JPS57123921A - Production of structural steel - Google Patents

Production of structural steel

Info

Publication number
JPS57123921A
JPS57123921A JP802881A JP802881A JPS57123921A JP S57123921 A JPS57123921 A JP S57123921A JP 802881 A JP802881 A JP 802881A JP 802881 A JP802881 A JP 802881A JP S57123921 A JPS57123921 A JP S57123921A
Authority
JP
Japan
Prior art keywords
temp
range
contg
steel
amts
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
JP802881A
Other languages
Japanese (ja)
Other versions
JPS6233287B2 (en
Inventor
Ryoji Tanaka
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 JP802881A priority Critical patent/JPS57123921A/en
Publication of JPS57123921A publication Critical patent/JPS57123921A/en
Publication of JPS6233287B2 publication Critical patent/JPS6233287B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To produce structural steel of superior toughness without performing any heat treatment by heating steel contg. specific range of amts. of C, Si, Mn, N and limited amts. or below of V, Nb, Al, Ti, etc. to rise temp., then hot- working in a specific temp. range.
CONSTITUTION: Steel contg. 0.30W0.60wt% C, 0.10W2.0% Si, 0.20W2.0% Mn, 0.005W0.020% N, and 1 or 2 kinds of ≤0.50% V and ≤0.50% Nb, and further contg. 1 or 2 kinds of ≤2.0% Al and ≤2.0% Ti, and consisting of the balance Fe and unavoidable impurities is used and is heated up to a 950W1,300°C temp. range at which its element components are solubilized to austenite and no embrittleness is caused, after which it is hot-worked at 600W1,300°C in such a way as not to cause abrasion of rolls; in addition, it is subjected to working of ≥5% reduction ratio at least 700W900°C, whereby the structure is fined. Thence, it is cooled at high rates of 1W100°C/min to the extent of not allowing formation of hard structure, whereby the product steel material is obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP802881A 1981-01-23 1981-01-23 Production of structural steel Granted JPS57123921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP802881A JPS57123921A (en) 1981-01-23 1981-01-23 Production of structural steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP802881A JPS57123921A (en) 1981-01-23 1981-01-23 Production of structural steel

Publications (2)

Publication Number Publication Date
JPS57123921A true JPS57123921A (en) 1982-08-02
JPS6233287B2 JPS6233287B2 (en) 1987-07-20

Family

ID=11681878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP802881A Granted JPS57123921A (en) 1981-01-23 1981-01-23 Production of structural steel

Country Status (1)

Country Link
JP (1) JPS57123921A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62199750A (en) * 1986-02-27 1987-09-03 Nippon Steel Corp Unrefined steel bar having superior toughness and its manufacture
JP2009215576A (en) * 2008-03-07 2009-09-24 Jfe Steel Corp Method for producing rolled non-heat treated steel material
JP2009228051A (en) * 2008-03-21 2009-10-08 Jfe Steel Corp Method for producing non-heattreated steel material
JP2010235965A (en) * 2009-03-30 2010-10-21 Nisshin Steel Co Ltd Steel sheet excellent in bendability and punching workability
CN108103397A (en) * 2017-11-30 2018-06-01 湖南铂固标准件制造有限公司 It is a kind of to be used to manufacture high-strength abrasion-proof steel material of disk roller and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5352229A (en) * 1976-10-25 1978-05-12 Nippon Steel Corp Production of high tensile high carbon steel wire rod with excellentdrawability
JPS5477217A (en) * 1977-12-01 1979-06-20 Sumitomo Metal Ind Ltd Production of rod steel without thermal refining
JPS54121225A (en) * 1978-03-14 1979-09-20 Sumitomo Metal Ind Ltd Production of nonrefined forged steel products
JPS5524953A (en) * 1978-08-11 1980-02-22 Daido Steel Co Ltd Not thermally refined high strength steel
JPS5723021A (en) * 1980-07-16 1982-02-06 Sumitomo Metal Ind Ltd Manufacture of nontempered high-strength rolled bar steel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5352229A (en) * 1976-10-25 1978-05-12 Nippon Steel Corp Production of high tensile high carbon steel wire rod with excellentdrawability
JPS5477217A (en) * 1977-12-01 1979-06-20 Sumitomo Metal Ind Ltd Production of rod steel without thermal refining
JPS54121225A (en) * 1978-03-14 1979-09-20 Sumitomo Metal Ind Ltd Production of nonrefined forged steel products
JPS5524953A (en) * 1978-08-11 1980-02-22 Daido Steel Co Ltd Not thermally refined high strength steel
JPS5723021A (en) * 1980-07-16 1982-02-06 Sumitomo Metal Ind Ltd Manufacture of nontempered high-strength rolled bar steel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62199750A (en) * 1986-02-27 1987-09-03 Nippon Steel Corp Unrefined steel bar having superior toughness and its manufacture
JPH0425343B2 (en) * 1986-02-27 1992-04-30 Nippon Steel Corp
JP2009215576A (en) * 2008-03-07 2009-09-24 Jfe Steel Corp Method for producing rolled non-heat treated steel material
JP2009228051A (en) * 2008-03-21 2009-10-08 Jfe Steel Corp Method for producing non-heattreated steel material
JP2010235965A (en) * 2009-03-30 2010-10-21 Nisshin Steel Co Ltd Steel sheet excellent in bendability and punching workability
CN108103397A (en) * 2017-11-30 2018-06-01 湖南铂固标准件制造有限公司 It is a kind of to be used to manufacture high-strength abrasion-proof steel material of disk roller and preparation method thereof

Also Published As

Publication number Publication date
JPS6233287B2 (en) 1987-07-20

Similar Documents

Publication Publication Date Title
JPS5687626A (en) Production of high strength low yield ratio high ductility composite structure steel plate of superior workability and high artificial age hardening characteristic after working
JPS57123921A (en) Production of structural steel
JPS5524932A (en) Manufacture of bainite tough hardening steel
JPS57120616A (en) Production of parts for mechanical structure
JPS57123920A (en) Production of structural steel
JPS5565324A (en) Manufacture of low alloy steel excellent in cold workability
JPS5789426A (en) Manufacture of high-hardness and wear resistant steel having excellent weldability
JPS56169723A (en) Treatment of reheating-omit type hot forging bar steel
JPS5623223A (en) Production of high-young's modulus steel material
JPS5687622A (en) Production of nonquenched high toughness high tensile steel
JPS5763628A (en) Production of forge hardened parts
JPS56105422A (en) Preparation of composite texture type high tensile hot rolled steel plate with excellent surface property
JPS5565323A (en) Manufacture of boron steel excellent in cold workability by controlled rolling
JPS55115924A (en) Production of high toughness high tensile steel plate
JPS56133424A (en) Manufacture of composite structure type high-tensile hot-rolled steel plate
JPS57104626A (en) Manufacture of fine-grain case-hardening steel
JPS5647545A (en) High-chromium white cast iron
JPS5589426A (en) Preparation of high tensile steel with excellent delayed destruction resistance
JPS57104623A (en) Manufacture of high strength and high toughness steel pipe of large diameter
JPS552749A (en) Manufacture of hot formed product of high toughness low alloy steel containing mo
JPS57134517A (en) Production of high-toughness fine-grain ferrite steel
JPS5579856A (en) High toughness, wear resistant steel
JPS56136920A (en) Production of cr-mo type boron treated steel
JPS57110622A (en) Production of steel strip
JPS56119723A (en) Manufacture of nonrefined high tensile steel with superior low temperature toughness