Title:
STEEL FOR HIGH-STRENGTH BOLT, AND HIGH-STRENGTH BOLT
Document Type and Number:
WIPO Patent Application WO/2016/031528
Kind Code:
A1
Abstract:
This steel for a high-strength bolt contains 0.50-0.65 mass% of carbon, 1.5-2.5 mass% of silicon, not less than 1.0 mass% of chromium, not more than 0.4 mass% of manganese, greater than 1.5 mass% of molybdenum, and not more than 0.03 mass% in total of phosphor and sulfur, with the balance being iron and inevitable impurities. The high-strength bolt is formed using the steel for a high-strength bolt which contains 0.50-0.65 mass% of carbon, 1.5-2.5 mass% of silicon, not less than 1.0 mass% of chromium, not more than 0.4 mass% of manganese, greater than 1.5 mass% of molybdenum, and not more than 0.03 mass% in total of phosphor and sulfur, with the balance being iron and inevitable impurities.
Inventors:
HAMADA TAKAHIRO (JP)
NAKAMURA TSUYOSHI (JP)
KIMURA KOSUKE (JP)
NAKAMURA TSUYOSHI (JP)
KIMURA KOSUKE (JP)
Application Number:
PCT/JP2015/072508
Publication Date:
March 03, 2016
Filing Date:
August 07, 2015
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
C22C38/34; C22C38/00; F16B33/06; F16B35/00
Foreign References:
| JP2002173739A | 2002-06-21 | |||
| JP2006187679A | 2006-07-20 | |||
| JP2006022371A | 2006-01-26 | |||
| JP2006045670A | 2006-02-16 | |||
| JPH1017985A | 1998-01-20 | |||
| JP2011084784A | 2011-04-28 |
Other References:
YUJI KIMURA ET AL.: "Cho-Koriki Bolt no Sosei to Kikaiteki Tokusei", STEEL CONSTRUCTION ENGINEERING, vol. 14, no. 54, June 2007 (2007-06-01), pages 121 - 127, XP008185600
See also references of EP 3187610A4
See also references of EP 3187610A4
Attorney, Agent or Firm:
MATOBA, Motonori (JP)
Motonori Matoba (JP)
Motonori Matoba (JP)
Download PDF:
Previous Patent: OXIDATION REACTOR AND PRODUCTION METHOD FOR OXIDE
Next Patent: CASTING SAND PROCESSING EQUIPMENT
Next Patent: CASTING SAND PROCESSING EQUIPMENT