GB/T1591 Q345D High strength low alloy structural steels
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:
|Q345D||≤ 16||> 16 ≤ 35||> 35 ≤ 50||>50|
|Yield strength (≥Mpa)||345||325||295||275|
|Tensile strength (Mpa)||470-630|
|Main chemical elements composition of Q345D|
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