Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HIGH-STRENGTH ELECTRIC-RESISTANCE-WELDED STEEL PIPE, AND METHOD FOR USING HIGH-STRENGTH ELECTRIC-RESISTANCE-WELDED STEEL PIPE IN CONSTRUCTION WORK TO STABILIZE FOUNDATION
Document Type and Number:
WIPO Patent Application WO/2020/171209
Kind Code:
A1
Abstract:
This high-strength electric-resistance-welded steel pipe is such that: the outside diameter of the steel tube is 60.3-318.5 mm inclusive; the ratio of the wall thickness of the steel tube and the outside diameter of the steel tube is 0.02-0.06 inclusive; the tensile strength is 590 N/mm2 or higher; and when a central part of the steel tube is cut, specific numeric value ranges are satisfied at prescribed locations.

More Like This:
WO/2000/055381METHOD OF PRODUCING A HOT-ROLLED STRIP
JP4314873High-strength steel sheet for line pipes with excellent HIC resistance and its manufacturing method
JP2710846PROBLEM TO BE SOLVED: To manufacture a Cu precipitation-strengthened ultra-thick high-strength steel plate having excellent low-temperature toughness
Inventors:
INA MASAKI (JP)
WADA MANABU (JP)
TSURUGA TAKUTO (JP)
KATO SATOSHI (JP)
Application Number:
PCT/JP2020/007101
Publication Date:
August 27, 2020
Filing Date:
February 21, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D8/02; C21D9/46; C22C38/00; C22C38/06; C22C38/58; E02D5/28
Domestic Patent References:
WO2012133558A12012-10-04
WO2015022899A12015-02-19
WO2017163987A12017-09-28
Foreign References:
JP2016047956A2016-04-07
JP2017166064A2017-09-21
JP2018053281A2018-04-05
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: HOLLOW STRUCTURE AND MANUFACTURING METHOD THEREFOR

Next Patent: CANCER CELL GROWTH INHIBITING COMPOSITION AND PROCESSED FOOD