Title:
HIGH-NITROGEN AND HIGH-CHROMIUM PLASTIC DIE STEEL, AND SMELTING METHOD AND THERMAL PROCESSING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/108123
Kind Code:
A1
Abstract:
High-nitrogen and high-chromium plastic die steel, and a smelting method and a thermal processing method therefor. The high-nitrogen and high-chromium plastic die steel comprises the chemical components in percentage by weight: 0.25-0.35% of C, 0.45-0.8% of Si, 0.4-0.7% of Mn, 16.5-17.5% of Cr, 0.1-0.3% of Ni, 0.1-0.5% of Mo, 0.06-0.10% of N, and the balance being Fe and inevitable impurity elements. The thermal processing comprises spheroidizing annealing and isothermal quenching-tempering. The plastic die steel has good corrosion resistance.
Inventors:
XIAO QIANG (CN)
LI JUNHONG (CN)
LUO XU (CN)
LIU XUJIANG (CN)
LI JUNHONG (CN)
LUO XU (CN)
LIU XUJIANG (CN)
Application Number:
PCT/CN2019/110868
Publication Date:
June 04, 2020
Filing Date:
October 12, 2019
Export Citation:
Assignee:
PANGANG GROUP PANZHIHUA IRON & STEEL RES INSTITUTE CO LTD (CN)
International Classes:
C22C38/02; C21D1/20; C21D1/32; C21D6/00; C22C33/04; C22C38/44
Foreign References:
| JPH11335782A | 1999-12-07 | |||
| JPH11335782A | 1999-12-07 | |||
| CN101967608A | 2011-02-09 | |||
| CN108220766A | 2018-06-29 | |||
| CN107747066A | 2018-03-02 | |||
| CN108893682A | 2018-11-27 | |||
| CN107699801A | 2018-02-16 | |||
| CN109266970A | 2019-01-25 |
Other References:
WANG HUI: "Investigation of Bainiting of Cr13-Type Martensite Stainless Steel", SCIENCE-ENGINEERING (A), CHINA MASTER’S THESES FULL-TEXT DATABASE, 15 March 2017 (2017-03-15), pages 1 - 65, XP055711927
See also references of EP 3889285A4
See also references of EP 3889285A4
Attorney, Agent or Firm:
CHENGDU HONGQIAO PATENT LAW OFFICE (CN)
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