IP Library › Granted Patent US 12,410,500
Granted Patent B2
US 12,410,500 · App. 18/487,373 · Granted Sep 9, 2025

High strength 6xxx series aluminum alloys and methods of making the same

Inventors: Sazol Kumar Das (Acworth, GA); Milan Felberbaum (Lausanne, CH)
Assignee: Novelis Inc.
C22F1/05B22D11/003B22D11/1206C22C21/02C22C21/08C22C21/12C22C21/14C22C21/16C22F1/04C22F1/043C22F1/053C22F1/057
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Quick Facts
Patent No.
US 12,410,500
App. No.
18/487,373
Granted
Sep 9, 2025
Kind
B2
Abstract

Described herein are 6xxx series aluminum alloys with unexpected properties and novel methods of producing such aluminum alloys. The aluminum alloys are highly formable and exhibit high strength. The alloys are produced by continuous casting and can be hot rolled to a final gauge and/or a final temper. The alloys can be used in automotive, transportation, industrial, and electronics applications, just to name a few.

Claims (8)

1. An aluminum alloy product prepared according to a method comprising:

continuously casting an aluminum alloy to form a slab, wherein the aluminum alloy comprises about 0.26-2.82 wt. % Si, 0.06-0.60 wt. % Fe, 0.26-2.37 wt. % Cu, 0.06-0.57 wt. % Mn, 0.26-2.37 wt. % Mg, 0-0.21 wt. % Cr, 0-0.009 wt. % Zn, 0-0.09 wt. % Ti, 0-0.003 wt. % Zr and up to 0.15 wt. % of impurities, with the remainder Al; and

hot rolling the slab to a final gauge without cold rolling the slab prior to the final gauge, wherein the aluminum alloy product comprises an interior bend angle of from about 35° to about 65° when in a T4-temper, from about 110° to about 130° when in a T82-temper, and from about 90° to about 130° when in a semi-crash condition.

2. The aluminum alloy product of claim 1 , wherein the aluminum alloy product is an aluminum alloy sheet, an aluminum alloy plate, or an aluminum alloy shate.

3. The aluminum alloy product of claim 1 , wherein the aluminum alloy product comprises a long transverse tensile yield strength of at least about 365 MPa when in a T82-temper.

4. The aluminum alloy product of claim 1 , wherein the aluminum alloy product is an automotive body part, a motor vehicle part, a transportation body part, an aerospace body part, or an electronics housing.

5. The aluminum alloy product of claim 1 , wherein the aluminum alloy comprises about 0.52-1.18 wt. % Si, 0.13-0.30 wt. % Fe, 0.52-1.18 wt. % Cu, 0.12-0.28 wt. % Mn, 0.52-0.001 wt. % Zr and up to 0.15 wt. % of impurities, with the remainder Al.

6. The aluminum alloy product of claim 1 , wherein the aluminum alloy comprises about 0.70-1.0 wt. % Si, 0.15-0.25 wt. % Fe, 0.70-0.90 wt. % Cu, 0.15-0.25 wt. % Mn, 0.70-0.90 wt. % Mg, 0.05-0.10 wt. % Cr, 0.002-0.004 wt. % Zn, 0.01-0.03 wt. % Ti, 0.0006-0.001 wt. % Zr and up to 0.15 wt. % of impurities, with the remainder Al.

Assignments (3)
SECURITY INTEREST Recorded Mar 12, 2025
From: NOVELIS INC.; NOVELIS DEUTSCHLAND GMBH; NOVELIS KOBLENZ GMBH
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 070495/0110 →
SECURITY INTEREST Recorded Mar 11, 2025
From: NOVELIS DEUTSCHLAND GMBH; NOVELIS INC.; NOVELIS KOBLENZ GMBH
To: CITIBANK, N.A.
Reel/Frame 070481/0417 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 16, 2023
From: DAS, SAZOL KUMAR; FELBERBAUM, MILAN
To: NOVELIS INC.
Reel/Frame 065232/0600 →
Continuity (6)
Division 15716657 · Sep 27, 2017
Provisional Application 62529028 · Jul 6, 2017
Provisional Application 62505944 · May 14, 2017
Provisional Application 62413740 · Oct 27, 2016
Provisional Application 62413591 · Oct 27, 2016
Related Publication 20240035136A1 · Feb 1, 2024
References Cited (202)
US 3612151A · Harrington et al. · 1971 [cited by applicant]
US 3933193A · Baker et al. · 1976 [cited by applicant]
US 4028141A · Chia et al. · 1977 [cited by applicant]
US 4174232A · Lenz et al. · 1979 [cited by applicant]
US 4194553A · Kimura et al. · 1980 [cited by applicant]
US 4238248A · Gyongyos et al. · 1980 [cited by applicant]
US 4614552A · Fortin et al. · 1986 [cited by applicant]
US 4698897A · Frommann et al. · 1987 [cited by applicant]
US 4753685A · Usui et al. · 1988 [cited by applicant]
US 4808247A · Komatsubara et al. · 1989 [cited by applicant]
US 4823860A · Lauener · 1989 [cited by applicant]
US 4869310A · Yanagi et al. · 1989 [cited by applicant]
US 4929421A · Jin et al. · 1990 [cited by applicant]
US 4976024A · Kimura · 1990 [cited by applicant]
US 5046347A · Crosato et al. · 1991 [cited by applicant]
US 5244516A · Kawaguchi · 1993 [cited by applicant]
US 5437746A · Usui et al. · 1995 [cited by applicant]
US 5461770A · Kimura et al. · 1995 [cited by applicant]
US 5548882A · Windhaus et al. · 1996 [cited by applicant]
US 5560789A · Sainfort et al. · 1996 [cited by applicant]
US 5720335A · Osada et al. · 1998 [cited by applicant]
US 5779824A · Sawada et al. · 1998 [cited by applicant]
US 6289972B1 · Benedetti · 2001 [cited by applicant]
US 6471796B1 · Kagohara et al. · 2002 [cited by applicant]
US 6579387B1 · Selepack et al. · 2003 [cited by applicant]
US 6755236B1 · Sivilotti et al. · 2004 [cited by applicant]
US 6789602B2 · Li et al. · 2004 [cited by applicant]
US 7182825B2 · Unal et al. · 2007 [cited by applicant]
US 7380583B2 · Gallerneault et al. · 2008 [cited by applicant]
US 7448432B2 · Barker et al. · 2008 [cited by applicant]
US 10493508B2 · Bassi et al. · 2019 [cited by applicant]
US 10533243B2 · Newman et al. · 2020 [cited by applicant]
US 10550455B2 · Hosch et al. · 2020 [cited by applicant]
US 20030150587A1 · Li et al. · 2003 [cited by applicant]
US 20030173003A1 · Selepack et al. · 2003 [cited by applicant]
US 20040011438A1 · Lorentzen et al. · 2004 [cited by applicant]
US 20040089382A1 · Senkov et al. · 2004 [cited by applicant]
US 20040094245A1 · Li et al. · 2004 [cited by applicant]
US 20040129353A1 · Verma et al. · 2004 [cited by applicant]
US 20050028894A1 · Hoffmann et al. · 2005 [cited by applicant]
US 20050086784A1 · Li et al. · 2005 [cited by applicant]
US 20050211350A1 · Unal et al. · 2005 [cited by applicant]
US 20070209739A1 · Zhao · 2007 [cited by applicant]
US 20080035301A1 · Arvedi · 2008 [cited by applicant]
US 20090178778A1 · Seidel et al. · 2009 [cited by applicant]
US 20100212856A1 · Rosenthal et al. · 2010 [cited by applicant]
US 20110111081A1 · Chen et al. · 2011 [cited by applicant]
US 20120024434A1 · Franz et al. · 2012 [cited by applicant]
US 20130334091A1 · Sawtell · 2013 [cited by applicant]
US 20140000768A1 · Sawtell et al. · 2014 [cited by applicant]
US 20140250963A1 · Nelson et al. · 2014 [cited by applicant]
US 20150071816A1 · Unal et al. · 2015 [cited by applicant]
US 20150218679A1 · Aruga et al. · 2015 [cited by applicant]
US 20150252461A1 · Kokubo et al. · 2015 [cited by applicant]
US 20150328670A1 · Alken et al. · 2015 [cited by applicant]
US 20170175240A1 · Wen et al. · 2017 [cited by applicant]
US 20170198376A1 · Newman et al. · 2017 [cited by applicant]
US 20180087138A1 · Gaensbauer et al. · 2018 [cited by applicant]
US 20180112296A1 · Bryant et al. · 2018 [cited by applicant]
US 20180112298A1 · Weykamp · 2018 [cited by applicant]
US 20180117650A1 · Felberbaum et al. · 2018 [cited by applicant]
US 20180117669A1 · Felberbaum et al. · 2018 [cited by applicant]
US 20180119262A1 · Felberbaum et al. · 2018 [cited by applicant]
US 20180274072A1 · Das · 2018 [cited by examiner]
US 20180297092A1 · Chung et al. · 2018 [cited by applicant]
US 20190022720A1 · Shafiei et al. · 2019 [cited by applicant]
US 20190022721A1 · Shafiei et al. · 2019 [cited by applicant]
US 20190022724A1 · Shafiei et al. · 2019 [cited by applicant]
US 20190054519A1 · Barker · 2019 [cited by applicant]
CA 2459471C · 2010 [cited by applicant]
CA 2900625A1 · 2014 [cited by applicant]
CN 1200771A · 1998 [cited by applicant]
CN 1207965A · 1999 [cited by applicant]
CN 1505692A · 2004 [cited by applicant]
CN 1662670A · 2005 [cited by applicant]
CN 1942595A · 2007 [cited by applicant]
CN 101896631A · 2010 [cited by applicant]
CN 102413955A · 2012 [cited by applicant]
CN 103119185A · 2013 [cited by applicant]
CN 103131904A · 2013 [cited by applicant]
CN 103510029A · 2014 [cited by applicant]
CN 103764305A · 2014 [cited by applicant]
CN 104093868A · 2014 [cited by applicant]
CN 104109784A · 2014 [cited by applicant]
CN 104284745A · 2015 [cited by applicant]
CN 104321451A · 2015 [cited by applicant]
CN 104364409A · 2015 [cited by applicant]
CN 104411846A · 2015 [cited by applicant]
CN 104583433A · 2015 [cited by applicant]
CN 104762575A · 2015 [cited by applicant]
CN 204817969U · 2015 [cited by applicant]
CN 105397045A · 2016 [cited by applicant]
CN 105734369A · 2016 [cited by applicant]
CN 105814222A · 2016 [cited by applicant]
EP 2813592A1 · 2014 [cited by applicant]
GB 1387992A · 1975 [cited by applicant]
GB 2027743A · 1980 [cited by applicant]
JP 60152348A · 1985 [cited by applicant]
JP 60201839A · 1985 [cited by applicant]
JP 6283453A · 1987 [cited by applicant]
JP 6289502A · 1987 [cited by applicant]
JP 63252604A · 1988 [cited by applicant]
JP 06322493A · 1994 [cited by applicant]
JP H0790459A · 1995 [cited by applicant]
JP 07252573A · 1995 [cited by applicant]
JP 09327706A · 1997 [cited by applicant]
JP 10502973A · 1998 [cited by applicant]
JP 10130768A · 1998 [cited by applicant]
JP 2000017412A · 2000 [cited by applicant]
JP 2000210760A · 2000 [cited by applicant]
JP 2000212673A · 2000 [cited by applicant]
JP 2001518140A · 2001 [cited by applicant]
JP 2006299420A · 2006 [cited by applicant]
JP 2007031819A · 2007 [cited by applicant]
JP 2007262484A · 2007 [cited by applicant]
JP 2008076297A · 2008 [cited by applicant]
JP 2008190022A · 2008 [cited by applicant]
JP 2014047384A · 2014 [cited by applicant]
JP 2014219222A · 2014 [cited by applicant]
JP 2016160515A · 2016 [cited by applicant]
JP 2016160516A · 2016 [cited by applicant]
KR 940010443B1 · 1994 [cited by applicant]
KR 20080014744A · 2008 [cited by applicant]
KR 20140134315A · 2014 [cited by applicant]
KR 20150023006A · 2015 [cited by applicant]
RU 99126709A · 2001 [cited by applicant]
RU 2292967C2 · 2007 [cited by applicant]
RU 2299256C1 · 2007 [cited by applicant]
RU 2305022C1 · 2007 [cited by applicant]
RU 2313594C1 · 2007 [cited by applicant]
RU 2008139893A · 2010 [cited by applicant]
RU 2397842C1 · 2010 [cited by applicant]
RU 102550U1 · 2011 [cited by applicant]
RU 2415193C1 · 2011 [cited by applicant]
SU 1306484A3 · 1987 [cited by applicant]
WO 9711205A1 · 1997 [cited by applicant]
WO 0037190A1 · 2000 [cited by applicant]
WO 0144532A1 · 2001 [cited by applicant]
WO 2008003504A2 · 2008 [cited by applicant]
WO 2008016169A1 · 2008 [cited by applicant]
WO 2013133960A1 · 2013 [cited by applicant]
WO 2015058902A1 · 2015 [cited by applicant]
WO 2016090026A1 · 2016 [cited by applicant]
Chinese Application No. 201780066605.2 , “Office Action”, Apr. 1, 2024, 17 pages. [cited by applicant]
Korean Application No. 10-2023-7004069 , “Notice of Decision to Grant”, Feb. 16, 2024, 5 pages. [cited by applicant]
Korean Application No. 10-2023-7004069 , “Office Action”, Oct. 26, 2023, 6 pages. [cited by applicant]
Li et al., “Luhejin Shengchan Shebei Ji Shiyong Weihu Jishu”, Metallurgical Industry Press, Edition 1, Jan. 2013, 35 pages. [cited by applicant]
Rong et al., “Japan Industrial Furnace Handbook”, Compiled by Japan Industrial Furnace Manufacture Association, Metallurgical Industry Press, Edition 1, Apr. 1989, 23 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Advisory Action”, Sep. 14, 2020, 3 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Final Office Action”, Jun. 25, 2020, 6 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Final Office Action”, Nov. 12, 2021, 8 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Final Office Action”, Aug. 18, 2022, 9 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Final Office Action”, May 23, 2023, 9 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Non-Final Office Action”, Mar. 6, 2020, 6 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Non-Final Office Action”, May 27, 2021, 6 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Non-Final Office Action”, Dec. 21, 2022, 9 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Non-Final Office Action”, Mar. 31, 2022, 9 pages. [cited by applicant]
U.S. Appl. No. 15/716,657 , “Notice of Allowance”, Sep. 5, 2023, 8 pages. [cited by applicant]
AU2017350515 , “First Examination Report”, Aug. 29, 2019, 3 pages. [cited by applicant]
AU2017350515 , “Notice of Acceptance”, Feb. 26, 2020, 3 pages. [cited by applicant]
BR112019007379-5 , “Office Action”, Jul. 27, 2021, 4 pages. [cited by applicant]
BR112019007379-5 , “Office Action”, May 3, 2022, 4 pages. [cited by applicant]
CA3,041,562 , “Notice of Allowance”, Feb. 14, 2022, 1 page. [cited by applicant]
CA3,041,562 , “Office Action”, Jun. 2, 2021, 3 pages. [cited by applicant]
CA3,041,562 , “Office Action”, Dec. 8, 2020, 4 pages. [cited by applicant]
CA3,041,562 , “Office Action”, May 7, 2020, 5 pages. [cited by applicant]
CN201780066605.2 , “Office Action”, Apr. 19, 2021, 10 pages. [cited by applicant]
CN201780066605.2 , “Office Action”, Aug. 2, 2021, 10 pages. [cited by applicant]
CN201780066605.2 , “Office Action”, Jul. 28, 2020, 23 pages. [cited by applicant]
Davis , “Aluminum and Aluminum Alloys”, ASM International, 1993, 6 pages. [cited by applicant]
EP17790885.2 , “Intention to Grant”, Jan. 9, 2023, 5 pages. [cited by applicant]
EP17790885.2 , “Office Action”, Apr. 6, 2021, 4 pages. [cited by applicant]
EP17790885.2 , “Office Action”, Dec. 7, 2021, 4 pages. [cited by applicant]
EP17790885.2 , “Office Action”, Jul. 23, 2021, 4 pages. [cited by applicant]
EP17790885.2 , “Office Action”, Jun. 15, 2022, 5 pages. [cited by applicant]
EP17790885.2 , “Office Action”, Mar. 16, 2020, 5 pages. [cited by applicant]
EP17790885.2 , “Office Action”, Oct. 19, 2020, 5 pages. [cited by applicant]
IN201917016395 , “First Examination Report”, Dec. 14, 2020, 7 pages. [cited by applicant]
JP2019-520573 , “Notice of Decision to Grant”, May 17, 2022, 2 pages. [cited by applicant]
JP2019-520573 , “Office Action”, May 26, 2020, 14 pages. [cited by applicant]
JP2019-520573 , “Office Action”, Dec. 14, 2021, 15 pages. [cited by applicant]
JP2019-520573 , “Office Action”, Feb. 2, 2021, 6 pages. [cited by applicant]
KR10-2019-7014790 , “Office Action”, Oct. 21, 2020, 12 pages. [cited by applicant]
KR10-2019-7014790 , “Office Action”, Jun. 21, 2021, 7 pages. [cited by applicant]
KR10-2019-7014790 , “Office Action”, May 12, 2021, 7 pages. [cited by applicant]
KR10-2021-7023150 , “Office Action”, Oct. 25, 2021, 3 pages. [cited by applicant]
KR10-2021-7023150 , “Office Action”, Dec. 7, 2022, 5 pages. [cited by applicant]
KR10-2021-7023150 , “Office Action”, Aug. 30, 2022, 8 pages. [cited by applicant]
KR10-2023-7004069 , “Office Action”, Jul. 5, 2023, 8 pages. [cited by applicant]
Li et al., “Aluminum Alloy Material and Heat Treatment Process”, Metallurgical Industry Press, Apr. 30, 2012, 6 pages. [cited by applicant]
Lohne et al., “Quench Sensitivity in AlMgSi Alloys Containing Manganese or Chromium”, Scandinavian Journal of Metallurgy, vol. 12, 1983, pp. 34-36. [cited by applicant]
MX/A/2019/004839 , “Notice of Allowance”, Aug. 11, 2023, 3 pages. [cited by applicant]
MX/A/2019/004839 , “Office Action”, Jun. 13, 2023, 4 pages. [cited by applicant]
PCT/US2017/053749 , “International Preliminary Report on Patentability”, May 9, 2019, 9 pages. [cited by applicant]
PCT/US2017/053749 , “International Search Report and Written Opinion”, Dec. 8, 2017, 15 pages. [cited by applicant]
Prince et al., “The Effects of Dispersoids Upon the Micromechanisms of Crack Propagation in Al—Mg—Si Alloys”, Acta Metallurgical, vol. 27, No. 8, Aug. 1979, pp. 1401-1408. [cited by applicant]
RU2019112640 , “Notice of Decision to Grant”, Mar. 26, 2020, 14 pages. [cited by applicant]
RU2019112640 , “Office Action”, Dec. 20, 2019, 11 pages. [cited by applicant]
Song et al., “The Role of Tin in the Hot-Ductility Deterioration of a Low-Carbon Steel”, Metallurgical and Materials Transactions A, vol. 34, No. 8, Aug. 2003, pp. 1611-1616. [cited by applicant]
Tong et al., “5000 Questions on New Technology of Energy Saving and Emission Reduction in Steel Works”, China Science and Technology Press, Jul. 31, 2009, 4 pages. [cited by applicant]
Wang et al., “Introduction to Constructive Material Science”, Shanghai Science and Technology Press, Feb. 28, 1987, 4 pages. [cited by applicant]
Zhao et al., “Effect of Mn Contents on the Bake Hardenability and Bendability of Al-0.6mass%Mg-0.8mass%Si Alloy Sheets”, Journal of Japan Institute of Light Metals, vol. 55, No. 5, 2005, pp. 227-232. [cited by applicant]