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  • P355QH PLATE
  • P355QH STEEL

P355QH

  • 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
EN 10028-6 P355QH pressure vessel steel plate,the necessary technical requirements shall contain low temperature impacting test,heat treatment under Quenched and Tempered,Ultrasonic test or examation at least according to ASTM A435/A435M or EN 10160 S0E2.Besides these technicals,boiler steel plate P355QH have to be done high temperature tensile test and low temperature impacting test under minus 20 centi degree.The end users have to indicate their needed temperature in this test when they release their purchase order to us.  
■ 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 P355QH pressure vessel steel:

Thickness (mm)
P355QH ≤ 50 > 50 ≤ 100 > 100
Yield strength (≥Mpa) 355 335 315
  ≤ 100 > 100
Tensile strength (Mpa) 490-630 450-590

Chemical composition for P355QH pressure vessel steel (Heat Analysis Max%)

Main chemical elements composition of P355QH
C Si Mn P S B N Cr
0.16 0.40 1.50 0.025 0.015 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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