Gangsteel is specialized in supplying NK extra strength steel plate in NK Grade K A51. For more information of Grade K A51 steel plate, please check them in following:

 

NK/K A51 extraStrength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

NK/K A51

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 A51 extra strength property 

Grade

Mechanical Property

Charpy V Impact Test

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

Min Mpa

Mpa

Min  %

         0

50

33

NK/K A51

500

610-770

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 A51

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV A500

GL A500

LR/AH50

BV/A500

CCS/A500

K A51

R A51

RI A500

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

The relate steel grade GL-A500  GL-D500  GL-E500  GL-F500

 

 

 

 

 

 

 

Other Products