NV D690 Steel Plate

NV D690 Steel Plate

NV D690 steel plate,DNV Steel Plate,DH690,NV D690 |DNV Grade D690,DNV DH690 STEEL PLATE Gnee steel is specialized in supplying DNV extra high strength steel plate in DNV Grade D690. For more information of Grade D690 steel plate, please check them in following: Crack Sensitivity: Pcm =...

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NV D690 steel plate,DNV Steel Plate,DH690,NV D690 |DNV Grade D690,DNV DH690 STEEL PLATE

Gnee steel is specialized in supplying DNV extra high strength steel plate in DNV Grade D690. For more information of Grade D690 steel plate, please check them in following: 

NV D690 extra high Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

NV D690

0.20

0.10-0.55

1.7

0.030

0.030

0.015-0.08

0.020

Nb

V

Ti

Cu

B

Ni

Mo

0.02-0.05

0.04-0.10

0.02

0.005

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】% 

NV D690 extra high general strength property

Grade

Mechanical Property

Charpy V Impact Test

Thickness

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

NV D690

mm

Min Mpa

Mpa

Min  %

-20

J

J

t≤50

690

770-940

14%

46

69

50<t≤70

690

770-940

14%

46

69

70<t≤150

690

770-940

14%

46

69

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



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