CCS FH32 yog lub siab - lub zog marine steel phaj tau ntawv pov thawj los ntawm Tuam Tshoj Classification Society (CCS) rau kev tsim nkoj thiab kev siv sab nrauv. Lub npe "FH" txhais tau hais tias nws yog qib siab - lub zog muaj zog nrog cov kev cuam tshuam toughness kuaj ntawm qhov tsis tshua muaj kub ntawm -60 degree, kom ntseeg tau tias kev ua tau zoo hauv cov polar thiab Arctic ib puag ncig. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 315 MPa thiab tensile lub zog ntawm 440 txog 590 MPa, nrog rau qhov tsawg kawg nkaus elongation ntawm 22%. Nws cov tshuaj muaj pes tsawg leeg yog tswj nruj me ntsis, nrog carbon tsawg dua los yog sib npaug rau 0.16% thiab manganese 0.90{15}}1.60%. Cov qib no yog siv dav rau cov qauv hull, offshore platforms, thiab cov nkoj dej khov hauv chav kawm uas xav tau qhov zoo tshaj qhov kub thiab txias.
CCS FH40 yog ib qho ntxiv - siab - lub zog marine steel phaj kuj tau lees paub los ntawm CCS, tsim los ntawm kev ua haujlwm zoo, TMCP, lossis quenched thiab tempered tej yam kev mob . Lub "40" qhia txog qhov tsawg kawg nkaus lub zog ntawm 390 MPa thiab tensile lub zog ntawm 510 txog 660 MPa, nrog rau qhov tsawg kawg nkaus elongation ntawm 20%. Zoo li FH32, nws raug kuaj xyuas ntawm -60 degree, nrog rau qhov tsawg kawg nkaus lub zog yuav tsum tau ntawm 41J (ntev) rau thicknesses txog 50 hli. Qib no yog tsim los rau kev xav tau cov khoom siv hauv kev tsim khoom hauv nkoj, cov chaw ua haujlwm sab nrauv, thiab cov qauv hauv hiav txwv uas xav tau lub zog zoo dua.
Ob leeg CCS FH32 thiab CCS FH40 yog CCS- ntawv pov thawj siab - lub zog marine steels nrog tshwj xeeb qis- qhov kub thiab txias tau sim ntawm -60 degree, kom ntseeg tau tias kev ua tau zoo nyob rau hauv qhov hnyav tshaj plaws Arctic thiab hnyav marine ib puag ncig. Lawv thawj qhov sib txawv yog nyob rau hauv lub zog theem: FH32 muaj qhov tsawg kawg nkaus tawm lub zog ntawm 315 MPa nrog tensile lub zog ntawm 440-590 MPa, haum rau dav dav-lub zog hull kev tsim kho thiab offshore platforms, thaum FH40 muab ib tug siab tshaj tawm lub zog ntawm 390 MPa nrog tensile-lub zog xav tau ntau tshaj 600 MPa. xav tau lub zog zoo dua. Ob qib tshwj xeeb tswj cov tshuaj muaj pes tsawg leeg (cov pa roj carbon tsawg dua lossis sib npaug li 0.16%) thiab tuav cov weldability zoo rau cov kev pabcuam tseem ceeb hauv hiav txwv.
CCS FH32 siab zog Max tshuaj muaj pes tsawg leeg nyob rau hauv tempering thiab quenching
|
Qib |
C % |
Si% |
Mn% |
P % |
S % |
V % |
AL% |
Cr% |
|
CCS FH32 |
0.160 |
0.10-0.5 |
0.9-1.6 |
0.025 |
0.025 |
0.05-0.10 |
0.015 |
0.200 |
|
Cu% |
Mo% |
Nb% |
Ni% |
Ti % |
N % |
|
|
|
|
0.350 |
0.080 |
0.02-0.05 |
0.080 |
0.020 |
0.012 |
|
|
CCS FH40 siab zog Max tshuaj muaj pes tsawg leeg nyob rau hauv tempering thiab quenching
|
Element |
CCS FH40 Max % |
Element |
CCS FH40 Max % |
|
C |
0.16 |
Ni |
0.40 |
|
Mn |
0.90-1.60 |
Mo |
0.08 |
|
Si |
0.50 |
Al |
0.0015 min |
|
S |
0.025 |
Nb |
0.20-0.05 |
|
P |
0.025 |
V |
0.05-0.10 |
|
Cu |
0.35 |
Ti |
0.02 |
|
Cr |
0.20 |
N |
0.009 |
CCS FH32 siab zog khoom nyob rau hauv tempering thiab quenching
|
Qib |
Thickness (hli) |
Tsawg-yield (Mpa) |
Tensile (MPa) |
Elongation (%) |
Min Impact Zog |
|
|
CCS FH32 |
8mm-50mm |
Min 315 Mpa |
440-590 Mpa |
22% |
-60 |
34J |
|
51mm-70mm |
Min 315 Mpa |
440-590 Mpa |
22% |
-60 |
NA |
|
|
71mm-100 hli |
Min 315 Mpa |
440-590 Mpa |
22% |
-60 |
NA |
|
CCS FH40 siab zog khoom nyob rau hauv tempering thiab quenching
|
Qib |
Thickness |
Yield zog |
Tensile zog |
Elongation |
Impact Zog |
|
(mm) |
MPa (min) |
MPa |
% (min) |
(KV J) (min) |
|
|
|
|
|
|
-60 degree |
|
|
CCS FH40 |
8-220 |
390 |
510-650 |
20 |
41J |
