公开(公告)号：US20210348250A1

公开(公告)日：2021-11-11

申请号：US17285872

申请日：2019-10-22

Applicant: ArcelorMittal

Inventor： Joost DE STRYCKER ,  Krista VAN DEN BERGH ,  Xavier VEYS ,  Lucia FERNANDEZ MACIA ,  Ozlem GUNGOR AYAS ,  Martin LIEBEHERR

IPC: C21D9/46 ,  C21D8/02 ,  C21D6/00 ,  C22C38/50 ,  C22C38/46 ,  C22C38/48 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00

Abstract: A hot rolled steel having a composition including comprising of the following elements 0.01%≤Carbon≤0.1%, 0.2%≤Manganese≤2%, 0.2%≤Silicon≤1.5%, 0.01%≤Aluminum≤2%, 0.1%≤Tin≤1%, 0.1%≤Copper≤0.5%, 0.001%≤Niobium≤0.1%, 0.002%≤Phosphorus≤0.02%, 0%≤Sulfur≤0.005%, 0%≤Nitrogen≤0.01%, with 0.3%≤Sn+Cu≤1.2% and can contain one or more of the following optional elements 0%≤Titanium≤0.1%, 0%≤Vanadium≤0.1%, 0%≤Chromium≤1%, 0%≤Molybdenum≤0.5%, 0%≤Calcium≤0.01%, 0%≤Boron≤0.01%, 0%≤Magnesium≤0.05%, 0%≤Calcium≤0.01%, 0%≤Cerium≤0.1%, 0%≤Boron≤0.05%, 0%≤ Nickel≤0.01%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet including in area fraction, 75% to 95% Ferrite, 1% to 15% Pearlite and optionally Bainite is between 0% and 25% wherein the average grain size of all the microstructural constituent is less than 15 microns.

公开(公告)号：US20220298618A1

公开(公告)日：2022-09-22

申请号：US17834335

申请日：2022-06-07

Applicant: ArcelorMittal

Inventor： Christian ALLELY ,  Tiago MACHADO AMORIM ,  Joost DE STRYCKER ,  Krista Godelieve Oscar VAN DEN BERGH

IPC: C23C2/12 ,  C23C2/00 ,  C23C2/28 ,  C21D8/00 ,  C22C38/00 ,  B32B15/18 ,  B32B15/20 ,  B32B15/01 ,  B32B15/04 ,  C22C21/04 ,  C23C30/00 ,  C23C28/02 ,  C22C21/02 ,  C22C21/18 ,  C23C2/04 ,  C23C2/06 ,  C22C21/00 ,  C22C21/08 ,  C23C2/02 ,  C22C21/14 ,  C22C21/06 ,  C23C2/26 ,  C23C2/34 ,  C22C21/16 ,  C22C21/10 ,  C23C2/40

Abstract: A steel sheet with a metallic coating is provided. A composition of the metallic coating includes from 2.0 to 24.0% by weight of zinc, from 7.1 to 12.0% by weight of silicon, optionally from 1.1 to 8.0% by weight of magnesium, and optionally additional elements chosen from Pb, Ni, Zr, or Hf. The content by weight of each additional element is less than 0.3%. A balance of the composition is aluminum, unavoidable impurities and residual elements. A ratio Al/Zn is from 4.0 to 6.0.

公开(公告)号：US20180223409A1

公开(公告)日：2018-08-09

申请号：US15748033

申请日：2016-07-08

Applicant: ARCELORMITTAL

Inventor： Christian ALLELY ,  Tiago MACHADO AMORIM ,  Joost DE STRYCKER ,  Krista Godelieve Oscar VAN DEN BERGH

IPC: C23C2/12 ,  C23C2/40 ,  C22C21/10

Abstract: A steel sheet coated with a metallic coating is provided. The steel sheet includes from 2.0 to 24.0% by weight of zinc, from 7.1 to 12.0% by weight of silicon, optionally from 1.1 to 8.0% by weight of magnesium, and optionally additional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each additional element being less than 0.3% by weight, the balance being aluminum and optionally unavoidable impurities and residual elements. The ratio Al/Zn is above 2.9.

公开(公告)号：US20190218651A1

公开(公告)日：2019-07-18

申请号：US16359751

申请日：2019-03-20

Applicant: ARCELORMITTAL

Inventor： Christian ALLELY ,  Tiago MACHADO AMORIM ,  Joost DE STRYCKER ,  Krista Godelieve Oscar VAN DEN BERGH

IPC: C23C2/12 ,  C23C2/40 ,  C23C2/00 ,  C22C21/10

CPC classification number: C23C2/12 ,  C22C21/10 ,  C23C2/00 ,  C23C2/40

Abstract: A steel sheet with a metallic coating is provided. A composition of the metallic coating includes from 2.0 to 24.0% by weight of zinc, from 7.1 to 12.0% by weight of silicon, optionally from 1.1 to 8.0% by weight of magnesium, and optionally additional elements chosen from Pb, Ni, Zr, or Hf. The content by weight of each additional element is less than 0.3%. A balance of the composition is aluminum, unavoidable impurities and residual elements. A ratio Al/Zn is from 4.0 to 6.0.