Gangsteel is specialized in supplying LR extra strength steel plate in LR Grade FH55. For more information of Grade FH55 steel plate, please check them in following:

 

LR/FH55 extra high Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

LR/FH55

0.18

0.55

1.60

0.025

0.025

0.015

0.020

Nb

V

Ti

Cu

Cr

Ni

Mo

0.02-0.05

0.03-0.10

0.02

 

 

 

 

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】%

 

 

 

LR/FH55 extra high strength property

Grade

 

Mechanical Property

Charpy V Impact Test

Thickness

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

LR/FH55

mm

Min Mpa

Mpa

Min  %

-60

J

J

t≤50

550

670-830

18%

37

55

50<t≤70

550

670-830

18%

37

55

70<t≤100

550

670-830

18%

37

55

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 LR/FH55

DNV

GL

ABS

BV

CCS

NK

KR

RINA

NV F550

GL-F550

AB/FQ56

BV/F550

CCS/F550

K F56

R F56

RI/F550

 

 

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

 

LR Steel Plate Grade Supplier

General Strength

LR/A

LR/B

LR/D

LR/E

High Strength

LR/AH32

LR/DH32

LR/EH32

LR/FH32

LR/AH36

LR/DH36

LR/EH36

LR/FH36

LR/AH40

LR/DH40

LR/EH40

LR/FH40

Extra Strength

LR/AH42

LR/DH42

LR/EH42

LR/FH42

LR/AH46

LR/DH46

LR/EH46

LR/FH46

LR/AH50

LR/DH50

LR/EH50

LR/FH50

LR/AH55

LR/DH55

LR/EH55

LR/FH55

LR/AH62

LR/DH62

LR/EH62

LR/FH62

LR/AH69

LR/DH69

LR/EH69

LR/FH69

 

 

 

 

 

Other Products