Ob qho tib si St52 thiab S355 yog hollow raj cov khoom rau cov qauv, tab sis lawv yog cov qauv sib txawv: ST52 yog muab tau los ntawm cov neeg European thiab S35J2 lossis S355B). Muaj qhov sib txawv tseem ceeb ntawm ob qho ntawm lub zog, tshuaj lom neeg muaj tshuaj lom neeg thiab kev thov kev thov. Cov hauv qab no yog qhov sib piv tseem ceeb:
1. Cov Qauv thiab Cov Khoom Siv Khoom
| phiaj qhia ntawv | 2 hollow seem | S355 hollow seem |
|---|---|---|
| Txheem | Din | En |
| Paib lub zog | Ntau dua los yog sib npaug rau 355mpa (tuab tsawg dua lossis sib npaug nrog 16 hli), txo qis nrog kev nce tuab | Ntau dua los yog sib npaug rau 355mpa (nominal tus nqi), siab dua ruaj khov |
| Lub zog tensile | 490-630MPA | 470-630MPA (zoo li Q355B) |
| Tshuaj Muaj Tshuaj | Cov ntsiab lus carbon tsawg dua los yog sib npaug rau 0.20%, phosphorus thiab leej faj impurities tsis muaj tshuaj tswj | Kev Ua Kom Zoo Alloying Ntsiab (piv txwv li cov ntsiab lus manganese ntau dua) thiab kev tswj tus neeg tsis ntseeg |
2. Sib txawv ntawm kev ua tau thiab ntawv thov
- Tsawg qhov kub kub nyuaj:
St52: Kev ua tau zoo heev, tab sis qhov ntsuas kub tsawg (xws li 0℃cuam tshuam loj dua li ntawm 23J) tsis muaj zog tshaj S355, haum rau ib puag ncig kub li qub.
S355: Qhov kub zoo dua kub nyuaj (xws li S355j2), haum rau cov qauv nyob rau hauv cov chaw txias, thiab muaj zog cuam tshuam.
- Vuam thiab kev ua:
St52: Zoo heev Veldability, tsis tas yuav muaj rau cov txheej txheem preheating nyuaj, haum rau cov qauv kev tsim dav.
S355: Zoo dua vuam kev yoog tau zoo, tab sis kub tswj tau yuav tsum tau tiv thaiv kev tawg, haum rau high-precision v hlau scenarios.
- Daim Ntawv Thov Qhia:
St52: Feem ntau yog siv rau cov txheej txheem nruab nrab, xws li cov nkhaus tshuab pa, tsheb chassis lossis cov raj xa hluav taws xob.
S355: Nyiam rau lub nra hnyav lossis cov khoom siv hluav taws xob zoo xws li cov vaj tse siab, txuas hniav, cua tshuab yees.
3. Cov ntsiab lus thiab cov lus qhia
Tsom rau xaiv:
Cov kev yuav tsum tau ua: S355 yog nyiam rau cov thauj khoom hnyav lossis qhov chaw kub tsawg (nqi zog-ua tau zoo dua li cov khoom siv zog ntau dua).
Tus nqi tau zoo: St52 yog pheej yig dua, tab sis S355 muaj lub neej ntev dua nyob rau hauv cov xwm txheej hnyav
