NK F63 is an NK-certified, high-strength shipbuilding steel plate designed for marine and offshore structural applications, such as ship hulls and offshore structures. It offers excellent yield and tensile strength, good toughness, and corrosion resistance, achieved through controlled heat treatment like normalized rolling. The steel's precise chemical composition ensures it can withstand the rigorous demands of marine environments.
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NK F63 extraStrength Chemical Composition |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
B |
N |
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|
NK/K F63 |
0.18 |
0.55 |
1.60 |
0.025 |
0.025 |
0.006 |
0.020 |
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Nb |
V |
Ti |
Cu |
Cr |
Ni |
Mo |
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|
- |
0.10 |
- |
0.50 |
1.00 |
- |
0.60 |
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NK F63 extra strength property |
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Grade |
Mechanical Property |
Charpy V Impact Test |
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Yield |
Tensile |
Elongation |
Degree |
Energy 1 |
Energy 2 |
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|
Min Mpa |
Mpa |
Min % |
-60 |
62 |
41 |
|
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NK/K F63 |
620 |
720-890 |
15 |
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Note: Energy 1 is transverse impact test, Energy 2 is longitudinal |
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Equivalent steel grade of NK F63 |
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DNV |
GL |
LR |
BV |
CCS |
NK |
KR |
RINA |
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NV F20 |
GL F620 |
LR/FH62 |
BV/F620 |
CCS/F620 |
K F63 |
R F63 |
RI F620 |
NK Grade F63 Shipbuilding Steel Plate Other Name
NK Grade F63 Shipbuilding steel plate,
NK Grade F63 Ship Steel plate ,
NK Grade F63 Marine Steel plate ,
NK Grade F63 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.
