Shipbuilding steel plate NV F420 to construct tanks and vessels in ships cause DNV F420 ship plate owned the higher yield strength and tensile strength.Different thicknesses,width mainly in 2000-2500mm,length mainly in 6000-12000mm for steel plate DNV Grade F420.
Steel Standard:DNV (Det Norske Veritas)
Rolling Type:Extra high strength ship plate
Thickness:6mm-250mm
Width:1500mm-4200mm
Length:3000mm-18000mm
Heat Treatment:Quenched and Tempered
Chemical Composition
|
DNV F420 extra high Strength Chemical Composition |
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|
Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Al |
N |
|
|
DNV F420 |
0.18 |
0.10-0.55 |
1.6 |
0.025 |
0.025 |
0.015-0.08 |
0.020 |
|
Nb |
V |
Ti |
Cu |
B |
Ni |
Mo |
|
|
0.02-0.05 |
0.04-0.10 |
0.02 |
|
0.005 |
|
|
|
Mechanical Property
|
DNV F420 extra high general strength property |
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|
Grade |
|
Mechanical Property |
Charpy V Impact Test |
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|
Thickness |
Yield |
Tensile |
Elongation |
Degree |
Energy 1 |
Energy 2 |
|
|
DNV F420 |
mm |
Min Mpa |
Mpa |
Min % |
-60 |
J |
J |
|
t≤50 |
420 |
530-680 |
18% |
28 |
42 |
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|
50＜t≤70 |
420 |
530-680 |
18% |
28 |
42 |
||
|
70＜t≤150 |
420 |
530-680 |
18% |
28 |
42 |
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|
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal |
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Other Name
DNV Grade F420 Shipbuilding steel plate,DNV Grade F420 Ship Steel plate ,DNV Grade F420 Marine Steel plate , DNV Grade F420 Steel Plate .
Additional Condition
UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.
