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Gangsteel is specialized in supplying DNV extra high strength steel plate in DNV Grade A420. For more information of Grade A420 steel plate, please check them in following:
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NV A420 extra high Strength Chemical Composition |
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Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Al |
N |
|
|
0.21 |
0.10-0.55 |
1.7 |
0.035 |
0.035 |
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 |
|
|
|
Crack Sensitivity: Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
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NV A420 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 |
|
|
mm |
Min Mpa |
Mpa |
Min % |
0 |
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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Boiler steel plates| Alloy steel plates| High strength plate| Carbon steel plate| Stainless steel plate
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Equivalent steel grade of NV A420 |
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|
AB/AQ43 |
GL-A420 |
LR/AH42 |
BV/A420 |
CCS/A420 |
K A43 |
R A43 |
RI/A420 |
Other steel grade NV E, NV F36, NV E420
If you need more stock steel plates in shipbuilding steel plate, please click warehouse sizes.
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General Strength |
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High Strength |
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Extra Strength |
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