JPS57140861A - Boron steel with high yield ratio and high temper softening resistance - Google Patents

Boron steel with high yield ratio and high temper softening resistance

Info

Publication number
JPS57140861A
JPS57140861A JP2747981A JP2747981A JPS57140861A JP S57140861 A JPS57140861 A JP S57140861A JP 2747981 A JP2747981 A JP 2747981A JP 2747981 A JP2747981 A JP 2747981A JP S57140861 A JPS57140861 A JP S57140861A
Authority
JP
Japan
Prior art keywords
yield ratio
temper softening
softening resistance
boron steel
steel
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
JP2747981A
Other languages
Japanese (ja)
Inventor
Heijiro Kawakami
Morifumi Nakamura
Hakobu Yadohisa
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP2747981A priority Critical patent/JPS57140861A/en
Publication of JPS57140861A publication Critical patent/JPS57140861A/en
Pending legal-status Critical Current

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  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: To improve the yield ratio and temper softening resistance of boron steel by combinedly adding Cu and V to the Mn-Cr-B medium-carbon steel.
CONSTITUTION: This born steel with a high yield ratio and high temper softening resistance has a composition consisting of 0.3W0.5% C, ≤1.0% Si, 0.5W2% Mn, ≤1.5% Cr, 0.1W0.5% Cu, 0.0005W0.005% B, 0.1W0.3% V, 0.005W0.05% Ti, ≤0.06% Al and the balance Fe with impurities or further contg. 0.05W0.2% Nb. This boron steel is superior to an Mn-Cr-Mo medium-carbon steel of the same kind in yield ratio and temper softening ratio.
COPYRIGHT: (C)1982,JPO&Japio
JP2747981A 1981-02-25 1981-02-25 Boron steel with high yield ratio and high temper softening resistance Pending JPS57140861A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2747981A JPS57140861A (en) 1981-02-25 1981-02-25 Boron steel with high yield ratio and high temper softening resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2747981A JPS57140861A (en) 1981-02-25 1981-02-25 Boron steel with high yield ratio and high temper softening resistance

Publications (1)

Publication Number Publication Date
JPS57140861A true JPS57140861A (en) 1982-08-31

Family

ID=12222253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2747981A Pending JPS57140861A (en) 1981-02-25 1981-02-25 Boron steel with high yield ratio and high temper softening resistance

Country Status (1)

Country Link
JP (1) JPS57140861A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9187795B2 (en) 2009-12-11 2015-11-17 Ihi Corporation Mist cooling apparatus, heat treatment apparatus, and mist cooling method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9187795B2 (en) 2009-12-11 2015-11-17 Ihi Corporation Mist cooling apparatus, heat treatment apparatus, and mist cooling method

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