CHS Steel | Circular Hollow Section

CHS Steel - Circular Hollow Sections

At Steelo, we specialise in providing high-quality Circular Hollow Sections (CHS) tailored to meet the needs of modern construction projects. Known for their exceptional strength, versatility, and precise dimensions, our CHS steel products are ideal for both structural and aesthetic applications.

Whether your project requires durability or a sleek design, our expertly manufactured CHS sections ensure excellent performance and reliability. Ordering CHS sections is simple. We are committed to delivering a seamless service, with fast lead times and competitive pricing that keeps your project on schedule and within budget. Contact us today to discuss your requirements and receive a tailored quote.

CHS Size & Weight Chart

	Type	Weight [kg/m]	Diameter [mm]	Wall thickness [mm]
01	21.3 x 3.2 CHS	1.4	21.3	3.2
02	26.9 x 3.2 CHS	1.9	26.9	3.2
03	33.7 x 2.6 CHS	2.0	33.7	2.6
04	33.7 x 3.2 CHS	2.4	33.7	3.2
05	33.7 x 4 CHS	2.9	33.7	4
06	42.4 x 2.6 CHS	2.6	42.4	2.6
07	42.4 x 3.2 CHS	3.1	42.4	3.2
08	42.4 x 4 CHS	3.8	42.4	4
09	48.3 x 3.2 CHS	3.6	48.3	3.2
10	48.3 x 4 CHS	4.4	48.3	4
11	48.3 x 5 CHS	5.3	48.3	5
12	60.3 x 3.2 CHS	4.5	60.3	3.2
13	60.3 x 4 CHS	5.6	60.3	4
14	60.3 x 5 CHS	6.8	60.3	5
15	76.1 x 3.2 CHS	5.8	76.1	3.2
16	76.1 x 4 CHS	7.1	76.1	4
17	76.1 x 5 CHS	8.8	76.1	5
18	88.9 x 3.2 CHS	6.8	88.9	3.2
19	88.9 x 4 CHS	8.4	88.9	4
20	88.9 x 5 CHS	10.3	88.9	5
21	114.3 x 3.6 CHS	9.8	114.3	3.6
22	114.3 x 5 CHS	13.5	114.3	5
23	114.3 x 6.3 CHS	16.8	114.3	6.3
24	139.7 x 5 CHS	16.6	139.7	5
25	139.7 x 6.3 CHS	20.7	139.7	6.3
26	139.7 x 8 CHS	26.0	139.7	8
27	139.7 x 10 CHS	32.0	139.7	10
28	168.3 x 5 CHS	20.1	168.3	5
29	168.3 x 6.3 CHS	25.2	168.3	6.3
30	168.3 x 8 CHS	31.6	168.3	8
31	168.3 x 10 CHS	39.0	168.3	10
32	193.7 x 5 CHS	23.3	193.7	5
33	193.7 x 5.4 CHS	25.1	193.7	5.4
34	193.7 x 6.3 CHS	29.1	193.7	6.3
35	193.7 x 8 CHS	36.6	193.7	8
36	193.7 x 10 CHS	45.3	193.7	10
37	193.7 x 12.5 CHS	55.9	193.7	12.5
38	193.7 x 16 CHS	70.1	193.7	16
39	219.1 x 5 CHS	26.4	219.1	5
40	219.1 x 6.3 CHS	33.1	219.1	6.3
41	219.1 x 8 CHS	41.6	219.1	8
42	219.1 x 10 CHS	51.6	219.1	10
43	219.1 x 12.5 CHS	63.7	219.1	12.5
44	219.1 x 16 CHS	80.1	219.1	16
45	219.1 x 20 CHS	98.2	219.1	20
46	244.5 x 6.3 CHS	37.0	244.5	6.3
47	244.5 x 8 CHS	46.7	244.5	8
48	244.5 x 10 CHS	57.8	244.5	10
49	244.5 x 12.5 CHS	71.5	244.5	12.5
50	244.5 x 16 CHS	90.2	244.5	16
51	244.5 x 20 CHS	111.0	244.5	20
52	273 x 6.3 CHS	41.4	273	6.3
53	273 x 8 CHS	52.3	273	8
54	273 x 10 CHS	64.9	273	10
55	273 x 12.5 CHS	80.3	273	12.5
56	273 x 16 CHS	101.0	273	16
57	273 x 20 CHS	125.0	273	20
58	273 x 25 CHS	153.0	273	25
59	323.9 x 6.3 CHS	49.3	323.9	6.3
60	323.9 x 8 CHS	62.3	323.9	8
61	323.9 x 10 CHS	77.4	323.9	10
62	323.9 x 12.5 CHS	96.0	323.9	12.5
63	323.9 x 16 CHS	121.0	323.9	16
64	323.9 x 20 CHS	150.0	323.9	20
65	323..9 x 25 CHS	184.0	323.9	25
66	355.6 x 8 CHS	68.6	355.6	8
67	355.6 x 10 CHS	85.2	355.6	10
68	355.6 x 12.5 CHS	106.0	355.6	12.5
69	355.6 x 16 CHS	134.0	355.6	16
70	355.6 x 20 CHS	166.0	355.6	20
71	355.6 x 25 CHS	204.0	355.6	25
72	406.4 x 10 CHS	97.8	406.4	10
73	406.4 x 12.5 CHS	121.0	406.4	12.5
74	406.4 x 16 CHS	154.0	406.4	16
75	406 x 20 CHS	191.0	406.4	20
76	406.4 x 25 CHS	235.0	406.4	25
77	406.4 x 32 CHS	295.0	406.4	32
78	457 x 10 CHS	110.0	457	10
79	457 x 12.5 CHS	137.0	457	12.5
80	457 x 16 CHS	174.0	457	16
81	457 x 20 CHS	216.0	457	20
82	457 x 25 CHS	266.0	457	25
83	457 x 32 CHS	335.0	457	32
84	457 x 40 CHS	411.0	457	40

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100% free CHS steel quotation

Get started quickly with our free CHS steel quotation service, offering transparent pricing and expert advice tailored to your project needs.

Planning and design process

Work with our skilled team to refine your plans, ensuring your circular hollow sections are engineered for precision and maximum efficiency.

Bespoke CHS steel production

Your CHS steel are custom-fabricated to the highest standards, guaranteeing quality and accuracy for your construction project.

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Circular Hollow Section - FAQs

Below are the most common questions sent to our team about CHS steel.

What is CHS in structural steel?

CHS stands for Circular Hollow Section, a type of structural steel characterised by its circular cross-section. Known for its strength, aesthetic appeal, and versatility, CHS steel is widely used in construction for applications such as columns, trusses, and architectural features.

Its uniform shape offers excellent resistance to torsion and bending, making it ideal for projects where strength and durability are critical. Whether for structural use or design elements, CHS steel provides a reliable and efficient solution for modern construction needs.
How are circular hollow sections made?

Circular Hollow Sections (CHS) are manufactured through a process called hot rolling or cold forming.

In hot rolling, steel is heated to a high temperature before being passed through rollers to create a tubular shape with precise dimensions. On the other hand, cold forming shapes the steel at room temperature, allowing for tighter tolerances and smoother finishes.

Both methods ensure that CHS steel meets the demands of construction applications, offering exceptional structural integrity and durability. These processes enhance its strength, uniformity, and resistance to external forces, making CHS sections a popular choice for load-bearing elements and architectural designs.
How to measure the diameter of a circular hollow section?

To measure the diameter of a Circular Hollow Section (CHS), use a tape measure or calliper to determine the outer diameter (OD) of the pipe. Place the measuring tool across the widest part of the section, ensuring it spans the circular cross-section fully for an accurate result.

Accurate measurement of the diameter is essential in construction to ensure the CHS meets project specifications and fits seamlessly into the structural design. For precise results, especially on large-scale projects, consider using specialist tools or consulting a structural professional.