DNV F40 yog qib siab -cov qib steel tshwj xeeb tsim los siv rau hauv cov nkoj hiav txwv. Cov qib ntawm cov hlau phaj no muaj npe nrov rau lawv cov khoom siv zoo heev, kev tiv thaiv corrosion, thiab qhov ruaj khov, ua rau lawv zoo tagnrho rau ntau yam kev siv marine.
Tshuaj muaj pes tsawg leeg
|
DNV F40 siab zog tshuaj muaj pes tsawg leeg |
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|
Qib |
Cov ntsiab lus Max (%) |
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|
C |
Si |
Mn |
P |
S |
Al |
N |
|
|
DNV F40 |
0.16 |
0.10-0.50 |
0.9-1.6 |
0.025 |
0.025 |
0.015-0.08 |
- |
|
Nb |
V |
Ti |
Cu |
Cr |
Ni |
Mo |
|
|
0.02-0.05 |
0.05-0.10 |
0.02 |
0.35 |
0.20 |
0.80 |
0.08 |
|
Mechanical Property
|
DNV F40 siab dav dav zog khoom |
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|
Qib |
|
Mechanical Property |
Charpy V Impact Test |
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|
Thickness |
Yield |
Tensile |
Elongation |
Qib |
Zog 1 |
Zog 2 |
|
|
DNV F40 |
mm |
Min Mpa |
Mpa |
Tsawg% |
-60 |
J |
J |
|
t Tsawg dua lossis sib npaug li 50 |
390 |
510-650 |
20% |
27 |
41 |
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|
50＜t Tsawg dua lossis sib npaug rau 70 |
390 |
510-650 |
20% |
30 |
45 |
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|
70＜t Tsawg dua lossis sib npaug rau 150 |
390 |
510-650 |
20% |
37 |
55 |
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|
Lus Cim: Lub Zog 1 yog qhov kev ntsuas cuam tshuam, Lub Zog 2 yog qhov ntev |
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Kev sim cuam tshuam
Kev ntsuam xyuas qhov cuam tshuam yog qhov tseem ceeb ntawm cov txheej txheem tswj kom zoo rau DNV F40 steel daim hlau. Qhov kev sim no suav nrog kev xa cov hlau mus rau qis - qhov kub thiab txias cuam tshuam rau kev ntsuas nws qhov tawv thiab tsis kam tawg. Cov phiaj xwm feem ntau raug sim ntawm qhov kub qis qis kom ntseeg tau tias lawv tuaj yeem tiv taus qhov txias txias uas tau ntsib nyob rau hauv ib puag ncig marine.
Daim ntawv thov tseem ceeb
DNV F40 steel phaj yog dav siv nyob rau hauv kev tsim kho ntawm hulls, decks, thiab lwm yam structural Cheebtsam ntawm ships thiab nkoj. Lawv lub zog siab thiab kev tiv thaiv corrosion ua rau lawv tshwj xeeb tshaj yog siv rau hauv cov qauv hauv ntug dej hiav txwv, cov nkoj thauj khoom, cov nkoj thauj khoom, thiab lwm cov nkoj hauv hiav txwv uas xav tau kev ruaj khov thiab kev ntseeg tau.
