Txheej txheem cej luam
S355J2Hyog qib siab -zoo, tsis yog- alloy structural steel qib txhais los ntawm European tus qauvTS EN 10210-1. Qhov "H" qhia tias cov khoom yog aqhov seem(cov yeeb nkab lossis cov qauv hollow seem). Nws yog nto moo rau nws zoo heev ua ke ntawm lub zog, toughness, thiab weldability, ua rau nws yog ib tug premier kev xaiv rau cov ntaub ntawv tseem ceeb.
Kev tawg ntawm lub npe: S355J2H
S: Sawv rauKev tsim qauvhlau.
355: Qhia covyam tsawg kawg nkaus yield zog(ReH) ntawm 355 MPa (los yog N / mm²) rau thicknesses Tsawg dua los yog sib npaug rau 16 hli. Lub zog tawm los txo me ntsis nrog nce cov khoom thickness.
J2: Denotes lubcuam tshuam toughnessntawm -20 degree.
J: 27 Joules (tsawg kawg cuam tshuam lub zog)
2: Kev ntsuas kub yog -20 degree
H: Qhia tias daim ntawv khoom yog aNtug Hollow(as opposed to "W" rau dav flange beams, thiab lwm yam., nyob rau hauv lwm yam qauv).
Cov khoom tseem ceeb
Cov khoom yog teev nyob rau hauvTS EN 10210-1(Technical shipping tej yam kev mob rau kub- tiav hollow seem) thiabTS EN 10210-2(Txoj kev xa khoom rau cov uas tsis yog- alloy thiab nplua nplej hlau).
Mechanical Properties (Ib yam rau thickness Tsawg dua los yog sib npaug rau 16mm):
Yield zog (ReH):min.355 MPa rau
Tensile zog (Rm):470 - 630 MPa
Elongation (A):min . 22% (qhia tau zoo ductility)
Impact Zog (KV):min . 27 J ntawm -20 degree
Chemical Composition (Kwv yees% los ntawm qhov hnyav):
Cov muaj pes tsawg leeg yog ua tib zoo tswj kom ua tau raws li qhov xav tau cov khoom siv kho tshuab thiab weldability.
Cov pa roj carbon (C):Tsawg dua los yog sib npaug rau 0.22% (Cov pa roj carbon tsawg rau qhov zoo weldability)
Manganese (Mn):Tsawg dua lossis sib npaug li 1.60%
Silicon (Si):Tsawg dua lossis sib npaug li 0.55%
Phosphorus (P):Tsawg dua lossis sib npaug li 0.035% (Tsawg rau kev txhim kho toughness)
Sulfur (S):Tsawg dua los yog sib npaug rau 0.035% (Tsawg rau qhov zoo dua weldability thiab formability)
Nco tseg:Nws kuj muaj micro-alloying cov ntsiab lus xws li Niobium (Nb) thiab Vanadium (V) rau cov nplej ua kom zoo thiab lub zog.
Kev tsim khoom
S355J2H kav yog feem ntaukub -ua tiav.
Kub-Tiav lawm (EN 10210):Cov hlau yog tsim thiab zoo li tus ntawm qhov kub thiab txias (saum toj no lub recrystallization kub). Cov txheej txheem no ua rau cov yeeb nkab nrog:
Uniform microstructure thiab cov khoom.
Zoo heev dimensional stability.
Zoo nto tiav.
Rounded ces kaum ntawm lub hollow seem (RHS).
Feem ntau superior toughness piv rau txias -them seem.
Qhov zoo thiab yam ntxwv
Siab zog - rau - Qhov hnyav piv:Tso cai rau cov qauv sib dua, zoo nkauj dua yam tsis muaj kev txi lub zog.
Zoo heev Toughness:Qhov ntsuas "J2" ua kom ntseeg tau tias nws tuaj yeem tiv taus qhov hnyav thiab qhov cuam tshuam, txawm tias nyob hauv qhov chaw txias mus txog -20 degree.
Zoo Weldability:Kev tswj hwm cov ntsiab lus qis thiab CEV ua rau nws tsim nyog rau txhua qhov txheej txheem vuam yam tsis muaj ua ntej - cua sov hauv feem ntau (ib txwm tshawb xyuas cov txheej txheem vuam tshwj xeeb).
Kev ua haujlwm huab cua txias:Zoo tagnrho rau kev tsim kho nyob rau hauv temperate thiab txias huab cua.
Durability thiab Longevity:Thaum muaj kev tiv thaiv zoo (piv txwv li, los ntawm kev pleev xim lossis galvanizing), nws muaj lub neej ua haujlwm ntev.
Cov ntawv thov siv
S355J2H hollow seem yog siv nyob rau hauv ib tug ntau yam ntawm kev thov cov qauv siv:
Tsev thiab Kev Tsim Kho:Cov kab, kab teeb, trusses, thiab qhov chaw thav duab hauv cov tsev lag luam, cov chaw ua lag luam, thiab chaw ntau pob.
Cov choj:Raws li cov tswv cuab tseem ceeb rau cov neeg taug kev txuas hniav, txoj kev txuas hniav, thiab cov qauv kev txhawb nqa.
Heavy Equipment & Machinery:Raws li chassis, booms, thiab thav duab rau cranes, excavators, thiab kev ua liaj ua teb machinery.
Offshore thiab Marine Structures:Txhawb nqa cov qauv, jetties, thiab platforms (qhov twg tau teev tseg thiab muaj kev tiv thaiv corrosion tsim nyog).
Architectural Structures:Siv nyob rau hauv niaj hnub architectural designs rau nws huv si, aesthetic tsos thaum siv raws li raug steelwork.
Khoom siv:Conveyor system txhawb nqa thiab lwm yam hnyav - lub luag haujlwm.
Sib piv nrog Lwm Cov Qib Siab
Nws yog ib qho tseem ceeb kom paub qhov txawv S355J2H los ntawm lwm cov qib zoo sib xws - suab nrov.
| Feature | S355J2H(EN 10210) | S355J2H(rau EN 10219 - Txias- tsim) | S355J0H | ASTM A500 Qib C(US sib npaug) |
|---|---|---|---|---|
| Txuj | TS EN 10210 | TS EN 10219 | TS EN 10210 | ASTM A500 1 |
| Txheej txheem | Kub- tiav lawm | Txias- tsim | Kub- tiav lawm | Txias- tsim |
| Yield zog | 355 MPa (tsawg dua lossis sib npaug li 16mm) | 355 MPa (tsawg dua lossis sib npaug li 16mm) | 355 MPa (tsawg dua lossis sib npaug li 16mm) | 345 MPa (Ntau dua lossis sib npaug rau 50ksi) |
| Toughness | 27J @ -20 degree | 27J @ -20 degree | 27j:0 qib | Feem ntau tsis tau teev tseg |
| Qhov txawv tseem ceeb | Superior toughness & zog vim kub-ua tiav. | Cov khoom zoo, tab sis cov ces kaum ua haujlwm - tawv. | Tsis haum rau -20℃kev pabcuam. | Ib qho dav dav - lub hom phiaj ntawm cov yeeb nkab, tsis tshua muaj zog ntawm kev sib tw. |
Lus Cim rau S355J2H vs. S355J0H:Qhov sib txawv tseem ceeb yog qhov ntsuas qhov ntsuas kub. J2 raug kuaj ntawm -20 degree, thaum J0 raug kuaj ntawm 0 degree. Yog li ntawd,S355J2H yog qhov kev xaiv zoo tshaj plaws rau cov qauv raug rau cov huab cua txias.
Cov ntsiab lus
S355J2H Carbon Steel Yeeb Nkabyog tus hwm-qib, kub- tiav cov qauv hollow seem. Nws cov yam ntxwv txhais yog nwsYam tsawg kawg nkaus 355 MPa yield zogthiab nwstxheeb xyuas qhov toughness ntawm -20 degree. Qhov kev sib xyaw ua ke no ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev nyab xeeb- tseem ceeb, thauj khoom- cov kabmob uas muaj kev ntseeg siab nyob rau hauv dynamic lossis txias - qhov kub thiab txias yog qhov tseem ceeb. Thaum muab cov khoom siv no, xyuas kom daim ntawv pov thawj zeb lees paub tias ua rawsEN 10210-1/2.
