DNV Grade E420 steel plate is mainly used to building ships,so we also call this steel as DNV Grade E420 ship plate,DNV E420 shipbuilding steel plate,DNV E420 marine steel plate or NV E420 shipbuilding plate.Anyway these DNV E420 plates are the same and owned higher steel strength at minimum yield strength 420 Mpa and with minimum tensile strength 530 Mpa.Done low temperature impacting test for DNV E420 under 40 centigree when rolling.
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
Technical Requirements & Additional Services:
High tension test
Z-Test (Z15,Z25,Z35)
Low temperature impacting test
Ultrasonic test under ASTM A435,A577,A578
Cetificated by ABS,LR,GL,BV,DNV,KR,NK,CCS,RINA
Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
Shot blasting and Painting,Cutting and welding as per end user's demands
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DNV E420 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 E420 |
0.20 |
0.10-0.55 |
1.7 |
0.030 |
0.030 |
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 |
|
|
|
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DNV E420 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 E420 |
mm |
Min Mpa |
Mpa |
Min % |
-40 |
J |
J |
|
t≤50 |
420 |
530-680 |
18% |
28 |
42 |
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50＜t≤70 |
420 |
530-680 |
18% |
28 |
42 |
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|
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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