GB432548A - Method of heat treating chromium-containing corrosion and/or heat resisting steels - Google Patents
Method of heat treating chromium-containing corrosion and/or heat resisting steelsInfo
- Publication number
- GB432548A GB432548A GB29230/33A GB2923033A GB432548A GB 432548 A GB432548 A GB 432548A GB 29230/33 A GB29230/33 A GB 29230/33A GB 2923033 A GB2923033 A GB 2923033A GB 432548 A GB432548 A GB 432548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heat
- titanium
- chromium
- carbon
- steels
- 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
- 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
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
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
Corrosion and/or heat-resisting alloy steels containing 1-60 per cent of chromium up to ,25 of carbon and 0,5-3,0 of titanium or niobium are heat treated, to prevent loss of corrosion resistance at temperatures below about 1470 DEG F., by heating to temperatures below 1346 DEG F. and 1740 DEG F. for 0.1-10 hours the time being sufficient to obtain a substantial conversion of the carbon content of the steel into carbides of titanium or niobium. The steels may be heated to 2150 DEG F. and quenched to room temperature before the heating described above. The heat treatment may also be applied to austenitic nickel iron alloys containing chromium carbon and titanium. In an example an alloy steel containing 0,1 per cent of carbon, about 18 of chromium, about 8 of nickel and about 0,5 of titanium is heated either for 1 hour at 1600 DEG F. or for 4 hours at 1400 DEG F. The heat treatment may be applied before or after cold rolling or fabricating. Reference has been directed by the Comptroller to Specification 394,378.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US432548XA | 1932-10-22 | 1932-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB432548A true GB432548A (en) | 1935-07-22 |
Family
ID=21926257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29230/33A Expired GB432548A (en) | 1932-10-22 | 1933-10-21 | Method of heat treating chromium-containing corrosion and/or heat resisting steels |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB432548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972264C (en) * | 1941-06-07 | 1959-06-18 | Phoenix Rheinrohr Ag Vereinigt | Steel for objects that must have a high level of durability |
| US3089751A (en) * | 1960-11-25 | 1963-05-14 | Richard J Beaver | Selective separation of uranium from ferritic stainless steels |
-
1933
- 1933-10-21 GB GB29230/33A patent/GB432548A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972264C (en) * | 1941-06-07 | 1959-06-18 | Phoenix Rheinrohr Ag Vereinigt | Steel for objects that must have a high level of durability |
| US3089751A (en) * | 1960-11-25 | 1963-05-14 | Richard J Beaver | Selective separation of uranium from ferritic stainless steels |
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