1. ASTM A671 CG100 Class 10 yog dab tsi?
Teb:
ASTM A671 CG100 Chav Kawm 10 qhia meejhluav taws xob-fusion-welded carbon steel kavtsim los rau:
Siab - kev pabcuam siab(Class 10 qhia txog kev ntsuas ntsuas hydrostatic siab)
Cryogenic kubnqes rau-50 ° F (-45 ° F)
CG100 npe: Carbon steel nrog yam tsawg kawg nkaus yield zog ntawm100 ksi (690 MPa)
Feature tseem ceeb:Longitudinal seam welding (EFW) los ntawm cov thermo- cov phaj kho tshuab rau kev txhim kho toughness.
2. Cov Khoom Siv Tshuaj Txhuam Hniav?
Teb:
Cov kev txwv tseem ceeb ntawm alloy (wt.% max):
| Element | Ntau yam | Lub hom phiaj |
|---|---|---|
| C | Tsawg dua lossis sib npaug li 0.23% | Ntsuas lub zog / weldability |
| Mn | Tsawg dua lossis sib npaug li 1.60% | Nce hardenability |
| P | Tsawg dua lossis sib npaug li 0.025% | Ultra{0}} qis rau cov kev pabcuam cryogenic |
| S | Tsawg dua lossis sib npaug li 0.015% | Minimizes sulfide inclusions |
| Si | 0.15-0.40% | Deoxidation tus neeg sawv cev |
Micro{0}} alloying:Tej zaum yuav suav nrog Nb / V / Ti (tsawg dua lossis sib npaug rau 0.15% ua ke) rau kev ua kom zoo ntawm cov nplej.
3. Mechanical Properties & Testing?
Teb:
Qhov yuav tsum tau muaj:
Tensile zog:110-130 ksi (760-895 MPa)
Yield zog: Ntau dua lossis sib npaug rau 100 ksi (690 MPa)
Elongation:Ntau dua lossis sib npaug li 16% (50mm gauge)
Impact Toughness:
Charpy V-ntsis:30 ft -lb (41J) avg ntawm -50℃F (-45 degree)
Hydrostatic Test:Yam tsawg kawg nkaus2.5x tsim siab
Kev Xeem Tshwj Xeeb:
100% radiography (RT) lossis kuaj ultrasonic (UT)
Optional HIC/SSC xeem rau kev pabcuam qaub
4. Cov ntawv thov thiab qhov zoo?
Teb:
Kev Siv Tseem Ceeb:
Subsea Roj & Roj
Siab -siab flowlines (10, 000+ psi)
Cryogenic LNG offloading systems
Lub zog tiam
Advanced ultra-supercritical (AUSC) boiler raj
Chaw / Aerospace
Kua foob pob hluav taws roj hloov tshuab
Qhov zoo vs. Standard Qib:
40% siab zog tawm los ntau dua cov pa CF70 qib
Khaws ductility ntawm qhov kub thiab txias
Weldability piv rau qis dua -lub zog steels
5. Ua li cas CG100 Chav Kawm 10 Muab piv rau Cov Qauv Zoo sib xws?
Technical Comparison Table:
| Parameter | ASTM A671 CG100 | API 5L X100 | ASTM A333 Gr.10 |
|---|---|---|---|
| Txheej txheem | EFW | SMLS/SAW | Seamless |
| Tawm tswv yim (MPa) | 690 | 690 | 550 |
| Temp Range | -45℃rau +200 degree | Ambient | -196℃rau +340 degree |
| NDE Level | 100% RT + UT | Automated UT | Spot RT |
| Tus nqi hwm | 35-50% | 20-30% | 15% |
Cov Txheej Txheem Xaiv:
Xaiv CG100 rausiab -siab cryogenictshuab
API 5L X100 rauarctic raj xa dejtej yaam num
A333 Gr.10 rausib sib zog nqus cryogenic(-196 degree) daim ntawv thov
