Title:
HIGH-STRENGTH AND HIGH-TOUGHNESS BAINITE GEOLOGICAL DRILLING PIPE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/179595
Kind Code:
A1
Abstract:
The present disclosure provides a bainite geological drilling pipe, comprising the following chemical elements in percentage by mass: 0.14-0.22% of C, 0.2-0.55% of Si, 2.1-2.9% of Mn, 0.01-0.04% of Nb, 0.015-0.04% of Al, 0.001-0.005% of B, and 0
Inventors:
SUN WEN (CN)
LIU YAOHENG (CN)
ZHANG ZHONGHUA (CN)
HU PING (CN)
MA YANNAN (CN)
LIU YAOHENG (CN)
ZHANG ZHONGHUA (CN)
HU PING (CN)
MA YANNAN (CN)
Application Number:
PCT/CN2022/077848
Publication Date:
September 01, 2022
Filing Date:
February 25, 2022
Export Citation:
Assignee:
BAOSHAN IRON & STEEL (CN)
International Classes:
C22C38/02; C21D8/10; C22C38/06; C22C38/38
Foreign References:
| CN109112427A | 2019-01-01 | |||
| JPH09184014A | 1997-07-15 | |||
| CN105907937A | 2016-08-31 | |||
| CN101658879A | 2010-03-03 | |||
| JP6455650B1 | 2019-01-23 | |||
| JPS5315214A | 1978-02-10 | |||
| KR20170074285A | 2017-06-30 |
Attorney, Agent or Firm:
WATSON & BAND INTELLECTUAL PROPERTY AGENT LTD. (CN)
Download PDF: