DNV D690 Shipbuilding steel plate

Come from:United Iron and Steel Limited  Editor:United Iron and stee Access:

DNV D690 Shipbuilding steel plate
 
Unitedsteel Mill is specialized at super thick steel plate which beyond nine classification society approval. We have cooperated with LR, DNV, CCS, ABS, BV, GL, NK, KR, and RINA to do the third party inspection to promise quality for our customers in many years.
D420,E420,F420,A500,D500,E500,F500,D460,A460,E460,F460,A550,D550,E550,F550,A60,D620,E620,F620,A690,D690,E690,F690
 
NV D690 is applied to extra high strength steels, which is defined as steel with specified min yield stress of 420Mpa. The max yield is 690Mpa in NV D690.
 
NV D690 steel grade shall be killed and find grain treated. Steel grade of strength levels up to and including 500Mpa should be supplied in Normalized, TM or QT condition. Steel grade of strength levels above 500Mpa shall be supplied in TM or QT delivery condition.
 
For more information in NV D690 steel grade, please refer to the following:
NV D690 Chemical composition heat analysis
Element NV D690  Max % Element NV D690  max %
C 0.20 Ni 0.40
Mn 1.70 Mo 0.08
Si  0.10-0.55    Al   0.020 min
S 0.030    Nb 0.20-0.05
P 0.030 V 0.05-0.10
Cu 0.35 Ti 0.0007-0.05
    Cr 0.20 N  
           
NV D690 Mechanical properties,            longitudinal min impact energy
Grade Thickness Yield Strength Tensile Strength Elongation Impact Energy
(mm) MPa (min) MPa % (min) (KV J) (min)
        -20 degree
NV D690 8-260 690 770-940 14 46J
Note: the impact energy under less 150mm thickness
 
If you have any need in NV D690 steel plate, please feel free to contact us soon to get a competitive price.