FI75870C - Kalsiumbehandlat borlegerat stål med förbättrad skärbarhet - Google Patents

Kalsiumbehandlat borlegerat stål med förbättrad skärbarhet Download PDF

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Publication number
FI75870C
FI75870C FI863918A FI863918A FI75870C FI 75870 C FI75870 C FI 75870C FI 863918 A FI863918 A FI 863918A FI 863918 A FI863918 A FI 863918A FI 75870 C FI75870 C FI 75870C
Authority
FI
Finland
Prior art keywords
boron
steel
titanium
calcium
weight
Prior art date
Application number
FI863918A
Other languages
English (en)
Finnish (fi)
Other versions
FI863918A0 (fi
FI75870B (fi
Inventor
Vesa Ollilainen
Hannu Poentinen
Martti Paju
Original Assignee
Ovako Oy
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 Ovako Oy filed Critical Ovako Oy
Priority to FI863918A priority Critical patent/FI75870C/sv
Publication of FI863918A0 publication Critical patent/FI863918A0/fi
Priority to EP87850292A priority patent/EP0265402B1/en
Priority to AT87850292T priority patent/ATE66700T1/de
Priority to DE8787850292T priority patent/DE3772511D1/de
Priority to DE198787850292T priority patent/DE265402T1/de
Publication of FI75870B publication Critical patent/FI75870B/fi
Application granted granted Critical
Publication of FI75870C publication Critical patent/FI75870C/sv

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Catalysts (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Claims (9)

1. Kalciumbehandlat härdbart borlegerat stal, kanne-tecknat av att stalets kemiska sammansettning i viktprocent är: koi 0.01 - 0.5 % silicium 0.01 - 2.0 % mangan 0.4 - 1.6 % svavel 0.01 - 0.3 % krom 0 2.0 % molybden 0 - 0.8 % bor 0.002 - 0.02 % titan 0 - 0.015% aluminium 0,005 - 0.014% kalcium 0.0015 - 0.01 % och dessutom B = (0.5 - 2) x (JJ - Ti/3.4) där B är borhalten, N kvävehalten och Ti titanhalten i viktprocent.
2. St*l enligt patentkrav 1, kännetecknat av att borets och titanets andelar i viktprocent är: bor 0.004 - 0.02 % titan 0 - 0.005 %
3. Stäl enligt patentkrav 1, kännetecknat av att borets och titanets andelar i viktprocent är bor 0.007 - 0.02 % titan 0 - 0.005 %
4. Stol enligt patentkrav 1, kännetecknat av att titanets andel i viktprocent är titan 0.005 - 0.015 %
FI863918A 1986-09-29 1986-09-29 Kalsiumbehandlat borlegerat stål med förbättrad skärbarhet FI75870C (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI863918A FI75870C (sv) 1986-09-29 1986-09-29 Kalsiumbehandlat borlegerat stål med förbättrad skärbarhet
EP87850292A EP0265402B1 (en) 1986-09-29 1987-09-28 Calcium treated boron alloyed steel with improved machinability
AT87850292T ATE66700T1 (de) 1986-09-29 1987-09-28 Mit kalzium behandelter, bor enthaltender stahl mit verbesserter zerspannbarkeit.
DE8787850292T DE3772511D1 (de) 1986-09-29 1987-09-28 Mit kalzium behandelter, bor enthaltender stahl mit verbesserter zerspannbarkeit.
DE198787850292T DE265402T1 (de) 1986-09-29 1987-09-28 Mit kalzium behandelter, bor enthaltender stahl mit verbesserter zerspannbarkeit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI863918A FI75870C (sv) 1986-09-29 1986-09-29 Kalsiumbehandlat borlegerat stål med förbättrad skärbarhet
FI863918 1986-09-29

Publications (3)

Publication Number Publication Date
FI863918A0 FI863918A0 (fi) 1986-09-29
FI75870B FI75870B (fi) 1988-04-29
FI75870C true FI75870C (sv) 1988-08-08

Family

ID=8523221

Family Applications (1)

Application Number Title Priority Date Filing Date
FI863918A FI75870C (sv) 1986-09-29 1986-09-29 Kalsiumbehandlat borlegerat stål med förbättrad skärbarhet

Country Status (4)

Country Link
EP (1) EP0265402B1 (sv)
AT (1) ATE66700T1 (sv)
DE (2) DE3772511D1 (sv)
FI (1) FI75870C (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2725747B2 (ja) * 1990-11-16 1998-03-11 大同特殊鋼株式会社 高周波焼入れ用鋼材
US5595614A (en) * 1995-01-24 1997-01-21 Caterpillar Inc. Deep hardening boron steel article having improved fracture toughness and wear characteristics
DE102010048134A1 (de) * 2010-10-11 2012-04-12 Schaeffler Technologies Gmbh & Co. Kg Vergütungsstahl
JP5837837B2 (ja) * 2012-02-08 2015-12-24 Ｊｆｅ条鋼株式会社 工具寿命に優れた硬度が３００ｈｖ１０以上の高硬度ｂｎ系快削鋼
CN104789878B (zh) * 2015-05-05 2017-03-15 内蒙古包钢钢联股份有限公司 一种高淬透性油套管接箍料用无缝钢管及制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388214A (en) * 1941-08-27 1945-10-30 Bethlehem Steel Corp Machining steels
US3634073A (en) * 1969-07-09 1972-01-11 United States Steel Corp Free-machining steel, articles thereof and method of making
FR2088862A5 (en) * 1970-04-18 1972-01-07 Nippon Kokan Kk Free cutting steel
US4265660A (en) * 1979-07-03 1981-05-05 Henrik Giflo High-strength free-cutting steel able to support dynamic stresses

Also Published As

Publication number Publication date
DE265402T1 (de) 1990-02-08
EP0265402A1 (en) 1988-04-27
EP0265402B1 (en) 1991-08-28
FI863918A0 (fi) 1986-09-29
DE3772511D1 (de) 1991-10-02
ATE66700T1 (de) 1991-09-15
FI75870B (fi) 1988-04-29

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MM Patent lapsed

Owner name: OVAKO OY AB