Title:
ALUMINUM ALLOY SHEET FOR RING PULL CAPS AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/239694
Kind Code:
A1
Abstract:
This aluminum alloy sheet is a rolled sheet having an alloy composition that contains, on a mass basis, from 0.50% to 1.10% of Mn, 2.85% or more but less than 3.48% of Mg, from 0.20% to 0.40% of Fe, from 0.05% to 0.20% of Si and from 0.01% to 0.15% of Cu, while optionally containing 0.10% or less of Ti on a mass basis, with the balance being made up of aluminum and unavoidable impurities. With respect to this aluminum alloy sheet, the tensile strength in the rolled direction after a heat treatment at 190°C for 10 minutes is from 280 MPa to 320 MPa; the difference between the tensile strength and the proof stress is 35 MPa or more; the conductivity is from 25% IACS to 34% IACS; and the creep strain rate after 60 to 80 hours from the start of a creep test at a material temperature of 80°C with a load to a test piece of 100 MPa is 3.0 × 10-4% h-1 or less.
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Inventors:
UEDA SHUNSAKU (JP)
Application Number:
PCT/JP2022/019507
Publication Date:
November 17, 2022
Filing Date:
May 02, 2022
Export Citation:
Assignee:
UACJ CORP (JP)
International Classes:
C22C21/06; C22F1/00; C22F1/047
Foreign References:
| JP2011132592A | 2011-07-07 | |||
| JPH0586444A | 1993-04-06 | |||
| JPH09291331A | 1997-11-11 |
Attorney, Agent or Firm:
OKUDA Seiji (JP)
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