Gangsteel is specialized in supplying NK extra strength steel plate in NK Grade K D51. For more information of Grade K D51 steel plate, please check them in following:

 

NK/K D51 extraStrength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

NK/K D51

0.20

0.55

1.70

0.030

0.030

-

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 D51 extra strength property 

Grade

Mechanical Property

Charpy V Impact Test

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

Min Mpa

Mpa

Min  %

       -20

50

33

NK/K D51

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 D51

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV D500

GL D500

LR/DH50

BV/D50

CCS/D500

K D51

R D51

RI D500

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

 

 

 

The related steel grades NK K A51  NK K E51  NK K F51

 

 

 

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