Unequal Angles (UA) - Section Properties Table

Dimensions and section properties for all 39 Unequal Angles (UA) to BS EN 10056-1 (SCI P363 Blue Book): leg lengths, thickness, mass and principal-axis properties for every unequal angle. Use the table below for reference, or open the interactive tool to run EC3 capacity checks.

🔍 Open the full Steel Catalogue - properties, capacity & Find Section →Open the interactive UA tool - EC3 capacity checks →📖 Design theory 📐 Worked example

Designation	mass kg/m	h mm	b mm	t_w mm	I_y cm⁴	I_z cm⁴	i_y cm	i_z cm	I_u cm⁴	I_v cm⁴	i_u cm	i_v cm	A cm²
UA 200×150×18⁺	47.1	200	150	18	2380	1150	6.29	4.37	2920	623	6.97	3.22	60
UA 200×150×15	39.6	200	150	15	2020	979	6.33	4.4	2480	526	7	3.23	50.5
UA 200×150×12	32	200	150	12	1650	803	6.36	4.44	2030	430	7.04	3.25	40.8
UA 200×100×15	33.8	200	100	15	1760	299	6.4	2.64	1860	193	6.59	2.12	43
UA 200×100×12	27.3	200	100	12	1440	247	6.43	2.67	1530	159	6.63	2.14	34.8
UA 200×100×10	23	200	100	10	1220	210	6.46	2.68	1290	135	6.65	2.15	29.2
UA 150×90×15	26.6	150	90	15	761	205	4.74	2.46	841	126	4.98	1.93	33.9
UA 150×90×12	21.6	150	90	12	627	171	4.77	2.49	694	104	5.02	1.94	27.5
UA 150×90×10	18.2	150	90	10	533	146	4.8	2.51	591	88.3	5.05	1.95	23.2
UA 150×75×15	24.8	150	75	15	713	119	4.75	1.94	753	78.6	4.88	1.58	31.7
UA 150×75×12	20.2	150	75	12	588	99.6	4.78	1.97	623	64.7	4.92	1.59	25.7
UA 150×75×10	17	150	75	10	501	85.6	4.81	1.99	531	55.1	4.95	1.6	21.7
UA 125×75×12	17.8	125	75	12	354	95.5	3.95	2.05	391	58.5	4.15	1.61	22.7
UA 125×75×10	15	125	75	10	302	82.1	3.97	2.07	334	49.9	4.18	1.61	19.1
UA 125×75×8	12.2	125	75	8	247	67.6	4	2.09	274	40.9	4.21	1.63	15.5
UA 100×75×12	15.4	100	75	12	189	90.2	3.1	2.14	230	49.5	3.42	1.59	19.7
UA 100×75×10	13	100	75	10	162	77.6	3.12	2.16	197	42.2	3.45	1.59	16.6
UA 100×75×8	10.6	100	75	8	133	64.1	3.14	2.18	162	34.6	3.47	1.6	13.5
UA 100×65×10⁺	12.3	100	65	10	154	51	3.14	1.81	175	30.1	3.35	1.39	15.6
UA 100×65×8⁺	9.94	100	65	8	127	42.2	3.16	1.83	144	24.8	3.37	1.4	12.7
UA 100×65×7⁺	8.77	100	65	7	113	37.6	3.17	1.83	128	22	3.39	1.4	11.2
UA 100×50×8	8.97	100	50	8	116	19.7	3.19	1.31	123	12.8	3.28	1.06	11.4
UA 100×50×6	6.84	100	50	6	89.9	15.4	3.21	1.33	95.4	9.92	3.31	1.07	8.71
UA 80×60×7	7.36	80	60	7	59	28.4	2.51	1.74	72	15.4	2.77	1.28	9.38
UA 80×40×8	7.07	80	40	8	57.6	9.61	2.53	1.03	60.9	6.34	2.6	0.838	9.01
UA 80×40×6	5.41	80	40	6	44.9	7.59	2.55	1.05	47.6	4.93	2.63	0.845	6.89
UA 75×50×8	7.39	75	50	8	52	18.4	2.35	1.4	59.6	10.8	2.52	1.07	9.41
UA 75×50×6	5.65	75	50	6	40.5	14.4	2.37	1.42	46.6	8.36	2.55	1.08	7.19
UA 70×50×6	5.41	70	50	6	33.4	14.2	2.2	1.43	39.7	7.92	2.4	1.07	6.89
UA 65×50×5	4.35	65	50	5	23.2	11.9	2.05	1.47	28.8	6.32	2.28	1.07	5.54
UA 60×40×6	4.46	60	40	6	20.1	7.12	1.88	1.12	23.1	4.16	2.02	0.855	5.68
UA 60×40×5	3.76	60	40	5	17.2	6.11	1.89	1.13	19.7	3.54	2.03	0.86	4.79
UA 60×30×5	3.36	60	30	5	15.6	2.63	1.91	0.784	16.5	1.71	1.97	0.633	4.28
UA 50×30×5	2.96	50	30	5	9.36	2.51	1.57	0.816	10.3	1.54	1.65	0.639	3.78
UA 45×30×4	2.25	45	30	4	5.78	2.05	1.42	0.85	6.65	1.18	1.52	0.64	2.87
UA 40×25×4	1.93	40	25	4	3.89	1.16	1.26	0.687	4.35	0.7	1.33	0.534	2.46
UA 40×20×4	1.77	40	20	4	3.59	0.6	1.26	0.514	3.8	0.393	1.3	0.417	2.26
UA 30×20×4	1.46	30	20	4	1.59	0.553	0.925	0.546	1.81	0.33	0.988	0.421	1.86
UA 30×20×3	1.12	30	20	3	1.25	0.437	0.935	0.553	1.43	0.256	1	0.424	1.43

⁺ in addition to the range of BS 4 sections. ^# check availability.

39 sections · source: BS EN 1993-1-1:2005 / BS EN 10056-1:1999

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42 sections · BS EN 1993-1-1:2005 / BS EN 10056-1:1999

Equal Angles - Back to Back

33 sections · BS EN 1993-1-1:2005 / BS EN 10056-1:1999

Unequal Angles - Back to Back

32 sections · BS EN 1993-1-1:2005 / BS EN 10056-1:1999

Learn more

📘 How to read a steel section table (UB, UC, IPE, HE) →📘 Section modulus explained: elastic (Wel) vs plastic (Wpl) →

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