US3865581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat resistant alloy having excellent hot workabilities
Assignee: Nippon Steel Corp
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Filing: 1973-01-24
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Granted: 1975-02-11
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Expires: 1993-01-24
Abstract
Abstract A heat resistant alloy having hot workability comprising 0.01 to 0.5% of C, 0.01 to 2.0% of Si, 0.01 to 3.0% of Mn, 22 to 80% of Ni and 10 to 40% of Cr as basic components together with one or both of 0.0005 to 0.20% of B and 0.001 to 6.0% of Zr and further one or more of 0.001 to 0.5% of Ce, 0.001 to 0.2% of Mg and 0.001 to 1.0% of Be, with the remainder being iron and unavoidable impurities.
Inventors
- 👤 Shozo Sekino
- 👤 Mizuo Sakakihara
- 👤 Shoji Murota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:58
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/50; C22C19/00; C22C19/03; C22C19/05; C22C19/058; C22C38/54
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
86 words
A HEAT RESISTANT ALLOY HAVING HOT WORKABILITY CONSISTING ESSENTIALLY OF 0.01 TO 0.5% OF C, 0.01 TO 2.0% OF SI, 0.01 TO 3.0% OF MN, 22 TO 80% OF NI AND 10 TO 40% OF CR AS BASIC COMPONENTS TOGEHTER WITH ONE OR BOTH OF 0.0005 TO 0.20% OF B, AND 0.001 TO 6.0% OF ZR AND FURTHER ONE OR MORE OF 0.001 TO 0.5% OF CE, 0.001 TO 0.2% OF MG AND 0.001 TO 1.0% OF BE, WITH THE BALANCE BEING IRON AND UNAVOIDABLE IMPURITIES.
Claim 2
Dependent Claim
86 words
A HEAT RESISTANT ALLOY HAVING HOT WORKABILITY CONSISTING ESSENTIALLY OF 0.01 TO 0.5% OF C, 0.01 TO 2.0% OF SI, 0.01 TO 3.0% OF MN, 22 TO 80% OF NI AND 10 TO 40% OF CR AS BASIC COMPONENTS TOGEHTER WITH ONE OR BOTH OF 0.0005 TO 0.20% OF B, AND 0.001 TO 6.0% OF ZR AND FURTHER ONE OR MORE OF 0.001 TO 0.5% OF CE, 0.001 TO 0.2% OF MG AND 0.001 TO 1.0% OF BE, WITH THE BALANCE BEING IRON AND UNAVOIDABLE IMPURITIES.
Claim 3
Dependent Claim
127 words
A heat resistant alloy having excellent hot workability consisting essentially of 0.01 to 0.5% of C, 0.01 to 2.0% of Si, 0.01 to 3.0% of Mn, 22 to 80% of Ni, 10 to 40% of Cr as basic components, together with one or both of 0.0005 to 0.20% of B and 0.001 to 6.0% of Zr and further one or more of 0.001 to 0.5% of Ce, 0.001 to 0.2% of Mg and 0.001 to 1.0% of Be and still further one or more of 0.1 to 10.0% of Mo, 0.1 to 10.0% of W, 0.1 to 30.0% of Co, 0.05 to 10.0% of each of Ti, Nb, Ta, Al, V, Cu and Y (0.05 to 10.0% in total) with the balance being iron and unavoidable impurities.
Claim 4
Dependent Claim
127 words
A heat resistant alloy having excellent hot workability consisting essentially of 0.01 to 0.5% of C, 0.01 to 2.0% of Si, 0.01 to 3.0% of Mn, 22 to 80% of Ni, 10 to 40% of Cr as basic components, together with one or both of 0.0005 to 0.20% of B and 0.001 to 6.0% of Zr and further one or more of 0.001 to 0.5% of Ce, 0.001 to 0.2% of Mg and 0.001 to 1.0% of Be and still further one or more of 0.1 to 10.0% of Mo, 0.1 to 10.0% of W, 0.1 to 30.0% of Co, 0.05 to 10.0% of each of Ti, Nb, Ta, Al, V, Cu and Y (0.05 to 10.0% in total) with the balance being iron and unavoidable impurities.
Claim 5
Dependent Claim
133 words
A heat resistant alloy having excellent hot workability consisting essentially of 0.01 to 0.45% of C, 0.01 to 0.15% of Si, 0.01 to 0.15% of Mn, 35 to 65% of Ni, 10 to 25% of Cr, as basic components together with one or more of 0.1 to 10% of Mo, 0.1 to 10% of Co, 0.1 to 10% of W, 0.001 to 0.03% of B, 0.01 to 1.0% of Zr, 0.01 to 0.1% of Ce, 0.001 to 0.01% of Mg, 0.001 to 0.1% of Be, 0.2 to 4.5% of Ti, 0.2 to 4.5% of Al, 0.05 to 0.1% of Y, 0.05 to 0.1% of Cu and still further one or more of Nb, V and Ta in an amount of 0.1 to 4.5% for each with the balance being iron and unavoidable impurities.
Claim 6
Dependent Claim
133 words
A heat resistant alloy having excellent hot workability consisting essentially of 0.01 to 0.45% of C, 0.01 to 0.15% of Si, 0.01 to 0.15% of Mn, 35 to 65% of Ni, 10 to 25% of Cr, as basic components together with one or more of 0.1 to 10% of Mo, 0.1 to 10% of Co, 0.1 to 10% of W, 0.001 to 0.03% of B, 0.01 to 1.0% of Zr, 0.01 to 0.1% of Ce, 0.001 to 0.01% of Mg, 0.001 to 0.1% of Be, 0.2 to 4.5% of Ti, 0.2 to 4.5% of Al, 0.05 to 0.1% of Y, 0.05 to 0.1% of Cu and still further one or more of Nb, V and Ta in an amount of 0.1 to 4.5% for each with the balance being iron and unavoidable impurities.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |