LR/DH50 Steel Plate

LR/DH50 Steel Plate

LR/DH50 steel plate,LR steel plate,DH50,LR/DH50,LR Grade DH50,LR DH50 STEEL PLATE Gnee steel is specialized in supplying LR extra strength steel plate in LR Grade DH50. For more information of Grade DH50 steel plate, please check them in following: Crack Sensitivity: Pcm =...

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LR/DH50 steel plate,LR steel plate,DH50,LR/DH50,LR Grade DH50,LR DH50 STEEL PLATE



Gnee steel is specialized in supplying LR extra strength steel plate in LR Grade DH50. For more information of Grade DH50 steel plate, please check them in following: 

LR/DH50 extra high Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

LR/DH50

0.20

0.55

1.70

0.030

0.030

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/DH50 extra high strength property

Grade

Mechanical Property

Charpy V Impact Test

Thickness

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

LR/DH50

mm

Min Mpa

Mpa

Min  %

-20

J

J

t≤50

500

610-770

18%

33

50

50<t≤70

500

610-770

18%

33

50

70<t≤100

500

610-770

18%

33

50

Note: Energy 1 is transverse impact test, Energy 2 is longitudinal


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