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  • P355M PLATE
  • P355M STEEL

P355M

  • Steel Standard: EN 10028-5
  • Rolling Type: Pressure vessel steel plate,Boiler steel plate
  • Thickness: 6mm-350mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: TMCP
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■ Overview
With minimum 355 Mpa Yield strength,Pressure vessel steel plate P355M have to be under thermomechanically rolled when producing.As for the named of these steel plate P355M,P is short for steel for pressure vessels and boilers,the number 355 stand for the minimum yield point should be 355 Mpa for this steel,M is short for the heat treatment of thermomechanically rolling and do low temperature impacting test at minus 20 centi degree. 
■ 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 P355M pressure vessel steel:

Thickness(mm) Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
T≤16 355 450-610 22
16<T≤40 355
40<T 345

Chemical composition for P355M pressure vessel steel (Heat Analysis Max%)

Main chemical elements composition of P355M
C Si Mn P S Al (total) N
0.14 0.50 1.60 0.025 0.020 ≥0.020 0.015
Mo Nb Ni Ti V Cr+Cu+Mo
0.20 0.05 0.50 0.05 0.10 0.60
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