ASTM AS274 WPB & WPB & WPC Pipes pẹlu awọn igungba, tee, awọn alaragba
Akopọ kemikali ti ASTM A234 WPB & WPC
| Ida | Akoonu,% | |
| ASTM A234 WPB | ASTM A234 WPC | |
| Erogba [c] | ≤0.30 | ≤0.35 |
| Manganese [mn] | 0.29-1.06 | 0.29-1.06 |
| Irawọ owurọ [p] | ≤0.050 | ≤0.050 |
| Elfur [s] | ≤0.058 | ≤0.058 |
| Silicon [si] | ≥0.10 | ≥0.10 |
| Chromium [Kr] | ≤0.40 | ≤0.40 |
| Molybandem [Mo] | ≤0.15 | ≤0.15 |
| Nickel [ni] | ≤0.40 | ≤0.40 |
| Ejò [cu] | ≤0.40 | ≤0.40 |
| Pupadium [V] | ≤0.08 | ≤0.08 |
* Awọn aṣọ erogba ti o jẹ deede [Che & C + MN / 6 + (Kla + Mo + Ki + Cu) / 15] yoo jẹ ti o tobi ju 0.50 ati yoo royin lori MTC.
Awọn ohun-elo ẹrọ ti ASTM ASTM kan 1635 & WPC
| ASTM AS244 | Agbara Tensele, min. | Ikoro imu, min. | Elongation%, min | |||
| ksi | Mppa | ksi | Mppa | Igba pipẹ | Ila-ọwọ | |
| Wpb | 60 | 415 | 35 | 240 | 22 | 14 |
| Wpc | 70 | 485 | 40 | 275 | 22 | 14 |
* 1. WPB ati awọn ohun elo paiti wpc ṣelọpọ lati awọn awo yoo ni ipinfunni ti o kere ju ti 17%.
* 2. Ayafi ti o nilo, awọn lile iye ko nilo lati ṣe ijabọ.
Ṣelọpọ
ASTM AAR24 Ile-iṣere Pero pe Lẹgbẹ le ṣee ṣe lati awọn opo iyebiye, awọn opo powding tabi awọn abọ nipasẹ awọn iṣẹ ṣiṣe, ẹrọ iṣapẹẹrẹ, tabi nipasẹ apapọ awọn iṣẹ wọnyi tabi diẹ sii. Gbogbo welds pẹlu awọn ohun-elo ni awọn ọja tubular lati inu awọn operi ni yoo ṣe ni ibamu ni ibamu apakan apakan ix. Itọju ooru-weld ooru ni ọdun 1100 si 1250 ° F [595 ° C] n ṣe lẹhin ilana kika.