Hot sell China standard GB/T1591 Q345D low alloy high-strength steel. China standard 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.
GB/T1591 Q345D steel Mechnical property:
Thickness (mm) |
||||
|
Q345D |
≤ 16 |
> 16 ≤ 35 |
> 35 ≤ 50 |
>50 |
|
Yield strength (≥Mpa) |
345 |
325 |
295 |
275 |
|
Tensile strength (Mpa) |
470-630 |
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GB/T1591 Q345D steel Chemical composition:
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 |
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