Construction

ASTM A36 Pre-galvanized Rectangular Welded Steel Tube

DETAILS AND PARAMETERS

TOLERANCES

TECHNICAL SHEET

1. Premium Hot-Dip Galvanized Rectangular Hollow Section (RHS)
Our structural-grade galvanized RHS tubes offer superior corrosion resistance and durability, making them ideal for outdoor and high-moisture environments. Available in sizes ranging from 50mm x 20mm to 400mm x 300mm and thicknesses from 1.6mm to 16mm, these tubes are manufactured to EN 10219 and ASTM A500 standards. With flat surfaces for easy welding and fabrication, they are widely used in construction, infrastructure, and industrial frameworks.

Length	+/- 50 MM
Wall Thickness	+/- 12.5%
Weight	+/- 8%

Square Hollow Section
Size	Thickness	Size	Thickness	Size	Thickness
mm	mm	mm	mm	mm	mm
50 X 25	2.0	120 X 40	3.0	20 x 20	2.0
50 X 25	2.5	120 X 40	3.6	20 x 20	2.5
50 X 25	3.0	120 X 40	4.0	25 x 25	2.0
50 X 30	2.5	120 X 40	5.0	25 x 25	2.5
50 X 30	3.0	120 X 40	6.0	25 x 25	3.0
50 X 30	3.2	120 X 40	6.3	30 x 30	2.5
50 X 30	4.0	120 X 60	3.0	30 x 30	3.0
60 X 40	2.5	120 X 60	3.6	40 x 40	2.0
60 X 40	3.0	120 X 60	4.0	40 x 40	2.5
60 X 40	3.2	120 X 60	5.0	40 x 40	3.0
60 X 40	4.0	120 X 60	6.0	40 x 40	4.0
80 X 40	3.0	120 X 60	6.3	50 x 50	2.0
80 X 40	3.2	120 X 80	3.0	50 x 50	2.5
80 X 40	4.0	120 X 80	4.0	50 x 50	3.0
80 X 60	2.5	120 X 80	5.0	50 x 50	4.0
80 X 60	3.0	120 X 80	6.0	50 x 50	5.0
80 X 60	3.6	120 X 80	6.3	60 x 60	3.0
80 X 60	4.0	150 X100	3.0	60 x 60	4.0
80 X 60	5.0	150 X100	4.0	60 x 60	5.0
90 X 50	2.5	150 X100	5.0	70 x 70	3.0
90 X 50	3.0	150 X100	6.0	70 x 70	3.6
90 X 50	3.6	150 X100	6.3	70 x 70	5.0
90 X 50	4.0	160 X 80	3.0	80 x 80	3.0
90 X 50	5.0	160 X 80	4.0	80 x 80	3.6
100 X 40	3.0	160 X 80	5.0	80 x 80	5.0
100 X 40	3.6	160 X 80	6.0	80 x 80	6.0
100 X 40	4.0	160 X 80	6.3	90 x 90	3.0
100 X 40	5.0	200 X 100	4.0	90 x 90	3.6
100 X 50	3.0	200 X 100	5.0	90 x 90	5.0
100 X 50	3.6	200 X 100	6.0	90 x 90	6.0
100 X 50	4.0	200 X 100	6.3	100 x 100	4.0
100 X 50	5.0	200 X 100	8.0	100 x 100	5.0
100 X 50	6.0	200 X 100	10.0	100 x 100	6.0
100 X 50	6.3	200 X 100	12.5	100 x 100	8.0
100 X 60	3.0	200 X 100	16.0	100 x 100	10.0
100 X 60	3.6	250 X 150	6.3	120 x 120	5.0
100 X 60	4.0	250 X 150	8.0	120 x 120	6.0
100 X 60	5.0	250 X 150	10.0	120 x 120	8.0
100 X 60	6.0	250 X 150	12.5	120 x 120	10.0
100 X 60	6.3	250 X 150	16.0	150 x 150	5.0
100 X 80	3.0	300 X 200	6.3	150 x 150	6.0
100 X 80	3.6	300 X 200	8.0	150 x 150	8.0
100 X 80	4.0	300 X 200	10.0	150 x 150	10.0
100 X 80	5.0	300 X 200	12.5	180 x 180	6.0
100 X 80	6.0	300 X 200	16.0	180 x 180	8.0
100 X 80	6.3	400 X 200	10.0	180 x 180	10.0
		400 X 200	12.5	180 x 180	12.5
		400 X 200	16.0	200 x 200	6.0
		450 X 250	10.0	200 x 200	8.0
		450 X 250	12.5	200 x 200	10.0
		450 X 250	16.0	200 x 200	12.5
				250 x 250	8.0
				250 x 250	10.0
				250 x 250	12.5
				300 x 300	8.0
				300 x 300	10.0
				300 x 300	12.5

Steel Grade: Q195, Q215, Q235, Q345, S235JR, S275JR, SS4007

Data	Elements（%）
Materal Grade	C	Mn	S	P	Si
Q195	0.06-0.12	0.25-0.50	<0.05	<0.045	<0.30
Q215	0.09-0.15	0.25-0.55	<0.05	<0.045	<0.30
Q235	0.12-0.20	0.30-0.70	<0.045	<0.045	<0.30
Q345	<0.20	1.0-1.6	<0.04	<0.04	<0.55

Mechanical property

Materal Grade	Yield point (Mpa)	Tensile Strength (Mpa)	Elongation(%)
Q195	>195	315-430	32-33
Q215	>215	335-450	26-31
Q235	>235	375-500	24-26
Q345	>345	470-630	21-22

Comments (2)

Katherine A. Fogg

November 25, 2024

Their products are of excellent quality and they offer generous discounts. This is their third cooperation