JPS57210915A - Manufacture of refined high tensile steel with high toughness - Google Patents

Manufacture of refined high tensile steel with high toughness

Info

Publication number
JPS57210915A
JPS57210915A JP9634281A JP9634281A JPS57210915A JP S57210915 A JPS57210915 A JP S57210915A JP 9634281 A JP9634281 A JP 9634281A JP 9634281 A JP9634281 A JP 9634281A JP S57210915 A JPS57210915 A JP S57210915A
Authority
JP
Japan
Prior art keywords
temp
slab
manufacture
heating
tensile steel
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
JP9634281A
Other languages
Japanese (ja)
Other versions
JPS604250B2 (en
Inventor
Ryota Yamaba
Kentaro Okamoto
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP56096342A priority Critical patent/JPS604250B2/en
Publication of JPS57210915A publication Critical patent/JPS57210915A/en
Publication of JPS604250B2 publication Critical patent/JPS604250B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To obtain the titled steel having >=100mm. thickness by forming a steel contg. specified amounts of C, Si, Mn, Al, B and N as basic componets into a slab, heating the slab to a specified temp., hot rolling it, and hardening and tempering the hot rolled plate after cooling to below a cooling temp. corresponding to the heating temp. CONSTITUTION:A steel contg., by weight, 0.05-0.25% C, 0.05-0.6% Si, 0.3-2% Mn, 0.02-0.1% Al, 0.0003-0.005% B and 0.002-0.012% N as basic components or contg. further >=1 kind of element selected from <1% Cu, <3.5% Ni, <1% Cr, <1% Mo, <0.1% V and <0.1% Nb is formed into a slab. The slab is heated to >=1,100 deg.C heating temp. TO and hot rolled. The hot rolled plate is cooled to <=2125-1.3TO deg.C cooling temp. T corresponding to the heating temp. TO, and it is hardened and tempered.
JP56096342A 1981-06-22 1981-06-22 Manufacturing method of high toughness heat-treated high tensile strength steel Expired JPS604250B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56096342A JPS604250B2 (en) 1981-06-22 1981-06-22 Manufacturing method of high toughness heat-treated high tensile strength steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56096342A JPS604250B2 (en) 1981-06-22 1981-06-22 Manufacturing method of high toughness heat-treated high tensile strength steel

Publications (2)

Publication Number Publication Date
JPS57210915A true JPS57210915A (en) 1982-12-24
JPS604250B2 JPS604250B2 (en) 1985-02-02

Family

ID=14162331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56096342A Expired JPS604250B2 (en) 1981-06-22 1981-06-22 Manufacturing method of high toughness heat-treated high tensile strength steel

Country Status (1)

Country Link
JP (1) JPS604250B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021326A (en) * 1983-07-15 1985-02-02 Sumitomo Metal Ind Ltd Production of tempered high tensile steel having exellent toughness
JPS6070120A (en) * 1983-09-26 1985-04-20 Sumitomo Metal Ind Ltd Manufacture of steel material with high strength, toughness and satisfactory weldability
JPS60121219A (en) * 1983-12-05 1985-06-28 Sumitomo Metal Ind Ltd Production of tempered type high tension heavy-gage steel plate
JPS6187818A (en) * 1984-10-03 1986-05-06 Nippon Steel Corp Manufacture of ultrathick steel material of high strength low alloy steel
JPS61136622A (en) * 1984-12-04 1986-06-24 Nippon Steel Corp Manufacture of high strength low alloy ultrathick steel material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530048A (en) * 1978-08-25 1980-03-03 Iseki & Co Ltd Culvert former

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530048A (en) * 1978-08-25 1980-03-03 Iseki & Co Ltd Culvert former

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021326A (en) * 1983-07-15 1985-02-02 Sumitomo Metal Ind Ltd Production of tempered high tensile steel having exellent toughness
JPH0121847B2 (en) * 1983-07-15 1989-04-24 Sumitomo Metal Ind
JPS6070120A (en) * 1983-09-26 1985-04-20 Sumitomo Metal Ind Ltd Manufacture of steel material with high strength, toughness and satisfactory weldability
JPH0120210B2 (en) * 1983-09-26 1989-04-14 Sumitomo Metal Ind
JPS60121219A (en) * 1983-12-05 1985-06-28 Sumitomo Metal Ind Ltd Production of tempered type high tension heavy-gage steel plate
JPH0125371B2 (en) * 1983-12-05 1989-05-17 Sumitomo Metal Ind
JPS6187818A (en) * 1984-10-03 1986-05-06 Nippon Steel Corp Manufacture of ultrathick steel material of high strength low alloy steel
JPH0247526B2 (en) * 1984-10-03 1990-10-22 Nippon Steel Corp
JPS61136622A (en) * 1984-12-04 1986-06-24 Nippon Steel Corp Manufacture of high strength low alloy ultrathick steel material

Also Published As

Publication number Publication date
JPS604250B2 (en) 1985-02-02

Similar Documents

Publication Publication Date Title
Maynier et al. Creusot--Loire system for the prediction of the mechanical properties of low alloy steel products
SE8307123D0 (en) METHOD OF MANUFACTURING HIGH TENSILE STRENGTH STEEL PLATES
KR860001208A (en) Cold rolled steel sheet for deep drawing and manufacturing method
JPS5576020A (en) Production of steel plate stable in strength and toughness by direct hardening and tempering
JPS57210915A (en) Manufacture of refined high tensile steel with high toughness
JPS5651532A (en) Production of high-strength zinc hot dipped steel plate of superior workability
JPS55131126A (en) Production of modified by low alloy containing boron high tensile steel plate
JPS6468422A (en) Production of high tensile steel plate for building
JPS5633425A (en) Manufacture of tempered high tensile steel sheet having excellent low temperature toughness
JPS5633426A (en) Manufacture of tempered high tensile steel sheet having excellent low temperature toughness
JPS57120616A (en) Production of parts for mechanical structure
JPS5735622A (en) Manufacture of high strength steel for oil well with superior delayed fracture resistance
JPS6462415A (en) Production of high-tensile unequal-sided unequal thickness steel shape
JPS55141555A (en) Production of high tension galvanized steel sheet for press machining
SE7704046L (en) WAY TO PRODUCE HOGHALL FIXED STEEL PLATE WHICH HAS AN EXCELLENT LAYER TEMPERATURE STRENGTH AND A STRETCH LIMIT OF AT LEAST 40 KP / MMŸ2
JPS57158320A (en) Production of high tensile steel plate of good weldability
JPS5675520A (en) Manufacture of high yield ratio type nonskin-pass hot rolled high tensile steel plate
JPS5747828A (en) Production of high strength hot rolled steel plate
JPS5635722A (en) Production of thick-walled high tensile large-diameter steel pipe
JPS5726125A (en) Production of hot rolled steel plate of superior longitudinal crack resistance having low yield ratio and high tensile strength
JPS55104427A (en) Production of steel for low temperature
JPS55119124A (en) Manufacture of low yield ratio nonheat-treated high tensile steel plate
JPS5647555A (en) Manufacture of high-tensile galvanized steel plate with low yield ratio
JPS6468421A (en) Production of high-tensile steel plate for construction
JPS6428345A (en) Alloy steel for very low temperature use