1. EN 10025: Cov Khoom Siv Txheej Txheem
TS EN 10025yog tus qauv European rau "Cov khoom kub dov ntawm cov qauv hlau". Nws txhais cov txheej txheem xa khoom rau ntau qib ntawm cov tsis yog- alloy thiab alloy structural steels.
Qhov tseem ceeb ntawm tus qauv no yog cov khoom siv qib, uas txhais cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab (xws li lub zog tawm los, lub zog tensile, thiab cuam tshuam toughness).
EN 10025 Qib siv rau cov kav dej thiab cov kav dej:
S235 JR(Sib npaug rau ASTM A36): Qhov dav dav tshaj plaws - lub hom phiaj steel qauv. Zoo weldability thiab formability.
S275JR / S275J0 / S275J2: Lub zog me ntsis siab dua S235.
S355JR / S355J0 / S355J2 / S355K2(Sib npaug rau ASTM A572 Gr. 50): Ib qho nrov heev -lub zog, qis- hlau alloy. Muab qhov zoo sib npaug ntawm lub zog, toughness, thiab weldability. "J0" thiab "J2" qhia tau hais tias muaj kev cuam tshuam zoo dua ntawm qhov kub thiab txias.
S450J0: Muab lub zog ntau dua.
Cov ntawv txuas ntxiv qhia txog kev cuam tshuam toughness:
JR: 27 Joules ntawm +20 degree
J027 joules ntawm 0 degree
J2: 27 Joules ntawm -20 degree
2. Cov Khoom Siv Hluav Taws Xob
Thaum koj xaj "carbon steel yeeb nkab" ua los ntawm EN 10025 steel, cov yeeb nkab yuav raug tsim raws li tus qauv cais uas tswj hwm nws qhov ntev, qhov ntev, thiab kev sim. Cov feem ntau yog:
A) EN 10219: Cold formed Welded Structural Hollow Sections
Qhov no yog tus qauv zoo tshaj plaws uas koj tau hais txog. Nws npog square, rectangular, thiab ncig hollow seem (tubes / kav dej) siv nyob rau hauv cov qauv siv, uas yogtxias - tsimlos ntawm sawb los yog ntawv thiab welded.
Ntsiab Lus:Cov khoom siv rau EN 10219 cov kav dej tuaj yeem tau txais los ntawm cov hlau uas tau teev tseg hauvTS EN 10219-2, uas ncaj qha references qib los ntawmTS EN 10025(zoo li S235, S275, S355).
Common npe:Ib lub yeeb nkab yuav raug xaiv raws li, piv txwv li,S355J2HRaws li EN 10219, qhov twg 'H' txhais tau hais tias ib seem hollow.
B) EN 10210: Kub Tiav Welded Structure Hollow Sections
Cov qauv no suav nrog square, rectangular, thiab ncig hollow seem uas yogkub- tsim. Cov txheej txheem no feem ntau ua rau muaj cov qauv nplej sib txawv thiab cov khoom siv sib txawv me ntsis piv rau cov khoom txias- ua ntu.
Ntsiab Lus:Cov khoom siv rau EN 10210 cov kav dej tau teev tseg hauvTS EN 10210-2, uas kuj hais txog qib los ntawmTS EN 10025.
Common npe:Zoo ib yam li EN 10219, piv txwv li,S355J2H.
C) EN 10217: Welded Steel Tubes rau lub hom phiaj siab
Cov qauv no yog rau cov kav dej uas npaj rau kev siv siab (piv txwv li, boilers, heat exchangers). Thaum nws tuaj yeem siv tsis yog - alloy steels, cov qhab nia feem ntau tau teev nyob rau hauv EN 10217 tus qauv nws tus kheej (xws li P235, P265), uas zoo ib yam hauv lub tswv yim tab sis haum rau kev tswj kom muaj zog.
Summary : Yuav Ua Li Cas Txhua Yam Ua Ke
| Cheebtsam | Txuj | Lub hom phiaj | Piv txwv |
|---|---|---|---|
| Khoom siv hlau | TS EN 10025 | Txhais lub hauv paus hlau chemistry thiab mechanical zog. | S355J2- Lub siab - lub zog steel nrog zoo cuam tshuam toughness ntawm -20℃. |
| Cov khoom siv yeeb nkab | TS EN 10219 | Txhais qhov ntev, kam rau ua, thiab kev sim rau qhov txias - tsim cov yeeb nkab. | A Circular Hollow Section (CHS)raug xaiv raws liS355J2H, ua los ntawm EN 10025 S355J2 steel. |
| Cov khoom siv yeeb nkab | TS EN 10210 | Txhais qhov ntev, kam rau ua, thiab kev sim rau qhov kub - tsim cov yeeb nkab. | A Rectangular Hollow Section (RHS)raug xaiv raws liS355J2H, ua los ntawm EN 10025 S355J2 steel. |
Cov Khoom Tseem Ceeb thiab Daim Ntawv Thov
Cov khoom ntawm cov yeeb nkab ua los ntawm EN 10025 Steel:
Siab zog - rau - Qhov hnyav piv:Tso cai rau cov qauv sib zog, muaj zog dua.
Zoo Weldability:Qhov tseem ceeb rau kev sib koom ua ke hauv kev tsim kho.
Zoo Machinability thiab Ductility.
Toughness:Cov qib nrog "J2" lossis "J0" cov lus xaus muab kev tiv thaiv zoo rau cov pob txha tawg hauv qhov chaw txias.
Cov ntawv thov raug:
Tsev thiab Kev Tsim Kho:Structures, kab teeb, trusses, thiab qhov chaw thav duab.
Industrial Structures:Txhawb thav duab rau factories, conveyor systems, thiab platforms.
Infrastructure:Choj, railings, kos npe gantry.
Agricultural thiab Mechanical Equipment.
General Fabrication:Ncej rau machinery, rooj tog, thiab tsheb.
Kev sib piv nrog ASTM (American) Cov Qauv
Rau kev siv, ntawm no yog qhov sib npaug ntxhib:
| Teb chaws Europe (EN) | Asmeskas (ASTM) | Siv dav |
|---|---|---|
| EN 10025 S355J{2}} EN 10219 | ASTM A500 Gr. C | Cov yeeb nkab (Cold-Formed) |
| EN 10025 S355J{2}} EN 10210 | ASTM A501 Cov Lus Qhia Tshwj Xeeb | Cov yeeb nkab (Kub-Formed) |
| EN 10025 S235JR | ASTM A36 | General Structure Plate |
Xaus
Thaum ib tug neeg nug txog "EN10025 Carbon Steel Pipe," lawv feem ntau yuav xa mus rau astructural hollow seem (pipe los yog raj)tsim raws liTS EN 10219los yogTS EN 10210, qhov twg cov khoom siv hauv paus yog carbon lossis micro- alloyed steel qib tau teev tseg hauvTS EN 10025txheem, xws liS355J2. Nco ntsoov xyuas kom koj qhia ob qho tib sikhoom txheem(rau cov kav dej) thiab covqib khoom siv(rau cov hlau) kom tau txais cov khoom tsim nyog rau koj qhov project.
