Dab tsi yog S235 qib steel?
S235 yog qhov tsis - ecoy ecoy, zoo ib yam li istm A36 hauv Tebchaws Meskas
- "S" sawv rau: "qauv" hlau.
- "235" Qhia: Yam tsawg kawg nkaus lub zog muaj zog ntawm 235 megapualcals (mpa) ntawm lub thickness ntawm tsawg dua lossis sib npaug rau 16 hli. Tos lub zog yog qhov kev ntxhov siab uas cov hlau pib deform mus tas li.
- Composition: Nws yog cov roj carbon hlau tsawg, ua rau nws mos, ducatively (ducast (yooj yim rau daim foos), thiab yooj yim rau weld.
- Cov kev sib txawv: cov variants tshaj plaws ntawm S235 yog qhov txawv los ntawm lawv cov kev cuam tshuam nyuaj, txhais los ntawm cov lus qhuab qhia JR, J0, thiab J2. Cov ntawv tshaj tawm (J0, J2) qhia cov khoom muaj kev cuam tshuam kov (tsis kam los ntawm kev tawg ntawm qhov kub tsawg). J2 tau zoo dua qis {- kub tawv dua jr.for cov laj thawj feem ntau yog cov lus tau teev tseg. Yog tias tus qauv yuav raug nthuav tawm kom khov txias, s235j2 yog kev xaiv muaj kev nyab xeeb.
- Tseem ceeb siv: kev ua haujlwm dav dav, cov thav duab steel, cov vaj tse, txuas hniav uas siab tshaj plaws tab sis muaj peev xwm thiab weldability yog.
S355 qib steel?
S355 yog qhov siab - lub zog, tsis muaj zog ntxiv ntawm lwm cov hom manganese (MN), thiab qee zaum niobium (nb) lossis vanadium (v). Cov kev sib ntxiv me me ntxiv yog dab tsi muab rau nws lub zog siab dua li cov hlau yooj yim dua li S235 yam tsis muaj kev cuam tshuam zoo nkauj weldability.
- Tus "S" dua sawv rau "qauv" hlau.
- Qhov "355" qhia tias yam tsawg kawg nkaus muaj zog ntawm 355 MPa rau cov qauv tuab (tsawg dua lossis sib luag rau 16 hli). Qhov no yog tshaj 50% muaj zog dua li S235.
- Cov kev sib txawv: cov sib txawv feem ntau ntawm S355 yog qhov txawv los ntawm lawv cov kev cuam tshuam los ntawm cov lus qhuab qhia nyuaj, J2, J2.QUE feem ntau thiab cov lus nrov tshaj plaws thiab nrov rau S355j2. Siv nyob rau hauv feem coob ntawm cov txheej txheem txheej txheem hauv huab cua huab cua sov.
- Tseem ceeb siv: hnyav {{{{{0} Dosting qauv qauv, cranes, ntug dej hiav txwv, thiab txhua daim ntawv thov txo lub nra hnyav yog qhov tseem ceeb.
Qhov twg yog qhov zoo dua, s235 lossis s355?
| Ntiag tug | S235 | S355 |
| Lub zog | Txo (Mutle zog: 235 mpa; tensile lub zog: 340-520 mpa) - fits} {4 4}} nruab nrab loads. | Ntau dua (min tawm lub zog: 355 mpa; tensile lub zog: 470-630 MPa siab lossis cov qauv tseem ceeb. |
| Kev ua haujlwm | Yooj yim rau weld / khoov; Tsis muaj ua ntej - Qhov kev xav tau sov uas xav tau rau cov ntu nyias - zoo tagnrho rau kev fab ntaub yooj yim. | Tseem weldable, tab sis cov kab tuab tuab yuav xav tau me me pre- pa cua sov kom tsis txhob tawg - tshuav zog thiab txheej txheem. |
| Raug Siv Siv | Cov vaj tse me (piv txwv li cov chaw nyob), tsis - cov kav dej tseem ceeb), cov kav dav dav, thiab qis} Cov khoom lag luam. | Siab -}} Rises, loj txuas, cov khoom siv hnyav (piv txwv li cov tshuab hluav taws xob hnyav), thiab nruab nrab-}}}}}} kub ripelines. |
- Xaiv S235 yog tias koj qhov project qis {{1} Tus nqi}} log, lossis siv cov khoom lag luam me me).
- Xaiv S355 yog tias koj xav tau cov load ntau dua {{}} bearing muaj peev xwm, lossis xav kom muaj peev xwm txo cov kab teeb lub ntsiab, tus choj loj).
Yog koj muaj lus nug thiab lus nug, thovHu Rau KojfaSteel yeeb nkab. lub sijhawm twg los tau. Tsaug ua ntej. Zoo siab txais tos!
Kuv yuav xaiv cov qib steel yog li cas?
Kauj ruam 1: Paub meej tias "lub zog xav tau" ntawm koj cov qauv:
- Tos lub zog: qhov kev ntxhov siab tshaj plaws cov hlau tuaj yeem siv tsis muaj kev sib zog tsis sib haum (tus yuam sij} cov kabmob} cov kabmob sib xws li cov kab teeb ci. Piv txwv li:
Tsawg load (piv txwv li, ib qho me me sab nraum zoov kiosk): s235 (235 mpa) yog txaus.
Siab thauj khoom (piv txwv li, lub Hoobkas khoom siv lub hauv paus): S355 (355 MPA) lossis siab dua.
- Kev Cuam Tshuam Kuj: Yog tias cov qauv nyob hauv huab cua txias (piv txwv li, Sab qaum teb, chaw nyob hauv S235JR, S255K2 tsis muaj huab cua tsis muaj tseeb.
Kauj ruam 2: Xav txog kev siv kev siv
Ib puag ncig txiav txim yog tias koj xav tau kev tiv thaiv ntxiv (piv txwv li, corrosion tsis kam):
Cov chaw nyob sab hauv tsev (piv txwv li, cov chaw ua haujlwm sab hauv, lub Hoobkas cob qhia): qib pib kawm S235jr / S355JR ua haujlwm.
Sab nraum zoov / Cheeb Tsam (piv txwv li, sab nraum zoov billboards, cov choj qaum teb): Cov kab mob sab qaum teb uas tsis kam tiv (S235J2, S355J2).
Corrosive ib puag ncig (piv txwv li cov ntug dej hiav txwv
Kauj ruam 3: Xav tau kev ntsuas kev ntsuas
Txheeb xyuas cov kauj ruam dab tsi koj qhov project yuav tsum (piv txwv li, vuam, dabtsi yog khoov):
Vuam {{0- Cov phiaj xwm hnyav (piv txwv li cov qib Prefabricated nrog cov weldability zoo (s255) Tshaj high- Cov hlau nkev.
Cov kab ke ua kom zoo nkauj (piv txwv li, Xaiv cov yeeb nkab loj dua): Xaiv cov qib kev txhawb nqa (S235 muaj kev sib tw tau zoo dua thaum khoov.
Kauj ruam 4: Tshuav Nyiaj Tau Txais Nyiaj & Ntev -} Term efficiency
Luv - xyoo / ib ntus dej num (piv txwv li, kev tsim kho cov chaw nyob ib ntus): S235 (pheej yig dua ntev ntev).
Ntev - lub sijhawm / piv txwv li cov nqi tsheb thauj mus los, thiab cov kab txuas ntxiv uas muaj peev xwm kho tau, thiab cov kab txuas ntxiv uas txo qis dua 10+ xyoo).
Kauj Ruam 5: Raws li cov qauv & ntawv pov thawj
Ua kom cov qib kawm tau raws kev lag luam / cheeb tsam cov cai:
European / ntiaj teb cov phiaj xwm: Ua raws li EN 10025 (S235 / S235 / S355) lossis ASTM (piv txwv li Astm A572 Qib 50).
High - kev pheej hmoo (og, roj av, xav tau cov qhab nia siab (API
Tiv tauj peb rau cov ntaub ntawv ntau ntxiv txog S235 lossis S355 steel thiab cov khoom siv xaiv, lossisThov cov lus haisRau cov nyiaj luv nqi ntxiv hnub no.
