Gangsteel is specialized in supplying RINA extra high strength steel plate in RINA Grade F420. For more information of Grade F420 steel plate, please check them in following:

 

RI/F420 extra high Strength Chemical Composition in Tempering and Quenching

 

Element

RINA F420 Max %

Element

RINA F420  Max %

C

0.18

Ni

2.0

Mn

1.60

Mo

1.0

Si

0.10-0.55

Al

0.015 min

S

0.025

Nb

0.06

P

0.020

V

0.10

Cu

1.5

Ti

0.20

Cr

2.0

N

0.020

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】%

 

 

RI/F420 extra high strength property in Tempering and Quenching

 

Grade

Thickness

Yield Strength

Tensile Strength

Elongation

Impact Energy

(mm)

MPa (min)

MPa

% (min)

(KV J) (min)

 

 

 

 

-60 degree

RINA F420

8-260

420

530-680

18

28J

Note: the impact energy under less 150mm thickness; longitudinal min impact energy

 

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

 

 

 

Equivalent steel grade of RI/F420

DNV

GL

LR

BV

ABS

NK

KR

CCS

NV F420

GL-F420

LR/FH42

BV/F420

ABS/FQ43

K F43

R F43

CCS/F420

 

 

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

The related steel grade:  RI/A420,  RI/D420,  RI/E420

 

 

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