Q345B steel vs Q355B steel
Tshuaj muaj pes tsawg leeg (%) piv ntawm Q345B thiab Q355B:
| Khoom siv | C max. | Si max. | Mn max. | P max. | S max. | Cr max. | Nim max. | Cu max. | N max. | Nb max. | V max. | Tau max. | Mas max. |
| Q345B | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.30 | 0.50 | 0.30 | 0.012 | 0.07 | 0.15 | 0.20 | 0.10 |
| Q355B | 0.20 | 0.55 | 1.60 | 0.030 | 0.030 | 0.30 | 0.30 | 0.40 | 0.012 | - | - | - | - |
Cov khoom sib piv ntawm Q345B thiab Q355B steel:
| Qib | Yield zog MPa nyob rau hauv txawv thickness mm | ||||||||
| Tsawg dua los yog sib npaug li 16 | 16-40 | 40-63 | 63-80 | 80-100 | 100-150 | 150-200 | 200-250 | 250-400 | |
| Q345B | Ntau dua lossis sib npaug rau 345 | Ntau dua lossis sib npaug rau 335 | Ntau dua lossis sib npaug rau 325 | Ntau dua lossis sib npaug rau 315 | Ntau dua lossis sib npaug rau 305 | Ntau dua lossis sib npaug li 285 | Ntau dua lossis sib npaug li 275 | Ntau dua lossis sib npaug rau 265 | - |
| Q355B | Ntau dua lossis sib npaug rau 355 | Ntau dua lossis sib npaug rau 345 | Ntau dua lossis sib npaug rau 335 | Ntau dua lossis sib npaug rau 325 | Ntau dua lossis sib npaug rau 315 | Ntau dua lossis sib npaug li 295 | Ntau dua lossis sib npaug li 285 | Ntau dua lossis sib npaug li 275 | - |
| Qib | Tensile zog MPa nyob rau hauv txawv thickness mm | ||||||
| Tsawg dua los yog sib npaug li 40 | 40-63 | 63-80 | 80-100 | 100-150 | 150-250 | 250-400 | |
| Q345B | 470-630 | 470-630 | 470-630 | 470-630 | 450-600 | 450-600 | - |
| Q355B | 470-630 | 470-630 | 470-630 | 470-630 | 450-600 | 450-600 | - |
GNEE Group tau txais cov neeg tuaj xyuas
Yog tias koj muaj kev xav tau ntau ntxiv thiab cov lus nug txog steel, thov hu rau peb!