Properties - Unequal Angles

Welcome to our Unequal Angle properties page! Here you'll find properties for all UK Unequal Angle steel sections described by the Steelwork Design Guide to BS5950-1:2000, Volume 1, Section Properties, Member Capacities, 7th Edition (also known as The Blue Book). Sort the table below according to any property and select a CAD file to download using the reference links in the left-most column.

You can also purchase all our CAD data in one easy download, containing the shapes as individual files or AutoCAD Design Center files! Click here to visit our Shop.

Section Reference	Dimension		Second Moment of Area				Radius of Gyration				Elastic Modulus		Angle Axis x-x to u-u	Torsional Constant	Equivalent Slenderness Coefficient		Mono-symmetry Index	Area of Section
			Axis x-x	Axis y-y	Axis u-u	Axis v-v	Axis x-x	Axis y-y	Axis u-u	Axis v-v	Axis x-x	Axis y-y			Min	Max
	c_x	c_y	cm⁴	cm⁴	cm⁴	cm⁴	cm	cm	cm	cm	cm³	cm³	Tan α	J cm⁴	φ_a	φ_a	ψ_a	cm²
200x150x18	6.33	3.85	2380	1150	2920	623	6.29	4.37	6.97	3.22	174	103	0.549	67.9	2.93	3.72	4.60	60.0
200x150x15	6.21	3.73	2020	979	2480	526	6.33	4.4	7	3.23	147	86.9	0.551	39.9	3.53	4.50	5.55	50.5
200x150x12	6.08	3.61	1650	803	2030	430	6.36	4.44	7.04	3.25	119	70.5	0.552	20.9	4.43	5.70	6.97	40.8
200x100x15	7.16	2.22	1760	299	1860	193	6.4	2.64	6.59	2.12	137	38.5	0.260	34.3	3.54	5.17	9.19	43.0
200x100x12	7.03	2.1	1440	247	1530	159	6.43	2.67	6.63	2.14	111	31.3	0.262	18.0	4.42	6.57	11.5	34.8
200x100x10	6.93	2.01	1220	210	1290	135	6.46	2.68	6.65	2.15	93.2	26.3	0.263	10.66	5.26	7.92	13.9	29.2
150x90x15	5.21	2.23	761	205	841	126	4.74	2.46	4.98	1.93	77.7	30.4	0.354	26.8	2.58	3.59	5.96	33.9
150x90x12	5.08	2.12	627	171	694	104	4.77	2.49	5.02	1.94	63.3	24.8	0.358	14.1	3.24	4.58	7.50	27.5
150x90x10	5	2.04	533	146	591	88.3	4.8	2.51	5.05	1.95	53.3	21.0	0.360	8.30	3.89	5.56	9.03	23.2
150x75x15	5.52	1.81	713	119	753	78.6	4.75	1.94	4.88	1.58	75.2	21.0	0.253	25.1	2.62	3.74	6.84	31.7
150x75x12	5.4	1.69	588	99.6	623	64.7	4.78	1.97	4.92	1.59	61.3	17.1	0.258	13.2	3.30	4.79	8.60	25.7
150x75x10	5.31	1.61	501	85.6	531	55.1	4.81	1.99	4.95	1.6	51.6	14.5	0.261	7.80	3.95	5.83	10.4	21.7
125x75x12	4.31	1.84	354	95.5	391	58.5	3.95	2.05	4.15	1.61	43.2	16.9	0.354	11.6	2.66	3.73	6.23	22.7
125x75x10	4.23	1.76	302	82.1	334	49.9	3.97	2.07	4.18	1.61	36.5	14.3	0.357	6.87	3.21	4.55	7.50	19.1
125x75x8	4.14	1.68	247	67.6	274	40.9	4	2.09	4.21	1.63	29.6	11.6	0.360	3.62	4.00	5.75	9.43	15.5
100x75x12	3.27	2.03	189	90.2	230	49.5	3.1	2.14	3.42	1.59	28.0	16.5	0.540	10.05	2.10	2.64	3.46	19.7
100x75x10	3.19	1.95	162	77.6	197	42.2	3.12	2.16	3.45	1.59	23.8	14.0	0.544	5.95	2.54	3.22	4.17	16.6
100x75x8	3.1	1.87	133	64.1	162	34.6	3.14	2.18	3.47	1.6	19.3	11.4	0.547	3.13	3.18	4.08	5.24	13.5
100x65x10	3.36	1.63	154	51	175	30.1	3.14	1.81	3.35	1.39	23.2	10.5	0.410	5.61	2.52	3.43	5.45	15.6
100x65x8	3.27	1.55	127	42.2	144	24.8	3.16	1.83	3.37	1.4	18.9	8.54	0.413	2.96	3.14	4.35	6.86	12.7
100x65x7	3.23	1.51	113	37.6	128	22	3.17	1.83	3.39	1.4	16.6	7.53	0.415	2.02	3.58	5.00	7.85	11.2
100x50x8	3.6	1.13	116	19.7	123	12.8	3.19	1.31	3.28	1.06	18.2	5.08	0.258	2.61	3.30	4.80	8.61	11.4
100x50x6	3.51	1.05	89.9	15.4	95.4	9.92	3.21	1.33	3.31	1.07	13.8	3.89	0.262	1.14	4.38	6.52	11.6	8.71
80x60x7	2.51	1.52	59	28.4	72	15.4	2.51	1.74	2.77	1.28	10.7	6.34	0.546	1.66	2.92	3.72	4.78	9.38
80x40x8	2.94	0.963	57.6	9.61	60.9	6.34	2.53	1.03	2.6	0.838	11.4	3.16	0.253	2.05	2.61	3.73	6.85	9.01
80x40x6	2.85	0.884	44.9	7.59	47.6	4.93	2.55	1.05	2.63	0.845	8.73	2.44	0.258	0.899	3.48	5.12	9.22	6.89
75x50x8	2.52	1.29	52	18.4	59.6	10.8	2.35	1.4	2.52	1.07	10.4	4.95	0.430	2.14	2.36	3.18	4.92	9.41
75x50x6	2.44	1.21	40.5	14.4	46.6	8.36	2.37	1.42	2.55	1.08	8.01	3.81	0.435	0.935	3.18	4.34	6.60	7.19
70x50x6	2.23	1.25	33.4	14.2	39.7	7.92	2.2	1.43	2.4	1.07	7.01	3.78	0.500	0.899	2.96	3.89	5.44	6.89
65x50x5	1.99	1.25	23.2	11.9	28.8	6.32	2.05	1.47	2.28	1.07	5.14	3.19	0.577	0.498	3.38	4.26	5.08	5.54
60x40x6	2	1.01	20.1	7.12	23.1	4.16	1.88	1.12	2.02	0.855	5.03	2.38	0.431	0.735	2.51	3.39	5.26	5.68
60x40x5	1.96	0.972	17.2	6.11	19.7	3.54	1.89	1.13	2.03	0.86	4.25	2.02	0.434	0.435	3.02	4.11	6.34	4.79
60x30x5	2.17	0.684	15.6	2.63	16.5	1.71	1.91	0.784	1.97	0.633	4.07	1.14	0.257	0.382	3.15	4.56	8.26	4.28
50x30x5	1.73	0.741	9.36	2.51	10.3	1.54	1.57	0.816	1.65	0.639	2.86	1.11	0.352	0.340	2.51	3.52	5.99	3.78
45x30x4	1.48	0.74	5.78	2.05	6.65	1.18	1.42	0.85	1.52	0.64	1.91	0.910	0.436	0.166	2.85	3.87	5.92	2.87
40x25x4	1.36	0.623	3.89	1.16	4.35	0.7	1.26	0.687	1.33	0.534	1.47	0.619	0.380	0.142	2.51	3.48	5.75	2.46
40x20x4	1.47	0.48	3.59	0.6	3.8	0.393	1.26	0.514	1.3	0.417	1.42	0.393	0.252	0.131	2.57	3.68	6.86	2.26
30x20x4	1.03	0.541	1.59	0.553	1.81	0.33	0.925	0.546	0.988	0.421	0.807	0.379	0.421	0.1096	1.79	2.39	3.95	1.86
30x20x3	0.99	0.502	1.25	0.437	1.43	0.256	0.935	0.553	1	0.424	0.621	0.292	0.427	0.0486	2.40	3.28	5.31	1.43