S355J2 ak S355K2 yo tou de se EN 10025-2 asye estriktirèl ak yon fòs sede minimòm de 355 MPa, men diferans kle yo chita nan severite enpak yo nan tanperati ki ba: S355J2 mande pou 27 Joules (J) nan -20 degre, pandan y ap S355K2 -20 degre mande pou 40J20. S355K2 pi di ak pi bon pou gwo enpak, anviwònman ki pi frèt.
S355J2 ak S355K2 plak asye konpozisyon chimik:
| Epesè (mm) | C | Mn | Si | P | S | N | Cu |
| anba 40 | 0.2 | 1.6 | 0.55 | 0.025 | 0.025 | - | 0.55 |
| >40 | 0.22 |
S355J2 ak S355K2 plak asye Pwopriyete mekanik:
| ReH Fòs Sede Minimòm (MPa) | R m (MPa) | ||||||||||||
| pou epesè nominal (mm) | pou epesè nominal (mm) | ||||||||||||
| <16 | =>16 | >40 | >63 | >80 | >100 | >150 | >200 | >250 | <3 | =>3 | >100 | >150 | >250 |
| Mwens pase oswa egal a 40 | Mwens pase oswa egal a 63 | Mwens pase oswa egal a 80 | Mwens pase oswa egal a 100 | Mwens pase oswa egal a 150 | Mwens pase oswa egal a 200 | Mwens pase oswa egal a 250 | Mwens pase oswa egal a 400 | Mwens pase oswa egal a 100 | Mwens pase oswa egal a 150 | Mwens pase oswa egal a 250 | Mwens pase oswa egal a 400 | ||
| 355 | 345 | 335 | 325 | 315 | 295 | 285 | 275 | 265 | 510-680 | 470-630 | 450-600 | 450-600 | 450-600 |
Sepandan, ki diferans ki genyen ant plak asye S355J2 ak S355K2? Li sitou nan tès enpak yo:
Senbòl J2 Charpy V-Notch Enpak Teste Longitudinal 27 Joul nan -20 ˚C anba epesè 150mm.
K2 senbòl Charpy V-Notch Enpak Teste Longitudinal 40 Joules nan -20 ˚C max 100mm epesè.
Plak asye S355K2 Charpy V-Notch Enpak Teste Longitudinal 40 Joul nan -20 ˚C, S355J2 plak asye Charpy V-Notch Enpak Teste Longitudinal 27 Joul nan -20 ˚C anba epesè 150mm. Plak asye S355K2 yo bon nan trè enpak anba pwojè kondisyon tanperati ki ba.
