GB779591A - Austenitic iron-base alloy - Google Patents
Austenitic iron-base alloyInfo
- Publication number
- GB779591A GB779591A GB24326/55A GB2432655A GB779591A GB 779591 A GB779591 A GB 779591A GB 24326/55 A GB24326/55 A GB 24326/55A GB 2432655 A GB2432655 A GB 2432655A GB 779591 A GB779591 A GB 779591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- melt
- pressure
- iron
- 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
- 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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
An iron-base casting is made by preparing an iron-base melt containing Cr 10-30 per cent and Mn 10-20 per cent, subjecting the melt to a pressure of at least one atmosphere above ambient, preferably in an inert gas, alloying the melt under this pressure with N in amount from 0.3 to 1.0 per cent till the ratio Cr : N is between 70 and 25, casting the melt into a mould while still under pressure and abstracting heat sufficiently rapidly to cause solidification without substantial ebullition of gas, the relative amounts of austenite formers and ferrite formers in the alloy being such as to result in a substantially completely austenitic structure. The N may be added as such or may be derived from cyanides, cyanamides, ammonia or nitrogen-bearing alloys with Fe or Fe-Cr. The alloy may also contain Si up to 3 per cent, Ni up to 8 per cent, W or Mo up to 6 per cent and V up to 0.5 per cent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US779591XA | 1954-09-02 | 1954-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB779591A true GB779591A (en) | 1957-07-24 |
Family
ID=22141020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24326/55A Expired GB779591A (en) | 1954-09-02 | 1955-08-24 | Austenitic iron-base alloy |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB779591A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2672904A1 (en) * | 1991-02-14 | 1992-08-21 | Aubert & Duval Acieries | Nonmagnetic stainless steel based on manganese-chromium, resistant to stress corrosion, process for the manufacture of a nonmagnetic steel rod of great length |
-
1955
- 1955-08-24 GB GB24326/55A patent/GB779591A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2672904A1 (en) * | 1991-02-14 | 1992-08-21 | Aubert & Duval Acieries | Nonmagnetic stainless steel based on manganese-chromium, resistant to stress corrosion, process for the manufacture of a nonmagnetic steel rod of great length |
| EP0577898A1 (en) * | 1991-02-14 | 1994-01-12 | Aubert et Duval S.A. | Stainless non-magnetic steel with high manganese and chromium content, resistant to stress corrosion and useful for drilling equipment, also the process for manufacturing rods from this steel |
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