GB438179A - Improvements in and relating to iron-chromium alloys - Google Patents
Improvements in and relating to iron-chromium alloysInfo
- Publication number
- GB438179A GB438179A GB5644/35A GB564435A GB438179A GB 438179 A GB438179 A GB 438179A GB 5644/35 A GB5644/35 A GB 5644/35A GB 564435 A GB564435 A GB 564435A GB 438179 A GB438179 A GB 438179A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- chromium
- alloys
- iron
- silicon
- 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
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
Iron-chromium alloys which contain silicon and 0,5-3 per cent carbon and 5-40 per cent chromium for use in castings resistant to acid, rust, and heat, and of a high breakage resistance, have a silicon content which does not exceed more than half the carbon content. In examples the proportions are 1,8 per cent carbon, from 34 per cent chromium and 0,4 per cent silicon. Alloys containing up to 28 per cent chromium may be worked more easily if annealed at 600 to 1000 DEG C. After a longer or shorter annealing they can be given a desired degree of hardness by hardening and tempering preferably at temperatures of 800 to 1000 DEG C., and 300 to 500 DEG C. respectively. The alloys may also contain additions of molybdenum, tungsten, cobalt, beryllium or titanium. Specifications 220,006, 316,329, 337,404, 338,912, [all in Class 82 (i)], and 390,321 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE438179X | 1934-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB438179A true GB438179A (en) | 1935-11-12 |
Family
ID=6507131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5644/35A Expired GB438179A (en) | 1934-03-09 | 1935-02-21 | Improvements in and relating to iron-chromium alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB438179A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4043844A (en) * | 1970-09-01 | 1977-08-23 | Feltz Michel J | Heat-treated cast grinding members |
| US4043842A (en) * | 1972-07-12 | 1977-08-23 | Joiret Victor L J | Grinding members |
-
1935
- 1935-02-21 GB GB5644/35A patent/GB438179A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4043844A (en) * | 1970-09-01 | 1977-08-23 | Feltz Michel J | Heat-treated cast grinding members |
| US4043842A (en) * | 1972-07-12 | 1977-08-23 | Joiret Victor L J | Grinding members |
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