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US4130418A
Expired / Lapsed
US
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Austenitic wear-resistant steel
Assignee: NYE STAVANGER STAAL AS A NORWEGIAN Co
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Filing: 1977-10-03
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Granted: 1978-12-19
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Expires: 1997-10-03
Abstract
Abstract Austenitic steel having 16-23% Mn, 1.1-1.5% C, 0-4% Cr, 0.1-0.5% Ti, the remainder being Fe and impurities.
Inventors
- 👤 Tor Hartvig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:20
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
36 words
An austenitic wear-resistant steel having good wear resistance when subjected to abrasive and combined abrasive/impact stresses, the steel consisting essentially of, by weight: 16-23% Mn, 1.1-1.5% C, 0-4% cr, 0.1-0.5% Ti, and the remainder being Fe.
Claim 2
Dependent Claim
36 words
An austenitic wear-resistant steel having good wear resistance when subjected to abrasive and combined abrasive/impact stresses, the steel consisting essentially of, by weight: 16-23% Mn, 1.1-1.5% C, 0-4% cr, 0.1-0.5% Ti, and the remainder being Fe.
Claim 3
Dependent Claim
30 words
The austenitic wear-resistant steel as claimed in claim 1, consisting of, by weight: 18.0% Mn, 1.42% C, 2.37% cr, 0.14% Ti, 0.70% Si, 0.044% P and the remainder being Fe.
Claim 4
Dependent Claim
21 words
The austenitic wear-resistant steel as claimed in claim 1, consisting of, by weight: 19.5% Mn, 1.42% C, 0.14% ti, 0.75% Si,
Claim 5
Dependent Claim
7 words
025% P and the remainder being Fe.
Claim 6
Dependent Claim
7 words
025% P and the remainder being Fe.
Claim 7
Dependent Claim
30 words
The austenitic wear-resistant steel as claimed in claim 1, consisting of, by weight: 21.7% Mn, 1.50% C, 3.15% cr, 0.13% Ti, 0.63% Si, 0.025% P and the remainder being Fe.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-18 | 1982-06-19 | 1982-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-18 | 1986-06-19 | 1986-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-18 | 1990-06-19 | 1990-12-19 | $7700.00 | Window Closed / Lapsed |