RU96119965A - WELDED HIGH-STRENGTH STEEL, WITH EXCELLENT LOW-TEMPERATURE SHOCK VISCOSITY - Google Patents
WELDED HIGH-STRENGTH STEEL, WITH EXCELLENT LOW-TEMPERATURE SHOCK VISCOSITYInfo
- Publication number
- RU96119965A RU96119965A RU96119965/02A RU96119965A RU96119965A RU 96119965 A RU96119965 A RU 96119965A RU 96119965/02 A RU96119965/02 A RU 96119965/02A RU 96119965 A RU96119965 A RU 96119965A RU 96119965 A RU96119965 A RU 96119965A
- Authority
- RU
- Russia
- Prior art keywords
- excellent low
- strength steel
- weight percent
- temperature toughness
- specified
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims 13
- 239000010959 steel Substances 0.000 title claims 13
- 230000035939 shock Effects 0.000 title 1
- 229910000734 martensite Inorganic materials 0.000 claims 6
- 239000000203 mixture Substances 0.000 claims 4
- 239000000126 substance Substances 0.000 claims 4
- 229910001566 austenite Inorganic materials 0.000 claims 3
- 229910001563 bainite Inorganic materials 0.000 claims 3
- 229910052804 chromium Inorganic materials 0.000 claims 3
- 229910052802 copper Inorganic materials 0.000 claims 3
- 239000012535 impurity Substances 0.000 claims 3
- 229910052748 manganese Inorganic materials 0.000 claims 3
- 229910052750 molybdenum Inorganic materials 0.000 claims 3
- 229910052759 nickel Inorganic materials 0.000 claims 3
- 229910052758 niobium Inorganic materials 0.000 claims 3
- 230000001131 transforming Effects 0.000 claims 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims 2
- 229910052720 vanadium Inorganic materials 0.000 claims 1
Claims (8)
и остальное составляет Fe и неизбежные примеси: и имеющая величину P, определенную следующей формулой, в диапазоне от 1,9 до 4,0;
причем микроструктура указанной стали содержит по меньшей мере 60%, по объемной доле, мартенсита, образованного превращением из нерекристаллизованного аустенита, имеющего эффективный средний размер аустенитных зерен (d& ) не более 10 мкм, и сумма доли указанного мартенсита и доли бейнита составляет по меньшей мере 90%:
.1. Weldable high-strength steel with excellent low-temperature toughness, containing in weight percent: C: 0.05 - 0.10%, Si: ≤ 0.6%, Mn: 1.7 - 2.5%, P: ≤ 0,015 %, S: ≤0.003%, Ni: 0.1 - 1.0%, Mo: 0.15 - 0.60%, Nb: 0.01 - 0.10%, Ti: 0.005 - 0.030%, Al: ≤0.06%, N: 0.001 - 0.006%
and the rest is Fe and unavoidable impurities: and having a P value, defined by the following formula, in the range from 1.9 to 4.0;
moreover, the microstructure of the specified steel contains at least 60%, by volume, of martensite formed by transformation from non-recrystallized austenite, having an effective average austenitic grain size (d &) of not more than 10 microns, and the sum of the fraction of said martensite and bainite fraction is at least 90 %:
.
остальное составляет Fe и неизбежные примеси; и имеющая величину P, определенную следующей формулой, в диапазоне от 2,5 до 4,0;
причем микроструктура указанной стали содержит по меньшей мере 60%, по объемной доле, мартенсита, образованного превращением из нерекристаллизованного аустенита, имеющего эффективный средний размер аустенитных зерен (dγ) не более 10 мкм, и сумма доли указанного мартенсита и доли бейнита составляет по меньшей мере 90%:
Р = 2,7 С + 0,4Si + Мn + 0,8 Сг + 0,45(Ni+Сu)+2Мо.4. Weldable high-strength steel with excellent low-temperature toughness, containing, in weight percent C: 0.05 - 0.10% Si: ≤ 0.6%, Mn: 1.7 - 2.5%, P: ≤ 0, 01%, S: ≤ 0.003%, Ni: 0.1 - 1.0%, Mo: 0.15 - 0.60%, Nb: 0.01 - 0.10%, Ti: 0.005 - 0.030%, A1 : ≤ 0.06%, N: 0.001 - 0.006%, B: 0.0003 - 0.002% and
the rest is Fe and inevitable impurities; and having a value of P defined by the following formula, in the range from 2.5 to 4.0;
moreover, the microstructure of the specified steel contains at least 60%, by volume, of martensite formed by transformation from non-recrystallized austenite having an effective average size of austenitic grains (dγ) of no more than 10 microns, and the sum of the fraction of said martensite and bainite fraction is at least 90 %:
Р = 2.7 С + 0.4Si + Мn + 0.8 Сg + 0.45 (Ni + Сu) + 2Мо.
остальное составляет Fe и неизбежные примеси;
и имеющая величину Р, определенную следующей формулой, в диапазоне от 1,9 до 2.8;
причем микроструктура указанной стали содержит по меньшей мере 60%, по объемной доле, мартенсита, образованного превращением из нерекристаллизованного аустенита, имеющего эффективный средний размер аустенитных зерен (dγ) не более 10 мкм, и сумма доли указанного мартенсита и доли бейнита составляет по меньшей мере 90%:
Р = 2,7 С + 0,4Si + Mn + 0,8 Cr+0,45 (Ni + Сu) + Мо + V - 1.6. Weldable high-strength steel with excellent low-temperature toughness, containing in weight percent C: 0.05 - 0.10% Si: ≤ 0.6% Mn: 1.7 - 2.0%, P: ≤0.0155%, S : ≤0,003%, Ni: 0.3 - 1.0%, Cu: 0.8 - 1.2%, Mo: 0.35 - 0.50%, Nb: 0.01 - 0.10%, Ti : 0.005 - 0.030%, A1: ≤0.06%, N: 0.001 - 0.006%, and
the rest is Fe and inevitable impurities;
and having a value of P defined by the following formula, in the range from 1.9 to 2.8;
moreover, the microstructure of the specified steel contains at least 60%, by volume, of martensite formed by transformation from non-recrystallized austenite having an effective average size of austenitic grains (dγ) of no more than 10 microns, and the sum of the fraction of said martensite and bainite fraction is at least 90 %:
P = 2.7 С + 0.4Si + Mn + 0.8 Cr + 0.45 (Ni + Сu) + Mo + V - 1.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP01108195A JP3244981B2 (en) | 1995-01-26 | 1995-01-26 | Weldable high-strength steel with excellent low-temperature toughness |
JP7/11081 | 1995-01-26 | ||
JP7/17303 | 1995-02-03 | ||
JP01830795A JP3244986B2 (en) | 1995-02-06 | 1995-02-06 | Weldable high strength steel with excellent low temperature toughness |
JP7/18307 | 1995-02-06 | ||
PCT/JP1996/000155 WO1996023083A1 (en) | 1995-01-26 | 1996-01-26 | Weldable high-tensile steel excellent in low-temperature toughness |
Publications (2)
Publication Number | Publication Date |
---|---|
RU96119965A true RU96119965A (en) | 1998-11-20 |
RU2136775C1 RU2136775C1 (en) | 1999-09-10 |
Family
ID=26346470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU96119965A RU2136775C1 (en) | 1995-01-26 | 1996-01-26 | High-strength weldable steel and its versions |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2136775C1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010134323A1 (en) | 2009-05-19 | 2010-11-25 | 新日本製鐵株式会社 | Steel material for welding and method for producing same |
TWI365915B (en) | 2009-05-21 | 2012-06-11 | Nippon Steel Corp | Steel for welded structure and producing method thereof |
WO2016152170A1 (en) | 2015-03-26 | 2016-09-29 | Jfeスチール株式会社 | Thick steel plate for structural pipe, method for producing thick steel plate for structural pipe, and structural pipe. |
-
1996
- 1996-01-26 RU RU96119965A patent/RU2136775C1/en active
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