High-strength low alloy ferritic steel small-gauge wire
Abstract
Abstract THE PROCESS FOR PRODUCING HIGH-STRENGTH FERRITIC STEEL SMALL-GAUGE WIRE HAVING A DIAMETER UP TO 1 MILLIMETER COMPRISING REDUCING THE DIAMETER OF A KILLED LOW ALLOY STEEL ROLLED STARTING WIRE, SAID STEEL CONTAINING BETWEEN ABOUT 0.01 AND 0.06 CARBON, BETWEEN ABOUT 0.05 AND 1% SILICON, BETWEEN ABOUT 0.25 ND 6% MANGANESE, BETWEEN ABOUT 0.01 AND 0.30% NIOBIUM, UP TO 0.03% NITROGEN, UP TO 0.2% ALUMINUM, UP TO 0.5% ZICRTONIUM, UP TO 0.30% VANADIUM, AND UP TO 0.5% TITANIUM, BY SEQUENTIAL PASSES THROUGH DRAWING DIES CONSTITUTING A DRAWING CYCLE, FOLLOWED BY TEMPERING AT A TEMPERATURE BETWEEN ABOUT 400*C. AND 670*C., AND FURTHER REDUCTIION WITH AT LEAST ONE ADDITIONAL DRAWING CYCLE, WITH TEMPERING AT A TEMPERATURE BETWEEN ABOUT 400*C AND 670*C. BETWEEN EACH SAID DRAWING CYCLE, UNTIL THE PRODUCT WIRE DIMENSION IS OBTAINED. THE INVENTION ALSO INCLUDES THE TOUGH HIGH-STRENGTH KILLED LOW ALLOY FERRITIC STEEL WIRE PRODUCE BY SAID PROCESS.
Inventors
- 👤 Ingemar Gustaf Terje Hallstrom
- 👤 Martin Holger Jarleborg
- 👤 Stig-Goran Harry Tarnblom
Bibliographic Details
Claims Analysis
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| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
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