JIS G3444 Stk540 yog cov khoom siv hlau steel tau teev rau cov kev siv qauv dav hlau xws li cov tshuab hluav taws xob, nrog rau cov neeg ua haujlwm hauv zejchoj, hauv lub hauv paus pales, thiab cov av av.
Nyem Qhov noWhat yog JIS G3444 tus qauv
- Carbon (c): Cov ntsiab lus siab tshaj plaws yog 0. 23%.
- Silicon (si): Cov ntsiab lus siab tshaj plaws yog 0. 55%.
- Manganese (mn): Cov ntsiab lus siab tshaj plaws yog 1.50%.
- Phosphorus (p): Cov ntsiab lus siab tshaj plaws yog 0. 040%.
- Sulphur (s): Cov ntsiab lus siab tshaj plaws yog 0. 040%.
- Chromium (cr), npib tsib), molybdenum (mo), alin, tooj (nbadium (v), thiab cerium (CE): Cov tshuaj lom neeg muaj pes tsawg leeg cov lus tsis meej rau cov ntsiab lus tsawg kawg nkaus lossis cov ntsiab lus ntau rau cov nyiaj uas tsis cuam tshuam rau cov steel cov khoom.
- Carbon (c): Carbon yog thawjCov caij tawvHauv cov hlau, muab lub zog thiab tawv tawv. Nws kuj tseem cuam tshuam rau cov hlau ductility thiab weldability.
- Silicon (si): Silicon feem ntau ntxiv rau cov hlau rautxhim kho nws lub zog tsis ua rau nws heev nkigCov. Nws kuj tseem muaj cov nyhuv desexidizing thiab tuaj yeem txhim kho cov hlau ua kom tsis txhob muaj qhov ntsuas ntawm qhov kub.
- Manganese (mn): Manganese yog ib qho tseem ceeb ua ke uasUa kom muaj zog thiab kev nyuajntawm hlau. Nws tseem muaj lub luag haujlwm hauv deoxidation thaum lub sij hawm steelmaking thiab tuaj yeemTxhim kho cov hlau tiv thaiv tau hnav thiab poob siab .
- Phosphorus (p) thiab Sulphur (s): Phosphorus thiab leej faj yog feem ntau suav hais tias ib tug impurity nyob rau hauv steel raws li nws tuaj yeem txo cov qauv hlau ua kom nruj thiab muaj kev nruj. Txawm li cas los xij, me me, nws tuaj yeem pab txhawb rau lub zog ntawm cov hlau.
Cov tswj hwm ntawm cov ntsiab lus no yog qhov tseem ceeb rau kev ua tiav cov khoom siv xav tauHauv STK540 hlau, xws li lub zog tensile, tawm taw tes, thiab elongation.Cov tshuaj tshwj xeeb muaj kev sib xyaw ua kom ntseeg tau tias cov hlau tsim nyog rau nws cov ntawv thov cov txheej txheem, ntsuas lub zog, ducability, thiab weldability.
Cov Khoom Siv Neeg Kho Tshuab
| Cov Khoom Siv Neeg Kho Tshuab | ||||||
| Lub cim ntawm qib |
Lub tensile lub zog N / mm² |
Paib ntawm pov thawj txhawj xeeb N / mm² |
Lub tensile Lub zog nyob rau hauv Weld cheeb tsam N / mm² |
Ua kom tiaj | Ntaus | |
| Qho deb nruab nrab daim hlau (H) |
Khoov kaum sab xis a |
Nyob hauv qho dav |
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| Kev thov sab nraud lub cheeb | ||||||
| Tag nrho cov sab nraud Diameters |
Tag nrho cov sab nraud Diameters |
Tag nrho cov sab nraud Diameters |
Tag nrho cov sab nraud Diameters |
50 hli max. | ||
| Stk540 | 540 min. | 390 min. | 540 min. | 8D | 90 degree | 6D |
| Nco tseg 1 DOF cov lus no yog sab nraud ntawm lub raj. NCO 2 1 n / hli =1 mpa mpa Nco ntsoov) tus qauv ntawm khoov kaum sab xis yuav yog qhov pib taw tes khoov. |
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- Lub zog tensile: Qhov tsawg kawg tensile lub zog ntawm stk540 steel yog 540 n / mm². Lub zog tensile yog qhov kev ntxhov siab tshaj plaws uas cov khoom sivtuaj yeem tiv taus thaum tab tom ncab lossis rub tawm ua ntej tawgCov. Nws yog cov cuab yeej tseem ceeb rau kom ntseeg tau tias cov hlau tuaj yeem thev naus laus zis nws yuav raug rau hauv kev pabcuam yam tsis muaj kev ua tsis tiav.
- Paib muaj tseeb ntawm cov pov thawj kev ntxhov siab: Yam tsawg kawg yog tau tshwm sim taw tes ntawm cov ntawv pov thawj kev ntxhov siab rau Stk540 yog 390 n / mm². Qhov no yog qhov kev ntxhov siab uas cov khoom pib deform plastically yam tsis muaj kev ntxhov siab ntxiv.Nws qhia txog qhov pib ntawm kev deformationThiab yog ib qho tseem ceeb rau cov ntawv thov uas cov hlau yuav tsum ceev nws cov duab hauv qab load.
- Tensile lub zog hauv weld cheeb tsam: Qhov tsawg kawg nkaus tensile zog hauv lub chaw weld kuj 540 n / mm². Cov cuab yeej no yog qhov tseem ceeb rau Welded qauvTxhawm rau kom ntseeg tau tias qhov chaw welded muaj lub zog zoo sib xwsrau cov khoom siv hauv paus, tiv thaiv tsis ua haujlwm ntawm Weld ntsiab lus.
- Ntaus: Bendability yog hais txog kev muaj peev xwm ntawm cov hlau yuav khoov duav tsis tau tawg los yog fracturing. Rau STK540, cov kaum sab xis yog 90 degree, thiab sab hauv vojvoog yog 6 npaug sab nraud lub taub (6D). Cov cuab yeej no yog qhov tseem ceeb rau cov ntawv thov uas cov hlau leeg yuav tsum tau khoov duav lossis tsim rau hauv cov duab uas tsis tas poob lawv cov qauv kev ntseeg.
Cov cuab yeej siv cov khoom siv no yog qhov tseem ceeb rau kev nyab xeeb thiab txhim khu kev qha ntawm STK540 steel hauv kev tsim thiab engineering kev siv. Lawv xyuas kom meej tias cov hlau tuaj yeem tiv thaiv cov kev nyuab siab thiab hom kev ntxhov siab nws yuav ntsib, tswj nws cov kev ua tau zoo thiab lub sijhawm ua haujlwm ntev dua.
Qhov sib txawv ntawm JIS G3444 Stk540 thiab lwm cov qib
- Lub zog tensile: Stk540 muaj qhov tsawg kawg tensile lub zog ntawm 540 n / mm², uas yogsiab duaPiv rau Stk290 (290 N / MMOL), STK400 (400 n / mM²), stk490 (490 n / mM²), thiab Stk500 (500 n / mmol).
- Yig tau taw tes lossis pov thawj kev ntxhov siab: Stk540 muaj qhov tsawg kawg yog cov lus pomLos yog pov thawj kev ntxhov siab ntawm 390 n / mm², uas kuj yog siab dua rau lwm qib.
- Tshuaj Muaj Tshuaj: Cov tshuaj lom neeg sib txawv sib txawv ntawm cov qib, nrogStk540 muaj cov ntsiab lus muaj zog tshaj plawsntawm 0. 23%, uas ua rau nws lub zog siab dua.
Kev kho cov npoo npoo
Kev kho cov npoo yog qhov tseem ceeb rau kev txhim kho lub hnub ntev thiab kev ua tau zoo ntawm STK540 hauv ntau cov ntawv thov, suav nrog kev tsim kho vaj tsev thiab cov qauv vajtse. Kev kho kom zoo pab kom tiv thaiv corrosion, muab cov khoom siv kho tshuab, thiab ua kom cov hlau tuaj yeem tiv thaiv kev ntxhov siab ib puag ncig ib puag ncig.
- Galvanization: Cov txheej txheem no cuam tshuam cov hlau nrog ib txheej ntawm zinc los muab corrosion tsis kam. Galvanized Surfaces yog tau txais txiaj ntsig tshwj xeeb rau cov kev siv sab nraum zoov uas raug rau cov dej noo thiab cov ntsiab lus ib puag ncig yog qhov kev txhawj xeeb.
- Roj: Cov roj tiv thaiv tiv thaiv yog thov kom tiv thaiv cov xeb tsim thaum lub sijhawm cia thiab tsheb thauj mus los. Qhov kev kho no yog qhov tseem ceeb rau kev saib xyuas kev ncaj ncees ntawm cov hlau ua ntej nws muab tso rau hauv kev pabcuam.
- Daim duab: Thov cov xim rau saum npoo av tuaj yeem muab kev tiv thaiv ntxiv rau kev tiv thaiv kev xeb thiab txhim kho kev pom zoo ntawm cov qauv steel. Xim tuaj yeem ua raws li kev thaiv kev tiv thaiv ib puag ncig cov khoom.
- Yuav tsis tiav: Hauv qee kis, Stk540 tuaj yeem muab nrog qhov tsis tiav, lub ntsiab lus nws tsis muaj teeb meem ntxiv. Qhov no feem ntau yog siv thaum txuas ntxiv lossis kev kho mob yuav tau thov los ntawm tus neeg siv kawg.
Cov Ntawv Thov
- Civil engineering thiab architecture: Stk540 yog siv hauv kev tsim kho cov tshuab hlau, Footing Piles, Chaw Av Hluav Taws Xob los vim tias nws lub zog siab thiab lub zog.
- Choj Engineering: Nws yog qhov haum rau kev tsim lub choj sib xyaw xws li ci ci, piers, thiab abutments vim yog nws lub zog zoo thiab tawv ncauj.
- Kev tsim kho lub tsev: Stk540 tau thov siv hauv cov duab ncej, vov tsev qub, thiab facades.
- Muaj Cov Ntawv Thov: General JIS G3444 Cov kav dej steel, suav nrog STK540, tau siv los tsim cov qauv kev txhawb nqa, conveying tshuab, thiab cov cuab yeej siv.
Qhov Zoo
- Lub teeb hnyav: Stk540 yog sib dua hauv qhov hnyav piv rau lwm tus cov hlau, ua rau nws muaj kev lag luam steel-seem steel.
- Corrosion Kuj: Nws ua kom tsis kam rau corrosion, acid, alkali, ntsev, thiab atmospheric corrosion, nrog rau kev kub siab rau kev kub siab.
- Cov Khoom Siv Neeg Kho Tshuab: Stk540 muaj lub zog muaj zog tensile lub zog, cov hlais zoo, corrosion tsis kam, thiab poob siab tsis kam.
- Kev Ua Yooj Yim: Nws muaj cov khoom siv zoo thiab yog cov txheej txheem yooj yim.
- Elasticity thiab rov muaj peev xwm: Stk540 yog dav dav thiab tuaj yeem rov qab siv tau hauv cov tshuab thiab khoom siv; Nws kuj yog piv txwv.
Hauv cov ntsiab lus, JIS G3444 STK540 yog xaiv rau nwssiab lub zog thiab kev ruaj khov, ua rau nws cov ntawv thov xav tau ntau dua piv rau lwm qib hauv JIS G3444 tus qauv. Nws zoo nyob rau hauv cov nqe lus ntawmCorrosion tsis kam, cov khoom siv neeg kho tshuab, thiab kev ua kom yooj yimUa rau nws xaiv qhov kev xaiv uas xav tau nyob rau ntau yam kev tsim kho tshiab thiab kev tsim kho.
Cim npe nrov: JIS G3444 Stk540 Hollow Secture, Tuam Tshoj, Tuam Tshoj chaw tsim khoom, Hoobkas, nqe
