Kev qhia tshwj xeeb: EN10219-1 S355JOH Kauv Submerged Arc Welded Yeeb Nkab
Cov ntaub ntawv no qhia txog cov lus qhia tshwj xeeb rau qib siab dua - qib zog cov yeeb nkab, uas muaj cov khoom siv dav dav tshaj plaws - cov khoom siv hlau rau cov ntawv thov.
1. Kev Tswj Xyuas Txheej Txheem: EN 10219-1
Full Title:*Cold form welded structural hollow sections of non-alloy and fine grain steels - Part 1: Technical delivery condition.*
Scope:Cov txheej txheem European qhia txog qhov yuav tsum tau ua rau txias- tsim welded structural hollow seem siv nyob rau hauv load-cov kabmob.
2. Khoom Qib: S355JOH
Qhov no yog qhov siab -lub zog, nplua- cov qauv steel qib ib EN 10025-2, qhov twg cov lej thiab cov ntawv muaj lub ntsiab lus tshwj xeeb.
| Tsab ntawv/Ntau | Lub ntsiab lus | Specification |
|---|---|---|
| S | Cov qauv hlau | Rau kev tsim kho. |
| 355 | Yam tsawg kawg nkaus Yield Strength | Qhov tsawg kawg nkaus yield zog (ReH) yog355 MPa rau. Qhov no tseem ceeb dua qib S235 thiab S275. |
| J | Impact Toughness | Guaranteed Charpy V-qhov cuam tshuam lub zog. |
| O | Impact Test Temperature | Impact test ua ntawm0 degree. |
| H | Hollow Sections | Certified rau manufacturing hollow seem. |
Cov Khoom Tseem Ceeb Cov Khoom Summary:
Siab zog:355 MPa yam tsawg kawg nkaus lub zog muaj peev xwm muab kwv yees li 30% siab dua load peev tshaj S275 thiab 51% siab dua S235, ua kom muaj txiaj ntsig zoo thiab tsim qauv hnyav dua.
Zoo Toughness:Tuav qhov zoo ntawm qhov toughness ntawm 0 degree, haum rau feem ntau cov qauv siv nyob rau hauv temperate climates.
Fine Grain & Weldability:Lub npe "J" txhais tau hais tias cov qauv zoo ua tiav los ntawm microalloying (piv txwv li, nrog Niobium), uas txhim kho lub zog thiab weldability.
3. Txheej txheem tsim khoom: Kauv Submerged Arc Vuam (SSAW)
| Yam | Kev piav qhia |
|---|---|
| Txoj kev tsim | Txias kauv txoj kev ntawm steel sawb. |
| Vuam txoj kev | Submerged Arc Vuam (SAW) rau siab -zoo, siab- kev ncaj ncees welds. |
| Qhov Zoo Tshaj Plaws | Loj txoj kab uas hla muaj peev xwm, ntau lawm efficiency, nqi -effectiveness rau siab -lub zog tuab-walled kav. |
| Tej kev siv | Heavy-cov haujlwm ua haujlwm: siab- nce lub tsev kab, choj piers, offshore roj & roj platforms, hnyav industrial cog ncej, loj cua turbine yees, chaw nres nkoj machinery txhawb nqa. |
4. Cov ntaub ntawv sib piv tseem ceeb: S355JOH vs. Qib qis
Cov lus hauv qab no piv S355JOH nrog rau S275 qib, qhia txog lub zog thiab qhov sib txawv ntawm daim ntawv thov.
| Cov khoom / yam ntxwv | S355 YOG(Qib no) | S275 YOG | S275J2H |
|---|---|---|---|
| Yam tsawg kawg Yield Strength (ReH) | 355 MPa rau | 275 MPa rau | 275 MPa rau |
| Hom Tensile Zog (Rm) | 470 - 630 MPa | 410 - 560 MPa | 410 - 560 MPa |
| Impact Test Temperature | 0 degree | 0 degree | -20 degree |
| Tus qauv Efficiency | Siab tshaj- Tso cai rau kev txuag qhov hnyav tshaj plaws lossis muaj peev xwm thauj khoom siab tshaj plaws. | Nruab nrab - Lub zog zoo-rau- qhov hnyav piv. | Nruab nrab - Lub zog zoo, nrog rau kev tsom mus rau qis -temp toughness. |
| Qhov Tseem Ceeb Daim Ntawv Thov Kev Pom Zoo | Hnyav loaded qauvqhov uas txo qhov hnyav lossis hla- ntu yog qhov tseem ceeb (piv txwv li, qhov ntev ntev, kab siab). | Cov qauv dav dav xav tau lub zog ntau dua S235 tab sis tsis yog tus nqi ntawm S355. | Cov qauv hauv cov huab cua txias xav tau S275 lub zog. |
| Tus nqi txheeb ze | Siab dua- Vim yog cov ntsiab lus alloying thiab muaj zog dua. | Nruab nrab | Nruab nrab mus rau siab (vim yuav tsum tau toughness) |
5. Cov Lus Qhia Tseem Ceeb ntawm S355 Qib
Sub- Qib:Lub npe "JOH" yog ib qho, tab sis S355 kuj tuaj nyob rau hauv lwm cov qib toughness (xws li,S355J2Hrau -20℃cuam tshuam,S355K2Hrau kev cuam tshuam ntau zog ntawm -20 degree). Qhov kev xaiv nyob ntawm qhov tshwj xeeb tsim kub thiab kev nyab xeeb ntawm qhov project.
Weldability:Thaum weldable, S355 yuav xav tau cov txheej txheem vuam tshwj xeeb (xaiv cov hlau muab tub lim, ua ntej / tom qab- tswj cov cua sov) piv rau S235 / S275 kom phim lub hauv paus hlau lub zog thiab lub zog ntawm thaj tsam weld.
6. Cov ntsiab lus
IbEN10219-1 S355JOH Kauv Submerged Arc Welded Yeeb Nkabyog asiab -kev ua tau zoo structural hollow seemcharacterized los ntawm:
Hwm Lub Zog:Muab ibYam tsawg kawg nkaus tawm lub zog ntawm 355 MPa, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau siab - kev siv kev ntxhov siab.
Balanced Properties:Ua ke siab zog nrog zoo toughness ntawm 0 degree.
Efficient Design:Pab kom txuag tau cov khoom tseem ceeb thiab ntau dua, architecturally txaus siab rau cov qauv tsim.
Robust Manufacturing:Cov txheej txheem SSAW yog qhov zoo- haum rau kev tsim cov tuab- phab ntsa, loj - kab uas hla feem ntau xav tau rau cov ntawv thov qib S355.
Kev siv thawj zaug:Lub workhorse khoom rautseem ceeb, hnyav loaded steel qauvnyob rau hauv kev tsim kho niaj hnub thiab kev lag luam hnyav, qhov kev ua kom zoo zog - rau - qhov hnyav piv yog qhov tseem ceeb.
