JPS57104625A - Manufacture of fine-grain case-hardening steel - Google Patents

Manufacture of fine-grain case-hardening steel

Info

Publication number
JPS57104625A
JPS57104625A JP18114580A JP18114580A JPS57104625A JP S57104625 A JPS57104625 A JP S57104625A JP 18114580 A JP18114580 A JP 18114580A JP 18114580 A JP18114580 A JP 18114580A JP S57104625 A JPS57104625 A JP S57104625A
Authority
JP
Japan
Prior art keywords
fine
manufacture
steel
hardening steel
grain
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
JP18114580A
Other languages
Japanese (ja)
Other versions
JPS6362568B2 (en
Inventor
Takayuki Ikeda
Kazuhiko Nishida
Michitaka Fujita
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP18114580A priority Critical patent/JPS57104625A/en
Publication of JPS57104625A publication Critical patent/JPS57104625A/en
Publication of JPS6362568B2 publication Critical patent/JPS6362568B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To manufacture a fine-grain case-hardening steel causing no grain coarsening during carburizing by properly restricting the rolling conditions of a steel having a specified composition contg. C, Si, Mn, Cr, sol. Al and Nb and/or Ti.
CONSTITUTION: A steel consisting of 0.10W0.30% C, ≤0.50% Si, 0.30W1.80% Mn, 0.30W1.80% Cr, 0.005W0.060% Sol. Al, 0.01W0.10% Nb and/or Ti, and the balance Fe with inevitable impurities or further contg. 0.05W0.35% Mo is heated to the A3 pointW1,050°C and hot rolled at 850W1,000°C. By this method a case hardening steel having a normalized structure equal to that obtd. by normalizing and causing no grain coarsening during carburizing can be manufactured as hot rolled.
COPYRIGHT: (C)1982,JPO&Japio
JP18114580A 1980-12-19 1980-12-19 Manufacture of fine-grain case-hardening steel Granted JPS57104625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18114580A JPS57104625A (en) 1980-12-19 1980-12-19 Manufacture of fine-grain case-hardening steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18114580A JPS57104625A (en) 1980-12-19 1980-12-19 Manufacture of fine-grain case-hardening steel

Publications (2)

Publication Number Publication Date
JPS57104625A true JPS57104625A (en) 1982-06-29
JPS6362568B2 JPS6362568B2 (en) 1988-12-02

Family

ID=16095669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18114580A Granted JPS57104625A (en) 1980-12-19 1980-12-19 Manufacture of fine-grain case-hardening steel

Country Status (1)

Country Link
JP (1) JPS57104625A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59232252A (en) * 1983-06-13 1984-12-27 Daido Steel Co Ltd Carburizing steel
JPS61210154A (en) * 1985-03-13 1986-09-18 Kobe Steel Ltd Low strain carburizing steel
JPS6293348A (en) * 1985-10-17 1987-04-28 Daido Steel Co Ltd Steel for carburizing
JPS63199819A (en) * 1987-02-13 1988-08-18 Kobe Steel Ltd Manufacture of fine-grained steel
JPH0243319A (en) * 1988-08-01 1990-02-13 Kobe Steel Ltd Production of case hardening cr-mo steel
JPH02277744A (en) * 1982-12-28 1990-11-14 Kobe Steel Ltd Bar steel for carburizing low in amount of heat treating strain and its variance
JP2016188421A (en) * 2015-03-30 2016-11-04 株式会社神戸製鋼所 Carburized component

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4961018A (en) * 1972-10-16 1974-06-13
JPS5241114A (en) * 1975-09-29 1977-03-30 Kobe Steel Ltd Case hardening steel for cold plastic working _ gas carburizing
JPS53147616A (en) * 1977-05-31 1978-12-22 Nippon Steel Corp Case hardening steel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4961018A (en) * 1972-10-16 1974-06-13
JPS5241114A (en) * 1975-09-29 1977-03-30 Kobe Steel Ltd Case hardening steel for cold plastic working _ gas carburizing
JPS53147616A (en) * 1977-05-31 1978-12-22 Nippon Steel Corp Case hardening steel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02277744A (en) * 1982-12-28 1990-11-14 Kobe Steel Ltd Bar steel for carburizing low in amount of heat treating strain and its variance
JPS59232252A (en) * 1983-06-13 1984-12-27 Daido Steel Co Ltd Carburizing steel
JPH0454736B2 (en) * 1983-06-13 1992-09-01 Daido Steel Co Ltd
JPS61210154A (en) * 1985-03-13 1986-09-18 Kobe Steel Ltd Low strain carburizing steel
JPS6293348A (en) * 1985-10-17 1987-04-28 Daido Steel Co Ltd Steel for carburizing
JPS63199819A (en) * 1987-02-13 1988-08-18 Kobe Steel Ltd Manufacture of fine-grained steel
JPH0243319A (en) * 1988-08-01 1990-02-13 Kobe Steel Ltd Production of case hardening cr-mo steel
JP2016188421A (en) * 2015-03-30 2016-11-04 株式会社神戸製鋼所 Carburized component

Also Published As

Publication number Publication date
JPS6362568B2 (en) 1988-12-02

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