Imiterere Umuyoboro udafite ibyuma Umuyoboro wohereza hanze
ibisobanuro ku bicuruzwa
Igipimo:GB / T8162-2008
Icyiciro:20, 45, 20Mn, Q345B, Q345C, Q345D, 45Mn2, 27SiMn
Gutanga Kode:Kuzunguruka bishyushye
Ingano Ingano:OD 73MM-630MM, Ubunini 4MM-35MM
Ubworoherane:Ukurikije GB / T8162-2008
Uburebure:Nkibisabwa
MTC:GB / T19001-2008
ibicuruzwa
Ifumbire mvaruganda:
| Icyiciro | C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu |
| 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 |
| Q345C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.030 | .070.07 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
| Q345D | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
| 45Mn2 | 0.42-0.49 | 0.17-0.37 | 1.40-1.80 | ≤0.035 | ≤0.035 | / | / | / | ≤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 |
Ibikoresho bya mashini:
| Icyiciro | Ibigize imiti | Imbaragamin 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 | ≤0.012 | ≤0.10 | / | / | 345 | 325 | 295 | 470-630 | ≥20 | 20 | 34 |
| Q345C | ≤0.012 | ≤0.10 | / | ≥0.015 | 345 | 325 | 295 | 470-630 | ≥21 | 0 | 34 |
| Q345D | ≤0.012 | ≤0.10 | / | ≥0.015 | 345 | 325 | 295 | 470-630 | ≥21 | -20 | 34 |
| 45Mn2 | / | ≤0.25 | / | / | 885 | 35735 | ≥10 | - | - | ||
| 27SiMn | / | ≤0.30 | / | / | 980 | 35835 | ≥12 | - | - | ||
Kwerekana umusaruro:
Ibyiza:
Ibikoresho bibisi biva mubikorwa byo hejuru byizeza ubuziranenge.
Ikoranabuhanga ryukuri ryemeza ingano nyayo yo kwihanganira.
Itsinda ryiza ryo kugurisha riguha icyifuzo gikwiye.
Itsinda nyuma yo kugurisha ritanga inkunga yo gutanga ibicuruzwa.
Kugenzura ubuziranenge:
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