S355J0 thiab S355J2 yog siab- lub zog cov qauv hlau raws li EN 10025-2, nrog rau qhov sib txawv tseem ceeb yog lawv qhov kev ntsuas qhov ntsuas kub ntawm qhov ntsuas kub: S355J0 xav tau 27 Joules ntawm 0 degree, thaum S355J2 xav tau tib yam 27 Joules ntawm qhov txias txias ntau, ob qho tib si txias dua -20 degrees. zoo sib xws yield zog (355 MPa) thiab tshuaj sau ntawv.
Qhov txawv tseem ceeb:
Impact Test Temperature:
S355J0:
Impact Test kub: 0 degree (32℃F).
Notch Toughness: Cov hlau raug sim rau nws lub zog cuam tshuam ntawm 0 degree. Qhov no txhais tau hais tias nws yog tsim los tswj lub toughness ntawm qhov kub thiab txias tsis ua nkig.
S355J2:
Impact Test kub: -20℃(-4℃F).
Notch Toughness: Cov hlau raug kuaj rau lub zog ntawm -20 degree. Qhov no ua rau S355J2 haum rau qhov chaw txias dua qhov twg cov ntaub ntawv yuav tsum khaws cov tawv tawv ntawm qhov kub thiab txias.
Application Suitability:
S355J0:
Haum rau kev siv cov txheej txheem dav dav uas qhov kub thiab txias nyob ib puag ncig 0℃lossis siab dua.
S355J2:
Zoo dua rau cov huab cua txias lossis cov ntawv thov uas qhov kub yuav poob mus rau -20℃lossis qis dua, xws li cov qauv sab nraum zoov, txuas hniav, lossis cov chaw tsim kho hauv qhov chaw txias.
chemical muaj pes tsawg leeg:
| Qib | C | Si | Mn | P | S | Cu | N |
| S355J2 | 0.24 max | 0.60 max | 1.70 max | 0.035 max | 0.035 max | 0.60 max | 0.014 max |
| S355J0 | 0.24 max | 0.60 max | 1.70 max | 0.040 max | 0.040 max | 0.60 max | 0.014 max |
mechanical zog:
| Qib | Yield zog ReH/(N/mm2) (t Tsawg dua los yog sib npaug rau 16mm) min | Tensile zog Rm / (N / mm2) (3mm Tsawg dua lossis sib npaug t Tsawg dua lossis sib npaug li 16mm) | Elongation A /% (3mm Tsawg dua lossis sib npaug t Tsawg dua lossis sib npaug li 40mm) min | Charpy V test | |
| Kub / degree | Lub zog cuam tshuam (Longitudinal) / J min | ||||
| S355J2 | 355 | 450-680 | 22 | -20 | 27 |
| S355J0 | 355 | 450-680 | 22 | 0 | 27 |
Charpy Impact Test:
S355J0: Yuav tsum muaj qhov cuam tshuam tsawg kawg nkaus ntawm 27 Joules ntawm 0 degree.
S355J2: Yuav tsum muaj qhov cuam tshuam tsawg kawg nkaus ntawm 27 Joules ntawm -20 degree.
Cov ntsiab lus:
S355J0 yog tsim rau cov ntawv thov uas qhov kub tsis poob qis dua 0 degree, ua rau nws zoo tagnrho rau cov huab cua me me.
S355J2 yog tsim los rau qhov chaw txias dua, nrog kev ua kom zoo dua ntawm qhov kub thiab txias li -20 degree.
