Hollow Sections Pipes Of Building Material

Brand :Friend

Product origin :Tianjin, China

Steel hollow section can be mainly divided into round hollow section, rectangular hollow section and square hollow section. Rectangular and square hollow section are widely used in various fields such as construction or building, low pressure liquid delivery, engineering, fencing,greenhouse etc.
Surface of steel tube generally are black or galvanized, galvanized Steel tube has good features of corrosion resistance, anti-rust, acid resistance, which largely extend its service life.

Hollow Section Pipes of building material

1. Product details

Description	Square & Rectangular Hollow Section
Specification	Size:2020 - 400400 Thickness: 0.6mm-10mm Length:1-12m


Material	Q195, Q235, Q345, S235 ,S355, ASTM A500, STK500, A53 GR A/B

Standard	GB T3094, EN10210, ASTM A500
Surface	Hot dipped galvanized pre galvanized black, oiled
Zinc Coating	180-600g Hot dipped galvanized 40-120g for Pre galvanized
Hollow shape	square or rectangular
Manufacture method	hot rolled or cold rolled

2. Main material of steel tube: Q195/Q235/Q345

Elements	Chemical Composition%					Mechanical Property
Material	C%	Mn%	S%	P%	Si%	Yield Strength	Tensile Strength	Elongation
						(Mpa)	(Mpa)	(%)
Q195	0.06-0.12	0.25-0.50	<0.05	<0.045	<0.3	>195	315-430	32-33
Q235	0.12-0.2	0.30-0.70	<0.045	<0.045	<0.3	>235	375-500	24-26
Q345	<0.20	1.0-1.6	<0.04	<0.04	<0.55	>345	470-630	21-22