CCS EH32 yog lub siab - lub zog shipbuilding steel phaj ntawv pov thawj los ntawm Tuam Tshoj Classification Society (CCS). Qib "E" txhais tau hais tias nws yog qhov cuam tshuam los ntawm -40 degree, nrog rau qhov cuam tshuam tsawg kawg nkaus ntawm 46J (transverse), kom ntseeg tau zoo heev rau qhov chaw txias marine. 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%. Cov tshuaj muaj pes tsawg leeg yog nruj me ntsis tswj nrog carbon Tsawg dua los yog sib npaug rau 0.18% thiab manganese 0.90-1.60%. Cov qib no yog siv dav rau cov qauv hull, offshore platforms, thiab marine Cheebtsam.
CCS EH40 yog ib qho ntxiv -siab- lub zog marine steel phaj kuj tau ntawv pov thawj los ntawm CCS, nrog rau kev cuam tshuam toughness kuaj ntawm -40℃. 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%. Cov tshuaj muaj pes tsawg leeg muaj cov pa roj carbon tsawg dua lossis sib npaug li 0.18% thiab manganese 0.90-1.60%, nrog rau cov ntsiab lus microalloying xws li Nb thiab V rau cov khoom txhim kho. Cov qib no yog tsim los rau kev thov cov qauv siv hauv cov nkoj loj, cov chaw tawm sab nrauv, thiab cov haujlwm ua haujlwm hauv dej hiav txwv.
Ob leeg CCS EH32 thiab CCS EH40 yog CCS- ntawv pov thawj siab - lub zog marine steels nrog qis zoo heev - kub toughness sim ntawm -40 degree, kom ntseeg tau tias kev ua tau zoo nyob rau hauv hnyav marine ib puag ncig . Lawv qhov sib txawv tseem ceeb nyob hauv qib siab: EH32 muaj qhov tsawg kawg nkaus lub zog ntawm 315 MPa nrog lub zog tensile ntawm 440-590 MPa, haum rau kev siv lub zog loj dav dav, thaum EH40 muab qhov siab tshaj qhov tawm los ntawm 390 MPa nrog lub zog tensile xav tau txog 510-60 MPa ntau dua cov ntaub ntawv. zog. Ob chav kawm muaj cov tshuaj tswj cov tshuaj muaj pes tsawg leeg (cov pa roj carbon tsawg dua lossis sib npaug li 0.18%) thiab tswj cov weldability zoo rau cov kev pabcuam tseem ceeb hauv hiav txwv.
CCS EH32 siab zog Max tshuaj muaj pes tsawg leeg nyob rau hauv tempering thiab quenching
|
Qib |
C % |
Si% |
Mn% |
P % |
S % |
V % |
AL% |
Cr% |
|
EH 32 |
0.180 |
0.1-0.5 |
0.90-1.6 |
0.035 |
0.035 |
0.05-0.10 |
0.015 |
0.200 |
|
Cu% |
Mo% |
Nb% |
Ni% |
Ti % |
|
|
|
|
|
0.350 |
0.080 |
0.02-0.05 |
0.400 |
0.020 |
|
|
|
CCS EH40 siab zog Max tshuaj muaj pes tsawg leeg nyob rau hauv tempering thiab quenching
|
Lub ntsiab |
CCS EH40 Max % |
Lub ntsiab |
CCS EH40 Max % |
|
C |
0.18 |
Ni |
0.40 |
|
Mn |
0.90-1.60 |
Mo |
0.08 |
|
Si |
0.50 |
Al |
0.0015 min |
|
S |
0.035 |
Nb |
0.20-0.05 |
|
P |
0.035 |
V |
0.05-0.10 |
|
Cu |
0.35 |
Ti |
0.02 |
|
Cr |
0.20 |
N |
|
CCS EH32 siab zog khoom nyob rau hauv tempering thiab quenching
|
Qib |
Thickness (hli) |
Tsawg-yield (Mpa) |
Tensile (MPa) |
Elongation (%) |
Min Impact Zog |
|
|
EH 32 |
8mm-50mm |
Min 315 Mpa |
440-590 Mpa |
22% |
-40 |
34J |
|
51mm-70mm |
Min 315 Mpa |
440-590 Mpa |
22% |
-40 |
38J |
|
|
71mm-100 hli |
Min 315 Mpa |
440-590 Mpa |
22% |
-40 |
46J |
|
|
Lub min cuam tshuam lub zog yog longitudinal zog |
||||||
CCS EH40 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) |
|
|
|
|
|
|
-40 degree |
|
|
CCS EH40 |
8-220 |
390 |
510-650 |
20 |
41J |
