US3969111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloy compositions
Assignee: Haynes International Inc
•
Filing: 1975-03-27
•
Granted: 1976-07-13
•
Expires: 1995-03-27
Abstract
Abstract A nickel-base cast alloy is provided having high retention of ductility and high thermal stability on aging coupled with low thermal expansion and good oxidation resistance. Such alloy has a composition in weight percent within the range molybdenum 13.7 to 15.5%, chromium 14.7 to 16.5%, carbon 0.02% max., boron up to 0.02%, manganese 0.3 to 1.0%, silicon 0.2 to 0.75%, cobalt 2.0% max., iron 3.0% max., tungsten 1.0% max., aluminum 0.1 to 0.5% and the balance nickel, said alloy having an Nv number between 2.23 and 2.31.
Inventors
- 👤 Dennis S. Acuncius
- 👤 Steven J. Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:03
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/056
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
79 words
A cast alloy composition having high thermal stability and oxidation resistance up to about 1600°F., and high retention of ductility on aging consisting essentially of: Mo 13.7% to 15.5%
Cr 14.7% to 16.5%
C 0.02% max.
B Up to 0.015%
Mn 0.3% to 1.0%
Si 0.2% to 0.75%
Co 2.0% max.
Fe 3.0% max.
W 1.0% max.
P 0.02% max.
S 0.015% max.
Al 0.1% to 0.5%
Ni Balance said alloy having an Nv number between 2.23 and 2.31.
Claim 2
Dependent Claim
79 words
A cast alloy composition having high thermal stability and oxidation resistance up to about 1600°F., and high retention of ductility on aging consisting essentially of: Mo 13.7% to 15.5%
Cr 14.7% to 16.5%
C 0.02% max.
B Up to 0.015%
Mn 0.3% to 1.0%
Si 0.2% to 0.75%
Co 2.0% max.
Fe 3.0% max.
W 1.0% max.
P 0.02% max.
S 0.015% max.
Al 0.1% to 0.5%
Ni Balance said alloy having an Nv number between 2.23 and 2.31.
Claim 3
Dependent Claim
62 words
A cast alloy as claimed in claim 1 wherein the composition consists essentially of: Mo 14.0%
Cr 15.5%
C LAP (lowest amt. possible)
B 0.01%
Mn 0.5%
Si 0.4%
Co LAP
Fe LAP
W LAP
P LAP
S LAP
Al 0.25%
Ni Balance said alloy having an Nv number as close to 2.28 as possible but within the range 2.23 and 2.31.
Claim 4
Dependent Claim
85 words
An alloy casting made from an alloy consisting essentially of: Mo 13.7% to 15.5%
Cr 14.7% to 16.5%
C 0.02% max.
B Up to 0.015%
Mn 0.3% to 1.0%
Si 0.2% to 0.75%
Co 2.0% max.
Fe 3.0% max.
W 1.0% max.
P 0.02% max.
S 0.015% max.
Al 0.1% to 0.5%
Ni Balance said alloy having an Nv number between 2.23 and 2.31 and characterized by thermal stability and oxidation resistance to about 1600°F., low thermal expansion and high retention of ductility on aging.
Claim 5
Dependent Claim
85 words
An alloy casting made from an alloy consisting essentially of: Mo 13.7% to 15.5%
Cr 14.7% to 16.5%
C 0.02% max.
B Up to 0.015%
Mn 0.3% to 1.0%
Si 0.2% to 0.75%
Co 2.0% max.
Fe 3.0% max.
W 1.0% max.
P 0.02% max.
S 0.015% max.
Al 0.1% to 0.5%
Ni Balance said alloy having an Nv number between 2.23 and 2.31 and characterized by thermal stability and oxidation resistance to about 1600°F., low thermal expansion and high retention of ductility on aging.
Claim 6
Dependent Claim
78 words
An alloy casting made from an alloy consisting essentially of: Mo 14.0%
Cr 15.5%
C LAP (lowest amt. possible)
B 0.01%
Mn 0.5%
Si 0.4%
Co LAP
Fe LAP
W LAP
P LAP
S LAP
Al 0.25%
Ni Balance said alloy having an Nv number as close to 2.28 as possible but within the range 2.23 and 2.31 and characterized by thermal stability oxidation resistance to about 1600°F., low thermal expansion and high retention of ductility on aging.
Claim 7
Dependent Claim
78 words
An alloy casting made from an alloy consisting essentially of: Mo 14.0%
Cr 15.5%
C LAP (lowest amt. possible)
B 0.01%
Mn 0.5%
Si 0.4%
Co LAP
Fe LAP
W LAP
P LAP
S LAP
Al 0.25%
Ni Balance said alloy having an Nv number as close to 2.28 as possible but within the range 2.23 and 2.31 and characterized by thermal stability oxidation resistance to about 1600°F., low thermal expansion and high retention of ductility on aging.
References Cited (Backward Citations)
US3510294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |