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DNV A620,NV A620,A620 steel grade, DNV Grade A620,A620 steel plate

2011年3月28日 by admin

DNV A620,NV A620,A620 steel grade, DNV Grade A620,A620 steel plate

 

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

NV A420

NV D420

NV E420

NV F420

NV A460

NV A500

NV A550

NV E420

NV F420

NV D460

NV E460

NV F460

NV D500

NV E500

NV F500

NV D550

NV E550

NV F550

NV D620

NV D690

NV E690

NV F690

NV A620

NV A690

 

NV A620 steel grade.

 

NV A620 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 A620 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 A620 steel grade, please refer to the following:

NV A620 Chemical composition heat analysis

Element

NV A620  Max %

Element

NV A620  max %

C

0.21

Ni

0.40

Mn

1.70

Mo

0.08

Si

 0.10-0.55

   Al

  0.020 min

S

0.035

   Nb

0.20-0.05

P

0.035

V

0.05-0.10

Cu

0.35

Ti

0.0007-0.05

    Cr

0.20

N

 

           

NV A620 Mechanical properties,            longitudinal min impact energy

Grade

Thickness

Yield Strength

Tensile Strength

Elongation

Impact Energy

(mm)

MPa (min)

MPa

% (min)

(KV J) (min)

 

 

 

 

0 degree

NV A620

8-260

620

720-890

15

41J

Note: the impact energy under less 150mm thickness

 

If you have any need in NV A620 steel plate, please feel free to contact us soon to get a competitive price.

 

DNV A620,NV A620,A620 steel grade, DNV Grade A620, A620 steel plate

 

 

Tags: NV A620  A620 steel grade  DNV Grade A620  

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