JPS56102554A - Low strain case hardening steel - Google Patents

Low strain case hardening steel

Info

Publication number
JPS56102554A
JPS56102554A JP343280A JP343280A JPS56102554A JP S56102554 A JPS56102554 A JP S56102554A JP 343280 A JP343280 A JP 343280A JP 343280 A JP343280 A JP 343280A JP S56102554 A JPS56102554 A JP S56102554A
Authority
JP
Japan
Prior art keywords
case hardening
hardening steel
low strain
strain case
carbonitriding
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
JP343280A
Other languages
Japanese (ja)
Inventor
Ryoji Tanaka
Kenji Isogawa
Norioki Uehara
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co 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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP343280A priority Critical patent/JPS56102554A/en
Publication of JPS56102554A publication Critical patent/JPS56102554A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

Abstract

PURPOSE:To provide a case hardening steel producing a slight strain in heat treatment at high temp. such as carburizing or carbonitriding by adding, C, Si, Mn and Cr or further adding Ni and/or Mo and adjusting the ranges of C, Mn, Cr, Ni and Mo so as to satisfy a specified equation. CONSTITUTION:This low strain case hardening steel contains 0.25-0.35% C, <=1.0% Si, 0.50-1.50% Mn and 0.35-1.50% Cr or further contains <=2.0% N and/or <=0.50% Mo, and the composition is essentially adjusted so that the ranges of C, Mn, Cr, Ni and Mo satisfy the equation. When a gear is formed with this case hardening steel and subjected to surface hardening such as carburizing or carbonitriding, the resulting gear holds the high strength and has a slight error in the form of the teeth.
JP343280A 1980-01-16 1980-01-16 Low strain case hardening steel Pending JPS56102554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP343280A JPS56102554A (en) 1980-01-16 1980-01-16 Low strain case hardening steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP343280A JPS56102554A (en) 1980-01-16 1980-01-16 Low strain case hardening steel

Publications (1)

Publication Number Publication Date
JPS56102554A true JPS56102554A (en) 1981-08-17

Family

ID=11557200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP343280A Pending JPS56102554A (en) 1980-01-16 1980-01-16 Low strain case hardening steel

Country Status (1)

Country Link
JP (1) JPS56102554A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255957A (en) * 1984-05-31 1985-12-17 Nissan Motor Co Ltd Steel for cold forging
JPS61117247A (en) * 1985-11-01 1986-06-04 Daido Steel Co Ltd Parts for machine structural use
JPS6362859A (en) * 1986-09-02 1988-03-19 Honda Motor Co Ltd Machine structural member for high surface pressure
JPS6447838A (en) * 1987-08-13 1989-02-22 Nippon Steel Corp Curburizing steel
JPH02243737A (en) * 1989-03-16 1990-09-27 Aichi Steel Works Ltd Heat resistant case hardening steel having excellent pitching resistance
JP2014214377A (en) * 2013-04-30 2014-11-17 大同特殊鋼株式会社 High strength gear excellent in tooth flank strength and dedendum strength

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255957A (en) * 1984-05-31 1985-12-17 Nissan Motor Co Ltd Steel for cold forging
JPH0215604B2 (en) * 1984-05-31 1990-04-12 Nitsusan Jidosha Kk
JPS61117247A (en) * 1985-11-01 1986-06-04 Daido Steel Co Ltd Parts for machine structural use
JPS6362859A (en) * 1986-09-02 1988-03-19 Honda Motor Co Ltd Machine structural member for high surface pressure
JPS6447838A (en) * 1987-08-13 1989-02-22 Nippon Steel Corp Curburizing steel
JPH02243737A (en) * 1989-03-16 1990-09-27 Aichi Steel Works Ltd Heat resistant case hardening steel having excellent pitching resistance
JP2014214377A (en) * 2013-04-30 2014-11-17 大同特殊鋼株式会社 High strength gear excellent in tooth flank strength and dedendum strength

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