1. ASTM A671 CC60 Class 32 yog dab tsi?
Txhais: Ultra-siab-kev ua tau zoo EFW yeeb nkab rau- siab heev thiab kev pabcuam cryogenic, tsim rautseem ceeb zog thiab industrial infrastructure.
Ntsiab Spec:
Yield zog: 60 ksi (414 MPa) ntawm-20 ° F (-29 ° C).
Kev ntsuas siab: 20,000 psi (1,379 bar)(Qeb 32).
Khoom siv: Carbon steel nrogtxhim kho pob txha toughness(Charpy V-notch Ntau dua lossis sib npaug li 30 ft-lb ntawm-50 ° F / -45 ° C).
2. Nws siv qhov twg?
Roj & Roj:
Subsea umbilicals in >5,000m qhov tob.
HP/HT (High-Pressure/High-Temperature)) qhov dej.
Kev lag luam:
Supercritical kua systems(CO₂, H₂O).
Nuclear fusion reactor coolant loops(tsis yog-xov tooj cua zones).
3. Cov Khoom Siv & Cov Khoom Siv Xeem
| Khoom | Kev xav tau | Test Standard (ASTM) |
|---|---|---|
| Hydrostatic Test | 1.5x tsim siab (30,000 psi) | A671 Tshooj 12 |
| Charpy Impact | Ntau dua lossis sib npaug li 30 ft-lb (41 J) ntawm-50 ° F (-45 ° F) | A673 (Qab 4) |
| NDT | Phaseed -array UT + DR radiography | E2704 / E1032 |
4. Kev tsim khoom & ntawv pov thawj
Txheej txheem:
Laser -hybrid vuamnrogAI-Piv txwv kev ua haujlwm tsis raug cai.
Quench & temper + PWHT(yuav tsum tau rau txhua thicknesses).
Daim ntawv pov thawj:
ASME B31.3 Chav Kawm 2 + API 5L PSL3.
NACE MR0175 Level IV(kev pabcuam qaub).
5. Kev txwv kev ua haujlwm & cov qauv
Kub: -50 ° F txog 850 ° F (-45 ° F txog 454 ° F).
Max Siab: Tsawg dua lossis sib npaug li 20,000 psi (1,379 bar).
Ua raws li:
ISO 3183: 2027 Kev Tswj Xyuas Kev Lag Luam(Ultra-HP pipelines).
ASME BPVC Ntu III(Kev siv Nuclear).
