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  • P355QL1 PLATE
  • P355QL1 STEEL

P355QL1

  • Steel Standard: EN 10028-6
  • Rolling Type: Pressure vessel steel plate,Boiler steel plate
  • Thickness: 6mm-350mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: Quenched and Tempered
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■ Overview
Under steel specification EN 10028-6,pressure vessel steel plate P355QL1 shall be done heat treatment with Quenching and Tempering.For impacting test,the deviating from EN 10028-1,the preparation of test pieces sample taken from middle thickness may be agree at the the time of inquiry and making purchasing orders.In this case,test temperatures and minimum impact energy values shall be agreed.Pressure vessel steel plate P355QL1 shall be done impacting test at minus 40 centi degree low temperature.
■ Full Data
Technical Requirements & Additional Services:
♦ High tension test
♦ Low temperature impacting test
♦ Simulated post-welded heat treatment (PWHT)
♦ Ultrasonic test under EN 10160,ASTM A435,A577,A578
♦ 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 P355QL1 pressure vessel steel:

Thickness (mm)
P355QL1 ≤ 50 > 50 ≤ 100 > 100
Yield strength (≥Mpa) 355 335 315
  ≤ 100 > 100
Tensile strength (Mpa) 490-630 450-590

Chemical composition for P355QL1 pressure vessel steel (Heat Analysis Max%)

Main chemical elements composition of P355QL1
C Si Mn P S B N Cr
0.16 0.40 1.50 0.020 0.010 0.005 0.015 0.30
Cu Mo Nb Ni Ti V Zr
0.30 0.25 0.05 0.50 0.03 0.06 0.05
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