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  • LR Grade F690
  • LR F690

LR Grade F690,LR F690

  • 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

Quenched and tempered LR F690 shipbuilding steel plate owned the higher tensile strength within 770-940 Mpa,and the minimum yield point shall be 690 Mpa.Class F690 indicates the low temperature impacting test shall be done under minus 60 centigree.Xinsteel exported 500,000 tons higher strength shipbuilding steel materials all over the world especially southeast asia shipyards each year.

■ 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 F690 shipbuilding structual steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Impacting test
690 770-940
-60 Centigrade

Chemical composition for LR Grade F690 ship steel (Heat Analysis Max%)

Main chemical elements composition of LR Grade F690
C Si Mn P S N
0.18 0.55 1.60 0.025 0.025 0.02

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