+86 371 55057610

inquiry@xsteelplate.com

  • DNV A420
  • NV A420

DNV Grade A420,NV A420

  • 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
(※ Click this button to inquiry)
■ Overview
DNV A420 steel plate is one steel grade of extra high strength shipbuilding plate which is mainly used for built hull of vessels,ship body construction.Normally when rolling of steel plate NV Grade A420,heat treatment shall be Quenching and Tempering to improve steel strength in yield and tensile points.The Charpy V impacting test shall be adopted under 0 centigrade.
■ 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 A420 shipbuilding structual steel:

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

Chemical composition for DNV Grade A420 ship steel (Heat Analysis Max%)

Main chemical elements composition of DNV Grade A420
C Si Mn P S N
0.21 0.55 1.70 0.035 0.035 0.02

Inquiry >>
Your name :
Your tel :
* Your mail :
Your company :
Your country :
* Inquiry :