en) * | 1983-04-14 | 1986-01-07 | Lucas Industries | Corrosion resistant steel components and method of manufacture thereof |
| GB2197053A (en) * | 1986-10-08 | 1988-05-11 | Mitsubishi Motors Corp | Electromagnetic valves |
| GB2197053B (en) * | 1986-10-08 | 1991-01-02 | Mitsubishi Motors Corp | Improvements in and relating to electromagnetic valves |
| CH682492A5 (en) * | 1990-09-10 | 1993-09-30 | Biennaform Walzprofil Ag | Prodn. of steel profiles esp. for ski edges - involves nitriding of steel followed by cold working to produce austenitic steel having high strength, toughened and corrosion resistance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB522252A (en) | Improvements relating to the manufacture of austenitic ferrous alloy articles | |
| GB1285998A (en) | A process for manufacturing alloy steel wires having low relaxation characteristics | |
| US2395608A (en) | Treating inherently precipitationhardenable chromium-nickel stainless steel | |
| KR830004429A (en) | Manufacturing method of spheroidized annealed steel wire | |
| JPS5629667A (en) | Preparation of metal mold | |
| US2519627A (en) | Graphitic steel of controllable hardenability and article made therefrom | |
| GB398834A (en) | Improvements in and relating to the nitrogenisation of ferrous austenitic alloys | |
| US3432290A (en) | Ferrous material | |
| US1736921A (en) | Case nitrification of steel | |
| US2219780A (en) | Alloy steel | |
| GB636919A (en) | Improvements relating to the manufacture of articles and structural elements used at low temperatures and to steels for use therein | |
| GB338315A (en) | Method of heat treating nitrogenised alloy steel articles | |
| GB763398A (en) | Improvements in or relating to steel | |
| GB547107A (en) | Improvements in production of malleable iron | |
| GB782778A (en) | Improvements in or relating to alloy steel | |
| GB648242A (en) | Graphitic alloy steels and nitrided products made therefrom | |
| GB800286A (en) | Low-alloy high-strength steel | |
| GB606663A (en) | Improvements in or relating to chromium-carbon steels for bearing races and to heat treatment processes therefor | |
| GB584669A (en) | Improvements in and relating to cold rolled alloy iron or alloy steel articles | |
| GB737002A (en) | Improvements in or relating to high expansion austenitic steels | |
| DE938128C (en) | Process for annealing steel from the hot forming temperature | |
| JPS6428345A (en) | Alloy steel for very low temperature use | |
| SU55345A1 (en) | High-speed chrome-molybdenum-vanadium steel | |
| GB766090A (en) | Improvements in steel and in parts of aircraft made therefrom | |
| GB298250A (en) | Improvements in alloy steel and articles made therefrom |