Mild Steel Hollow Sections For 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 carbon steel tube are widely used in various fields such as construction or building, low pressure liquid delivery, engineering, fencing,greenhouse etc.
Surface of steel hollow section generally are black or galvanized, galvanized Steel tube has good features of corrosion resistance, anti-rust, acid resistance, which largely extend its service life.

1. Products description

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


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

Standard	GB T3094, EN10210, ASTM A500
Surface	HD galvanized pre galvanized black, oiled
Zinc Coating	180-600g HD galvanized 40-120g Pre galvanized
Hollow shape	square or rectangular
Treatment	hot rolled or cold rolled
Payment terms	mainly TT or LC
Certification	ISO, SGS, BV other third party testing
Business type	manufacture supplier

2. Detailed information

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