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  • LR Grade AH40
  • LR AH40

LR Grade AH40,LR AH40

  • Steel Standard: LR (Lloyd’s Register)
  • 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
Steel plate LR Grade AH40 is mainly used to building ships and vessels,so we also call this steel as LR Grade AH40 ship plate,LR Grade AH40 shipbuilding steel plate,LR Grade AH40 marine steel plate or LR Grade AH40 shipbuilding plate.Anyway these LR Grade AH40 shipbuilding steel plates are the same and owned higher steel strength at minimum yield strength 390 Mpa and with minimum tensile strength 510 Mpa.Done low temperature impacting test for LR 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 LR Grade AH40 shipbuilding structual steel:

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

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

Main chemical elements composition of LR 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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