US2159086A - Manufacture of high speed steels - Google Patents
Manufacture of high speed steels Download PDFInfo
- Publication number
- US2159086A US2159086A US192289A US19228938A US2159086A US 2159086 A US2159086 A US 2159086A US 192289 A US192289 A US 192289A US 19228938 A US19228938 A US 19228938A US 2159086 A US2159086 A US 2159086A
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- US
- United States
- Prior art keywords
- high speed
- steels
- manufacture
- molybdenum
- speed steels
- 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 - Lifetime
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-
- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
Definitions
- the present invention relates to steels intended for the manufacture of high speed machining tools. According to the invention such tools are made of steel alloys which contain from 0.6 to
- Steels of a composition as specified hereinbefore l although they contain only small percentages 01 alloying constituents are distinguished by a high efliciency in the chip-removing working of materials and can be equal in this respect even to the high alloy high speed tungsten steels or, under 5 favorable cutting conditions, even be superior to them.
- the best results are obtained by steels which contain the. above alloying constituents within the following limits: Carbon from 0.6 to 1.0%, chromium from 3.0 to 6.0%, molybdenum 20 from 2.0 to 4.0%, vanadium from 2.0 to 3.0%. So,
- the efllciency of the new high speed steels can 5 be increased furtherby an addition of tungsten which amounts at'least to 50% of the molybdenum content and comes within the limits of from 1.0 to 4.0%.
- the new-steels may contain,
- High speed steels composed of 0.6-1.0% carbon, 1.0-6.0% chromium, more than 1.0 and less 1 than 5.0% molybdenum, 1.0-3.0% vanadium, remainder substantially all iron with the normal impurities.
- High speed steels composed of 0.6-1.0% carbon, 3.0-6.0% chromium, 2.0 to 4.0% molybdenum, 2.0-3.0% vanadium, remainder substantially allv iron with the normal impurities.
- a cutting tool composed of high speed steel consisting of 0.6-1.0% carbon, 1.0-6.0% chromium,
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- 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)
Description
Patented May 23, 1939- UNITED STATES PAT T OFFICE.
MANUFACTURE or man srmi'n STEELS Eduard Houdre'mont and Hans Scln-ader, Essen,
Germany, assignors to Fried. Krupp Aktiengesellschatt, Essen-on-the-Ruhr, Germany- Application February 24, 1938, Serial 170.192.289
In Germany September 30, 1937 a 3 Claims. (of. 75-126) The present invention relates to steels intended for the manufacture of high speed machining tools. According to the invention such tools are made of steel alloys which contain from 0.6 to
5 1.0% carbon, from 1.0 to 6.0% chromium, from 1.0 to 6.0% molybdenum, and from 1.0 to 3.0% vanadium, the remainder substantially being iron with the normal impurities.
Steels of a composition as specified hereinbefore l although they contain only small percentages 01 alloying constituents are distinguished by a high efliciency in the chip-removing working of materials and can be equal in this respect even to the high alloy high speed tungsten steels or, under 5 favorable cutting conditions, even be superior to them. The best results are obtained by steels which contain the. above alloying constituents within the following limits: Carbon from 0.6 to 1.0%, chromium from 3.0 to 6.0%, molybdenum 20 from 2.0 to 4.0%, vanadium from 2.0 to 3.0%. So,
invention is even superior to that of a low alloy high speed steel containing 1.35% carbon, 4.27% chromium; 3.25% molybdenum, and 4.69%- vanadium.
The efllciency of the new high speed steels can 5 be increased furtherby an addition of tungsten which amounts at'least to 50% of the molybdenum content and comes within the limits of from 1.0 to 4.0%. Finally, the new-steels may contain,
besides the constituents hereinbefore specified,
up to 10.0% cobalt.
What we claim and desire to secure by Letters Patent is: a
1. High speed steels composed of 0.6-1.0% carbon, 1.0-6.0% chromium, more than 1.0 and less 1 than 5.0% molybdenum, 1.0-3.0% vanadium, remainder substantially all iron with the normal impurities.
2. High speed steels composed of 0.6-1.0% carbon, 3.0-6.0% chromium, 2.0 to 4.0% molybdenum, 2.0-3.0% vanadium, remainder substantially allv iron with the normal impurities.
3. A cutting tool composed of high speed steel consisting of 0.6-1.0% carbon, 1.0-6.0% chromium,
I more than 1.0% and less than 5.0%; molybdenum,
1.0-3.0% vanadium, the remainder substantially all iron with the'normal impurities.
. EDI'JARD HOUDREMONT.
HANS SCHRADER.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2159086X | 1937-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2159086A true US2159086A (en) | 1939-05-23 |
Family
ID=7987821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US192289A Expired - Lifetime US2159086A (en) | 1937-09-30 | 1938-02-24 | Manufacture of high speed steels |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2159086A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE930267C (en) * | 1941-07-09 | 1955-07-14 | Oberhuetten Vereinigte Obersch | Steel for permanent work tools that are exposed to impact, impact and cutting edge during cold work |
| US3945821A (en) * | 1974-06-24 | 1976-03-23 | Latrobe Steel Company | Bearing having extended rolling fatigue life |
-
1938
- 1938-02-24 US US192289A patent/US2159086A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE930267C (en) * | 1941-07-09 | 1955-07-14 | Oberhuetten Vereinigte Obersch | Steel for permanent work tools that are exposed to impact, impact and cutting edge during cold work |
| US3945821A (en) * | 1974-06-24 | 1976-03-23 | Latrobe Steel Company | Bearing having extended rolling fatigue life |
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