JPS5743966A - Heat resistant cast alloy - Google Patents

Heat resistant cast alloy

Info

Publication number
JPS5743966A
JPS5743966A JP11884380A JP11884380A JPS5743966A JP S5743966 A JPS5743966 A JP S5743966A JP 11884380 A JP11884380 A JP 11884380A JP 11884380 A JP11884380 A JP 11884380A JP S5743966 A JPS5743966 A JP S5743966A
Authority
JP
Japan
Prior art keywords
heat resistant
increased
strength
exceeds
oxidation resistance
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
JP11884380A
Other languages
Japanese (ja)
Other versions
JPS59586B2 (en
Inventor
Shinichi Murakami
Junichi Sugitani
Makoto Takahashi
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.)
Kubota Corp
Original Assignee
Kubota 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 Kubota Corp filed Critical Kubota Corp
Priority to JP11884380A priority Critical patent/JPS59586B2/en
Publication of JPS5743966A publication Critical patent/JPS5743966A/en
Publication of JPS59586B2 publication Critical patent/JPS59586B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

PURPOSE: To obtain a heat resistant alloy excellent in creep rupture strength and oxidation resistance as compared to HP40 or the like by limiting an Mn amount in the heat resistant alloy HP40 and adding W, Mo thereto.
CONSTITUTION: Said heat resistant cast alloy comprises, in the % basis, 0.35W 0.6 C, 0.5W2.0 Si, 0.3W0.9 Mn, 24W30 Cr, 30W40 Ni, 3W6 W, 0.3W0.8 Mo, 0.04 or less P, 0.04 or less S, 0.02W0.2 N and the remainder Fe substantially. Herein, when Mn exceeds the upper limit, deterioration of oxidation resistance is induced. W is effective in increasing high temp. strength and, when exceeds the lower limit, creep rupture strength is remarkably increased and, even if exceeds the upper limit, said strength is increased but, because a material itself is hardened, reduction of ductility at a low temp. range is induced. Mo enhances creep rupture strength and, as an amount thereof is increased at the lower limit or more, said effect is increased but, when the upper limit thereof is exceeded, oxidation resistance at about 1,100°C is inhibited.
COPYRIGHT: (C)1982,JPO&Japio
JP11884380A 1980-08-28 1980-08-28 Heat resistant casting alloy Expired JPS59586B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11884380A JPS59586B2 (en) 1980-08-28 1980-08-28 Heat resistant casting alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11884380A JPS59586B2 (en) 1980-08-28 1980-08-28 Heat resistant casting alloy

Publications (2)

Publication Number Publication Date
JPS5743966A true JPS5743966A (en) 1982-03-12
JPS59586B2 JPS59586B2 (en) 1984-01-07

Family

ID=14746521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11884380A Expired JPS59586B2 (en) 1980-08-28 1980-08-28 Heat resistant casting alloy

Country Status (1)

Country Link
JP (1) JPS59586B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03111537A (en) * 1989-09-26 1991-05-13 Kubota Corp Heat-resistant alloy excellent in carburization resistance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03111537A (en) * 1989-09-26 1991-05-13 Kubota Corp Heat-resistant alloy excellent in carburization resistance

Also Published As

Publication number Publication date
JPS59586B2 (en) 1984-01-07

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