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  • Q345B PLATE
  • Q345B STEEL

Q345B

  • 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
Steel grade Q345B is the most common used as high strength low alloy structural steel in industry area.Xinsteel can offer steel coils,steel plates,angles,channels for Q345B materials.The equivalent steel grade with Q345B are EN 10025-2 S355JR,ASTM A572/A572 A572 Grade 50 and DIN 17100 St52-3.
 
■ 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 Q345B low alloy structural steel:

Thickness (mm)
Q345B ≤ 16 > 16 ≤ 35 > 35 ≤ 50 >50
Yield strength (≥Mpa) 345 325 295 275
Tensile strength (Mpa) 470-630

Chemical composition for Q345B low alloy structural steel (Heat Analysis Max%)

Main chemical elements composition of Q345B
C Si Mn P S V Nb Ti
0.20 0.55 1.00-1.60 0.040 0.040 0.02-0.15 0.015-0.060 0.02-0.20
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