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  • DNV AH40
  • NV A40

DNV Grade AH40,NV A40

  • Steel Standard: DNV (Det Norske Veritas)
  • Rolling Type: Shipbuilding steel plate,High tension ship plate
  • Thickness: 3mm-250mm
  • Width: 1200mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: TMCP/Normalised
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■ Overview
DNV Grade AH40 shipbuilding steel plate and sheet which is the similar with ABS Grade AH40,LR Grade AH40,GL Grade AH40,NK Grade AH40,BV Grade AH40,CCS Grade AH40,RINA Grade AH40,KR Grade AH40 which are the same and owned higher steel strength at minimum yield strength 390 Mpa and with tensile strength within 510-650 Mpa.Done low temperature impacting test for DNV Grade AH40 under zero 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 AH40 shipbuilding structual steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
390 510-650 200mm 50mm
19 22

Chemical composition for DNV Grade AH40 ship steel (Heat Analysis Max%)

Main chemical elements composition of DNV Grade AH40
C Si Mn P S Al (acid) min. Nb
0.18 0.10-0.50 0.90-1.60 0.035 0.035 0.015 0.02-0.05
V Ti Cu Cr Ni Mo  
0.05-0.10 0.02 0.35 0.20 0.40 0.08  

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