Igiciro Cyinshi Ubushinwa Bidafite Umuyoboro wa Steel - Umuyoboro wa Carbone Utagira Umuyoboro - Huaxin
Igiciro Cyinshi Ubushinwa Bidafite Umuyoboro Wumuringa - Umuyoboro wa Carbone Utagira Umuyoboro Umuyoboro - Huaxin Ibisobanuro:
Ibisobanuro ku musaruro:
Bisanzwe ： GB / T8162-2008
Icyiciro ： 20，45，20Mn ， Q345B ， Q345C, Q345D, 45Mn2, 27SiMn
Gutanga Kode rolling Kuzunguruka bishyushye
Ingano Ingano ： OD 73MM-630MM, Ubunini 4MM-35MM
Kwihanganirana ： Ukurikije GB / T8162-2008
Uburebure ： Nkibisabwa
MTC ： GB / T19001-2008
Ibigize imiti:
| Icyiciro | C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | N | Mo | Als |
| 20 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.030 | / | / | / | ≤0.25 | ≤0.30 | ≤0.25 | / | / | / |
| 45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.030 | / | / | / | ≤0.25 | ≤0.30 | ≤0.25 | / | / | / |
| 20Mn | 0.17-0.23 | 0.07-0.37 | 0.70-1.00 | ≤0.035 | ≤0.030 | / | / | / | ≤0.25 | ≤0.30 | ≤0.25 | / | / | / |
| Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | .070.07 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.012 | ≤0.10 | / |
| Q345C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.030 | .070.07 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.012 | ≤0.10 | ≥0.015 |
| Q345D | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.012 | ≤0.10 | ≥0.015 |
| 45Mn2 | 0.42-0.49 | 0.17-0.37 | 1.40-1.80 | ≤0.035 | ≤0.035 | / | / | / | ≤0.25 | / | ≤0.25 | / | ≤0.25 | / |
| 27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | ≤0.035 | ≤0.035 | / | / | / | ≤0.30 | / | ≤0.20 | / | ≤0.30 | / |
Umutungo wa mashini:
| Icyiciro | Imbaraga min Mpa | Imbaraga | Kurambura | Ikizamini Ingaruka | |||
| T muri mm | Mpa | ||||||
| ≤16 | ＞ 16 ≤30 | ＞ 30 | ℃ | Ingaruka / J. | |||
| ≥ | |||||||
| 20 | 245 | 235 | 225 | ≥410 | ≥20 | - | - |
| 45 | 335 | 325 | 315 | 90590 | ≥14 | - | - |
| 20Mn | 275 | 265 | 255 | 50450 | ≥20 | - | - |
| Q345B | 345 | 325 | 295 | 470-630 | ≥20 | 20 | 34 |
| Q345C | 345 | 325 | 295 | 470-630 | ≥21 | 0 | 34 |
| Q345D | 345 | 325 | 295 | 470-630 | ≥21 | -20 | 34 |
| 45Mn2 | 885 | 35735 | ≥10 | - | - | ||
| 27SiMn | 980 | 35835 | ≥12 | - | - | ||
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