BV Gradd Ayn fath odur adeileddol poeth-rholioar gyfer adeiladu llongau, wedi'i ardystio ganBureau Veritas. Dyma'r radd cryfder isaf o'i bath, gyda chryfder cynnyrch lleiaf o 235MPa(34,100psi) a chryfder tynnol o 400−520 MPa(58,000-75,500 psi). Defnyddir BV Gradd A ar gyfer cydrannau strwythurol mewn llongau, cychod ac offer morol.
BV Gradd A Adeiladu Llongau Plât Dur Cyfansoddiad Cemegol ac Eiddo Mecanyddol
| C uchafswm | Si max. | Mn min. | P max | S max | Cu max | Cr max | Ni max |
|
0.21 |
0.50 |
0.50 |
0.035 |
0.035 |
0.35 | 0.30 |
0.30 |
|
BV GRADD Mae eiddo cryfder arferol mewn poeth Rolled |
|||||||
|
Gradd |
|
Eiddo Mecanyddol |
Prawf Effaith Charpy V |
||||
|
Trwch |
Cnwd |
Tynnol |
Elongation |
Gradd |
Egni 1 |
Egni 2 |
|
|
BV GRADD A |
mm |
Mpa Isaf |
Mpa |
Isafswm % |
20 |
J |
J |
|
t Llai na neu'n hafal i 50 |
235 |
400-520 |
22% |
|
|
||
|
50＜t Llai na neu'n hafal i 70 |
235 |
400-520 |
22% |
24 |
34 |
||
|
70＜t Llai na neu'n hafal i 100 |
235 |
400-520 |
22% |
27 |
41 |
||
Cais Plât Dur Adeiladu Llongau Gradd A BV
Adeiladu Hull
Defnyddir Platiau Dur Morol BV Gradd A yn bennaf wrth adeiladu'rstrwythur corff llongau, gan gynnwys cludwyr swmp, tanceri olew, llongau cynhwysydd, a llongau cargo cyffredinol.
Y durcryfder tynnol uchel ac ymwrthedd effaithsicrhau cywirdeb strwythurol o dan lwythi trwm, tonnau cryf, ac amodau morol deinamig.
Deciau ac Uwchstrwythurau
Cymhwysol yn y gwneuthuriad odeciau llongau, uwch-strwythurau, a phennau swmp, Mae platiau llong BV Gradd A yn cynnal sefydlogrwydd a gallu cario-wrth wrthsefyll anffurfiad.
Strwythurau Peirianneg Alltraeth
Defnyddir graddau plât dur llwyfan alltraeth BV Gradd A hefyd ynllwyfannau alltraeth, rigiau drilio, ac unedau storio a dadlwytho cynhyrchu fel y bo'r angen (FPSO)..
Eu gallu i wrthsefylleffaith-tymheredd iselaamodau môr garwyn eu gwneud yn addas ar gyfer prosiectau archwilio olew a nwy môr dwfn.
Cydrannau Atgyfnerthu a Diogelwch
Defnyddir mewn rhannau hanfodol o longau, gan gynnwyscilbren, asennau, fframiau, a bracedi, i ddarparu cryfder ychwanegol a gwella diogelwch cyffredinol llongau.
Plât Dur Adeiladu Llongau BV Gradd A Enw Arall
Plât dur adeiladu llongau BV Gradd A, plât dur Llong BV Gradd A, plât dur BV Gradd A Morol, plât dur BV Gradd A.
Amod Ychwanegol
UT(Arholiad Ultrasonig), AR(Fel wedi'i Rolio'n Boeth yn unig), TMCP (Prosesu Rheolaeth Fecanyddol Thermol), N (Normaleiddio), Q+T (Wedi'i Ddileu a'i Dymheru), Prawf Cyfeiriad Z (Z15, Z25, Z35), Charpy V -Prawf Effaith Notch, Y Prawf Trydydd Parti (fel SGS. Profi a Ffrwydro), Cotio a Ffrwydro
Os ydych chi eisiau dysgu am blatiau llong eraill neu eu prynu gan GNEE, gallwch anfon e-bost atinfo@gneesteels.com.Byddwn yn hapus iawn i wasanaethu chi.
| Cyflenwr Gradd Plât Dur ABS | ||||
| Cryfder Cyffredinol | ABS Gradd A | ABS Gradd B | ABS Gradd D | ABS GraddE |
| Cryfder Uchel | ABS Gradd AH32 | ABS Gradd DH32 | ABS Gradd EH32 | ABS Gradd FH32 |
| ABS Gradd AH36 | ABS Gradd DH36 | ABS Gradd EH36 | ABS Gradd FH36 | |
| ABS Gradd AH40 | ABS Gradd DH40 | ABS Gradd EH40 | ABS Gradd FH40 | |
| Cryfder Ychwanegol | ABS Gradd AQ43 | ABS Gradd DQ43 | ABS Gradd EQ43 | ABS Gradd FQ43 |
| ABS Gradd AQ47 | ABS Gradd DQ47 | ABS Gradd EQ47 | ABS Gradd FQ47 | |
| ABS Gradd AQ51 | ABS Gradd DQ51 | ABS Gradd EQ51 | ABS Gradd FQ51 | |
| ABS Gradd AQ56 | ABS Gradd DQ56 | ABS Gradd EQ56 | ABS Gradd FQ56 | |
| ABS Gradd AQ63 | ABS Gradd DQ63 | ABS Gradd EQ63 | ABS Gradd FQ63 | |
| ABS Gradd AQ70 | ABS Gradd DQ70 | ABS Gradd EQ70 | ABS Gradd FQ70 | |
| Cyflenwr Gradd ASTM A131 | ||||
| Cryfder cyffredin | ASTM A131 Gradd A | ASTM A131 Gradd B | ASTM A131 Gradd D | ASTM A131 Gradd E |
| caledwch tymheredd - isel | ASTM A131 Gradd AH32 | ASTM A131 Gradd AH36 | ASTM A131 Gradd AH40 | |
| / | ||||
| Gwydnwch tymheredd isel canolig - | ASTM A131 Gradd DH32 | ASTM A131 Gradd DH36 | ASTM A131 Gradd DH40 | |
| / | ||||
| Gwydnwch tymheredd isel - gwell | ASTM A131 Gradd EH32 | ASTM A131 Gradd EH36 | ASTM A131 Gradd EH40 | |
| / | ||||
| Gwydnwch tymheredd isel iawn - | ASTM A131 Gradd FH32 | ASTM A131 Gradd FH36 | ASTM A131 Gradd FH40 | |
| / | ||||
| Cyflenwr Gradd Plât Dur CCS | ||||
| Cryfder Cyffredinol | CCS Gradd A | CCS Gradd B | CCS Gradd D | CCS GradeE |
| Cryfder Uchel | CCS Gradd AH32 | CCS Gradd DH32 | CCS Gradd EH32 | CCS Gradd FH32 |
| CCS Gradd AH36 | CCS Gradd DH36 | CCS Gradd EH36 | CCS Gradd FH36 | |
| CCS Gradd AH40 | CCS Gradd DH40 | CCS Gradd EH40 | CCS Gradd FH40 | |
| Cryfder Ychwanegol | CCS Gradd AQ43 | CCS Gradd DQ43 | CCS Gradd EQ43 | CCS Gradd FQ43 |
| CCS Gradd AQ47 | CCS Gradd DQ47 | CCS Gradd EQ47 | CCS Gradd FQ47 | |
| CCS Gradd AQ51 | CCS Gradd DQ51 | CCS Gradd EQ51 | CCS Gradd FQ51 | |
| CCS Gradd AQ56 | CCS Gradd DQ56 | CCS Gradd EQ56 | CCS Gradd FQ56 | |
| CCS Gradd AQ63 | CCS Gradd DQ63 | CCS Gradd EQ63 | CCS Gradd FQ63 | |
| Gradd CCS AQ70 | CCS Gradd DQ70 | CCS Gradd EQ70 | Gradd CCS FQ70 | |
| Cyflenwr Gradd Plât Dur LR | ||||
| Cryfder Cyffredinol | LR/A | O'r chwith i'r chwith/B | LR/D | o'r chwith i'r dde |
| Cryfder Uchel | LR/AH32 | LR/DH32 | LR/EH32 | LR/FH32 |
| LR/AH36 | LR/DH36 | LR/EH36 | LR/FH36 | |
| LR/AH40 | LR/DH40 | LR/EH40 | LR/FH40 | |
| Cryfder Ychwanegol | LR/AH42 | LR/DH42 | LR/EH42 | LR/FH42 |
| LR/AH46 | LR/DH46 | LR/EH46 | LR/FH46 | |
| LR/AH50 | LR/DH50 | LR/EH50 | LR/FH50 | |
| LR/AH55 | LR/DH55 | LR/EH55 | LR/FH55 | |
| LR/AH62 | LR/DH62 | LR/EH62 | LR/FH62 | |
| LR/AH69 | LR/DH69 | LR/EH69 | LR/FH69 | |
| Cyflenwr Gradd Plât Dur DNV | ||||
| Cryfder Cyffredinol | DNV Gradd A | DNV Gradd B | DNV Gradd D | DNV Gradd E |
| Cryfder Uchel | DNV Gradd A32 | DNV Gradd D32 | DNV Gradd E32 | DNV Gradd F32 |
| DNV Gradd A36 | DNV Gradd D36 | DNV Gradd E36 | DNV Gradd F36 | |
| DNV Gradd A40 | DNV Gradd D40 | DNV Gradd E40 | DNV Gradd F40 | |
| Cryfder Ychwanegol | DNV Gradd A420 | DNV Gradd D420 | DNV Gradd E420 | DNV Gradd F420 |
| DNV Gradd A460 | DNV Gradd D460 | DNV Gradd E460 | DNV Gradd F460 | |
| Gradd DNV A500 | DNV Gradd D500 | DNV Gradd E500 | DNV Gradd F500 | |
| DNV Gradd A550 | DNV Gradd D550 | DNV Gradd E550 | DNV Gradd F550 | |
| DNV Gradd A620 | DNV Gradd D620 | DNV Gradd E620 | Gradd DNV F620 | |
| DNV Gradd A690 | DNV Gradd D690 | DNV Gradd E690 | DNV Gradd F690 | |
| Gradd Plât Dur BV | ||||
| Cryfder Cyffredinol | BV/A | BV/B | BV/D | BV/E |
| Cryfder Uchel | BV/AH32 | BV/DH32 | BV/EH32 | BV/FH32 |
| BV/AH36 | BV/DH36 | BV/EH36 | BV/FH36 | |
| BV/AH40 | BV/DH40 | BV/EH40 | BV/FH40 | |
| Cryfder Ychwanegol | BV/A420 | BV/D420 | BV/E420 | BV/F420 |
| BV/A460 | BV/D460 | BV/E460 | BV/F460 | |
| BV/A500 | BV/D500 | BV/E500 | BV/F500 | |
| BV/A550 | BV/D550 | BV/E550 | BV/F550 | |
| BV/A620 | BV/D620 | BV/E620 | BV/F620 | |
| BV/A690 | BV/D690 | BV/E690 | BV/F690 | |
