Construction

Structural cross-section galvanized square carbon steel pipe

DETAILS AND PARAMETERS

TOLERANCES

TECHNICAL SHEET

As a trusted supplier since 2013, we provide high-strength Structural Hollow Sections (SHS and RHS) for load-bearing applications worldwide. Our products, made from grades like S355J2H and S355NH, offer superior yield strength and impact resistance. The flat surfaces of our RHS tubes simplify welding and connections, reducing fabrication time and cost. With a focus on quality, we conduct pre-production samples and final inspections to guarantee reliability. Our services include flexible payment options (T/T, L/C, D/P, D/A, Cash) and delivery terms (FOB, CFR, CIF, EXW). Based in Tianjin, we export to the Middle East, Africa, South Asia, and other regions, ensuring competitive pricing and timely delivery.

Tolerance:

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