wholesale square hollow section tube 1.size: 2-3/8"-13-3/8" 2.outside diameter 60-800mm 3.wall thickness4-13mm...

wholesale square hollow section tube

1.size: 2-3/8"-13-3/8" 2.outside diameter 60-800mm 3.wall thickness4-13mm... black / annealed

Chemical Composition:

Hollow Section
GRADE	CHEMICAL COMPOSITION					MECHANICAL PROPERTIES
	C	Si	Mn	S	P	TENSILE STRENGTH	YIELD STRENGTH	AGT
						(Mpa)	(Mpa)	%
Q235	0.09-0.15	≤0.3	0.3-0.55	≤0.05	≤0.045	≥235	335-450	≥33
Q345B	≤0.20	≤0.55	1.00-1.60	≤0.040	≤0.040	470-630	345	≥21

 

Square and Rectangular Pipe Uses: Used for machinery, processing, structure building, automobile manufacturing, shipbuilding, electric power Steel Grade: St 37-2,St 52-3, Q195, Q235, Q345   We can also supply seamless square and rectangular pipe as request .

wholesale square hollow section tube