Title:
360HB-450HB GRADE ABRASION RESISTANT STEEL AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/197571
Kind Code:
A1
Abstract:
Disclosed in the present invention is a 360HB-450HB grade abrasion resistant steel, comprising the following chemical components in percentage by mass: C: 0.10%-0.30%, Si: 0.20%-0.50%, Mn: 0.80%-1.60%, P≤0.020%, S≤0.005%, Ti: 0.008%-0.025%, Cr: 0.20%-1.00%, Ni≤0.60%, Mo: 0.10%-0.50%, Al: 0.025%-0.055%, B: 0.0010%-0.0030%, Mg: 0.0010%-0.0018%, N≤0.0045%, and the remainder being Fe and inevitable impurities, the Brinell hardness of the steel grade surface being 330-480 HBW. Further disclosed is a production method for the abrasion resistant steel. The present invention formulates components of the abrasion resistant steel with the steel grade of NM360-NM450 according to the national standard "GB/T 24186-2009 high strength abrasion resistant steel plates for construction machine", and the abrasion resistant steel performance index satisfying the national standard requirement is obtained.
Inventors:
QIAO MINGLIANG (CN)
ZHAI DONGYU (CN)
YANG LIU (CN)
CHEN MENG (CN)
MA LIUJUN (CN)
HUANG BIAOKAI (CN)
ZHAI DONGYU (CN)
YANG LIU (CN)
CHEN MENG (CN)
MA LIUJUN (CN)
HUANG BIAOKAI (CN)
Application Number:
PCT/CN2022/128864
Publication Date:
October 19, 2023
Filing Date:
November 01, 2022
Export Citation:
Assignee:
NANJING IRON & STEEL CO LTD (CN)
International Classes:
B21B1/46; C22C38/02; C21C7/10; C21D1/18; C21D8/02; C21D9/00; C22C33/04; C22C38/04; C22C38/06; C22C38/44; C22C38/50; C22C38/54; C22C38/58
Domestic Patent References:
| WO2020087961A1 | 2020-05-07 |
Foreign References:
| CN114686768A | 2022-07-01 | |||
| CN107058882A | 2017-08-18 | |||
| JP2014194043A | 2014-10-09 |
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM ( ORDINARY PARTNERSHIP ) (CN)
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