1. A671 CJA115 Class 51 Steel Pipe yog dab tsi?
Teb:
CovA671 CJA115 Chav Kawm 51yog covpinnacle ntawm hluav taws xob-fusion-welded carbon steel yeeb nkab tshuabRaws li ASTM A671, engineered rauultra- qis- kev pabcuam kub (-75℃F/-60 degree)thiabcov ntaub ntawv -siab- cov ntawv thov siab (51,000 psi hydrostatic test). Nws qib "CJA115" (raws li ASTM A537 Chav Kawm 1) ua kom ntseeg tau tias qhov kev ua haujlwm tsis sib haum xeeb rau lub hom phiaj- cov txheej txheem tseem ceeb hauv cov cheeb tsam huab cua.
2. Kev Tswj Cov Qauv & Cov Lus Qhia Tseem Ceeb?
Teb:
Txheem:ASTM A671 (EFW kav dej rau qis-kev pabcuam kub).
Khoom siv:CJA115 (C Tsawg dua lossis sib npaug rau 0.24%, Mn 0.70–1.35%, P / S Tsawg dua lossis sib npaug li 0.025%).
Kev kuaj:
100% automated UT / RT +Charpy V-notch ntawm -75℃F.
51,000 psi hydrostatic test(kev lag luam-ua).
Qhov Loj:Hom OD 16 "-160", phab ntsa thickness optimized rau kev ntxhov siab loads.
3. Cov cuab yeej siv tshuab tseem ceeb?
| Khoom | Tus nqi |
|---|---|
| Tensile zog | Ntau dua lossis sib npaug rau 80 ksi (550 MPa) |
| Yield zog | Ntau dua lossis sib npaug rau 50 ksi (345 MPa) |
| Impact Toughness | >45J ntawm -75℃F (-60 degree) |
| Siab Muaj Peev Xwm | 51,000 psi(3,517 bar) |
4. Cov ntawv thov zoo li cas?
Zog:
Ultra-deepwater pipelines (>7,000 m tob).
Cryogenic hydrogen / LNG thauj (-196 degree).
Aerospace:
Rocket propellant ntim (LOX/LH2).
Nuclear:
Advanced reactor coolant systems.
5. Chav Kawm 51 piv rau Chav Kawm 50 li cas?
| Parameter | Chav Kawm 51 | Chav Kawm 50 |
|---|---|---|
| Kev ntsuas siab | 51,000 psi | 50,000 psi |
| Tsim kom pom tseeb | Tom ntej no -gen applications | Tam sim no siab - xav tau |
| Tus nqi hwm | ~ 8-12% siab dua | Lub hauv paus |
