CHS Section Properties

EN 10219 · 114 sections

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	GEOMETRY		AREA	BENDING			WEIGHT
Profile	d[mm]▲	t[mm]▲	A[cm²]▲	I[cm⁴]▲	W_el[cm³]▲	W_pl[cm³]▲	G[kg/m]▲
CHS 21.3/2	21.3	2	1.21	0.57	0.54	0.75	0.95
CHS 21.3/2.5	21.3	2.5	1.48	0.66	0.62	0.89	1.16
CHS 21.3/3	21.3	3	1.72	0.74	0.7	1.01	1.35
CHS 26.9/2	26.9	2	1.56	1.22	0.91	1.24	1.23
CHS 26.9/2.5	26.9	2.5	1.92	1.44	1.07	1.49	1.5
CHS 26.9/3	26.9	3	2.25	1.63	1.22	1.72	1.77
CHS 33.7/2	33.7	2	1.99	2.51	1.49	2.01	1.56
CHS 33.7/2.5	33.7	2.5	2.45	3	1.78	2.44	1.92
CHS 33.7/3	33.7	3	2.89	3.44	2.04	2.84	2.27
CHS 42.4/2	42.4	2	2.54	5.19	2.45	3.27	1.99
CHS 42.4/2.5	42.4	2.5	3.13	6.26	2.95	3.98	2.46
CHS 42.4/3	42.4	3	3.71	7.25	3.42	4.67	2.91
CHS 42.4/4	42.4	4	4.83	8.99	4.24	5.92	3.79
CHS 48.3/2	48.3	2	2.91	7.81	3.23	4.29	2.28
CHS 48.3/2.5	48.3	2.5	3.6	9.46	3.92	5.25	2.82
CHS 48.3/3	48.3	3	4.27	11	4.55	6.17	3.35
CHS 48.3/4	48.3	4	5.57	13.77	5.7	7.87	4.37
CHS 48.3/5	48.3	5	6.8	16.15	6.69	9.42	5.34
CHS 60.3/2	60.3	2	3.66	15.58	5.17	6.8	2.88
CHS 60.3/2.5	60.3	2.5	4.54	18.99	6.3	8.36	3.56
CHS 60.3/3	60.3	3	5.4	22.22	7.37	9.86	4.24
CHS 60.3/4	60.3	4	7.07	28.17	9.34	12.7	5.55
CHS 60.3/5	60.3	5	8.69	33.48	11.1	15.33	6.82
CHS 76.1/2	76.1	2	4.66	31.98	8.4	10.98	3.65
CHS 76.1/2.5	76.1	2.5	5.78	39.19	10.3	13.55	4.54
CHS 76.1/3	76.1	3	6.89	46.1	12.11	16.04	5.41
CHS 76.1/4	76.1	4	9.06	59.06	15.52	20.81	7.11
CHS 76.1/5	76.1	5	11.17	70.92	18.64	25.32	8.77
CHS 76.1/6	76.1	6	13.21	81.76	21.49	29.56	10.4
CHS 76.1/6.3	76.1	6.3	13.81	84.82	22.29	30.78	10.8
CHS 88.9/2	88.9	2	5.46	51.57	11.6	15.11	4.29
CHS 88.9/2.5	88.9	2.5	6.79	63.37	14.26	18.67	5.33
CHS 88.9/3	88.9	3	8.1	74.76	16.82	22.15	6.36
CHS 88.9/4	88.9	4	10.67	96.34	21.67	28.85	8.38
CHS 88.9/5	88.9	5	13.18	116.4	26.18	35.24	10.3
CHS 88.9/6	88.9	6	15.63	134.9	30.36	41.31	12.3
CHS 88.9/6.3	88.9	6.3	16.35	140.2	31.55	43.07	12.8
CHS 101.6/2	101.6	2	6.26	77.63	15.28	19.84	4.91
CHS 101.6/2.5	101.6	2.5	7.78	95.61	18.82	24.56	6.11
CHS 101.6/3	101.6	3	9.29	113	22.25	29.17	7.29
CHS 101.6/4	101.6	4	12.26	146.3	28.8	38.12	9.63
CHS 101.6/5	101.6	5	15.17	177.5	34.93	46.7	11.9
CHS 101.6/6	101.6	6	18.02	206.7	40.68	54.91	14.1
CHS 101.6/6.3	101.6	6.3	18.86	215.1	42.34	57.3	14.8
CHS 114.3/2.5	114.3	2.5	8.78	137.3	24.02	31.25	6.89
CHS 114.3/3	114.3	3	10.49	162.5	28.44	37.17	8.23
CHS 114.3/4	114.3	4	13.86	211.1	36.93	48.69	10.9
CHS 114.3/5	114.3	5	17.17	256.9	44.96	59.77	13.5
CHS 114.3/6	114.3	6	20.41	300.2	52.53	70.45	16
CHS 114.3/6.3	114.3	6.3	21.38	312.7	54.72	73.57	16.8
CHS 114.3/8	114.3	8	26.72	379.5	66.4	90.57	21
CHS 139.7/3	139.7	3	12.88	301.1	43.11	56.07	10.1
CHS 139.7/4	139.7	4	17.05	392.9	56.24	73.68	13.4
CHS 139.7/5	139.7	5	21.16	480.5	68.8	90.76	16.6
CHS 139.7/6	139.7	6	25.2	564.3	80.78	107.3	19.8
CHS 139.7/6.3	139.7	6.3	26.4	588.6	84.27	112.2	20.7
CHS 139.7/8	139.7	8	33.1	720.3	103.1	138.9	26
CHS 139.7/10	139.7	10	40.75	861.9	123.4	168.6	32
CHS 168.3/3	168.3	3	15.58	532.3	63.25	81.98	12.2
CHS 168.3/4	168.3	4	20.65	697.1	82.84	108	16.2
CHS 168.3/5	168.3	5	25.65	855.8	101.7	133.4	20.1
CHS 168.3/6	168.3	6	30.59	1 009	119.9	158.1	24
CHS 168.3/6.3	168.3	6.3	32.06	1 053	125.2	165.4	25.2
CHS 168.3/8	168.3	8	40.29	1 297	154.2	205.7	31.6
CHS 168.3/10	168.3	10	49.73	1 564	185.9	250.9	39
CHS 177.8/4	177.8	4	21.84	825.1	92.81	120.8	17.1
CHS 177.8/5	177.8	5	27.14	1 014	114.1	149.3	21.3
CHS 177.8/6	177.8	6	32.38	1 196	134.6	177.2	25.4
CHS 177.8/6.3	177.8	6.3	33.94	1 250	140.6	185.4	26.6
CHS 177.8/8	177.8	8	42.68	1 541	173.4	230.8	33.5
CHS 177.8/10	177.8	10	52.72	1 862	209.4	281.9	41.4
CHS 177.8/12	177.8	12	62.51	2 159	242.9	330.5	49.1
CHS 177.8/12.5	177.8	12.5	64.91	2 230	250.8	342.2	51
CHS 193.7/4	193.7	4	23.84	1 073	110.8	144	18.7
CHS 193.7/5	193.7	5	29.64	1 320	136.3	178.1	23.3
CHS 193.7/6	193.7	6	35.38	1 560	161	211.5	27.8
CHS 193.7/6.3	193.7	6.3	37.09	1 630	168.3	221.3	29.1
CHS 193.7/8	193.7	8	46.67	2 016	208.1	276	36.6
CHS 193.7/10	193.7	10	57.71	2 442	252.1	337.8	45.3
CHS 193.7/12	193.7	12	68.5	2 839	293.2	396.8	53.8
CHS 193.7/12.5	193.7	12.5	71.16	2 934	303	411.1	55.9
CHS 219.1/4	219.1	4	27.03	1 564	142.8	185.1	21.2
CHS 219.1/5	219.1	5	33.63	1 928	176	229.2	26.4
CHS 219.1/6	219.1	6	40.17	2 282	208.3	272.5	31.5
CHS 219.1/6.3	219.1	6.3	42.12	2 386	217.8	285.4	33.1
CHS 219.1/8	219.1	8	53.06	2 960	270.2	356.7	41.6
CHS 219.1/10	219.1	10	65.69	3 598	328.5	437.6	51.6
CHS 219.1/12	219.1	12	78.07	4 200	383.4	515.3	61.3
CHS 219.1/12.5	219.1	12.5	81.13	4 345	396.6	534.2	63.7
CHS 244.5/5	244.5	5	37.62	2 699	220.7	286.8	29.5
CHS 244.5/6	244.5	6	44.96	3 199	261.6	341.4	35.3
CHS 244.5/6.3	244.5	6.3	47.14	3 346	273.7	357.5	37
CHS 244.5/8	244.5	8	59.44	4 160	340.3	447.6	46.7
CHS 244.5/10	244.5	10	73.67	5 073	415	550.2	57.8
CHS 244.5/12	244.5	12	87.65	5 938	485.8	649.3	68.8
CHS 244.5/12.5	244.5	12.5	91.11	6 147	502.9	673.5	71.5
CHS 273/5	273	5	42.1	3 781	277	359.2	33
CHS 273/6	273	6	50.33	4 487	328.7	427.8	39.5
CHS 273/6.3	273	6.3	52.79	4 696	344	448.2	41.4
CHS 273/8	273	8	66.6	5 852	428.7	562	52.3
CHS 273/10	273	10	82.62	7 154	524.1	692	64.9
CHS 273/12	273	12	98.39	8 396	615.1	818	77.2
CHS 273/12.5	273	12.5	102.3	8 697	637.2	848.9	80.3
CHS 323.9/5	323.9	5	50.09	6 369	393.3	508.5	39.3
CHS 323.9/6	323.9	6	59.92	7 572	467.6	606.4	47
CHS 323.9/6.3	323.9	6.3	62.86	7 929	489.6	635.6	49.3
CHS 323.9/8	323.9	8	79.39	9 910	611.9	798.5	62.3
CHS 323.9/10	323.9	10	98.61	12 160	750.7	985.7	77.4
CHS 323.9/12	323.9	12	117.58	14 320	884.2	1 168	92.3
CHS 323.9/12.5	323.9	12.5	122.29	14 850	916.7	1 213	96
CHS 355.6/5	355.6	5	55.07	8 464	476	614.6	43.2
CHS 355.6/6	355.6	6	65.9	10 070	566.4	733.4	51.7
CHS 355.6/6.3	355.6	6.3	69.13	10 550	593.2	768.7	54.3
CHS 355.6/8	355.6	8	87.36	13 200	742.5	966.8	68.6

About CHS profiles

CHS (Circular Hollow Section) is a closed circular tubular section. European standards distinguish hot-finished CHS per EN 10210 and cold-formed CHS per EN 10219.

CHS has the same moment of inertia in all directions, making it ideal for truss structures and members where load orientation varies. Typical uses: columns with variable load directions, truss structures (roof trusses, tunnel supports), architecturally exposed frames. For a given area, the circular hollow shape provides the highest torsional stiffness of common profiles and the lowest aerodynamic drag.

Frequently asked questions

What is the difference between EN 10210 and EN 10219?

EN 10210 covers hollow sections manufactured hot-finished, EN 10219 covers cold-formed. Hot-finished sections have more uniform properties and are typically more expensive.

Why does CHS have high torsional stiffness?

The closed circular shape has the maximum polar moment of inertia for a given area. Torsion is carried uniformly around the perimeter without warping, making CHS ideal for torsion.

Is CHS suitable for architectural use?

Yes, the clean circular shape is often used for exposed structures (stadiums, stations, footbridges). It also works for dense aesthetics as welds can be blended smoothly.

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