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EA201300886A1 - LOW-ALLOYED HOSE-CONTAINING STEEL FOR CEMENTED PARTS - Google Patents

LOW-ALLOYED HOSE-CONTAINING STEEL FOR CEMENTED PARTS

Info

Publication number
EA201300886A1
EA201300886A1 EA201300886A EA201300886A EA201300886A1 EA 201300886 A1 EA201300886 A1 EA 201300886A1 EA 201300886 A EA201300886 A EA 201300886A EA 201300886 A EA201300886 A EA 201300886A EA 201300886 A1 EA201300886 A1 EA 201300886A1
Authority
EA
Eurasian Patent Office
Prior art keywords
hrc
molybdenum
distance
boron
manganese
Prior art date
Application number
EA201300886A
Other languages
Russian (ru)
Other versions
EA025921B1 (en
Inventor
Сергей Петрович Руденко
Александр Леонидович Валько
Алексей Алексеевич Шипко
Лариса Романовна Дудецкая
Георгий Прокопьевич Горецкий
Original Assignee
Государственное Научное Учреждение "Объединенный Институт Машиностроения Национальной Академии Наук Беларуси"
Государственное Научное Учреждение "Физико-Технический Институт Национальной Академии Наук Беларуси"
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 Государственное Научное Учреждение "Объединенный Институт Машиностроения Национальной Академии Наук Беларуси", Государственное Научное Учреждение "Физико-Технический Институт Национальной Академии Наук Беларуси" filed Critical Государственное Научное Учреждение "Объединенный Институт Машиностроения Национальной Академии Наук Беларуси"
Priority to EA201300886A priority Critical patent/EA025921B1/en
Publication of EA201300886A1 publication Critical patent/EA201300886A1/en
Publication of EA025921B1 publication Critical patent/EA025921B1/en

Links

Landscapes

  • Heat Treatment Of Articles (AREA)
  • Gears, Cams (AREA)

Abstract

Изобретение относится к металлургии, а именно к конструкционным сталям с повышенными механическими свойствами и регламентированной прокаливаемостью и может быть использовано при изготовлении зубчатых колес энергонасыщенных машин. Предложена низколегированная борсодержащая сталь для цементуемых деталей, содержащая углерод, кремний, марганец, хром, никель, молибден, алюминий, кальций, бор, железо и примеси, отличающаяся тем, что дополнительно содержит ниобий при следующем соотношении компонентов, мас.%: углерод 0,18-0,23, марганец 0,40-0,70, кремний 0,17-0,37, хром 0,40-0,70, никель 0,40-0,70, молибден 0,15-0,25, алюминий 0,02-0,05, кальций 0,0004-0,0050, бор 0,008-0,015, ниобий 0,03-0,045, железо и неизбежные примеси - остальное, при этом суммарное содержание марганца, хрома, никеля и молибдена находится в пределах 1,35-2,35 мас.%, а отношение молибдена к бору находится в пределах от 10:1 до 30:1. В качестве примесей сталь содержит фосфор ≤0,025 мас.%, серу ≤0,025% и медь ≤0,15%. Прокаливаемость (твердость образца при торцевой закалке) соответствует: на расстоянии от торца образца 3 мм - от 44 до 47 HRC; на расстоянии 11,0 мм - от 33 до 47 HRC; на расстоянии 20,0 мм - от 20 до 44 HRC; на расстоянии 40,0 мм - от 13 до 33 HRC. Заявляемая сталь обладает регламентированной прокаливаемостью, более высокими значениями предела текучести, ударной вязкости и предела выносливости.The invention relates to metallurgy, in particular to structural steels with enhanced mechanical properties and regulated hardenability and can be used in the manufacture of gear wheels of high-powered machines. Proposed low-alloy boron steel for cemented parts containing carbon, silicon, manganese, chromium, nickel, molybdenum, aluminum, calcium, boron, iron and impurities, characterized in that it also contains niobium in the following ratio, wt.%: Carbon 0, 18-0.23, manganese 0.40-0.70, silicon 0.17-0.37, chromium 0.40-0.70, nickel 0.40-0.70, molybdenum 0.15-0.25 , aluminum 0.02-0.05, calcium 0.0004-0.0050, boron 0.008-0.015, niobium 0.03-0.045, iron and inevitable impurities - the rest, while the total content of manganese, chromium, nickel and molybdenum is within 1.35 -2.35 wt.%, And the ratio of molybdenum to boron is in the range from 10: 1 to 30: 1. As impurities, the steel contains phosphorus ≤0.025 wt.%, Sulfur ≤0255% and copper ≤0.15%. The hardenability (hardness of the specimen during end hardening) corresponds to: at a distance of 3 mm from the end of the specimen - from 44 to 47 HRC; at a distance of 11.0 mm - from 33 to 47 HRC; at a distance of 20.0 mm - from 20 to 44 HRC; at a distance of 40.0 mm - from 13 to 33 HRC. The inventive steel has a regulated hardenability, higher values of yield strength, impact strength and fatigue limit.

EA201300886A 2013-06-24 2013-06-24 Low-alloyed, boron-containing steel for face-hardened parts EA025921B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EA201300886A EA025921B1 (en) 2013-06-24 2013-06-24 Low-alloyed, boron-containing steel for face-hardened parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EA201300886A EA025921B1 (en) 2013-06-24 2013-06-24 Low-alloyed, boron-containing steel for face-hardened parts

Publications (2)

Publication Number Publication Date
EA201300886A1 true EA201300886A1 (en) 2014-12-30
EA025921B1 EA025921B1 (en) 2017-02-28

Family

ID=52248261

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201300886A EA025921B1 (en) 2013-06-24 2013-06-24 Low-alloyed, boron-containing steel for face-hardened parts

Country Status (1)

Country Link
EA (1) EA025921B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111024533A (en) * 2019-12-06 2020-04-17 阳江十八子刀剪制品有限公司 Method for detecting steel materials cut by cutter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1567653A1 (en) * 1988-08-05 1990-05-30 Центральный научно-исследовательский институт черной металлургии им.И.П.Бардина Carburizing structural steel
JP2003049241A (en) * 2001-06-01 2003-02-21 Daido Steel Co Ltd Free cutting steel
JP3918787B2 (en) * 2003-08-01 2007-05-23 住友金属工業株式会社 Low carbon free cutting steel
RU2363753C1 (en) * 2008-02-15 2009-08-10 Открытое акционерное общество "Оскольский электрометаллургический комбинат" (ОАО "ОЭМК") Low-alloy boron steel of high treatability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111024533A (en) * 2019-12-06 2020-04-17 阳江十八子刀剪制品有限公司 Method for detecting steel materials cut by cutter

Also Published As

Publication number Publication date
EA025921B1 (en) 2017-02-28

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG TJ TM RU