CCS EH36 yog lub siab - lub zog shipbuilding steel phaj ntawv pov thawj los ntawm Tuam Tshoj Classification Society (CCS). Lub npe "EH" txhais tau hais tias nws yog qib siab - lub zog muaj zog nrog cov kev cuam tshuam toughness kuaj ntawm -40℃. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 355 MPa thiab tensile lub zog ntawm 490 mus rau 620 MPa, nrog rau qhov tsawg kawg nkaus elongation ntawm 21%. 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%. Nws feem ntau yog muab rau hauv ib qho xwm txheej lossis TMCP. Cov qib no yog siv dav rau cov qauv hull tseem ceeb, decks, thiab offshore platforms.
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%. Kev cuam tshuam lub zog ntawm -40℃yog qhov tsawg kawg nkaus ntawm 41J (ntev) rau thicknesses txog 50mm. Cov tshuaj muaj pes tsawg leeg zoo ib yam li EH36 nrog carbon Tsawg dua lossis sib npaug li 0.18% thiab manganese 0.90-1.60%. Cov qib no yog tsim los rau kev thov hauv kev tsim cov nkoj thiab cov qauv sab nrauv uas xav tau lub zog zoo dua, xws li hauv cov chaw muaj kev ntxhov siab ntawm cov nkoj loj.
Ob leeg CCS EH36 thiab CCS EH40 yog CCS - ntawv pov thawj siab - lub zog marine steels nrog zoo heev qis - kub toughness kuaj 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: EH36 muaj qhov tsawg kawg nkaus lub zog ntawm 355 MPa nrog lub zog tensile ntawm 490-620 MPa, haum rau kev siv lub zog siab dav dav, thaum EH40 muab lub zog qis dua 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 tiv thaiv muaj pes tsawg leeg thiab tswj cov weldability zoo rau cov kev pabcuam tseem ceeb hauv hiav txwv.
CCS EH36 siab zog Max tshuaj muaj nyob rau hauv Tempering thiab quenching
|
Qib |
C % |
Si% |
Mn% |
P % |
S % |
V % |
AL% |
Cr% |
|
EH 36 |
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
|
Element |
CCS EH40 Max % |
Element |
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 EH36 siab zog khoom nyob rau hauv tempering thiab quenching
|
Qib |
Thickness (hli) |
Tsawg-yield (Mpa) |
Tensile (MPa) |
Elongation (%) |
Min Impact Zog |
|
|
EH 36 |
8mm-50mm |
Min 355 Mpa |
490-620 Mpa |
21% |
-40 |
34J |
|
51mm-70mm |
Min 355 Mpa |
490-620 Mpa |
21% |
-40 |
41J |
|
|
71mm-100 hli |
Min 355 Mpa |
490-620 Mpa |
21% |
-40 |
50J |
|
|
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 |
