ASTM A671 CJP 115 Chav Kawm 21 Hlau Yeeb Nkab

1. ASTM A671 CJP115 Chav Kawm 21 yog dab tsi?

Covtom ntej no - tiam evolutionntawm cryogenic EFW yeeb nkab, txuas ntxiv dhau Chav Kawm 20 muaj peev xwm:

CJP115+: Txhim kho chemistry (C Tsawg dua lossis sib npaug ntawm 0.25%, Mn Tsawg dua lossis sib npaug rau 1.30% + Ni 0.30-0.60%)

Chav Kawm 21: 2,100 psi (14.5 MPa) hydrostatic siab(New kev lag luam benchmark)

Kev tawg: Ua ntej ua ke-150℃F (-101 degree) cuam tshuam kev kuajnrog ultra{0}}siab siab

2. Dab tsi yog nws cov kev hloov pauv hloov pauv?

Lub zog:

Tawm tswv yim: Ntau dua lossis sib npaug rau 38 ksi (260 MPa)

Tensile: 65-90 ksi (450-620 MPa)

Toughness:

Charpy V-ntsis:Min 25 ft-lb (34 J) ntawm -150℃F

Quench & temper kub khoyuav tsum tau

Corrosion kuj: Ntxiv Cu 0.20-0.40% rau thaj chaw ntug dej hiav txwv arctic

3. Nws lub hom phiaj nyob qhov twg - tseem ceeb?

LNG mega{0}} tsheb ciav hlau(Ntau dua lossis sib npaug rau 8 MTPA peev)

Subsea Arctic gas pipelinesnrog HP / HT cov xwm txheej

Ua kua hydrogen thaujrau qhov chaw tso tawm complexes

Fusion reactor cryogenic ntim tshuab

4. Nws rov txhais cov qauv kev tsim khoom li cas?

Vuam:

Laser -hybrid EFWnrog phased-array UT + digital radiography

AI-tsav weld defect detection (API 1188 Level III)

Khoom siv:

Cov hlau huv huv(S Tsawg dua lossis sib npaug rau 0.008%, P Tsawg dua lossis sib npaug rau 0.012%)

ASTM A841 Thermo- tshuab dov phaj

Kev sim:

Cryo-hydrostatic(Kev ntsuas siab ntawm -100℃F)

CTOD fracture mechanics validation

5. Nws zoo dua li kev sib tw specs li cas?