JPS55161055A - Low alloy soft-nitriding steel with superior machinability and its product - Google Patents

Low alloy soft-nitriding steel with superior machinability and its product

Info

Publication number
JPS55161055A
JPS55161055A JP6930879A JP6930879A JPS55161055A JP S55161055 A JPS55161055 A JP S55161055A JP 6930879 A JP6930879 A JP 6930879A JP 6930879 A JP6930879 A JP 6930879A JP S55161055 A JPS55161055 A JP S55161055A
Authority
JP
Japan
Prior art keywords
low alloy
low
machinability
less
major
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
JP6930879A
Other languages
Japanese (ja)
Other versions
JPS6040504B2 (en
Inventor
Sadayuki Nakamura
Kenji Isokawa
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 JP54069308A priority Critical patent/JPS6040504B2/en
Publication of JPS55161055A publication Critical patent/JPS55161055A/en
Publication of JPS6040504B2 publication Critical patent/JPS6040504B2/en
Expired 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

PURPOSE:To obtain a low alloy soft-nitriding steel contg. sulfide type inclusions with a major to minor axis ratio of 10 or less and having low mechanical anisotropy, high strength and superior machinability by adding S and Te to a Cr-contg. low alloy steel in a specified ratio. CONSTITUTION:This low alloy steel contains C; 0.10-0.35%, Si<1.5%, Mn< 2.0%, Cr; 0.50-2.50%, S; 0.010-0.30% and Te<0.10% (Te/S>0.04). It may contain one or more among V, Nb, Zr and Ti 0.50% or less, one or more among Ni, Mo, Cu, W and Co, or one or more among Pb<0.30%, Bi<0.20% and Se< 0.20%. By the above-mentioned composition most of large-sized sulfide type inclusions of 5mu or more in major axis important to machinability have a major to minor axis ratio of 10 or less, resulting in low anisotropy in mechanical properties and superior machinability. This low alloy steel is cut and softnitrided to manufacture machine parts, etc. having high strength and a small strain.
JP54069308A 1979-06-02 1979-06-02 Resistance alloy soft chamber steel with excellent machinability Expired JPS6040504B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54069308A JPS6040504B2 (en) 1979-06-02 1979-06-02 Resistance alloy soft chamber steel with excellent machinability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54069308A JPS6040504B2 (en) 1979-06-02 1979-06-02 Resistance alloy soft chamber steel with excellent machinability

Publications (2)

Publication Number Publication Date
JPS55161055A true JPS55161055A (en) 1980-12-15
JPS6040504B2 JPS6040504B2 (en) 1985-09-11

Family

ID=13398795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54069308A Expired JPS6040504B2 (en) 1979-06-02 1979-06-02 Resistance alloy soft chamber steel with excellent machinability

Country Status (1)

Country Link
JP (1) JPS6040504B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931850A (en) * 1982-08-17 1984-02-21 Daido Steel Co Ltd Soft-nitrided low-alloy steel
JPS59157262A (en) * 1983-02-28 1984-09-06 Daido Steel Co Ltd Low alloy soft nitrided steel
JPS644457A (en) * 1987-06-25 1989-01-09 Daido Steel Co Ltd Low alloy tufftrided steel
JPH01177338A (en) * 1987-12-30 1989-07-13 Aichi Steel Works Ltd Non-heat treated steel for nitriding
JPH0565594A (en) * 1991-09-09 1993-03-19 Sanyo Special Steel Co Ltd Soft-nitriding steel
US10272960B2 (en) 2015-11-05 2019-04-30 Caterpillar Inc. Nitrided track pin for track chain assembly of machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5286920A (en) * 1976-01-16 1977-07-20 Daido Steel Co Ltd Soft nitriding low alloy steel
JPS5411016A (en) * 1977-06-24 1979-01-26 Pompey Acieries Steel iron having improved processability and fine granule structure*and method of making same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5286920A (en) * 1976-01-16 1977-07-20 Daido Steel Co Ltd Soft nitriding low alloy steel
JPS5411016A (en) * 1977-06-24 1979-01-26 Pompey Acieries Steel iron having improved processability and fine granule structure*and method of making same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931850A (en) * 1982-08-17 1984-02-21 Daido Steel Co Ltd Soft-nitrided low-alloy steel
JPS59157262A (en) * 1983-02-28 1984-09-06 Daido Steel Co Ltd Low alloy soft nitrided steel
JPS644457A (en) * 1987-06-25 1989-01-09 Daido Steel Co Ltd Low alloy tufftrided steel
JPH01177338A (en) * 1987-12-30 1989-07-13 Aichi Steel Works Ltd Non-heat treated steel for nitriding
JPH0565594A (en) * 1991-09-09 1993-03-19 Sanyo Special Steel Co Ltd Soft-nitriding steel
US10272960B2 (en) 2015-11-05 2019-04-30 Caterpillar Inc. Nitrided track pin for track chain assembly of machine

Also Published As

Publication number Publication date
JPS6040504B2 (en) 1985-09-11

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