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US3571553A Expired / Lapsed US ⏱️ 0.0 years remaining

Band electrode submerged arc welding of chromium stainless steel and a material used in said welding

Assignee: Kobe Steel Ltd
•
Filing: 1968-12-31
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Granted: 1971-03-23
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Expires: 1988-12-31
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Abstract

Abstract THE BAND ELECTRODE SUBMERGED ARC-WELDING OF CHROMIUM STAINLESS STEEL, A WELD METAL WHICH IS EXCELLENT IN DUCTILITY AND CRACK RESISTANCE CAN BE OBTAINED BY MEANS OF USING A BAND ELECTRODE OF CHROMIUM STAINLESS STEEL IN COMBINATION WITH A FLUX CONTAINING 25 TO 50 PERCENT CALCIUM CARBONATE, 30 TO 50 PERCENT ALUMINA, 1 TO 10 PERCENT FLUORITE, AND 1 TO 10 PERCENT MAGNESIA, SAID ELECTRODE AND/OR FLUX BEING BLENDED WITH ALUMINUM, TITANIUM, COLUMBIUM, NITROGEN, CHROMIUM, MANGANESE, AND NICKEL OR COBALT, SO THAT THE WELD METAL CONTAINS THESE ELEMENTS IN THE RATIO OF 0.015 TO 0.15 PERCENT ALUMINUM, 0.0025 TO 0.22 PERCENT TITANIUM, 0.35 TO 2,8 PERCENT COLUMBIUM, 0.01 TO 0.075 PERCENT NITROGEN, 8.5 TO 25 PERCENT CHROMIUM, 0.15 TO 2.0 PERCENT MANGANESE, AND LESS THAN 2.8 PERCENT NICKEL OR COBALT.

Inventors

  • 👤 Tomokazu Godai
  • 👤 Makoto Tomita
  • 👤 Osamu Tanaka

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 11:37
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/308

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3320100A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-03-22 1974-09-21 1975-03-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-22 1978-09-21 1979-03-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-22 1982-09-21 1983-03-23 $7700.00 Window Closed / Lapsed

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