JPS55128564A - Free-cutting steel having good mechanical property - Google Patents

Free-cutting steel having good mechanical property

Info

Publication number
JPS55128564A
JPS55128564A JP3428079A JP3428079A JPS55128564A JP S55128564 A JPS55128564 A JP S55128564A JP 3428079 A JP3428079 A JP 3428079A JP 3428079 A JP3428079 A JP 3428079A JP S55128564 A JPS55128564 A JP S55128564A
Authority
JP
Japan
Prior art keywords
cutting
free
steel
rem
condition
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
JP3428079A
Other languages
Japanese (ja)
Inventor
Saburo Otani
Soichi Izumi
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 JP3428079A priority Critical patent/JPS55128564A/en
Publication of JPS55128564A publication Critical patent/JPS55128564A/en
Pending legal-status Critical Current

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  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To provide the titled free-cutting steel having excellent mechanical properties and free-cutting abilities in wide range of cutting condition by incorporating Ca and rare earth metal (REM) into free-cutting steel contg. a large amount of S, in the presence of minor 0 and under specific condition.
CONSTITUTION: Into carbon steel or low alloy steel contg. 0.04W0.15% of S as essential limited component, component other than the essential limited one, such as C, Si, Mn, Cr, and Mo is incorporated in the range normally contained in carbon steel or low alloy steel for machine structure material. That is, such carbon steel is incorporated with O: 0.0060% or less, Ca: 0.0010W0.0150%, and REM: 0.005W 0.1%, under the condition of (3.5×Ca/S+REM/S)=0.2W2. Thus, simultaneous contents of Ca and REM under the above condition render sulfide oval form, and provides free-cutting steel excellent in cutting ability and mechanical properties.
COPYRIGHT: (C)1980,JPO&Japio
JP3428079A 1979-03-26 1979-03-26 Free-cutting steel having good mechanical property Pending JPS55128564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3428079A JPS55128564A (en) 1979-03-26 1979-03-26 Free-cutting steel having good mechanical property

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3428079A JPS55128564A (en) 1979-03-26 1979-03-26 Free-cutting steel having good mechanical property

Publications (1)

Publication Number Publication Date
JPS55128564A true JPS55128564A (en) 1980-10-04

Family

ID=12409743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3428079A Pending JPS55128564A (en) 1979-03-26 1979-03-26 Free-cutting steel having good mechanical property

Country Status (1)

Country Link
JP (1) JPS55128564A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5096416A (en) * 1973-12-28 1975-07-31

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5096416A (en) * 1973-12-28 1975-07-31

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