ASTM A671 CJF115 Chav Kawm 53 yog dab tsi?
Qhov kev qhia tshwj xeeb no suav nrog hluav taws xob -fusion-welded steel yeeb nkab nrog 2.25% nickel alloy (CJF115) rau kev pabcuam cryogenic mus txog -75℃F (-60℃). Chav Kawm 53 qhia txog kev ntsuas hydrostatic siab ntawm 53,000 psi (365 MPa), ua rau nws haum rau kev siv siab heev.
Cov ntawv thov tseem ceeb yog dab tsi?
Siab -siab LNG tsheb thauj mus los
Cryogenic ua khoom siv
Arctic pipeline infrastructure
Siab - siab hydrogen cia nkoj
Offshore platforms hauv qhov chaw txias
Cov kev cai tsim khoom yog dab tsi?
Ob -welded kev tsim kho (sab hauv thiab sab nraud)
100% radiographic kuaj ntawm tag nrho cov welds
Charpy V- ntsuas qhov cuam tshuam ntawm -75℃F (-60 degree)
Normalized los yog quenched thiab tempered kev kho cua sov
Kev tswj nruj nruj (tsawg dua lossis sib npaug rau 200 HBW)
Cov khoom siv tshuab yog dab tsi?
Tensile zog: Ntau dua los yog sib npaug rau 70 ksi (485 MPa)
Yield zog: Ntau dua los yog sib npaug rau 40 ksi (275 MPa)
Elongation: Ntau dua lossis sib npaug li 20%
Impact toughness: Yam tsawg kawg 20 ft -lb ntawm qhov ntsuas kub
Hardness: Tsawg dua los yog sib npaug rau 200 HBW
Nws piv rau cov chav kawm qis li cas? Chav Kawm 53 muab:
Kev ntsuas siab siab (53k psi vs 52k psi rau Chav Kawm 52)
Ntau nruj me ntsis tolerances
Txhim kho cov ntaub ntawv traceability xav tau
Cov txheej txheem kev soj ntsuam nruj dua
Kev ua tau zoo dua hauv ultra- kev pabcuam siab cryogenic
