GB518304A - Improvements relating to cutting tools, milling tools and the like - Google Patents
Improvements relating to cutting tools, milling tools and the likeInfo
- Publication number
- GB518304A GB518304A GB30716/38A GB3071638A GB518304A GB 518304 A GB518304 A GB 518304A GB 30716/38 A GB30716/38 A GB 30716/38A GB 3071638 A GB3071638 A GB 3071638A GB 518304 A GB518304 A GB 518304A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- tools
- chromium
- cutting tools
- content
- 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
- C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
518,304. Cutting tools. FERROR STEEL CORPORATION. Oct. 24, 1938, No. 30716. Convention date, Nov. 3, 1937. [Class 82 (i)] Cutting tools, milling tools, drills and the like made from an alloy steel containing as essential ingredients chromium, tungsten, molybdenum and cobalt, in addition to carbon, are characterized by a chromium content of 6 to 16 per cent. and by the total content of all the metallic or metalloid additions, except chromium, being equal to 60 to 100 per cent. of the chromium content. The maximum chromium content is preferably 8 per cent. In one example, the non-ferrous constituents comprise 6À0 per cent. of chromium, 1.0 per cent. of tungsten, 1.0 per cent. of molybdenum, 1.0 per cent. of cobalt, 0.5 per cent. of manganese, 0.5 per cent. of vanadium and up to 1.5 per cent. of carbon. A second example comprises different proportions of the same elements and also silicon, tantalum and copper. The tools may be cast to finished shape from the alloy, and may be hardened at about 900‹C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE518304X | 1937-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB518304A true GB518304A (en) | 1940-02-22 |
Family
ID=6549926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30716/38A Expired GB518304A (en) | 1937-11-03 | 1938-10-24 | Improvements relating to cutting tools, milling tools and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB518304A (en) |
-
1938
- 1938-10-24 GB GB30716/38A patent/GB518304A/en not_active Expired
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