Pipa baja seamless pikeun pamakéan wangunan kapal utamana dipaké pikeun Level 1 & Level 2 pipe tekanan dina sistem piping, alat keur ngagolakkeun jeung Unit super-dipanaskeun of shipbuilding.
Model N0. tina tabung baja utama: 320, 360, 410, 460, 490, jsb.
Ukuran:
| Jenis tabung baja | Diaméterna kaluar | Kandel témbok | ||
| tabung tiis-digulung | Ukuran pipa (mm) | Kasabaran (mm) | Ukuran pipa (mm) | Kasabaran (mm) |
| > 30-50 | ± 0,3 | ≤30 | ± 10% | |
| > 50-219 | ± 0,8% | |||
| Panas-digulung tabung | > 219 | ± 1,0% | > 20 | ± 10% |
Komposisi kimia:
| Model tabung baja | Komposisi kimiawi (%) | ||||
| 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 |
Sipat mékanis:
| Model tabung baja | Kakuatan tegangan (MPa) | kakuatan ngahasilkeun (MPa) | Elongation (%) |
| 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 |
waktos pos: Feb-10-2023