Gangsteel is specialized in supplying KR extra strength steel plate in KR Grade R D70. For more information of Grade R D70 steel plate, please check them in following:

 

KR/R D70high Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

KR/R D70

0.20

0.55

1.70

0.030

0.030

-

0.020

Nb

V

B

Cu

Cr

Ni

Mo

-

0.10

0.006

0.50

1.20

-

0.60

 

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 D70 extra strength property 

Grade

Mechanical Property

Charpy V Impact Test

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

Min Mpa

Mpa

Min  %

       -20

69

46

KR/R D70

690

770-940

14

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 D70

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV D690

GL-D690

LR/DH69

BV/D690

CCS/D690

K D70

R D70

RI/D70

 

 

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

 

 

The related steel grade RI/A690   RI/D690   RI/E690  RI/F690

 

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