Title:
500 HB GRADE OR ABOVE ABRASION-RESISTANT STEEL AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/197572
Kind Code:
A1
Abstract:
Disclosed in the present invention is 500 HB grade or above abrasion-resistant steel, the chemical components and the mass percentages thereof are as follows: 0.15%-0.45% of C, 0.15%-0.50% of Si, 0.50%-1.80% of Mn, P ≤ 0.015%, S ≤ 0.003%, V ≤ 0.030%, Nb ≤ 0.050%, 0.008%-0.025% of Ti, 0.50%-1.50% of Cr, Ni ≤ 1.00%, 0.20%-0.80% of Mo, 0.025%-0.055% of Al, 0.0010%-0.0050% of B, 0.0010%-0.0018% of Mg, N ≤ 0.0045%, and the balance being Fe and inevitable impurities. The steel grade surface Brinell hardness is greater than or equal to 470 HBW. Further disclosed is a production method for the abrasion-resistant steel. The present invention formulates the components of NM500-NM600 steel grade abrasion-resistant steel according to a national standard "GB/T24186-2009 High Strength Abrasion Resistant Steel Plates for Construction Machine", thereby obtaining the abrasion-resistant steel performance indices meeting the national standard requirement.
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/CN2022/128866
Publication Date:
October 19, 2023
Filing Date:
November 01, 2022
Export Citation:
Assignee:
NANJING IRON & STEEL CO LTD (CN)
International Classes:
C22C38/02; C21D1/18; C21D6/00; C21D8/02; C22C33/06; C22C38/04; C22C38/06; C22C38/22; C22C38/24; C22C38/26; C22C38/28; C22C38/32; C22C38/38; C22C38/44; C22C38/46; C22C38/48; C22C38/50; C22C38/54; C22C38/58
Foreign References:
| CN114672735A | 2022-06-28 | |||
| CN107058882A | 2017-08-18 | |||
| CN107746935A | 2018-03-02 | |||
| CN113046628A | 2021-06-29 | |||
| JP2018059188A | 2018-04-12 |
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM ( ORDINARY PARTNERSHIP ) (CN)
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