1. "Class 30" txhais li cas hauv ASTM A671 CJH115?
Chav Kawm 30qhia ibultra-siab hydrostatic xeem siab ntawm 30,000 psi (207 MPa), tsim los rau huab cua siab ntim hauv qhov chaw cryogenic.
CJH115txoj cai longitudinal Charpy V-notch impact testing at-115 ° F (-81 ° C)nrog siab -lub zog (H) steel yuav tsum.
2. Qib tshwj xeeb no siv rau qhov twg?
LNG megaprojects: Siab-siab liquefaction thiab cia tshuab
Nuclear fusion reactors: Cryogenic coolant ntim cov hlab ntsha
Kev tshawb nrhiav chaw: Roj kab rau cov kua hydrogen- lub foob pob hluav taws
3. Mechanical Property Benchmarks?
Tensile zog: Ntau dua lossis sib npaug rau 90 ksi (621 MPa)
Yield zog: Ntau dua lossis sib npaug rau 60 ksi (414 MPa)
Impact toughness: Ntau dua lossis sib npaug li 40 ft -lb (54 J) ntawm -115℃F
Fracture resistance: Kev kuaj CTOD Ntau dua lossis sib npaug ntawm 0.15mm ntawm qhov ntsuas kub
4. Metallurgical innovation?
Nano-engineered muaj pes tsawg leeg:
C Tsawg dua lossis sib npaug li 0.15%, Mn 1.4-2.0% nrog microalloying (Nb + Ti + Mo)
Tsis tshua muaj ntiaj teb cov ntsiab lus (Ce / La) rau sulfide zoo tswj
Thermomechanical ua: Ultra- txias txias kom ua tiav lath martensite microstructure
5. Daim ntawv pov thawj thiab kev xeem?
Quadruple NDE: RT+UT+PAUT+TOFD (Phased Array/Time-ntawm-Flight Diffraction)
Tag nrho - ntsuas qhov ntsuas tawgntawm -165 ° F (-109 ° C)
Kev tsim khoom ntse: IoT-enabled production with real-time defect detection
