GB/T8162walang tahi na bakal na tubo
Application: angkop para sa pangkalahatang istraktura, walang tahi na bakal na tubo para sa mekanikal na istraktura.
Pangunahing ginawang steel pipe grade:10,20,35,45,16Mn,12CrMo,15CrMo,12Cr1MoV.
Mga mekanikal na katangian
| Pamantayan | Grado ng bakal | Lakas ng makunat (MPa) | Lakas ng ani (MPa) | Pagpahaba (%) |
| GB/T8162 | 10 | ≥ 335 | ≥ 205 | ≥ 24 |
| 20 | ≥ 390 | ≥ 245 | ≥ 20 | |
| 35 | ≥ 510 | ≥ 305 | ≥ 17 | |
| 45 | ≥ 590 | ≥ 335 | ≥ 14 | |
| 16Mn | ≥ 490 | ≥ 325 | ≥ 21 | |
| 12CrMo | ≥ 410 | ≥ 265 | ≥ 24 | |
| 15CrMo | ≥ 440 | ≥ 295 | ≥ 22 | |
| 12Cr1MoV | ≥ 490 | ≥ 245 | ≥ 22 |
Mga komposisyon ng kemikal
| Pamantayan | Grado ng bakal | Komposisyon ng kemikal | |||||||
| C | Si | Mn | P, S | Cu | Ni | Mo | Cr | ||
| GB/T8162 | 10 | 0.07～0.14 | 0.17～0.37 | 0.35～0.65 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.15 |
| 20 | 0.17～0.24 | 0.17～0.37 | 0.35～0.65 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.25 | |
| 35 | 0.32～0.40 | 0.17～0.37 | 0.50～0.80 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.25 | |
| 45 | 0.42～0.50 | 0.17～0.37 | 0.50～0.80 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.25 | |
| 16Mn | 0.12～0.20 | 0.20～0.55 | 1.20～1.60 | ≤0.035 | ≤0.25 | ≤0.25 | / | ≤0.25 | |
| 12CrMo | 0.08～0.15 | 0.17～0.37 | 0.40～0.70 | ≤0.035 | ≤0.25 | ≤0.30 | 0.40～0.55 | 0.40～0.70 | |
| 15CrMo | 0.12～0.18 | 0.17～0.37 | 0.40～0.70 | ≤0.035 | ≤0.25 | ≤0.30 | 0.40～0.55 | 0.80～1.10 | |
| 12Cr1MoV | 0.08～0.15 | 0.17～0.37 | 0.40～0.70 | ≤0.035 | ≤0.25 | ≤0.30 | 0.25～0.35 | 0.90～1.20 | |
Oras ng post: Dis-08-2020