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1. WO2020110855 - HOT-ROLLED STEEL SHEET

Publication Number WO/2020/110855
Publication Date 04.06.2020
International Application No. PCT/JP2019/045397
International Filing Date 20.11.2019
IPC
C22C 38/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
C22C 38/58 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
58with more than 1.5% by weight of manganese
C21D 9/46 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
46for sheet metals
CPC
C21D 9/46
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
46for sheet metals
C22C 38/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
C22C 38/58
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
58with more than 1.5% by weight of manganese
Applicants
  • 日本製鉄株式会社 NIPPON STEEL CORPORATION [JP]/[JP]
Inventors
  • 藪 翔平 YABU Shohei
  • 林 邦夫 HAYASHI Kunio
  • 山口 裕司 YAMAGUCHI Yuji
  • 森 真莉菜 MORI Marina
  • 井上 直紀 INOUE Naoki
  • 虻川 玄紀 ABUKAWA Genki
Agents
  • 棚井 澄雄 TANAI Sumio
  • 寺本 光生 TERAMOTO Mitsuo
  • 勝俣 智夫 KATSUMATA Tomoo
  • 山口 洋 YAMAGUCHI Yoh
Priority Data
2018-22229628.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) HOT-ROLLED STEEL SHEET
(FR) TÔLE D'ACIER LAMINÉE À CHAUD
(JA) 熱延鋼板
Abstract
(EN)
A hot-rolled steel sheet contains C, Si, Mn and sol.Al as chemical components, and has such properties that the mean pole density in a direction group consisting of {110}<110> to {110}<001> in a surface area is 0.5 to 3.0 inclusive, the standard deviation of the pole densities in this direction group is 0.2 to 2.0 inclusive and the tensile strength is 780 to 1370 MPa inclusive.
(FR)
La présente invention concerne une tôle d'acier laminée à chaud qui contient C, Si, Mn et Al sol.en tant que composants chimiques, et présente des propriétés telles que la densité de pôle moyenne dans un groupe de direction constitué de {110}<110> à {110}<001> dans une aire de surface est de 0,5 à 3,0 inclus, l'écart-type des densités de pôles dans ce groupe de direction est de 0,2 à 2,0 inclus et la résistance à la traction est de 780 à 1370 MPa inclus.
(JA)
この熱延鋼板は、化学成分として、C、Si、Mn、sol.Alを含有し、表面領域にて、{110}<110>~{110}<001>からなる方位群の平均極密度が0.5以上3.0以下であり、かつこの方位群の極密度の標準偏差が0.2以上2.0以下であり、引張強度が780MPa以上1370MPa以下である。
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