CHS Section Properties

EN 10210 · 101 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 21.3/2.3	21.3	2.3	1.37	0.63	0.59	0.83	1.08
CHS 21.3/2.6	21.3	2.6	1.53	0.68	0.64	0.92	1.2
CHS 21.3/3.2	21.3	3.2	1.82	0.77	0.72	1.06	1.43
CHS 26.9/2.3	26.9	2.3	1.78	1.36	1.01	1.4	1.4
CHS 26.9/2.6	26.9	2.6	1.98	1.48	1.1	1.54	1.56
CHS 26.9/3.2	26.9	3.2	2.38	1.7	1.27	1.81	1.87
CHS 33.7/2.6	33.7	2.6	2.54	3.09	1.83	2.52	1.99
CHS 33.7/3.2	33.7	3.2	3.07	3.6	2.14	2.99	2.41
CHS 33.7/4	33.7	4	3.73	4.19	2.49	3.55	2.93
CHS 42.4/2.6	42.4	2.6	3.25	6.46	3.05	4.12	2.55
CHS 42.4/3.2	42.4	3.2	3.94	7.62	3.59	4.93	3.09
CHS 42.4/4	42.4	4	4.83	8.99	4.24	5.92	3.79
CHS 48.3/2.6	48.3	2.6	3.73	9.78	4.05	5.44	2.93
CHS 48.3/3.2	48.3	3.2	4.53	11.59	4.8	6.52	3.56
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 60.3/2.6	60.3	2.6	4.71	19.65	6.52	8.66	3.7
CHS 60.3/3.2	60.3	3.2	5.74	23.47	7.78	10.44	4.51
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 76.1/2.6	76.1	2.6	6	40.59	10.67	14.05	4.71
CHS 76.1/3.2	76.1	3.2	7.33	48.78	12.82	17.02	5.75
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 88.9/3.2	88.9	3.2	8.62	79.21	17.82	23.51	6.76
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 88.9/6.3	88.9	6.3	16.35	140.2	31.55	43.07	12.8
CHS 101.6/3.2	101.6	3.2	9.89	119.9	23.59	31	7.77
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 101.6/6.3	101.6	6.3	18.86	215.1	42.34	57.3	14.8
CHS 101.6/8	101.6	8	23.52	259.5	51.08	70.26	18.5
CHS 101.6/10	101.6	10	28.78	305.4	60.12	84.24	22.6
CHS 114.3/3.2	114.3	3.2	11.17	172.5	30.18	39.51	8.77
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 114.3/6.3	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 114.3/10	114.3	10	32.77	449.7	78.68	109.1	25.7
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 139.7/6.3	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 139.7/12.5	139.7	12.5	49.95	1 020	146	202.9	39.2
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 168.3/6.3	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 168.3/12.5	168.3	12.5	61.18	1 868	222	304.1	48
CHS 177.8/5	177.8	5	27.14	1 014	114.1	149.3	21.3
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 177.8/12.5	177.8	12.5	64.91	2 230	250.8	342.2	51
CHS 193.7/5	193.7	5	29.64	1 320	136.3	178.1	23.3
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 193.7/12.5	193.7	12.5	71.16	2 934	303	411.1	55.9
CHS 193.7/14.2	193.7	14.2	80.08	3 245	335.1	458.5	62.9
CHS 193.7/16	193.7	16	89.32	3 554	367	506.6	70.1
CHS 219.1/5	219.1	5	33.63	1 928	176	229.2	26.4
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 219.1/12.5	219.1	12.5	81.13	4 345	396.6	534.2	63.7
CHS 219.1/14.2	219.1	14.2	91.41	4 820	440	597.1	71.8
CHS 219.1/16	219.1	16	102.09	5 297	483.5	661.4	80.1
CHS 219.1/20	219.1	20	125.1	6 261	571.5	795.5	98.2
CHS 244.5/5	244.5	5	37.62	2 699	220.7	286.8	29.5
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 244.5/12.5	244.5	12.5	91.11	6 147	502.9	673.5	71.5
CHS 244.5/14.2	244.5	14.2	102.74	6 837	559.3	754.1	80.6
CHS 244.5/16	244.5	16	114.86	7 533	616.2	836.8	90.2
CHS 244.5/20	244.5	20	141.06	8 957	732.7	1 011	110.7
CHS 244.5/25	244.5	25	172.39	10 520	860.3	1 210	135.3
CHS 273/5	273	5	42.1	3 781	277	359.2	33
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 273/12.5	273	12.5	102.3	8 697	637.2	848.9	80.3
CHS 273/14.2	273	14.2	115.45	9 695	710.3	952	90.6
CHS 273/16	273	16	129.18	10 710	784.4	1 058	101.4
CHS 273/20	273	20	158.96	12 800	937.6	1 283	124.8
CHS 273/25	273	25	194.78	15 130	1 108	1 543	152.9
CHS 323.9/5	323.9	5	50.09	6 369	393.3	508.5	39.3
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 323.9/12.5	323.9	12.5	122.29	14 850	916.7	1 213	96
CHS 323.9/14.2	323.9	14.2	138.16	16 600	1 025	1 363	108.5
CHS 323.9/16	323.9	16	154.77	18 390	1 136	1 518	121.5
CHS 323.9/20	323.9	20	190.95	22 140	1 367	1 850	149.9
CHS 323.9/25	323.9	25	234.76	26 400	1 630	2 239	184.3
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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