Claims
- 1. An alloy for building up a valve consisting essentially of, with respect to the total weight of said alloy taken as 100%, 30 to 40% by weight of chromium; 15 to 31% by weight of nickel; 7 to 20% by weight of molybdenum; 0.7 to 2.2% by weight of carbon; 1.5% or less by weight of silicon; and balance of iron and inevitable impurities, and said alloy being in a form of powder having a size in the range of 80 to 350 mesh.
- 2. An alloy for building up a valve according to claim 1, wherein the content of said chromium is 33 to 38% by weight.
- 3. An alloy for building up a valve according to claim 1, wherein the content of said nickel is 17.0 to 27.5% by weight.
- 4. An alloy for building up a valve according to claim 3, wherein the content of said nickel is 20.0 to 27.5% by weight.
- 5. An alloy for building up a valve according to claim 1, wherein the content of said molybdenum is 8 to 15% by weight.
- 6. An alloy for building up a valve according to claim 5, wherein the content of said molybdenum is 10 to 15% by weight.
- 7. An alloy for building up a valve according to claim 1, wherein the content of said carbon is 1.2 to 2.0% by weight.
- 8. An alloy for building up a valve according to claim 1, wherein the content of said silicon is 0.4 to 1.2% by weight.
- 9. An alloy for building up a valve consisting essentially of; with respect to the total weight of said alloy taken as 100%, 30 to 40% by weight of chromium; 15 to 31% by weight of nickel; 7 to 20% by weight of molybdenum; 0.7 to 2.2% by weight of carbon; 1.5% or less by weight of silicon; and balance of iron and inevitable impurities, wherein the content of oxygen contained in said inevitable impurities is 0.2% or less by weight and said alloy is in the form of a powder having a size in the range of 80 to 350 mesh.
- 10. An alloy for building up a valve consisting essentially of: with respect to the total weight of said alloy taken as 100%, 30 to 40% by weight of chromium; 15 to 31% by weight of nickel; 7 to 20% by weight of molybdenum; 0.7 to 2.2% by weight of carbon; 1.5% or less by weight of silicon; and balance of iron and inevitable impurities, wherein the contents of manganese, aluminum and titanium contained in said inevitable impurities are 0.1% or less by weight, respectively and said alloy is in the form of a powder having a size in the range of 80 to 350 mesh.
- 11. An alloy for building up a valve consisting essentially of; with respect to the total weight of said alloy taken as 100%, 30 to 40% by weight of chromium; 15 to 31% by weight of nickel; 7 to 20% by weight of molybdenum; 0.7 to 2.2% by weight of carbon; 1.5% or less by weight of silicon; and balance of iron and inevitable impurities, wherein said alloy is free from manganese, aluminum and titanium and said alloy is in the form of a powder having a size in the range of 80 to 350 mesh.
Priority Claims (2)
Number |
Date |
Country |
Kind |
63-191888 |
Jul 1988 |
JPX |
|
1-179422 |
Jul 1989 |
JPX |
|
Parent Case Info
This application is a continuation-in-part of application for U.S. Letters Patent Ser. No. 07/385,075, filed Jul. 26, 1989 now U.S. Pat. No. 4,948,559.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4609401 |
Simm et al. |
Sep 1986 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
59-153872 |
Sep 1984 |
JPX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
385075 |
Jul 1989 |
|