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DNV F550,NV F550,F550 steel grade, DNV Grade F550,F550 steel plate

 

Adopt standard: DNV Extra high strength steel plate
DNV Extra High Grade:

 

NV F550 steel grade.

 

NV F550 is applied to extra high strength steels, which is defined as steel with specified min yield stress of 420Mpa. The max yield is 690Mpa in NV A690.

 

NV F550 steel grade shall be killed and find grain treated. Steel grade of strength levels up to and including 500Mpa should be supplied in Normalized, TM or QT condition. Steel grade of strength levels above 500Mpa shall be supplied in TM or QT delivery condition.

 

Gangsteel is specialized in Super thickness steel grade. We have much experience in manufacture and exporting extra high strength steel grade.

For more information in NV F550 steel grade, please refer to the following:

NV F550 Chemical composition heat analysis

Element

NV F550  Max %

Element

NV F550  max %

C

0.18

Ni

0.80

Mn

1.60

Mo

0.08

Si

 0.10-0.55

   Al

  0.020 min

S

0.025

   Nb

0.20-0.05

P

0.025

V

0.05-0.10

Cu

0.35

Ti

0.0007-0.05

    Cr

0.20

N

0.009

           

NV F550 Mechanical properties,            longitudinal min impact energy

Grade

Thickness

Yield Strength

Tensile Strength

Elongation

Impact Energy

(mm)

MPa (min)

MPa

% (min)

(KV J) (min)

 

 

 

 

-60 degree

NV F550

8-260

550

670-830

16

37J

Note: the impact energy under less 150mm thickness

 

If you have any need in NV F550 steel plate, please feel free to contact us soon to get a competitive price.

 

DNV F550,NV F550,F550 steel grade, DNV Grade F550, F550 steel plate