Q345D

GB/T1591 Q345D High strength low alloy structural steels
Thickness:3mm-500mm
Width:1000mm-4200mm
Length:3000mm-18000mm
Heat Treatment:As rolled/Control-rolled/Normalised
GB/T1591 Q345D steel shall be done charpy V-notch impacting test under minus 20 centigrade.Many container manufacturers adpots these high tension strength to make offshore containers which can be used in deep oceans.
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

Mechnical property for Q345D low alloy structural steel:

Thickness (mm)
Q345D ≤ 16 > 16 ≤ 35 > 35 ≤ 50 >50
Yield strength (≥Mpa) 345 325 295 275
Tensile strength (Mpa) 470-630

Chemical composition for Q345D low alloy structural steel (Heat Analysis Max%)

Main chemical elements composition of Q345D
C Si Mn P S V Nb Ti Al (min.)
0.18 0.55 1.00-1.60 0.030 0.030 0.02-0.15 0.015-0.060 0.02-0.20 0.015
Get In Touch With

We receive enquiries in English, Español (Spanish), Русский язык (Russian), Français (French) and العربية (Arabic). Our professional team will reply to you within 24 Hour. Please feel free to contact us!