Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HOT STAMPING COMPONENT HAVING TENSILE STRENGTH ≥1000 MPA AND FABRICATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/228574
Kind Code:
A1
Abstract:
A hot stamping component having a tensile strength ≥1000 MPa and a fabrication method therefor. The chemical composition of said hot stamping component by weight percentage is as follows: 0.05-0.20% of C, 0.02-1.00% of Si, 0.5-2.0% of Mn, P≤0.10%, S≤0.05%, 0.01-0.30% of Al, 0.01-0.04% of Nb, 0.01-0.06% of Ti, 0.12-0.50% of Cr, and 0.001-0.05% of B, and the remainder is Fe and other inevitable impurities; in addition, the following must also be satisfied: 0.24%≤C+Mn/6≤0.45%, and 0.05%≤Nb+Ti+B×10≤0.15%. With regard to the obtained hot stamping component, the original austenite average grain size is ≤10 μm, the VDA cold bending angle is ≥80°, the room temperature impact toughness is ≥80 J/cm2, the yield strength is ≥800 MPa, the tensile strength is ≥1000 MPa, and the elongation at break is ≥6%. The hot stamping component has high toughness while also having high strength, and can therefore be widely applied in automobiles, ships, machinery, and other industries.

More Like This:
WO/2022/111929THERMAL TREATMENT OF A COMPONENT
JP6303628Hot-rolled steel sheet for electric resistance pipes with a thickness of 15 mm or more
JPH08144008HIGH TENSILE STRENGTH STEEL AND ITS PRODUCTION
Inventors:
LIU HAO (CN)
TAN NING (CN)
HONG JIYAO (CN)
BI WENZHEN (CN)
Application Number:
PCT/CN2022/090627
Publication Date:
November 03, 2022
Filing Date:
April 29, 2022
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
BAOSHAN IRON & STEEL (CN)
International Classes:
C21D8/02; C22C38/02; C22C38/04; C22C38/06; C22C38/60; C23C2/06; C23C2/40
Foreign References:
CN109371325A2019-02-22
EP2664682A12013-11-20
JP2014122398A2014-07-03
JP2015196890A2015-11-09
JP2014118613A2014-06-30
CN104271789A2015-01-07
CN106282873A2017-01-04
CN107810281B2019-06-11
CN105829562B2019-09-20
CN104838030B2017-07-28
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: DISPLAY DEVICE AND METHOD FOR OUTPUTTING AUDIO

Next Patent: DISPENSING APPARATUS, DISPENSING ASSEMBLY AND WASHING DEVICE HAVING SAME