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  • LR Grade D620
  • LR D620

LR Grade D620,LR D620

  • Steel Standard: LR (Lloyd’s Register)
  • 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

Ship steel plate LR D620 is the Hull structural steel,with it's good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and welding properties.Shipbuilding steel plate LR D620 mainly be used in about minus 20 centigree ocean situiation. LR D620 steel plate is done low temperature impacting test when rolling in our steel mill.Xinsteel are rolling thousands tons of shipbuilding plate LR D620 with LR agency endorsed and stamped every month,and transported to domestic shipyards to use and export to overseas shipyards.

■ 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 D620 shipbuilding structual steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Impacting test
620 720-890
-20 Centigrade

Chemical composition for LR Grade D620 ship steel (Heat Analysis Max%)

Main chemical elements composition of LR Grade D620
C Si Mn P S N
0.20 0.55 1.70 0.030 0.030 0.02

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