NK F70 are high-strength steel plates specifically designed for marine applications. These grades of steel are renowned for their exceptional mechanical properties and chemical composition, making them ideal for use in the construction of ships and offshore structures.
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NK F70 extraStrength Chemical Composition |
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Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
B |
N |
|
|
NK/K F70 |
0.18 |
0.55 |
1.60 |
0.025 |
0.025 |
0.006 |
0.020 |
|
Nb |
V |
Ti |
Cu |
Cr |
Ni |
Mo |
|
|
- |
0.10 |
- |
0.50 |
1.20 |
- |
0.60 |
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In terms of chemical composition, NK FQ70 and NK F70 steels contain precise percentages of carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, copper, nitrogen, vanadium, titanium, aluminum, and boron. This balanced composition ensures high strength, good weldability, and corrosion resistance, crucial factors in marine environments.
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NK F70 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 |
69 |
46 |
|
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NK/K F70 |
690 |
770-940 |
14 |
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Note: Energy 1 is transverse impact test, Energy 2 is longitudinal |
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Equivalent steel grade of NK/K F70 |
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DNV |
GL |
LR |
BV |
CCS |
NK |
KR |
RINA |
|
NV F690 |
GL F690 |
LR/FH69 |
BV/F690 |
CCS/F690 |
K F70 |
R F70 |
RI F690 |
NK Grade F70 Shipbuilding Steel Plate Other Name
NK Grade F70 Shipbuilding steel plate,NK Grade F70 Ship Steel plate ,NK Grade F70 Marine Steel plate , NK Grade F70 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.
