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  • Q370R steel
  • Q370R plate

Q370R

  • Steel Standard: GB 713
  • Rolling Type: Boiler steel plate,Pressure vessel steel plate
  • Thickness: 6mm-450mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: Normalised
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■ Overview
High strength boiler steel plate Q370R shall be done Normalized heat treatment normally when rolling.The ultrasonic examination is necessary for all pressure vessel steel plates.The ultrasonic test grade and standard can be choosed end users when making orders.
■ Full Data
Technical Requirements & Additional Services:
♦ High tension test
♦ Cutting and welding as per end user’s demands
♦ Simulated post-welded heat treatment (PWHT)
♦ Rolling under standard NACE MR-0175 (HIC+SSCC)
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
■ Techicals

Mechnical property for Q370R Pressure vessel steel:

Thickness (mm)
Q370R > 3 ≤ 16 > 16 ≤ 36 > 36 ≤ 60 >60 ≤ 100 >100 ≤ 150 >150
Yield strength (≥Mpa) 370 360 340 340 340 340
Tensile strength (Mpa) 530-630 520-620

Chemical composition for Q370R Pressure vessel steel (Heat Analysis Max%)

Main chemical elements composition of Q370R
C Si Mn P S Nb
0.18 0.55 1.20-1.60 0.025 0.015 0.015-0.050

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