GB673284A - Improvements in the manufacture of chromium steels - Google Patents
Improvements in the manufacture of chromium steelsInfo
- Publication number
- GB673284A GB673284A GB14823/50A GB1482350A GB673284A GB 673284 A GB673284 A GB 673284A GB 14823/50 A GB14823/50 A GB 14823/50A GB 1482350 A GB1482350 A GB 1482350A GB 673284 A GB673284 A GB 673284A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chromium
- per cent
- slag
- reducing agent
- bath
- 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
- C21C7/0685—Decarburising of stainless steel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C35/00—Master alloys for iron or steel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
A process of manufacturing chromium-containing steel, having a maximum carbon content of 0.04 per cent, which comprises forming a bath of molten steel containing chromium, oxidizing the bath to remove carbon, thus forming a slag containing chromium and iron oxides, and adding a ferrochromesilicon reducing agent to recover chromium and iron from the slag, is characterized in that the reducing agent has the following composition: Cr 50-70 per cent; Si 5-15 per cent; C 0.01-0.15 per cent; Fe the remainder. The reducing agent may be added in amount between 75 and 95 per cent of that required theoretically to reduce all the chromium and iron oxides in the slag, other silicon-bearing alloys being used to complete the reduction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1020408XA | 1949-06-25 | 1949-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB673284A true GB673284A (en) | 1952-06-04 |
Family
ID=22287802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14823/50A Expired GB673284A (en) | 1949-06-25 | 1950-06-14 | Improvements in the manufacture of chromium steels |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1020408A (en) |
| GB (1) | GB673284A (en) |
-
1950
- 1950-06-10 FR FR1020408D patent/FR1020408A/en not_active Expired
- 1950-06-14 GB GB14823/50A patent/GB673284A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1020408A (en) | 1953-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB673284A (en) | Improvements in the manufacture of chromium steels | |
| US1748750A (en) | Process of making low-carbon ferro-alloys | |
| GB764818A (en) | Improvements in or relating to independent wheel suspensions for motor vehicles | |
| GB1025230A (en) | Improvements in the production of alloy steel | |
| GB686810A (en) | Process for manufacturing low-carbon chromium steels | |
| DE628428C (en) | Process for the production of low-carbon iron-chromium alloys | |
| JPS563681A (en) | Tool having superior abrasion-resisting property | |
| GB681589A (en) | Improvement in production of low-carbon alloys | |
| GB1020769A (en) | Process of producing chrome steel | |
| AT162863B (en) | Process for the manufacture of nitrogen-containing ferro alloys | |
| SU206608A1 (en) | ||
| GB315444A (en) | Process of making commercially pure iron alloys | |
| GB546681A (en) | Processes and products for the production of low carbon chromium alloys | |
| GB282365A (en) | Improvements in or relating to processes for the production of pure iron | |
| GB679435A (en) | Improvement in alloy addition agent and method of using same | |
| ES342836A1 (en) | Process for melting and decarburising steel scrap | |
| GB595404A (en) | Improvements in melting and handling magnesium and magnesium base alloys | |
| GB197733A (en) | Improvements in and relating to the manufacture of ferrochromium alloys | |
| GB152399A (en) | Improvements in or relating to the production of chrome iron or chrome steel alloys | |
| GB723802A (en) | Improvements relating to the refining of steel and alloys thereof | |
| GB198633A (en) | Improvements in and relating to the manufacture of unstainable irons and steels | |
| GB789036A (en) | Improvements in the production of ferrochromium | |
| GB282387A (en) | Manufacture of stainless iron | |
| GB451263A (en) | Process for the deoxidation of ferrous metals with cyclic utilisation and regeneration of slags | |
| GB841352A (en) | Process for the manufacture of ferrochromium alloys |