DNV Grade B ship steel plate chemical composition
DNV Grade B steel is a kind of high tensile strength marine steel. All of these steels have been engineered to be optimal long-lived shipbuilding steels.DNV Grade B Shipbuilding steel plates are mainly used for making the offshore oil drilling platform, the hull of ship building and ship repairing, the platform pipe joints and other components. DNV Grade B (NVB) marine steel plates are used in manufacturing hull, maritime oil extraction drilling platform,platform tube junction and other structural components.
DNV GRADE B Chemical composition heat analysis
Element |
DNV GRADE BMax % |
Element |
DNV GRADE B max % |
C |
0.21 |
Ni |
|
Mn |
0.80 MIN |
Mo |
|
Si |
0.50 |
Al |
|
S |
0.035 |
Nb |
|
P |
0.035 |
V |
|
Cu |
|
Ti |
|
Cr |
|
N |
|
DNV GRADE B Mechanical properties,longitudinal min impact energy
Grade |
Thickness |
Yield Strength |
Tensile Strength |
Elongation |
Impact Energy |
(mm) |
MPa (min) |
MPa |
% (min) |
(KV J) (min) |
|
|
|
|
|
0 degree |
|
DNV GRADE B |
8-240 |
235 |
400-520 |
22 |
27J |
Note: the impact energy under less 50mm thickness
The DNV GRADE B max weight is 36MT/PCS. In Z test, GL EH32 Z15, GL EH32 Z25, GL EH32 Z35
UT test: S0E1,S1E2,S2E3 and other standard which be required by customers.
DNV GRADE B ship steel plate produce size in the following:
Thickness: 6mm to 240mm,
Width: 1500mm to 4020mm
Length: 3000mm to 27000mm.
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