CCS B thiab ABS B yog ib txwm muaj zog shipbuilding steel daim hlau, tau ntawv pov thawj los ntawm Tuam Tshoj Classification Society (CCS) thiab American Bureau of Shipping (ABS) feem, siv rau lub nkoj hulls, nrog rau ob qib muab cov khoom zoo sib xws (nyob ib ncig ntawm 34 ksi yield, 58-75 ksi tensile zog) tab sis muaj kev sib txawv ntawm kev sib tw, kev sib tw sib txawv cov qauv rau toughness thiab weldability nyob rau hauv marine ib puag ncig.
Tshuaj muaj pes tsawg leeg
|
Element |
CCS B Max % |
Element |
CCS B Max % |
|
C |
0.21 |
Ni |
|
|
Mn |
0.80 |
Mo |
|
|
Si |
0.35 |
Al |
|
|
S |
0.035 |
Nb |
|
|
P |
0.035 |
V |
|
|
Cu |
|
Ti |
|
|
Cr |
|
N |
|
|
ABS GRADE B general zogTshuaj muaj pes tsawg leeg |
||||||
|
Qib |
Cov ntsiab lus Max (%) |
|||||
|
C |
Si |
Mn |
P |
S |
N |
|
|
ABS qib B |
0.21 |
0.35 |
0.80 |
0.035 |
0.035 |
0.02 |
Mechanical Property
|
Qib |
Thickness |
Yield zog |
Tensile zog |
Elongation |
Impact Zog |
|
(mm) |
MPa (min) |
MPa |
% (min) |
(KV J) (min) |
|
|
|
|
|
|
0 degree |
|
|
CCS B |
8-240 |
235 |
400-520 |
22 |
27J |
|
ABS GRADE B siab zog khoom |
|||||||
|
Qib |
|
Mechanical Property |
Charpy V Impact Test |
||||
|
Thickness |
Yield |
Tensile |
Elongation |
Qib |
Zog 1 |
Zog 2 |
|
|
ABS qib B |
mm |
Min Mpa |
Mpa |
Tsawg% |
0 |
J |
J |
|
t Tsawg dua lossis sib npaug li 50 |
235 |
400-520 |
18% |
20 |
27 |
||
|
50＜t Tsawg dua lossis sib npaug rau 70 |
235 |
400-520 |
18% |
24 |
34 |
||
|
70＜t Tsawg dua lossis sib npaug rau 100 |
235 |
400-520 |
18% |
27 |
41 |
||
|
Lus Cim: Lub Zog 1 yog qhov kev cuam tshuam cuam tshuam, Lub Zog 2 yog qhov ntev |
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Cov yam ntxwv tseem ceeb:
Daim Ntawv Thov: Feem ntau rau kev tsim vaj tsev dav dav thiab cov khoom siv ntawm cov hlab ntsha.
Lub zog: Common lub zog steel, haum rau kev xav tau kev tsim kho nkoj dav dav.
Mechanical Properties (Kwv yees): Yield Strength ~ 34 ksi (235 MPa), Tensile Strength ~ 58-75 ksi (400-510 MPa).
Kev Ntsuas: Yuav tsum tau qis- ntsuas qhov kub thiab txias (piv txwv li, 0 degree) thiab kev kho cua sov tshwj xeeb (xws li Normalizing) rau cov phaj tuab, raws li tau piav qhia hauv daim ntawv pov thawj zeb xeem (MTCs).
ABS vs CCS:
Daim ntawv pov thawj: Tuam Tshoj Classification Society (CCS) thiab American Bureau of Shipping (ABS) yog cov koom haum kev lag luam kev lag luam ywj pheej uas tsim cov qauv rau kev tsim nkoj thiab cov khoom siv.
Qhov sib npaug: Thaum cov khoom zoo sib xws, qhov kev xaiv (CCS B lossis ABS B) qhia txog kev ua raws li lub zej zog cov cai, tseem ceeb heev rau kev faib cov nkoj thiab kev sau npe.
