US2224448A - Wear resisting alloy - Google Patents
Wear resisting alloy Download PDFInfo
- Publication number
- US2224448A US2224448A US337249A US33724940A US2224448A US 2224448 A US2224448 A US 2224448A US 337249 A US337249 A US 337249A US 33724940 A US33724940 A US 33724940A US 2224448 A US2224448 A US 2224448A
- Authority
- US
- United States
- Prior art keywords
- alloy
- wear resisting
- hard
- resisting alloy
- manganese
- 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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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
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
Definitions
- This invention relates to wear resisting metallic alloys adapted for use as a hard facing material or in the casting of small objects such as nozzles for sand blasting devices or for well drill nozzles, or similar articles.
- the general objectvof the invention is to provide a ferrous alloy hich is of greathardness and also which fuses at temperatures below the melting point of ordinary steel, preferably within the range of 2000 to 2300 F.
- ' may be readily cast in position upon an object such as a bearing, a cutter, or the like.
- the object to be hard faced may be placed in a mold, pieces of my alloy are then placed in the mold and the object and mold placed in a fur- ,is to be understood that 2300 ,5. comprising elements nace and heated to a temperature above 2000 F. to melt the alloy so that it will run down about the object to be hard faced. This operation is preferably performed in a non-oxidizing atmosphere. The mold is then cooled and the opera- 5 tion is completed except for such subsequent machining as may be desired.
- the alloy may be apwell known in the art 10 limited to the method plied by other methods and the invention is not of application described.
- a hard metal alloy melting below the pointof steel comprising from 0.50% to 2.00% each of silicon and manganese; approximately 2% each 'of carbon and boron, and approximately 30 l 5% of each of molybdenum, tungsten and chromium and iron to make up 100% in all.
- a hard metal alloy of comparatively low melting point consisting of not in excess of 3.50% carbon; manganese and silicon approxi- 35 mately 1% of each; molybdenum, tungsten and chromium approximately 5% each; boron from 1 to 2%, and about iron.
- a hard metal alloy consisting of about 2% of carbon; approximately 5% each of molyb- 40 denum, tungsten and chromium; 1% to 2% of boron, about 1% each of manganese and silicon and about 80% iron.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Description
Patented Dec. 10, 1940 UNITED STATES 2,224,448 WEAR. RESISTING ALLOY Robert W. Schlumpf, Houston, Tex., assignor to Hughes Tool Company,
ration of Delaware Houston, Tex., a corpo- No Drawing. Application May 25, 1940,
Serial No. 337,249
4 Claims.
This invention relates to wear resisting metallic alloys adapted for use as a hard facing material or in the casting of small objects such as nozzles for sand blasting devices or for well drill nozzles, or similar articles.
It is an object to produce a. hard alloy of comparatively low melting point and adapted to be fused in position at temperatures below the fusing point of the objects to be hard faced. It is also desired to provide a hard compound which may be applied in position upon a device by a casting operation in a furnace.
The general objectvof the invention is to provide a ferrous alloy hich is of greathardness and also which fuses at temperatures below the melting point of ordinary steel, preferably within the range of 2000 to 2300 F.
In forming this alloy I employ with the iron, a small proportion of ingredients such as carbon, manganese and silicon which are desirable in producing a good quality of steel. To these elements, I add frohi3Vz% to 6 each ofchromium, molybdenum, and tungsten. To obtain a low fusing point, I also add a small pro- 5 portion from 1% to 2% of boron. Y
The proportions of the different elements may be varied within limits and I find that good results are obtained within the proportions indi cated in the following table:
Per cent Carbon 1.00 to 3.50 Manganese 0.50 to 2.00 Silic j 0.50 to 2.00,
. Chromium 3.50 to 6.50
Molybdenum 3i50to 6.50 Tungsten--- e 3.50 to 6.50 Boron V 1.00 to 2.00
' Iron Balance This compound fuses at comparatively low temperatures ranging from 2000 to 2300 F. and
' may be readily cast in position upon an object such as a bearing, a cutter, or the like.
The object to be hard faced may be placed in a mold, pieces of my alloy are then placed in the mold and the object and mold placed in a fur- ,is to be understood that 2300 ,5. comprising elements nace and heated to a temperature above 2000 F. to melt the alloy so that it will run down about the object to be hard faced. This operation is preferably performed in a non-oxidizing atmosphere. The mold is then cooled and the opera- 5 tion is completed except for such subsequent machining as may be desired.
While the method described is preferable it the alloy may be apwell known in the art 10 limited to the method plied by other methods and the invention is not of application described.
What I claim as new is: r 1. A hard alloy melting between 2000 and fused together in. 15 approximately the following proportions:
Per cent Carbo 1.00 to 3.50 Manganese 0.50 to 2.00 smm 0.150 to 2.00 Molybdenumu 3.50 to 6.50 Tungsten 3.50 to 6.50 Chromium 3.50 to 6.50 Boron 1.00 to 2.00 25 Iron Balance to make 100 2. A hard metal alloy melting below the pointof steel comprising from 0.50% to 2.00% each of silicon and manganese; approximately 2% each 'of carbon and boron, and approximately 30 l 5% of each of molybdenum, tungsten and chromium and iron to make up 100% in all.
3. A hard metal alloy of comparatively low melting point, consisting of not in excess of 3.50% carbon; manganese and silicon approxi- 35 mately 1% of each; molybdenum, tungsten and chromium approximately 5% each; boron from 1 to 2%, and about iron.
4. A hard metal alloy consisting of about 2% of carbon; approximately 5% each of molyb- 40 denum, tungsten and chromium; 1% to 2% of boron, about 1% each of manganese and silicon and about 80% iron.
ROBERT W. SCHLUMPF.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US337249A US2224448A (en) | 1940-05-25 | 1940-05-25 | Wear resisting alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US337249A US2224448A (en) | 1940-05-25 | 1940-05-25 | Wear resisting alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
US2224448A true US2224448A (en) | 1940-12-10 |
Family
ID=23319746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US337249A Expired - Lifetime US2224448A (en) | 1940-05-25 | 1940-05-25 | Wear resisting alloy |
Country Status (1)
Country | Link |
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US (1) | US2224448A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2505077A (en) * | 1948-11-19 | 1950-04-25 | Union Carbide & Carbon Corp | Welding rod |
US3012880A (en) * | 1960-11-28 | 1961-12-12 | Union Carbide Corp | Iron-base alloy |
-
1940
- 1940-05-25 US US337249A patent/US2224448A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2505077A (en) * | 1948-11-19 | 1950-04-25 | Union Carbide & Carbon Corp | Welding rod |
US3012880A (en) * | 1960-11-28 | 1961-12-12 | Union Carbide Corp | Iron-base alloy |
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