GB849702A - A precipitation hardenable steel - Google Patents
A precipitation hardenable steelInfo
- Publication number
- GB849702A GB849702A GB1978658A GB1978658A GB849702A GB 849702 A GB849702 A GB 849702A GB 1978658 A GB1978658 A GB 1978658A GB 1978658 A GB1978658 A GB 1978658A GB 849702 A GB849702 A GB 849702A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steel
- precipitation hardenable
- hardenable steel
- precipitation
- chromiumcopper
- 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
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
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
849,702. Alloy steel annealing. ARMCO INTERNATIONAL CORPORATION. June 20, 1958, No. 19786/58. Classes 72 and 82(1) A precipitation hardenable chromiumcopper stainless steel consists of 12-20% Cr, 2-4.5% Cu, 0.01-0.20% C, 0.01-0.2% N, remainder iron and unavoidable impurities, the Cr, C and N contents being correlated in accordance with the area A, B, C, D, of Fig. 1. The steel may also contain up to 1% Mn, up to 1% Si, up to 0.75% Ni, up to 0.05% P, up to 0.5% S, and up to 5% Mo considered as equivalent to Cr in making use of Fig. 1. Up to 4% each of Cb, Ta and W may be included, together with up to 2% V, up to 12% Co, up to 1% Ti and up to 0.05% Bo. The steel may be austenitized by heating to 1600‹-2100‹F. for up to an hour, cooling in air, water, or oil, followed by precipitation hardening at 800‹-1200‹F. for up to 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1978658A GB849702A (en) | 1958-06-20 | 1958-06-20 | A precipitation hardenable steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1978658A GB849702A (en) | 1958-06-20 | 1958-06-20 | A precipitation hardenable steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB849702A true GB849702A (en) | 1960-09-28 |
Family
ID=10135203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1978658A Expired GB849702A (en) | 1958-06-20 | 1958-06-20 | A precipitation hardenable steel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB849702A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4450006A (en) * | 1980-10-22 | 1984-05-22 | Norioki Uyehara | Martensitic stainless steel |
| EP0496350A1 (en) * | 1991-01-24 | 1992-07-29 | ARMCO Inc. | Martensitic stainless steel |
| EP0525331A1 (en) * | 1991-06-03 | 1993-02-03 | Sumitomo Metal Industries, Ltd. | Heat resisting, ferritic steel with high chromium content and having improved resistance to embrittlement by intergranular precipitation of copper |
-
1958
- 1958-06-20 GB GB1978658A patent/GB849702A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4450006A (en) * | 1980-10-22 | 1984-05-22 | Norioki Uyehara | Martensitic stainless steel |
| EP0496350A1 (en) * | 1991-01-24 | 1992-07-29 | ARMCO Inc. | Martensitic stainless steel |
| EP0525331A1 (en) * | 1991-06-03 | 1993-02-03 | Sumitomo Metal Industries, Ltd. | Heat resisting, ferritic steel with high chromium content and having improved resistance to embrittlement by intergranular precipitation of copper |
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