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  • Q345A PLATE
  • Q345A STEEL

Q345A

  • Steel Standard: GB/T1591
  • Rolling Type: High strength low alloy structural steels
  • Thickness: 2mm-500mm
  • Width: 1000mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: As rolled/Control-rolled/Normalised
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■ Overview
GB/T1591 Q345 includes five different steel grades as Q345A,Q345B,Q345C,Q345D and Q345E.These high tension steel grades owned the same mechincal properties,minimum yield strength at 345Mpa and tensile strength within 470-630Mpa.
 
■ 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 Q345A low alloy structural steel:

Thickness (mm)
Q345A ≤ 16 > 16 ≤ 35 > 35 ≤ 50 >50
Yield strength (≥Mpa) 345 325 295 275
Tensile strength (Mpa) 470-630

Chemical composition for Q345A low alloy structural steel (Heat Analysis Max%)

Main chemical elements composition of Q345A
C Si Mn P S V Nb Ti
0.20 0.55 1.00-1.60 0.045 0.045 0.02-0.15 0.015-0.060 0.02-0.20
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