Square Hollow Section

What is Square Hollow Section?

Square Hollow Section (SHS), a type of structural steel section, is available in a variety of sizes and walls. The steel pipes can be used for numerous purposes including signage, frames, benches, supports, and more. The steel tube is also known as a steel pipe. The galvanized steel pipe is zinc coated to resist rust and corrosion. Steel pipes are widely used in construction because they are strong and durable. Square Hollow Section steel pipes can be used to create a variety of shapes including round, square, rectangular, and more. The steel tube is available in a variety of sizes to meet the needs of any project.

Specifications of Square Hollow Section

- Size Range of Square Hollow Section

20mmx20mm ~ 400mmx400mm

- Thickness Range of Square Hollow Section

1.50mm to 12.50mm

- Length Range of Square Hollow Section

6 meters, 7.50 meters and/or 12 meters standard. Custom lengths are available.

- Tolerance of Square Hollow Section

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

Dimensions and Sizes of Square Hollow Section

Square Hollow Section Sizes	Weight	Height	Width	W. T.
Square Hollow Section Sizes	[kg/m]	[mm]	[mm]	[mm]
20 x 20 x 2 SHS	1.1	20	20	2
20 x 20 x 2.5 SHS	1.3	20	20	2.5
25 x 25 x 2 SHS	14	25	25	2
25 x 25 x 2.5 SHS	1.7	25	25	2.5
25 x 25 x 3 SHS	2	25	25	3
30 x 30 x 2 SHS	1.7	30	30	2
30 x 30 x 2.5 SHS	2.1	30	30	2.5
30 x 30 x 3 SHS	2.5	30	30	3
40 x 40 x 2.5 SHS	2.9	40	40	2.5
40 x 40 x 3 SHS	3.4	40	40	3
40 x 40 x 3.2 SHS	3.6	40	40	3.2
40 x 40 x 3.6 SHS	4	40	40	3.6
40 x 40 x 4 SHS	4.4	40	40	4
40 x 40 x 5 SHS	5.3	40	40	5
50 x 50 x 2.5 SHS	3.7	50	50	2.5
50 x 50 x 3 SHS	4.4	50	50	3
50 x 50 x 3.2 SHS	4.6	50	50	3.2
50 x 50 x 3.6 SHS	5.1	50	50	3.6
50 x 50 x 4 SHS	5.6	50	50	4
50 x 50 x 5 SHS	6.9	50	50	5
50 x 50 x 6 SHS	8	50	50	6
50 x 50 x 6.3 SHS	8.3	50	50	6.3
60 x 60 x 2.5 SHS	4.5	60	60	2.5
60 x 60 x 3 SHS	5.3	60	60	3
60 x 60 x 3.2 SHS	5.6	60	60	3.2
60 x 60 x 3.6 SHS	6.3	60	60	3.6
60 x 60 x 4 SHS	6.9	60	60	4
60 x 60 x 5 SHS	8.4	60	60	5
60 x 60 x 6 SHS	9.9	60	60	6
60 x 60 x 6.3 SHS	10.3	60	60	6.3
60 x 60 x 8 SHS	12.5	60	60	8
70 x 70 x 3 SHS	6.2	70	70	3
70 x 70 x 3.2 SHS	6.6	70	70	3.2
70 x 70 x 3.6 SHS	7.4	70	70	3.6
70 x 70 x 4 SHS	8.2	70	70	4
70 x 70 x 5 SHS	10	70	70	5
70 x 70 x 6 SHS	11.8	70	70	6
70 x 70 x 6.3 SHS	12.3	70	70	6.3
70 x 70 x 8 SHS	15	70	70	8
80 x 80 x 3 SHS	7.2	80	80	3
80 x 80 x 3.2 SHS	7.6	80	80	3.2
80 x 80 x 3.6 SHS	8.5	80	80	3.6
80 x 80 x 4 SHS	9.4	80	80	4
80 x 80 x 5 SHS	11.6	80	80	5
80 x 80 x 6 SHS	13.6	80	80	6
80 x 80 x 6.3 SHS	14.2	80	80	6.3
80 x 80 x 8 SHS	17.8	80	80	8
90 x 90 x 5 SHS	13.1	90	90	5
90 x 90 x 6 SHS	15.5	90	90	6
90 x 90 x 6.3 SHS	16.2	90	90	6.3
90 x 90 x 8 SHS	20.1	90	90	8
100 x 100 x 3.6 SHS	10.8	100	100	3.6
100 x 100 x 4 SHS	11.9	100	100	4
100 x 100 x 5 SHS	14.7	100	100	5
100 x 100 x 6 SHS	17.4	100	100	6
100 x 100 x 6.3 SHS	18.2	100	100	6.3
100 x 100 x 8 SHS	22.6	100	100	8
100 x 100 x 10 SHS	27.4	100	100	10
120 x 120 x 4 SHS	14.4	120	120	4
120 x 120 x 5 SHS	18	120	120	5
120 x 120 x 6 SHS	21.2	120	120	6
120 x 120 x 6.3 SHS	22.2	120	120	6.3
120 x 120 x 8 SHS	27.6	120	120	8
120 x 120 x 10 SHS	33.7	120	120	10
120 x 120 x 12 SHS	39.5	120	120	12
120 x 120 x 12.5 SHS	40.9	120	120	12.5
140 x 140 x 5 SHS	21	140	140	5
140 x 140 x 6 SHS	24.9	140	140	6
140 x 140 x 6.3 SHS	26.1	140	140	6.3
140 x 140 x 8 SHS	32.6	140	140	8
140 x 140 x 10 SHS	40	140	140	10
140 x 140 x 12 SHS	47	140	140	12
140 x 140 x 12.5 SHS	48.7	140	140	12.5
150 x 150 x 5 SHS	22.6	150	150	5
150 x 150 x 6 SHS	26.8	150	150	6
150 x 150 x 6.3 SHS	28.1	150	150	6.3
150 x 150 x 8 SHS	35.1	150	150	8
150 x 150 x 10 SHS	43.1	150	150	10
150 x 150 x 12 SHS	50.8	150	150	12
150 x 150 x 12.5 SHS	52.7	150	150	12.5
150 x 150 x 16 SHS	65.2	150	150	16
160 x 160 x 5 SHS	24.1	160	160	5
160 x 160 x 6 SHS	28.7	160	160	6
160 x 160 x 6.3 SHS	30.1	160	160	6.3
160 x 160 x 8 SHS	37.6	160	160	8
160 x 160 x 10 SHS	46.3	160	160	10
160 x 160 x 12 SHS	54.6	160	160	12
160 x 160 x 12.5 SHS	56.6	160	160	12.5
160 x 160 x 16 SHS	70.2	160	160	16
180 x 180 x 5 SHS	27.3	180	180	5
180 x 180 x 6 SHS	32.5	180	180	6
180 x 180 x 6.3 SHS	34	180	180	6.3
180 x 180 x 8 SHS	42.7	180	180	8
180 x 180 x 10 SHS	52.5	180	180	10
180 x 180 x 12 SHS	62.1	180	180	12
180 x 180 x 12.5 SHS	64.4	180	180	12.5
180 x 180 x 16 SHS	80.2	180	180	16
200 x 200 x 5 SHS	30.4	200	200	5
200 x 200 x 6 SHS	36.2	200	200	6
200 x 200 x 6.3 SHS	38	200	200	6.3
200 x 200 x 8 SHS	47.7	200	200	8
200 x 200 x 10 SHS	58.8	200	200	10
200 x 200 x 12 SHS	69.6	200	200	12
200 x 200 x 12.5 SHS	72.3	200	200	12.5
200 x 200 x 16 SHS	90.3	200	200	16
220 x 220 x 6 SHS	40	220	220	6
220 x 220 x 6.3 SHS	41.9	220	220	6.3
220 x 220 x 8 SHS	52.7	220	220	8
220 x 220 x 10 SHS	65.1	220	220	10
220 x 220 x 12 SHS	77.2	220	220	12
220 x 220 x 12.5 SHS	80.1	220	220	12.5
220 x 220 x 16 SHS	100	220	220	16
250 x 250 x 5 SHS	38.3	250	250	5
250 x 250 x 6 SHS	45.7	250	250	6
250 x 250 x 6.3 SHS	47.9	250	250	6.3
250 x 250 x 8 SHS	60.3	250	250	8
250 x 250 x 10 SHS	74.5	250	250	10
250 x 250 x 12 SHS	88.5	250	250	12
250 x 250 x 12.5 SHS	91.9	250	250	12.5
250 x 250 x 16 SHS	115	250	250	16
260 x 260 x 6 SHS	47.6	260	260	6
260 x 260 x 6.3 SHS	49.9	260	260	6.3
260 x 260 x 8 SHS	62.8	260	260	8
260 x 260 x 10 SHS	77.7	260	260	10
260 x 260 x 12 SHS	92.2	260	260	12
260 x 260 x 12.5 SHS	95.8	260	260	12.5
260 x 260 x 16 SHS	120	260	260	16
300 x 300 x 6 SHS	55.1	300	300	6
300 x 300 x 6.3 SHS	57.8	300	300	6.3
300 x 300 x 8 SHS	72.8	300	300	8
300 x 300 x 10 SHS	90.2	300	300	10
300 x 300 x 12 SHS	107	300	300	12
300 x 300 x 12.5 SHS	112	300	300	12.5
300 x 300 x 16 SHS	141	300	300	16
350 x 350 x 8 SHS	85.4	350	350	8
350 x 350 x 10 SHS	106	350	350	10
350 x 350 x 12 SHS	126	350	350	12
350 x 350 x 12.5 SHS	131	350	350	12.5
350 x 350 x 16 SHS	166	350	350	16
400 x 400 x 8 SHS	97.9	400	400	8
400 x 400 x 10 SHS	122	400	400	10
400 x 400 x 12 SHS	145	400	400	12
400 x 400 x 12.5 SHS	151	400	400	12.5
400 x 400 x 16 SHS	191	400	400	16
400 x 400 x 20 SHS	235	400	400	20

Chemical composition of Square Hollow Section

Chemical Requirements
Element	Composition, %
	Grades A, B, and D		Grade C
	Heat Analysis	Product Analysis	Heat Analysis	Product Analysis
Carbon, max A	0.26	0.30	0.23	0.27
Manganese, max A	1.35	1.40	1.35	1.40
Phosphorus, max	0.035	0.045	0.035	0.045
Sulfur, max	0.035	0.045	0.035	0.045
Copper, min B	0.20	0.18	0.20	0.18

Mechanical property of Square Hollow Section

Item	Grade A	Grade B	Grade C	Grade D
Tensile strength, mn, ps (MPa)	45 000 (310)	58 000 (400)	62 00 (427)	58 000 (400)
Yield strength, mn, psi (MPa)	39 000 (269)	46 000 (317)	50 000 (345)	36 000 (250)
Elongation in 2 in. (50.8 mm), min, %A	25B	23C	21D	23C

Appearance of Square Hollow Section

External and internal surfaces of the Square Hollow Section must be free of fissures, cracks, material overlay, and nonmetallic contaminants. Small scratches, dents, a thin coating of welding cinder, or traces left after cleaning manufacturing faults are permissible so long as the wall thickness does not fall below the minimum acceptable limits. The weld must be compact and uninterrupted, with no fractures or other flaws that diminish its resistance below that of the underlying metal.

The exterior lip of the weld seam is removed. Within the approved range of diameter limits, seam thickening is permissible. The inside burr of the weld seam is not removed. Inadmissible is unevenness on the edges of the metal strip along the weld seam. Square Hollow Sections must have their ends cut perpendicular to their axis. As a result of the cutting process, it is allowed for the pipe ends to have a burr. Not permitted is pipe end deformation.

Advantages of Using Square Hollow Sections

Hollow sections are commonly used in construction and piping applications because of their many advantages. Structural pipes are typically made from steel, which is a strong and durable material. This makes them ideal for use in applications where strength and durability are required, such as scaffolding or support structures. In addition, steel is less likely to corrode than other materials, making it an ideal choice for use in outdoor applications. Hollow sections are also readily available from most hardware stores and can be easily cut to size with a saw. This makes them ideal for use in a variety of projects, from building temporary structures to repairing or replacing existing piping. Overall, the cost-effectiveness, availability, and simplicity of hollow sections make them a popular choice for many construction and piping applications.