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  • LR D
  • LR Grade D

LR Grade D,LR D

  • Steel Standard: LR (Lloyd’s Register)
  • 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
LR Grade D shipbuilding steel plate is mainly used to build vessels and ships which are sailing in cold ocean waters belows minus 20 centigree.Xinsteel foucs on rolling wide heavy shipbuilding plate,up to today,we can roll the maximum thickness for shipbuilding plate LR Grade D shall be 300mm,and the maximum width shall be till 4200mm.This owned world-class property.For the thickness above 40mm,our engineers suggest customers accept doing Normalized heat treatment for LR Grade D steel plates.
■ 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 D shipbuilding structual steel:

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

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

Main chemical elements composition of LR Grade D
C Si Mn P S
0.21 0.10-0.35 0.60 0.035 0.035

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