GB514472A - A process for making chromium-iron or steel alloys and compositions for use in said process - Google Patents
A process for making chromium-iron or steel alloys and compositions for use in said processInfo
- Publication number
- GB514472A GB514472A GB7281/38A GB728138A GB514472A GB 514472 A GB514472 A GB 514472A GB 7281/38 A GB7281/38 A GB 7281/38A GB 728138 A GB728138 A GB 728138A GB 514472 A GB514472 A GB 514472A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- mixture
- chromium
- silicon
- oxide
- 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
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
514,472. Alloys. UDY, M. J. March 8, 1938, No. 7281. Convention date, Jan. 22. [Class 82 (i)] Chromium-iron or steel alloys are made by the reaction of a mixture containing lime, iron oxide, and ferro-chrome-silicon having a chromium-iron ratio of less than 2 : 1 and containing not less than 10 per cent. of silicon, the proportions of the constituents of the mixture being such that the mixture reacts exothermically to form the required alloy and a slag containing lime in at least equi-molecular ratio to the silica. The mixture may also contain an oxidizing salt such as a chromate, nitrate, or chlorate. Other constituents required in the alloy such as nickel, molybdenum, manganese, vanadium, or tungsten, may be incorporated in the mixture as oxides or metals, or may be added to the molten alloy produced. The iron oxide used may be ferric oxide, hematite, mill scale or magnetic oxide ; or iron oxide ores containing other metal oxides may be used. The ferro-chrome-silicon may be obtained by reducing an iron-chromium ore with carbon to form a high-carbon ferrochromium which is remelted with silica. Specification 519,303 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US514472XA | 1938-01-22 | 1938-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB514472A true GB514472A (en) | 1939-11-09 |
Family
ID=21971370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7281/38A Expired GB514472A (en) | 1938-01-22 | 1938-03-08 | A process for making chromium-iron or steel alloys and compositions for use in said process |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB514472A (en) |
-
1938
- 1938-03-08 GB GB7281/38A patent/GB514472A/en not_active Expired
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