S355JR thiab S355JT2 yog ob tus qauv siv dav dav siv nyob rau hauv EN 10025-2 MPA, zoo kawg weldability, thiab kev muaj txiaj ntsig zoo.
Cov qib steel no feem ntau siv hauv cov choj, vaj tse, kev tsim kho, muab cov kev tsim kho dav dav, muab cov qauv kev tsim kho dav dav, muab cov qauv kev tsim kho dav dav, muab kev txhim khu kev qha cov qauv kev tsim tawm nyob rau hauv ntau lub nra.
Txawm hais tias ob qib kawm tau zoo heev hauv kev sib xyaw thiab cov neeg kho tshuab, lub ntsiab sib txawv nyob hauv qhov kev sim tawv me me, qhia los ntawm "J2" Bestixes. Qhov sib txawv no ncaj qha cuam tshuam lawv cov kev haum rau cov chaw kub ib puag ncig.
Tshuaj lom neeg sib xyaw tshuaj sib piv (%)
| Teem nqi | C (max) | Si (max) | Mn (max) | P (max) | S (max) | Cu (Max) | N (max) |
|---|---|---|---|---|---|---|---|
| S355jr | 0.27 | 0.60 | 1.70 | 0.045 | 0.045 | 0.60 | 0.014 |
| S355J2 | 0.24 | 0.60 | 1.70 | 0.035 | 0.035 | 0.60 | 0.014 |
Cov Khoom Siv Neeg Kho Tshuab Sib Xws
| Teem nqi | Pepr Profrase Refle (MPa, t tsawg dua los yog sib npaug rau 16 hli) | Tensile Lub Zog RM (Mpa, 3-16mm) | Elongation ib% (3-40 hli) | Charpy v - next ltch xeem | Kev cuam tshuam lub zog (j, ntev ntev) | Sim ntsuas kub (degree) |
|---|---|---|---|---|---|---|
| S355jr | 355 | 450–680 | 22 | 27 | 27 | +20 |
| S355J2 | 355 | 450–680 | 22 | 27 | 27 | -20 |
Cov Khoom Siv
Qhov tseem ceeb tshaj plaws ntawm S355jr thiab S355j2 dag nyob rau hauv qhov qis - kev cuam tshuam kub:
S3555jr ({{{{{}}} index cuam tshuam xeem): haum rau feem ntau cov ntawv thov nyob rau hauv cov kub ib txwm muaj.
S3555j2 (- 20℃cuam tshuam kev sib tw hauv cov chaw txias, ua rau cov huab cua txias lossis sab nraum zoov uas tau tawg tuaj yeem yog kev txhawj xeeb.
Hauv kev xyaum, xaiv S355j2 dhau s355jr ensures kev nyab xeeb thiab tawv nqaij tau raug rau hauv {}} pa taws huab cua lossis huab cua nyob hauv nroog.
