JPS5524931A - Tool steel for hot processing - Google Patents

Tool steel for hot processing

Info

Publication number
JPS5524931A
JPS5524931A JP9643378A JP9643378A JPS5524931A JP S5524931 A JPS5524931 A JP S5524931A JP 9643378 A JP9643378 A JP 9643378A JP 9643378 A JP9643378 A JP 9643378A JP S5524931 A JPS5524931 A JP S5524931A
Authority
JP
Japan
Prior art keywords
tool steel
hot processing
endowed
temperature strength
nitriding treatment
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
JP9643378A
Other languages
Japanese (ja)
Other versions
JPS6154864B2 (en
Inventor
Toshio Okuno
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP9643378A priority Critical patent/JPS5524931A/en
Publication of JPS5524931A publication Critical patent/JPS5524931A/en
Publication of JPS6154864B2 publication Critical patent/JPS6154864B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: A tool steel which is endowed with excellent cracking resistance, excellent softening resistance, excellent high-temperature strength, and longer longevity by nitriding treatment and which contains C, Si, Mn, Cr, W, Mo, V, and Fe and specific amounts of usual impurities.
CONSTITUTION: The tool steel contains 0.30 to 0.45% C, ≤1.20% Si, ≤1.20% Mn, 4.00 to 4.80% Cr, 1.50 to 3.50%(0.5W + Mo), 0.60 to 1.50% V, and Fe and usual impurities, together with any one or both of ≤2.00% Ni and 0.40 to 6.00% Co as needed. The tool steel, which is endowed with excellent cracking resistance, excellent high-temperature strength, excellent softening resistance for core portion, as well as longer longevity, by nitriding treatment, is suitable for mold, e.g., Al hot extrusion die, etc., which is liable to stress concentration shapely.
COPYRIGHT: (C)1980,JPO&Japio
JP9643378A 1978-08-08 1978-08-08 Tool steel for hot processing Granted JPS5524931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9643378A JPS5524931A (en) 1978-08-08 1978-08-08 Tool steel for hot processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9643378A JPS5524931A (en) 1978-08-08 1978-08-08 Tool steel for hot processing

Publications (2)

Publication Number Publication Date
JPS5524931A true JPS5524931A (en) 1980-02-22
JPS6154864B2 JPS6154864B2 (en) 1986-11-25

Family

ID=14164867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9643378A Granted JPS5524931A (en) 1978-08-08 1978-08-08 Tool steel for hot processing

Country Status (1)

Country Link
JP (1) JPS5524931A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106828U (en) * 1980-09-17 1981-08-19
JPS605423U (en) * 1983-06-22 1985-01-16 三菱重工業株式会社 Solvent recovery equipment
JPS62130260A (en) * 1985-11-30 1987-06-12 Kobe Steel Ltd Tool steel for hot working
JPS6439816U (en) * 1987-09-02 1989-03-09
JPS6473054A (en) * 1987-09-11 1989-03-17 Showa Aluminum Corp Die for extruding zn-containing al alloy
JPH02154865A (en) * 1988-12-02 1990-06-14 Riken Corp Piston ring
JPH03207425A (en) * 1990-01-08 1991-09-10 Fujita Corp Discrimination device for filter exchanging time
WO2003106727A1 (en) * 2002-06-13 2003-12-24 Uddeholm Tooling Aktiebolag Steel and mould tool for plastic materials made of the steel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134307A (en) * 1975-05-19 1976-11-20 Hitachi Metals Ltd Martensitic tool steel for hot working
JPS51140817A (en) * 1975-05-30 1976-12-04 Hitachi Metals Ltd Martensite tool steel for hot forming
JPS5450421A (en) * 1977-09-30 1979-04-20 Daido Steel Co Ltd Hot tool steel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134307A (en) * 1975-05-19 1976-11-20 Hitachi Metals Ltd Martensitic tool steel for hot working
JPS51140817A (en) * 1975-05-30 1976-12-04 Hitachi Metals Ltd Martensite tool steel for hot forming
JPS5450421A (en) * 1977-09-30 1979-04-20 Daido Steel Co Ltd Hot tool steel

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5747055Y2 (en) * 1980-09-17 1982-10-16
JPS56106828U (en) * 1980-09-17 1981-08-19
JPH0410898Y2 (en) * 1983-06-22 1992-03-18
JPS605423U (en) * 1983-06-22 1985-01-16 三菱重工業株式会社 Solvent recovery equipment
JPS62130260A (en) * 1985-11-30 1987-06-12 Kobe Steel Ltd Tool steel for hot working
JPS6439816U (en) * 1987-09-02 1989-03-09
JPS6473054A (en) * 1987-09-11 1989-03-17 Showa Aluminum Corp Die for extruding zn-containing al alloy
JPH02154865A (en) * 1988-12-02 1990-06-14 Riken Corp Piston ring
JPH03207425A (en) * 1990-01-08 1991-09-10 Fujita Corp Discrimination device for filter exchanging time
WO2003106727A1 (en) * 2002-06-13 2003-12-24 Uddeholm Tooling Aktiebolag Steel and mould tool for plastic materials made of the steel
AU2003224591B2 (en) * 2002-06-13 2009-01-22 Uddeholms Ab Steel and mould tool for plastic materials made of the steel
AU2003224591C1 (en) * 2002-06-13 2009-08-13 Uddeholms Ab Steel and mould tool for plastic materials made of the steel
US7722727B2 (en) 2002-06-13 2010-05-25 Uddeholm Tooling Aktiebolag Steel and mould tool for plastic materials made of the steel

Also Published As

Publication number Publication date
JPS6154864B2 (en) 1986-11-25

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