FI65280C - STEERING MICROLEGER - Google Patents
STEERING MICROLEGER Download PDFInfo
- Publication number
- FI65280C FI65280C FI2538/74A FI253874A FI65280C FI 65280 C FI65280 C FI 65280C FI 2538/74 A FI2538/74 A FI 2538/74A FI 253874 A FI253874 A FI 253874A FI 65280 C FI65280 C FI 65280C
- Authority
- FI
- Finland
- Prior art keywords
- weight
- chromium
- nickel
- carbon
- micro
- Prior art date
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 239000011651 chromium Substances 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011572 manganese Substances 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910000742 Microalloyed steel Inorganic materials 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000010955 niobium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005275 alloying Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005098 hot rolling Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 235000019362 perlite Nutrition 0.000 claims description 2
- 239000010451 perlite Substances 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- MYFXBBAEXORJNB-UHFFFAOYSA-N calcium cyanamide Chemical compound [Ca+2].[N-]=C=[N-] MYFXBBAEXORJNB-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 nitrogen form nitride Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Description
Γ. KUULUTUSJULKAISU .Γ. ANNOUNCEMENT.
LBJ l11) UTLACONINGSSKIUPT ^5280 ^ Patent aeddelat (51) K*Jk?/tat.a.3 C 22 C 38/42, 38/^6, 38/48 SUOMI—FINLAND (21) ι^»ι»^·*υ.-ι^«·βΐυ*.β 2538/7i* (22) Htkembpllv·—Anaeknlngrtag 29;Q8 'rU' (23) AlkupUvl—GUtlgfeodag 29.08 γΐ, (41) Tullut )utl»lMkil — MMt offutHg q.LBJ l11) UTLACONINGSSKIUPT ^ 5280 ^ Patent aeddelat (51) K * Jk? /Tat.a.3 C 22 C 38/42, 38 / ^ 6, 38/48 SUOMI — FINLAND (21) ι ^ »ι» ^ · * υ.-ι ^ «· βΐυ * .β 2538 / 7i * (22) Htkembpllv · —Anaeknlngrtag 29; Q8 'rU' (23) AlkupUvl — GUtlgfeodag 29.08 γΐ, (41) Tullut) utl» lMkil - MMt offutHg q .
IhrtMlttl· ja fklfrlhaiMtU» (44) ΝίΜΜΜρηο* )· kuuL|u4kafc»i pvm. — ^ FMmt· eeh ragMtontyrMMn AmMan uÄfd och ucUkiKU* puMnnd 30.12.83 (33)(33)(31) «mUim-4hM prforitM 31.08.73IhrtMlttl · ja fklfrlhaiMtU »(44) ΝίΜΜΜρηο *) · moonL | u4kafc» i pvm. - ^ FMmt · eeh ragMtontyrMMn AmMan uÄfd och ucUkiKU * puMnnd 30.12.83 (33) (33) (31) «mUim-4hM prforitM 31.08.73
Ruotsi-Sverige(SE) 7311911-7 (71) Smedjebackens Valsverks AB, Fack, 777 01 Smedjebacken, Ruotsi-Sverige(SE) (72) Äke Letmark, Smedjebacken, Ruotsi-Sverige(SE) (7M Oy Kolster Ab (5*0 Mikroseostettu teräs - Mikrolegerat st&lSweden-Sverige (SE) 7311911-7 (71) Smedjebackens Valsverks AB, Fack, 777 01 Smedjebacken, Sweden-Sverige (SE) (72) Äke Letmark, Smedjebacken, Sweden-Sverige (SE) (7M Oy Kolster Ab (5 * 0 Micro Alloy Steel - Micro Alloys st & l
Keksintö kohdistuu mikroseostettuun, suurilujuuksiseen raudoitus-ja rakenneteräkseen, jonka vetolujuus kuumavalssattuna on erittäin suuri, vähintään 60 kp/mm^ aina 20 mm:n läpimittaan ast*· Jonka , ... , -4.1.-. 1 ... - -7n°C:n lämpötilaan sattavuus ja iskusitkeys ovat erittäin hyvät aina -2u asti.The invention relates to micro-alloyed, high-strength reinforcing and structural steels with a very high tensile strength when hot-rolled, at least 60 kp / mm ^ up to a diameter of 20 mm ast * · Which, ..., -4.1.-. At 1 ... - -7n ° C the availability and impact resistance are very good up to -2u.
itiksi betoniraken- Tähän mennessä hitsatuissa rakenteissa, esimerNJ- - 4. +-+-v teräs ei saman· teihin käytetyissä hitsatuissa raudoituksissa, käytetä jgn, hyvän hitsat- aikaisesti ole täyttänyt vaadittavan suuren vetolujuus ..Until now, in welded structures, for example, NJ- - 4. + - + - v steel is not used in the same · welded reinforcements used, jgn, good welded time has not met the required high tensile strength ..
. netuissa teraslaa- tavuuden ja iskusitkeyden asettamia vaatimuksia. TuP" 2 . .. . ..Kiritään 60 kp/mm duissa, joiden vetolujuus on riittävän suuri, so. van-1 . .. requirements for steel tiling and impact toughness. TuP "2. ... .. Tightened to 60 kp / mm in showers with a sufficiently high tensile strength, ie van-1..
Pmpia olevia hii-Pmpia coal
on käytetty suuruusluokaltaan 0.28 paino-%:a tai suurBin the order of 0.28% by weight or largeB has been used
. . , . x.sattavuuden ja lipitoisuuksia, joka on aiheuttanut epätyydyttävän ru u . , K tunnetuissa te- iskusitkeyden voimassa olevien normien mukaan. Muissa . pn aina 0.14 pai- räslaaduissa on suoritettu hiilipitoisuuden alentamin^ . iskusitkeys, mut- no-%:in asti, jolloin saavutetaan hyvä hitsattavuus Ja ta vetolujuus, suuruusluokaltaan 35 kp/mm^, on liian Pie teräksen saarni-. . ,. x.availability and lipid levels, which has caused unsatisfactory ru u. , K according to known standards of impact resistance. In others. pn up to 0.14, a reduction in the carbon content has been carried out in the paste grades. impact toughness, up to -%, where good weldability is achieved And the tensile strength, on the order of 35 kp / mm ^, is too small for the steel ash.
Keksinnön tarkoituksena on siten mikroseostetun 65280 nen, joka täyttää täysin vaatimukset vetolujuuden, hitsattavuuden ja iskusitkeyden suhteen ja nämä vaatimukset täyttää täysin patenttivaatimuksissa esitetty teräs.The object of the invention is thus a microalloyed 65280 which fully meets the requirements for tensile strength, weldability and impact toughness, and these requirements are fully met by the claimed steel.
Mikroseostetun teräksen saamiseksi, jonka vetolujuus on vähin-tään 60 kp/mm vähintään 20 mm:n läpimittaisella tankoteräksellä ja erittäin hyvä hitsattavuus ja iskusitkeys aina -20°C:n lämpötilaan asti määritettynä Charpy'n V-kokeen avulla, käytetään keksinnön mukaan metalliseosta, joka sisältää 0.15 - 0.22 painoprosenttia hiiltä 0.10 - 0.60 painoprosenttia piitä 0.90 - 1.60 painoprosenttia mangaania 0.05 - 0.40 painoprosenttia kromia 0.05 - 0.40 painoprosenttia nikkeliä 0.01 - 0.40 painoprosenttia kuparia 0.06 - 0.12 painoprosenttia vanadiinia 0.02 - 0.05 painoprosenttia niobia 0.00 - 0.10 painoprosenttia happoliukoista alumiinia 0.013 - 0.025 painoprosenttia typpeä ja loppu typpeä ja epäpuhtauksia, jotka johtuvat esimerkiksi raaka-aineista, kuten rikkiä, fosforia ja tinaa ja jolloin tankoteräksen läpimitasta riippuva hii1iekvivalentti kaavan C ♦ Mn/6 ♦ (Cr ♦ V)/5 ♦ (Ni ♦ Cu)/15 (Vanadiinia £0.15 %:a ei lasketa mukaan) mukaisesti edullisesti on välissä 0.35 - 0.50 ja jolloin eri seosalku-aineet sovitetaan siten, että saavutetaan ferriitin ja perliitin hieno-rakeinen mikrorakenne ilmajäähdytyksen jälkeen kuumavalssauslämpötiloista, jotka tavallisesti ovat 900 - 1050UC. Edelleen tulee kromin, nikkelin ja kuparin yhteenlasketun pitoisuuden olla vähintään 0.20 - 0.25 %:a ja edullisesti 0.30 - 0.40 %:a valssatuista mitoista riippuen. Suositeltava teräs sisältää seosalkuaineita seiraavasti: 0.15 - 0.20 painoprosenttia hiiltä 0.15 - 0.35 painoprosenttia piitä 1.00 - 1.40 painoprosenttia mangaania 0.08 - 0.20 painoprosenttia kromia 0.08 - 0.20 painoprosenttia nikkeliä 0.12 - 0.30 painoprosenttia kuparia 0.07 - 0.12 painoprosenttia vanadiinia 65280 0.02 - 0.04 painoprosenttia niobia 0.01 - 0.05 painoprosenttia happoliukoista alumiinia 0.015 - 0.025 painoprosenttia typpeäIn order to obtain microalloyed steel with a tensile strength of at least 60 kp / mm with bar steel of at least 20 mm in diameter and very good weldability and impact resistance up to -20 ° C as determined by the Charpy V test, an alloy is used according to the invention, containing 0.15 to 0.22% by weight of carbon 0.10 to 0.60% by weight of silicon 0.90 to 1.60% by weight of manganese 0.05 to 0.40% by weight of chromium 0.05 to 0.40% by weight of nickel 0.01 to 0.40% by weight of copper 0.06 to 0.12% by weight of aluminol 0.02 to 0.05% by weight 0.025% by weight of nitrogen and the remainder of nitrogen and impurities due to, for example, raw materials such as sulfur, phosphorus and tin and where the carbon equivalent depending on the diameter of the bar steel is C ♦ Mn / 6 ♦ (Cr ♦ V) / 5 ♦ (Ni ♦ Cu) / 15 (Vanadium £ 0.15% not included) is preferably between 0.35 and 0.50 and wherein the different alloy the materials are adjusted to achieve a fine-grained microstructure of ferrite and perlite after air cooling from hot rolling temperatures, usually 900 to 1050 ° C. Furthermore, the total content of chromium, nickel and copper should be at least 0.20 to 0.25% and preferably 0.30 to 0.40% depending on the rolled dimensions. The recommended steel contains the following alloying elements as follows: 0.15 to 0.20% by weight of carbon 0.15 to 0.35% by weight of silicon 1.00 to 1.40% by weight of manganese 0.08 to 0.20% by weight of chromium 0.08 to 0.20% by weight of nickel 0.12 to 0.30% by weight 0.02% of % by weight of acid-soluble aluminum 0.015 to 0.025% by weight of nitrogen
Kromin, nikkelin ja kuparin vaikutus lujuuteen on suuri (veto- 2 lujuus vähintään 60 kp/mm ), joka nimenomaan johtuu näistä aineista ja tämän vuoksi on ollut mahdollista pitää hiilihappopitoisuus näin pienenä hitsattavuuden ja sitkeyden eduksi. Käyttämällä vähintään 0.20 %:n kuparipitoisuutta, voidaan haluttaessa saada teräs verrattain hitaasti ruostuvaksi. Teräksen hapettuminen poistetaan valusangossa lisäämällä piitä ferroseoksena ja jos halutaan myös lisätä hienorakei-suutta ja parantaa kestävyyttä vanhenemista vastaan, voidaan edullisesti lisätä myös alumiinia. Edelleen lisätään valusankoon vanadiini ja niobi, sopivasti ferroseoksina sekä lisäksi typpeä luovuttavaa kiinteää lisäainetta, esimerkiksi kalkkityppeä teräkselle tunnusomaisen suuren typpipitoisuuden saamiseksi.The effect of chromium, nickel and copper on the strength is high (tensile strength at least 60 kp / mm), which is precisely due to these materials and therefore it has been possible to keep the carbon dioxide content so low in favor of weldability and toughness. By using a copper content of at least 0.20%, the steel can be corroded relatively slowly if desired. Oxidation of the steel is removed in the ladle by adding silicon as a ferroalloy, and if it is also desired to increase the fine granularity and improve the resistance to aging, aluminum can also be advantageously added. Vanadium and niobium are further added to the ladle, suitably in the form of ferroalloys, and in addition a nitrogen-releasing solid additive, for example lime nitrogen, is obtained in order to obtain the high nitrogen content characteristic of steel.
Selitys erittäin suurelle vetolujuudelle, joka saavutetaan keksinnön avulla huolimatta siitä, että hiilipitoisuus voidaan laskea aina 0.15 painoprosenttiin asti, mikä vuorostaan antaa erittäin hyvän hitsattavuuden ja iskusitkeyden, on siinä, että niobi yhdessä hiilen ja typen kanssa muodostaa hienokiteiden mikrorakenteen aiheuttavia nitri-dejä ja sellaisen muutoksen 1iukuvastukseen teräksen liukutasoissa, että saavutetaan huomattava vetolujuuden suureneminen. Tämä odottamaton ilmiö vaatii siten pienen hiilipitoisuuden.The explanation for the very high tensile strength achieved by the invention despite the fact that the carbon content can be reduced up to 0.15% by weight, which in turn gives very good weldability and impact toughness, is that niobium together with carbon and nitrogen form nitride microstructure 1for slip resistance in steel sliding planes that a significant increase in tensile strength is achieved. This unexpected phenomenon thus requires a low carbon content.
Taulukoissa 1 ja 2 on esitetty kymmenen keksinnön mukaisen eri teräksen ominaisuudet.Tables 1 and 2 show the properties of ten different steels according to the invention.
Hitsausominaisuudet määrättiin koehitsaamalla tankoja, jolloin jokaisessa kokeessa käytettiin kahta ristiin kiinnihitsattua tankoa.Welding properties were determined by test welding rods, using two cross-welded rods in each test.
Esi lämmitystä tai jälkihehkutusta ei käytetty. Hitsausliitokset taivu-tuskoestettiin taivuttamalla 60° karan ympäri, jonka läpimitta oli lOd jolloin d on taivutettu terästangon läpimitta. Kiinnihitsaukset suoritettiin emäksisillä hitsauspuikoilla ja kokeen hyväksymiseksi vaadittiin, ettei murtumaa esiintynyt hitsausalueella, joka oli karan vastakkaisella puolella.Pre-heating or post-annealing was not used. The welded joints were tested by bending by bending 60 ° around a mandrel with a diameter of 10d, where d is the diameter of the bent steel bar. Stick welding was performed with alkaline welding rods and to accept the test, it was required that no fracture occurred in the welding area on the opposite side of the mandrel.
Tulokset taulukon 1 mukaisille eri teräksille on esitetty taulukossa 2.The results for the different steels in Table 1 are shown in Table 2.
Muita hitsausmenetelmiä sekä polttohitsausta ja vastushitsausta käyttäen suoritetut kokeet eivät muuttaneet taulukon 2 mukaisia tuloksia.Tests performed using other welding methods as well as flame welding and resistance welding did not change the results according to Table 2.
65280 465280 4
Taulukko 1table 1
Seosaineet painoprosenttia 123456789 10 C 0,21 0,20 0,17 0,20 0,18 0,20 0,19 0,21 0,15 0,15Alloys by weight 123456789 10 C 0.21 0.20 0.17 0.20 0.18 0.20 0.19 0.21 0.15 0.15
Si 0,24 0,23 0,21 0,22 0,24 0,24 0,24 0,20 0,60 0,30Si 0.24 0.23 0.21 0.22 0.24 0.24 0.24 0.20 0.60 0.30
Mn 1,30 1,25 1,16 1,07 1,06 1,18 1,30 1,32 1,2 1,19 P 0,014 0,010 0,016 0,017 0,016 0,011 0,016 0,015 0,015 0,018 S 0,024 0,024 0,030 0,027 0,032 0,022 0,041 0,019 0,019 0,024Mn 1.30 1.25 1.16 1.07 1.06 1.18 1.30 1.32 1.2 1.19 P 0.014 0.010 0.016 0.017 0.016 0.011 0.016 0.015 0.015 0.018 S 0.024 0.024 0.030 0.027 0.032 0.022 0.041 0.019 0.019 0.024
Cr 0,10 0,08 0,09 0,12 0,06 0,08 0,09 0,08 0,05 0,10Cr 0.10 0.08 0.09 0.12 0.06 0.08 0.09 0.08 0.05 0.10
Ni 0,08 0,10 0,08 0,08 0,07 0,08 0,08 0,11 0,06 0,08Ni 0.08 0.10 0.08 0.08 0.07 0.08 0.08 0.11 0.06 0.08
Cu 0,14 0,14 0,15 0,15 0.19 0,18 0,19 0,14 0,10 0,14 V 0,09 0,09 0,09 0,09 0,09 0,10 0,09 0,08 0,12 0,10Cu 0.14 0.14 0.15 0.15 0.19 0.18 0.19 0.14 0.10 0.14 V 0.09 0.09 0.09 0.09 0.09 0.10 0, 09 0.08 0.12 0.10
Nb 0,02 0,03 0,02 0,03 0,03 0,03 0,03 0,03 0,05 0,04Nb 0.02 0.03 0.02 0.03 0.03 0.03 0.03 0.03 0.05 0.04
AIOH
(happol.) 0,023 0,011 0,013 0,013 0,012 0,015 0,011 0,008 0,007 0,002 N 0,017 0,018 0,018 0,021 0,023 0,021 0,014 0,018 0,025 0,019(acid) 0.023 0.011 0.013 0.013 0.012 0.015 0.011 0.008 0.007 0.002 N 0.017 0.018 0.018 0.021 0.023 0.021 0.014 0.018 0.025 0.019
Hiili- ekvival. 0,46 0,44 0,39 0,41 0,38 0,43 0,44 0,46 0,37 0,37Carbon equivalent. 0.46 0.44 0.39 0.41 0.38 0.43 0.44 0.46 0.37 0.37
Valssaus- mitta mm 12 16 10 8 8 10 12 16 8 8Rolling dimension mm 12 16 10 8 8 10 12 16 8 8
Vetolujuus kp/mm2 68,6 66,4 66,9 65,3 68,7 70,1 67,3 65,9 64,3 63,3Tensile strength kp / mm2 68.6 66.4 66.9 65.3 68.7 70.1 67.3 65.9 64.3 63.3
Murtolujuus kp/mm2 85,8 81,8 81,5 77,5 83,1 86,0 84,5 81,3 80,0 74,3 tfs/tfB 0,80 0,81 0,82 0,84 0,83 0,82 0,80 0,81 0,80 0,85 iti r to venymä 610Z 17,4 15,6 22,3 22,5 21,7 21,8 16,7 14,8 21,0 18,9Tensile strength kp / mm2 85.8 81.8 81.5 77.5 83.1 86.0 84.5 81.3 80.0 74.3 tfs / tfB 0.80 0.81 0.82 0.84 0 .83 0.82 0.80 0.81 0.80 0.85 iti r to elongation 610Z 17.4 15.6 22.3 22.5 21.7 21.8 16.7 14.8 21.0 18 , 9
Charpy V kpm + 20°C 5,1 7,0 0°C 4,3 4,1 - 20°C 3,7 3,7 I.Charpy V kpm + 20 ° C 5.1 7.0 0 ° C 4.3 4.1 - 20 ° C 3.7 3.7 I.
65280 565280 5
Taulukko 2Table 2
Teräs Tangon Virta Elektrodin Hitsausaika Näytt. Taivutuskoe N:o läpimitta A läpimitta sek. lukum. (lOd, 60°) mm 1 12 100-135 3,25 7-9 10 kaikki hyväksytyt 2 16 " " 13 - 16 10 3 10 " " 6-9 10 5 8 " " 5-6 10 6 10 " " 6-9 10 7 12 " " 7-9 10 8 16 " " 13 - 16 10 9 8 " " 5-6 10 10 8 " " 5-6 10 "Steel Rod Current Electrode Welding Time Display Bending test No. diameter A diameter sec. Num. (10d, 60 °) mm 1 12 100-135 3.25 7-9 10 all accepted 2 16 "" 13 - 16 10 3 10 "" 6-9 10 5 8 "" 5-6 10 6 10 "" 6 -9 10 7 12 "" 7-9 10 8 16 "" 13 - 16 10 9 8 "" 5-6 10 10 8 "" 5-6 10 "
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7311911A SE392483C (en) | 1973-08-31 | 1973-08-31 | fine grain |
| SE7311911 | 1973-08-31 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI253874A7 FI253874A7 (en) | 1975-03-01 |
| FI65280B FI65280B (en) | 1983-12-30 |
| FI65280C true FI65280C (en) | 1984-04-10 |
Family
ID=20318403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI2538/74A FI65280C (en) | 1973-08-31 | 1974-08-29 | STEERING MICROLEGER |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE2440176A1 (en) |
| DK (1) | DK142118B (en) |
| FI (1) | FI65280C (en) |
| NL (1) | NL7411568A (en) |
| NO (1) | NO134470C (en) |
| SE (1) | SE392483C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2900022C3 (en) * | 1979-01-02 | 1981-12-03 | Estel Hoesch Werke Ag, 4600 Dortmund | Process for producing profiles |
-
1973
- 1973-08-31 SE SE7311911A patent/SE392483C/en unknown
-
1974
- 1974-08-22 DE DE2440176A patent/DE2440176A1/en not_active Withdrawn
- 1974-08-28 DK DK456974AA patent/DK142118B/en not_active IP Right Cessation
- 1974-08-29 FI FI2538/74A patent/FI65280C/en active
- 1974-08-30 NL NL7411568A patent/NL7411568A/en not_active Application Discontinuation
- 1974-08-30 NO NO743117A patent/NO134470C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE392483C (en) | 1985-10-14 |
| NO134470B (en) | 1976-07-05 |
| NL7411568A (en) | 1975-03-04 |
| DK142118B (en) | 1980-09-01 |
| SE7311911L (en) | 1975-03-03 |
| FI65280B (en) | 1983-12-30 |
| DK456974A (en) | 1975-04-28 |
| FI253874A7 (en) | 1975-03-01 |
| NO134470C (en) | 1976-10-13 |
| DE2440176A1 (en) | 1975-03-06 |
| NO743117L (en) | 1975-03-24 |
| DK142118C (en) | 1981-01-26 |
| SE392483B (en) | 1977-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101479826B1 (en) | Martensitic stainless steel with excellent weld characteristics, and mertensitic stainless steel material | |
| KR100940474B1 (en) | Ferritic stainless steel sheet excellent in corrosion resistance and its manufacturing method | |
| US4256486A (en) | Martensitic stainless steel having excellent weldability and workability for structural use | |
| JP3322097B2 (en) | High strength, high corrosion resistant ferritic steel welding material with excellent weldability | |
| FI65280C (en) | STEERING MICROLEGER | |
| KR960705070A (en) | Steel plate with low welding deformation and good bending workability by linear heating, and its manufacturing method and welding material and welding method WELDING MATERIAL AND METHOD FOR PRODUCING THE SAME | |
| JP5119605B2 (en) | Ferritic stainless steel with excellent corrosion resistance of welds | |
| JP2002283095A (en) | Method for producing steel wire for high heat input submerged arc welding, submerged arc welded joint, and submerged arc welded joint | |
| RU2731223C1 (en) | High-strength welded cold-resistant steel and article made therefrom | |
| DE60300060T2 (en) | Stainless steel sheets for welded construction components and their manufacturing processes | |
| JP3425517B2 (en) | High-strength section steel for supports with excellent ductility after cold working and supports | |
| JP2011514932A (en) | Alloy steel for low alloy steel to produce high tensile seamless steel pipe | |
| JP7323497B2 (en) | flux cored wire | |
| US3271138A (en) | Atmospheric corrosion resistant notch ductile high tensile strength steel | |
| JPS60152661A (en) | Bi-containing austenitic stainless free-cutting steel for food equipment | |
| JP4427521B2 (en) | Method for producing high strength thick steel plate with tensile strength of 780 MPa excellent in weldability | |
| JP3975882B2 (en) | High corrosion resistance low strength stainless steel with excellent workability and toughness of welds and its welded joints | |
| JP2882269B2 (en) | Hot rolled steel sheet excellent in weldability and method for producing the same | |
| JP3132728B2 (en) | Ferritic stainless steel with excellent formability | |
| JP4822248B2 (en) | Martensitic stainless steel sheet for automobile structure | |
| SU621788A1 (en) | Low-alloy steel | |
| JPH0762218B2 (en) | Ferritic stainless steel with excellent weldability and corrosion resistance | |
| SU834209A1 (en) | Steel | |
| SU834219A1 (en) | Steel | |
| JP2932924B2 (en) | Steel material excellent in weldability and method for producing the same |