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  • Q390A PLATE
  • Q390A STEEL

Q390A

  • Steel Standard: GB/T1591
  • Rolling Type: High strength low alloy structural steels
  • Thickness: 6mm-500mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: As rolled/Control-rolled/Normalised
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■ Overview
Structural steel plate Q390A is mainly used for manufacturing the plants of factory ,the common constructure and construction machinery and equipment.The tensile strength of low alloy steel plate Q390A is within 490-650 Mpa,and the minimum yield strength is 390Mpa for thickness equal and belows 16mm.
■ Full Data
Technical Requirements & Additional Services:
♦ Low temperature impacting test
♦ Cutting and welding as per end user’s demands
♦ More striction on some chemical elements contains
♦ 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 Q390A low alloy structural steel:

Thickness (mm)
Q390A ≤ 16 > 16 ≤ 35 > 35 ≤ 50 >50
Yield strength (≥Mpa) 390 370 350 330
Tensile strength (Mpa) 490-650

Chemical composition for Q390A low alloy structural steel (Heat Analysis Max%)

Main chemical elements composition of Q390A
C Si Mn P S V Nb Ti Cr Ni
0.20 0.55 1.00-1.60 0.045 0.045 0.02-0.20 0.015-0.060 0.02-0.20 0.30 0.70

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