Title:
マイクロモリブデン型耐候性橋梁鋼板及びその製造方法
Document Type and Number:
Japanese Patent JP7462853
Kind Code:
B2
Abstract:
A micro-molybdenum-type weathering bridge steel plate disclosed by the present invention is characterized in that the steel plate is smelted from the following components by weight: C: 0.05-0.08%, Si: 0.30-0.50%, Mn: 1.25-1.35%, P: 0.010-0.014%, S≤0.003%, Nb: 0.020-0.030%, Ti: 0.010-0.020%, V: 0.040-0.050%, Cu: 0.25-0.40%, Ni: 0.25-0.35%, Cr: 0.45-0.55%, Mo: 0.03-0.08%, Alt: 0.020-0.040%, and the balance from Fe and impurities. Less content of molybdenum reduces the production cost of the steel plate, the yield strength of the steel plate is 500-600 MPa, the yield strength ratio is ≤0.85, and the maximum thickness of the steel plate can reach 80 mm.
Inventors:
Yellow renewal
▲チァオ▼ 明亮
Zhao Kashiwa
Haruka Tang
king army
Qiang Choi
Lin Heng Chen
Yoon rain group
Liu Tao
Qin Yurong
Meng Lingming
▲チァオ▼ 明亮
Zhao Kashiwa
Haruka Tang
king army
Qiang Choi
Lin Heng Chen
Yoon rain group
Liu Tao
Qin Yurong
Meng Lingming
Application Number:
JP2023555140A
Publication Date:
April 05, 2024
Filing Date:
November 17, 2021
Export Citation:
Assignee:
Nanjing Steel Co., Ltd.
International Classes:
C22C38/00; C22C38/50
Domestic Patent References:
| JP2007332402A | ||||
| JP2007197778A | ||||
| JP9302442A |
Foreign References:
| CN101876032A | ||||
| CN105779883A | ||||
| CN111996460A |
Attorney, Agent or Firm:
Patent Attorney Corporation Cosmos International Patent and Trademark Office