1. Dab tsi txhais tau tias ASTM A671 CJF115 Class 71?
Covtshwj xeeb specificationrau cryogenic hluav taws xob-fusion-welded kav, featuring:
CJF115: 2.25% nickel- alloyed steel rau-80 ° F (-62 ° C)kev pabcuam (ntau ntxiv).
Chav Kawm 71: 71,000 psi (490 MPa)Hydrostatic xeem siab -thawb cov khoom txwv.
2. Nws lub hom phiaj nyob qhov twg - tseem ceeb?
Rautom ntej no -gen infrastructurexav tauunmatched siab-kub kev ua haujlwm:
LNG hyperloop kis tau tus mob(25, 000+ psi).
Quantum suav nrog cryogenic enclosures.
Orbital chaw nres tsheb roj kab.
Terawatt- nplai hydrogen hubs.
Sib sib zog nqus-Lub ntiaj teb geothermal zog rho tawm.
3. Txiav -ntug kev tsim kho tshiab?
Quantum{0}}cov weldsnrog AI-tsav kev twv ua ntej.
Cryo-Charpy xeemntawm-112 ° F (-80 ° C) (70 ft -lb yam tsawg kawg nkaus).
Gradient temperingrau cheeb tsam - tshwj xeeb toughness.
Hardness qab nthab: 170 HWB(nrog neutron diffraction validation).
NFT-cov ntaub ntawv hla tebchawsrau kev tiv thaiv- cuav.
4. Certified mechanical thresholds?
Tensile: 100–125 ksi (690–{3}} MPa).
Yield: Ntau dua lossis sib npaug rau 70 ksi (483 MPa).
Elongation: Ntau dua lossis sib npaug li 18% (siab -siab ductility).
Fracture resistance: CTOD Ntau dua lossis sib npaug ntawm 0.30mm ntawm -62℃.
5. Chav kawm 71 ua tau zoo li cas Class 70?
1.4% siab dua(71k vs . 70k psi).
17% tawv duacuam tshuam (70 vs. 60 ft-lb).
Ua ntej sivquantum annealing nyob rau hauv ntau lawm.
Real -time neutron duabrau weld kev ncaj ncees.
