Gangsteel is specialized in supplying NK extra strength steel plate in NK Grade K A56. For more information of Grade K A56 steel plate, please check them in following:

 

NK/K A56 extraStrength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

NK/K A56

0.21

0.55

1.70

0.035

0.035

-

0.020

Nb

V

Ti

Cu

Cr

Ni

Mo

-

-

-

-

-

-

-

 

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】%

 

 

NK/K A56 extra strength property 

Grade

Mechanical Property

Charpy V Impact Test

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

Min Mpa

Mpa

Min  %

         0

55

37

NK/K A56

550

670-830

16

Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

 

Boiler steel plates| Alloy steel plates| High strength plate| Carbon steel plate| Stainless steel plate

 

 

 

Equivalent steel grade of NK/K A56

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV A550

GL A550

LR/AH55

BV/A550

CCS/A550

K A56

R A56

RI A550

If you need more stock steel plates in shipbuilding steel plate, please click warehouse sizes

 

 The other steel grade BV/A550  BV/D550  BV/E550   BV/F550

 

 

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