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  • NK B
  • NK B plate

NK Grade B,NK B

  • Steel Standard: NK (Nippon Kaiji Kyokai)
  • 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
Ship plate also named as shipbuilding plate,shipbuilding steel plate and marine plate.NK Grade B ship steel plate is a common strength ship plate which owned the minimum yield strength at 235 Mpa.When rolling steel plate NK Grade B,low temperature impacting test shall be done at zero centigree.
■ 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 NK Grade B shipbuilding structual steel:

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

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

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