An fi amfani da bututun ƙarfe mara ƙarfi don amfanin ginin jirgi don matakin 1&Level 2 bututun matsa lamba a cikin tsarin bututu, tukunyar jirgi da rukunin ginin jirgi mai zafi.
Model N0. na manyan karfe shambura: 320, 360, 410, 460, 490, da dai sauransu.
Girma:
| Nau'in bututun ƙarfe | Out diamita | Kaurin bango | ||
| Bututun da aka yi da sanyi | Girman Tube (mm) | Haƙuri (mm) | Girman Tube (mm) | Haƙuri (mm) |
| ：30-50 | ± 0.3 | ≤30 | ± 10% | |
| shafi na 50-219 | ± 0.8% | |||
| Bututu masu zafi | ：219 | ± 1.0% | ：20 | ± 10% |
Haɗin sinadarai:
| Samfuran bututun ƙarfe | Haɗin sinadarai (%) | ||||
| C | Si | Mn | P | S | |
| 320 | ≤0.16 | ≤0.35 | 0.40-0.70 | ≤0.035 | ≤0.035 |
| 360 | ≤0.17 | ≤0.35 | 0.40-0.80 | ≤0.035 | ≤0.035 |
| 410 | ≤0.21 | ≤0.35 | 0.40-1.20 | ≤0.035 | ≤0.035 |
| 460 | ≤0.22 | ≤0.35 | 0.80-1.40 | ≤0.035 | ≤0.030 |
| 490 | ≤0.23 | ≤0.35 | 0.80-1.50 | ≤0.035 | ≤0.030 |
Kaddarorin injina:
| Samfuran bututun ƙarfe | Ƙarfin ɗaure (MPa) | Ƙarfin Haɓaka (MPa) | Tsawaitawa (%) |
| 320 | 320-410 | ≥195 | ≥25 |
| 360 | 360-480 | ≥215 | ≥24 |
| 410 | 410-530 | ≥235 | ≥22 |
| 460 | 460-580 | ≥265 | ≥21 |
| 490 | 490-610 | ≥285 | ≥21 |
Lokacin aikawa: Fabrairu-10-2023