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GB/T8162 Q345D Steel Pipe steel plate

GB/T8162 Q345D Steel Pipe

GB/T8162 Q345D Steel Pipe Specification:
Standard: GB/T8162
Dimension: Out Diameter: 114mm-914mm
Wall Thickness: 4mm-40mm  

Q345D Steel pipe chemical composition:

Grade

C %

Si %

Mn %

Cr % max

Ni % max

Cu % max

P % max

S % max

Q345D

< 0.18

< 0.50

< 1.70

0.30

0.50

0.30

0.30

0.30

Q345D Steel pipe Mechanical Property:

Steel grade

Tensile strength Rm/MPa

Yield Strength Rel/MPa

Break elongation A%

Q345D

470-630

>345

21

GB/T8162 Q345D Steel Application:
Q345D Steel pipe is mainly used in ships, boilers, pressure vessels, oil storage tanks, bridges, power station equipment, up welding structure lifting transport machinery and other higher load.

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