JPS5521535A - Producing method of highly tough and tensile low alloy steel - Google Patents

Producing method of highly tough and tensile low alloy steel

Info

Publication number
JPS5521535A
JPS5521535A JP9338378A JP9338378A JPS5521535A JP S5521535 A JPS5521535 A JP S5521535A JP 9338378 A JP9338378 A JP 9338378A JP 9338378 A JP9338378 A JP 9338378A JP S5521535 A JPS5521535 A JP S5521535A
Authority
JP
Japan
Prior art keywords
highly tough
alloy steel
producing method
less
low alloy
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.)
Granted
Application number
JP9338378A
Other languages
Japanese (ja)
Other versions
JPS5721009B2 (en
Inventor
Susumu Aida
Kunio Watanabe
Yoshio Hashimoto
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 JP9338378A priority Critical patent/JPS5521535A/en
Publication of JPS5521535A publication Critical patent/JPS5521535A/en
Publication of JPS5721009B2 publication Critical patent/JPS5721009B2/ja
Granted legal-status Critical Current

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  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To provide a highly tough and tensile steel useful for a line pipe or the like used in cold district by rolling the steel containing special amounts of C, Si, Mn, SolAl, Cr, Ni, Cu, Mn and W with higher than No.5 of γ grain size under predetermined conditions.
CONSTITUTION: After a steel containing 0.05W0.25% of C, less then 1.0% of Si, 0.5W2.0% of Mn, less than 0.080% of SolAl. 0.05W0.5% of one of Cr, Ni, Cu, Mo, W is treated with higher than No.5 of γ grain size, it is rolled at higher than 30% of pressure rate at Ar3W900°C., and rolled in transformation region during 5W50% transformation at the pressure rate of 10W60%. After the rolling process, it is air cooled or heat treated at less than Ar1 to thereby obtain a highly tough and tensile steel.
COPYRIGHT: (C)1980,JPO&Japio
JP9338378A 1978-07-31 1978-07-31 Producing method of highly tough and tensile low alloy steel Granted JPS5521535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9338378A JPS5521535A (en) 1978-07-31 1978-07-31 Producing method of highly tough and tensile low alloy steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9338378A JPS5521535A (en) 1978-07-31 1978-07-31 Producing method of highly tough and tensile low alloy steel

Publications (2)

Publication Number Publication Date
JPS5521535A true JPS5521535A (en) 1980-02-15
JPS5721009B2 JPS5721009B2 (en) 1982-05-04

Family

ID=14080778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9338378A Granted JPS5521535A (en) 1978-07-31 1978-07-31 Producing method of highly tough and tensile low alloy steel

Country Status (1)

Country Link
JP (1) JPS5521535A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011156983A1 (en) * 2010-06-13 2011-12-22 齐齐哈尔轨道交通装备有限责任公司 Method for producing steel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60203267A (en) * 1984-03-27 1985-10-14 旭メデイカル株式会社 Filter apparatus for removing leucocyte
JPS60193468A (en) * 1984-03-15 1985-10-01 旭メデイカル株式会社 Leucocyte removal filter
JPS60194959A (en) * 1984-03-19 1985-10-03 旭メデイカル株式会社 Modified blood component removing filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011156983A1 (en) * 2010-06-13 2011-12-22 齐齐哈尔轨道交通装备有限责任公司 Method for producing steel

Also Published As

Publication number Publication date
JPS5721009B2 (en) 1982-05-04

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