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Title:
SULFURIC ACID DEW POINT CORROSION-RESISTANT STEEL
Document Type and Number:
WIPO Patent Application WO/2018/038197
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a sulfuric acid dew point corrosion-resistant steel which simultaneously achieves excellent resistance to sulfuric acid dew point corrosion and productivity, and which also has excellent bending properties and anti-fatigue properties. This invention relates to a sulfuric acid dew point corrosion-resistant steel which has a prescribed component composition and in which the content of S, Cu, Sn and Sb satisfy expression (1) below and the content of Cu, Ni, Sn, Sb and Co satisfy the relation of expression (2) below. 0.50 ≦ [%Cu] / (10×[%S]+[%Sn]+[%Sb]) ≦ 5.00 ... (1) 0.50 ≦ ([%Ni]+5×[%Co]) / ([%Cu]+[%Sb]+10×[%Sn]) ≦ 2.50 ... (2) Here, [%S], [%Cu], [%Ni], [%Sn], [%Sb] and [%Co] are the content (mass%) of S, Cu, Ni Sn, Sb and Co, respectively, in the component composition.

Inventors:
INOHARA YASUTO (JP)
MURASE MASATSUGU (JP)
KIKUCHI HIROYASU (JP)
KIRIMOTO SHUNJI (JP)
Application Number:
PCT/JP2017/030261
Publication Date:
March 01, 2018
Filing Date:
August 24, 2017
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
C22C38/00; C22C38/60; C21D8/02; C21D9/46
Foreign References:
JP2013001932A2013-01-07
JP2007239095A2007-09-20
JP2010216005A2010-09-30
JP2011094184A2011-05-12
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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