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Gangsteel is specialized in supplying RINA extra high strength steel plate in RINA Grade F620. For more information of Grade F620 steel plate, please check them in following:

 

RI/F620 extra high Strength Chemical Composition in Tempering and Quenching

 

Element

RINA F620  Max %

Element

RINA F620  Max %

C

0.18

Ni

0.80

Mn

1.60

Mo

0.08

Si

0.10-0.55

Al

0.020 min

S

0.025

Nb

0.20-0.05

P

0.025

V

0.05-0.10

Cu

0.35

Ti

0.0007-0.05

Cr

0.20

N

0.009

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/F620 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 F620

8-260

620

720-890

15

41J

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/F620

DNV

GL

LR

BV

ABS

NK

KR

CCS

NV F620

GL-F620

LR/FH62

BV/F620

ABS/FQ63

K F63

R F63

CCS/F620

 

 

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

 

The related steel grade: RI/A620, RI/D620, RI/E620

 

 

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