Title:
The wire rod for high strength steel wires and a high strength steel wire excellent in raw influence nature
Document Type and Number:
Japanese Patent JP6180351
Kind Code:
B2
Abstract:
Provided are: a technique with which air blast cooling can be used to produce, with excellent productivity, a high-strength steel wire material capable of achieving uniform high strength and high ductility, even when cold drawn; a high-strength steel wire produced from this high-strength steel wire material; and a zinc-plated high-strength steel wire. This high-strength steel wire material respectively includes 0.80-1.3% of C, 0.1-1.5% of Si, 0.1-1.5% of Mn, more than 0% but not more than 0.03% of P, more than 0% but not more than 0.03% of S, 0.0005-0.01% of B, 0.01-0.10% of Al, and 0.001-0.006% of N, the remainder comprising iron and unavoidable impurities. The area ratio of pearlite in the structure of the high-strength steel wire material is at least 90%. The average grain size number (Pave) of pearlite nodules and the standard deviation (PÃ) thereof respectively satisfy formula (1), namely 7.0 ¤ P ave ¤ 10.0, and formula (2), namely PÃ ¤ 0.6.
Inventors:
Ishida Tomunobu
Nao Yoshihara
Nao Yoshihara
Application Number:
JP2014060131A
Publication Date:
August 16, 2017
Filing Date:
March 24, 2014
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
C22C38/00; C22C38/06; C22C38/54
Domestic Patent References:
| JP2007039800A | ||||
| JP2004137597A | ||||
| JP2012072492A |
Foreign References:
| WO2008093466A1 | ||||
| US20100239884 | ||||
| US20130127100 |
Attorney, Agent or Firm:
Takuji Yamada
Norihito Yamao
Noriko Cauldron
Masahiro Sasaki
Norihito Yamao
Noriko Cauldron
Masahiro Sasaki
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