Q235 po'lati 4 ta sifatli toifaga bo'lingan: Q235A, Q235B, Q235C va Q235D bo'lgan Yaponiya po'lat SS400 markasiga teng.
Q235 Chelik mexanik xususiyatlari
| Sinf | Hosildorlik kuchi | Mustahkamlik chegarasi | Uzayish% |
| Q235 po'latdir | 235 Mpa | 370-500 Mpa | 26 |
| Sinov namunasi: 16 mm po'lat novda, (Mpa=N / mm2) | |||
1 MPa=1 N / mm2
| Hosildorlik kuchi (MPa, ≥); Qalinligi yoki Dia. (d) mm | Qarshilik kuchi (MPa) | ||||||
| Chelik navi | Sifat | d≤16 | 16< d=""> | 40< d=""> | 100<> | 150< d=""> | d≤100 |
| Q235 | Q235A | 235 | 225 | 215 | 195 | 185 | 370-500 |
| Q235B | |||||||
| Q235C | |||||||
| Q235D | |||||||
Minimal uzayish
| Uzayish (≥%); Qalinligi yoki Dia. (d) mm | |||||
| Chelik navi | d≤40 | 40< d=""> | 60< d=""> | 100<> | 150< d=""> |
| Q235 | 26 | 25 | 24 | 22 | 21 |
Minimal Charpy ta'siri
| Charpy zarbasi (V chizig'i) | |||
| Chelik navi | Sifat | Harorat. ℃ | Ta'sir energiyasi (bo'ylama, ≥ J) |
| Q235 | Q235A | – | – |
| Q235B | +20 | 27 | |
| Q235C | 0 | ||
| Q235D | -20 | ||
