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  • LR Grade F620
  • LR F620

LR Grade F620,LR F620

  • 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

LR F620 shipbuilding steel plate and sheet which is the similar with NV Grade F620,GL Grade F620,NK F63,BV Grade F620,CCS Grade F620,RINA Grade F620,KR FQ63 which are the same and owned higher steel strength at minimum yield strength 620 Mpa and with tensile strength within 720-890 Mpa.Done low temperature impacting test for LR F620 under minus 60 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 F620 shipbuilding structual steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Impacting test
620 720-890
-60 Centigrade

Chemical composition for LR Grade F620 ship steel (Heat Analysis Max%)

Main chemical elements composition of LR Grade F620
C Si Mn P S N
0.18 0.55 1.60 0.025 0.025 0.02

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