LR/FH55 Steel Plate

LR/FH55 Steel Plate

LR/FH55 steel plate,LR steel plate,FH55,LR/FH55|LR Grade FH55,LR FH55 STEEL PLATE Gnee steel 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: Crack Sensitivity: Pcm =...

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LR/FH55 steel plate,LR steel plate,FH55,LR/FH55|LR Grade FH55,LR FH55 STEEL PLATE

Gnee steel 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


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