JPS56130453A - Tough spheroidal graphite cast iron and its heat treatment - Google Patents

Tough spheroidal graphite cast iron and its heat treatment

Info

Publication number
JPS56130453A
JPS56130453A JP3246380A JP3246380A JPS56130453A JP S56130453 A JPS56130453 A JP S56130453A JP 3246380 A JP3246380 A JP 3246380A JP 3246380 A JP3246380 A JP 3246380A JP S56130453 A JPS56130453 A JP S56130453A
Authority
JP
Japan
Prior art keywords
cast iron
spheroidal graphite
contg
graphite cast
graphite
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
JP3246380A
Other languages
Japanese (ja)
Inventor
Toru Matsushita
Toshinori Akazawa
Katsuya Igawa
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.)
Riken Corp
Original Assignee
Riken 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 Riken Corp filed Critical Riken Corp
Priority to JP3246380A priority Critical patent/JPS56130453A/en
Publication of JPS56130453A publication Critical patent/JPS56130453A/en
Pending legal-status Critical Current

Links

Landscapes

  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE: To provide tough spheroidal graphite cast iron contg. C, Si, Mn, P, S and a graphite spheroidizine element, further contg. Cu and/or Ni by a percentage within a specified range, and having a fine mixed structure consisting of ferrite and bainite grains and contg. spheroidal graphite crystallized in the matrix.
CONSTITUTION: This spheroidal graphite cast iron contains 3.0W4.0% C, 1.0W 3.5% Si, ≤1% Mn, ≤0.1% P, ≤0.02% S and ≤0.07% Mg or other graphite spheroidizine element and further contains Cu and/or Ni by a percentage within the range bounded by A, B, C, D and E in the figure. In order to obtain the cast iron, the above-mentioned composition is heated to a temp. within the eutectoid transformation temp. zone to form a ferrite-austenite two-phase structure. The cast iron having this two-phase structure is then dipped in a hot bath of 250W370°C and kept to isothermally transform the austenite grains into bainite ones.
COPYRIGHT: (C)1981,JPO&Japio
JP3246380A 1980-03-14 1980-03-14 Tough spheroidal graphite cast iron and its heat treatment Pending JPS56130453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3246380A JPS56130453A (en) 1980-03-14 1980-03-14 Tough spheroidal graphite cast iron and its heat treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3246380A JPS56130453A (en) 1980-03-14 1980-03-14 Tough spheroidal graphite cast iron and its heat treatment

Publications (1)

Publication Number Publication Date
JPS56130453A true JPS56130453A (en) 1981-10-13

Family

ID=12359656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3246380A Pending JPS56130453A (en) 1980-03-14 1980-03-14 Tough spheroidal graphite cast iron and its heat treatment

Country Status (1)

Country Link
JP (1) JPS56130453A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161748A (en) * 1982-03-01 1983-09-26 ポンタ−ム−ソン・エス・ア− Centrifugal spherical graphite casted pipe and manufacture
JPS60500217A (en) * 1983-01-24 1985-02-21 フオ−ド　モ−タ−　カンパニ− Method of manufacturing ductile iron with improved strength
JP2009001865A (en) * 2007-06-21 2009-01-08 Asahi Tec Corp Spheroidal graphite cast iron member
CN109852886A (en) * 2019-03-25 2019-06-07 山东润源实业有限公司 A kind of spheroidal graphite cast-iron of high-intensity and high-tenacity, crankshaft and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262116A (en) * 1975-11-17 1977-05-23 Kashiya Igawa High strength spherulitic graphite cast iron and heat treatment for the same
JPS5354117A (en) * 1976-10-28 1978-05-17 Riken Piston Ring Ind Co Ltd Wear resistant cast iron
JPS558444A (en) * 1978-07-04 1980-01-22 Asahi Malleable Iron Co Ltd High toughness cast iron and its preparation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262116A (en) * 1975-11-17 1977-05-23 Kashiya Igawa High strength spherulitic graphite cast iron and heat treatment for the same
JPS5354117A (en) * 1976-10-28 1978-05-17 Riken Piston Ring Ind Co Ltd Wear resistant cast iron
JPS558444A (en) * 1978-07-04 1980-01-22 Asahi Malleable Iron Co Ltd High toughness cast iron and its preparation

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161748A (en) * 1982-03-01 1983-09-26 ポンタ−ム−ソン・エス・ア− Centrifugal spherical graphite casted pipe and manufacture
US4448610A (en) * 1982-03-01 1984-05-15 Pont-A-Mousson S.A. Centrifugally cast tube of spheroidal graphite cast-iron and its method of manufacture
JPS6343447B2 (en) * 1982-03-01 1988-08-30 Saint Gobain Pont A Mousson
JPS60500217A (en) * 1983-01-24 1985-02-21 フオ−ド　モ−タ−　カンパニ− Method of manufacturing ductile iron with improved strength
JP2009001865A (en) * 2007-06-21 2009-01-08 Asahi Tec Corp Spheroidal graphite cast iron member
CN109852886A (en) * 2019-03-25 2019-06-07 山东润源实业有限公司 A kind of spheroidal graphite cast-iron of high-intensity and high-tenacity, crankshaft and preparation method thereof
CN109852886B (en) * 2019-03-25 2024-05-14 山东速达新能源科技有限公司 High-strength high-toughness spheroidal graphite cast iron, crankshaft and preparation method thereof

Similar Documents

Publication Publication Date Title
JPS5613421A (en) Tough and hard spheroidal graphite cast iron and its manufacture
JPS556456A (en) Blank for surface hardened material having less heat treatment strain
JPS569354A (en) Tough spherical graphitic cast iron for abrasion resistant part
JPS56116858A (en) Steam turbine rotor
JPS5489916A (en) Non-magnetic stainless steel
JPS5524932A (en) Manufacture of bainite tough hardening steel
JPS56130453A (en) Tough spheroidal graphite cast iron and its heat treatment
JPS5616622A (en) Manufacture of steel for ball-and-roller bearing
JPS5565324A (en) Manufacture of low alloy steel excellent in cold workability
JPS5496418A (en) Heat resistant cast steel
JPS5524953A (en) Not thermally refined high strength steel
JPS5693859A (en) Ball alloy for grinding
JPS5760061A (en) Stainless steel
JPS5623223A (en) Production of high-young's modulus steel material
JPS55131126A (en) Production of modified by low alloy containing boron high tensile steel plate
JPS5633426A (en) Manufacture of tempered high tensile steel sheet having excellent low temperature toughness
JPS5763628A (en) Production of forge hardened parts
JPS56130422A (en) Heat treatment of spheroidal graphite cast iron roll for hot rolling
JPS57164959A (en) Nodular graphite cast iron, its heat treatment and connecting parts made of nodular graphite cast iron
JPS5375114A (en) Manufacture of structural steel
JPS5565323A (en) Manufacture of boron steel excellent in cold workability by controlled rolling
JPS5647545A (en) High-chromium white cast iron
JPS57123956A (en) High-strength cold-rolled steel plate and its manufacture
JPS5582739A (en) Alloy for hearth member with improved thermal impact resistance and high temperature compressive strength
JPS56158841A (en) Hot rolled wire rod of low-carbon killed steel ensuring long die life in cold forging