JPS57140855A - Low alloy steel for high temperature use - Google Patents

Low alloy steel for high temperature use

Info

Publication number
JPS57140855A
JPS57140855A JP2536481A JP2536481A JPS57140855A JP S57140855 A JPS57140855 A JP S57140855A JP 2536481 A JP2536481 A JP 2536481A JP 2536481 A JP2536481 A JP 2536481A JP S57140855 A JPS57140855 A JP S57140855A
Authority
JP
Japan
Prior art keywords
content
strength
bainite
steel
equation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2536481A
Other languages
Japanese (ja)
Inventor
Yasuo Otoguro
Katsukuni Hashimoto
Wataru Kabasawa
Tetsujiro Takeda
Tetsuo Kikutake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP2536481A priority Critical patent/JPS57140855A/en
Publication of JPS57140855A publication Critical patent/JPS57140855A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a steel capable of ensuring a high yield point in spite of the low alloying element content even in case of a very thick plate and having toughness by specifying the composition of a steel used at a high temp. under the creep region, the bainite content and the relation between the bainite content and the coefft. of strength.
CONSTITUTION: This low alloy steel for high temp. use consists of ≤0.20% C, ≤1.00% Si, ≤1.80% Mn, 0.10W0,35% Mo, 0.01W0.10% V, 0.005W0.05% Nb and the balance Fe with impurities and has a structure contg. 15W65% bainite. The relation between the bainite content Bm and the coefft. Gf of strength represnted by the equation exists in the range bounded by (a), (b) and (c) of the diagram. The strength of the steel is not affected separately by the components and the structure but is affected synergistically. The effects of the components in the equation exerting intense influence on the strength and toughness at high temp. have close relation with the content Bm, and the effects are increased with an increase in the content Bm. From the correlation it is required that the content Bm and Gf represented by the equation are contained in the range of the diagram.
COPYRIGHT: (C)1982,JPO&Japio
JP2536481A 1981-02-25 1981-02-25 Low alloy steel for high temperature use Pending JPS57140855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2536481A JPS57140855A (en) 1981-02-25 1981-02-25 Low alloy steel for high temperature use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2536481A JPS57140855A (en) 1981-02-25 1981-02-25 Low alloy steel for high temperature use

Publications (1)

Publication Number Publication Date
JPS57140855A true JPS57140855A (en) 1982-08-31

Family

ID=12163778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2536481A Pending JPS57140855A (en) 1981-02-25 1981-02-25 Low alloy steel for high temperature use

Country Status (1)

Country Link
JP (1) JPS57140855A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634476A (en) * 1985-05-03 1987-01-06 Paccar Inc High-strength, low-alloy cast steel
JP2002119816A (en) * 2000-10-16 2002-04-23 Sumitomo Heavy Ind Ltd Contaminant collecting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634476A (en) * 1985-05-03 1987-01-06 Paccar Inc High-strength, low-alloy cast steel
JP2002119816A (en) * 2000-10-16 2002-04-23 Sumitomo Heavy Ind Ltd Contaminant collecting device

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