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  • DNV E420
  • NV E420

DNV Grade E420,NV E420

  • Steel Standard: DNV (Det Norske Veritas)
  • Rolling Type: Extra high strength ship plate
  • Thickness: 6mm-250mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: Quenched and Tempered
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■ Overview
Steel DNV E420 is mainly used to building ships,so we also call this steel as DNV Grade E420 ship plate,DNV E420 shipbuilding steel plate,DNV E420 marine steel plate or NV E420 shipbuilding plate.Anyway these DNV E420 plates are the same and owned higher steel strength at minimum yield strength 420 Mpa and with minimum tensile strength 530 Mpa.Done low temperature impacting test for DNV E420 under 40 centigree when rolling.
■ 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 E420 shipbuilding structual steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Impacting test
420 530-680
-40 Centigrade

Chemical composition for DNV Grade E420 ship steel (Heat Analysis Max%)

Main chemical elements composition of DNV Grade E420
C Si Mn P S N
0.20 0.55 1.70 0.030 0.030 0.02

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