Gangsteel is specialized in supplying KR high strength steel plate in KR Grade R A40. For more information of Grade R A40 steel plate, please check them in following:

 

KR/R A40 high Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

KR/R 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

0.09-1.60

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】%

 

 

KR/R A40 generalstrength property

Grade

 

Mechanical Property

Charpy V Impact Test

Thickness

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

KR/R A40

mm

Min Mpa

Mpa

Min  %

0

 

-

t≤50

390

510-660

20

39

26

50<t≤70

46

31

70<t≤100

55

37

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

 

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

 

 

 

Equivalent steel grade of KR/R A40

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV A40

GL-A40

LR/AH40

BV/AH40

CCS/A40

K AH40

R A40

RI/A40

 

 

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

 

 

 

The related steel grade AB/AH40   AB/DH40   AB/EH40  AB/FH40

Other Products