LR/DH40 Steel Plate

LR/DH40 Steel Plate

LR/DH40 steel plate,LR steel plate,DH40,LR/DH40|LR Grade DH40,LR DH40 STEEL PLATE Gnee steel is specialized in supplying LR high strength steel plate in LR Grade DH40. For more information of Grade DH40 steel plate, please check them in following: Crack Sensitivity: Pcm =...

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LR/DH40 steel plate,LR steel plate,DH40,LR/DH40|LR Grade DH40,LR DH40 STEEL PLATE

Gnee steel is specialized in supplying LR high strength steel plate in LR Grade DH40. For more information of Grade DH40 steel plate, please check them in following: 

LR/DH40 high Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

LR/DH40

0.18

0.05

0.9-1.6

0.035

0.035

0.015


Nb

V

Ti

Cu

Cr

Ni

Mo

0.02-0.05

0.03-0.10

0.02

0.35

0.20

0.40

0.08

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/DH40 high strength property

Grade


Mechanical Property

Charpy V Impact Test

Thickness

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

LR/DH40

mm

Min Mpa

Mpa

Min  %

-20

J

J

t≤50

390

510-650

20%

26

39

50<t≤70

390

510-650

20%

31

46

70<t≤100

390

510-650

20%

37

55

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


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