Galvanized Metal Square Steel Tubes

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Product Description

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 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.

1. Products description

Brand name: Friend
Factory address: Tianjin, China
Product name: SHS ( square hollow section ), RHS ( rectangular hollow section)
Size: 2020 - 400400
Thickness: 0.6-16 mm
Material: Q195, Q235, Q345 / S235, S355 / SS400 STK500
Standard：GB T3094, EN10219, ASTM A500, etc.
Application: mainly construction
Surface treatment: black, HD galvanized, pre galvanized, painted, etc.
Certification: ISO, SGS, BV and other third party testing

galvanized square tubes

2. Size of RHS & SHS

square steel pipe		rectangular steel pipe		other size can also be customized
20*20	100*100	40*20	120*60
25*25	120*120	50*30	120*80
30*30	140*140	60*40	140*80
40*40	150*150	70*50	150*100
50*50	160*160	80*40	160*80
60*60	180*180	80*60	180*100
80*80	200*200	100*40	200*100
	250*250	100*50	250*150
	300*300	100*60	300*100
	350*350	100*80	300*150
	400*400		300*200
			400*200
			400*300

metal tubes

3. Main material of steel tube

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