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  • DNV B
  • NV B

DNV Grade B,NV B

  • Steel Standard: DNV (Det Norske Veritas)
  • Rolling Type: Shipbuilding steel plate,Common strength ship plate
  • Thickness: 3mm-300mm
  • Width: 1200mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: As Rolled/Control-rolled/TMCP/Normalised
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■ Overview
DNV Grade B ship plate mainly used to build vessels which are sailing in common ocean waters at about zero centigree.Xinsteel foucs on rolling wide heavy shipbuilding plate of DNV Grade B,up to today,we can roll the maximum thickness for shipbuilding plate DNV Grade B shall be 300mm,and the maximum width shall be till 4200mm.This owned world-class property.For the thickness above 40mm,our engineers suggest customers accept doing Normalized heat treatment for DNV Grade B steel plates.
■ Full Data
Technical Requirements & Additional Services:
♦ High tension test
♦ Z-Test (Z15,Z25,Z35)
♦ Low temperature impacting test
♦ Ultrasonic test under ASTM A435,A577,A578
♦ Cetificated by ABS,LR,GL,BV,DNV,KR,NK,CCS,RINA
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands 
■ Techicals
Mechnical property for DNV Grade B shipbuilding structual steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
235 400-520 200mm 50mm
21 24

Chemical composition for DNV Grade B ship steel (Heat Analysis Max%)

Main chemical elements composition of DNV Grade B
C Si Mn P S
0.21 0.35 0.80 0.035 0.035
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