Gangsteel is specialized in supplying NK extra strength steel plate in NK Grade K A40. For more information of Grade K A40 steel plate, please check them in following:

 

NK/K A40high Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

NK/K A40

0.18

0.50

0.90-1.6

0.035

0.035

0.015

 

Nb

V

Ti

Cu

Cr

Ni

Mo

0.02-0.05

0.05-0.10

0.02

0.35

0.2

0.4

0.08

 

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 A40 high strength property 

Grade

Mechanical Property

Charpy V Impact Test

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

Min Mpa

Mpa

Min  %

        0

39

26

NK/K A40

390

510-650

20

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 A40

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV A40

GL A40

LR/A40

BV/AH40

CCS/A40

K A40

R AH40

RI A40

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

 

 The relate steel grade LR/AH40  LR/DH40   LR/EH40   

 

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