Equal Angles EA

AS/NZS 3679.1

Hot-rolled angles with equal legs, used for bracing, lintels, cleats, trusses and edge trims. Dimensions, section properties, AS 4100 capacities and free DXF drawings for all 43 sizes.

Equal angles (EA) have two legs of the same length. They are used for bracing, truss members, lintels, cleats, edge trims, shelf angles and frames. Angle properties are given about the geometric x and y axes (parallel to the legs) and about the principal u and v axes. The minor principal axis (v) usually governs compression buckling of single angles.

Designations give leg × leg × nominal thickness. For several sizes the actual thickness differs from the nominal (e.g. "8" = 7.8 mm, "10" = 9.5 mm, "16" = 15.8 mm); the actual value is used in all calculations.

Dimension notation

Select any section in the table to open its page, with a dimensioned drawing, all section properties, AS 4100 capacities and a free DXF download for your CAD software.

Click a column heading to sort. Grade 300 capacities.

Designation	Mass kg/m	d mm	b mm	t mm	A_g mm²	I_x 10⁶mm⁴	Z_x 10³mm³	S_x 10³mm³	I_y 10⁶mm⁴	r_v mm	J 10³mm⁴	φN_s kN
200x200x26EA	76.8	200	200	26	9783	35.8	255	460	35.8	39.0	2191	2465
200x200x20EA	60.1	200	200	20	7659	28.8	201	363	28.8	39.3	1013	1930
200x200x18EA	54.4	200	200	18.0	6935	26.3	183	330	26.3	39.4	743	1748
200x200x16EA	48.7	200	200	16.0	6203	23.7	164	296	23.7	39.6	524	1675
200x200x13EA	40.0	200	200	13.0	5090	19.7	135	243	19.7	39.8	283	1303
150x150x19EA	42.1	150	150	19.0	5365	11.1	105	189	11.1	29.3	642	1352
150x150x16EA	35.4	150	150	15.8	4516	9.48	88.7	160	9.48	29.4	374	1219
150x150x12EA	27.3	150	150	12.0	3482	7.46	68.8	124	7.46	29.6	166	940
150x150x10EA	21.9	150	150	9.5	2785	6.04	55.2	99.9	6.04	29.8	83.0	717
125x125x16EA	29.1	125	125	15.8	3711	5.32	60.3	109	5.32	24.4	308	1002
125x125x12EA	22.5	125	125	12.0	2867	4.21	47.0	85.0	4.21	24.5	137	774
125x125x10EA	18.0	125	125	9.5	2295	3.42	37.8	68.4	3.42	24.7	68.7	661
125x125x8EA	14.9	125	125	7.8	1900	2.86	31.3	56.8	2.86	24.8	38.3	481
100x100x12EA	17.7	100	100	12.0	2259	2.08	29.3	53.2	2.08	19.5	108	610
100x100x10EA	14.2	100	100	9.5	1813	1.70	23.6	42.9	1.70	19.6	54.4	522
100x100x8EA	11.8	100	100	7.8	1502	1.42	19.6	35.7	1.42	19.7	30.4	433
100x100x6EA	9.16	100	100	6.0	1167	1.12	15.3	27.8	1.12	19.8	14.0	284
90x90x10EA	12.7	90	90	9.5	1623	1.22	18.9	34.4	1.22	17.6	48.7	467
90x90x8EA	10.6	90	90	7.8	1346	1.02	15.7	28.7	1.02	17.6	27.2	388
90x90x6EA	8.22	90	90	6.0	1047	0.805	12.3	22.4	0.805	17.8	12.5	284
75x75x10EA	10.5	75	75	9.5	1338	0.681	12.8	23.4	0.681	14.5	40.2	385
75x75x8EA	8.73	75	75	7.8	1112	0.575	10.7	19.5	0.575	14.6	22.5	320
75x75x6EA	6.81	75	75	6.0	867	0.455	8.35	15.3	0.455	14.7	10.4	250
75x75x5EA	5.27	75	75	4.6	672	0.355	6.44	11.8	0.355	14.8	4.72	167
65x65x10EA	9.02	65	65	9.5	1149	0.437	9.62	17.4	0.437	12.6	34.4	331
65x65x8EA	7.51	65	65	7.8	957	0.371	8.07	14.6	0.371	12.7	19.3	276
65x65x6EA	5.87	65	65	6.0	748	0.296	6.34	11.5	0.296	12.8	8.93	215
65x65x5EA	4.56	65	65	4.6	581	0.234	4.94	8.97	0.234	12.9	4.07	167
55x55x6EA	4.93	55	55	6.0	628	0.175	4.46	8.10	0.175	10.7	7.49	181
55x55x5EA	3.84	55	55	4.6	489	0.139	3.48	6.34	0.139	10.8	3.42	141
50x50x8EA	5.68	50	50	7.8	723	0.160	4.61	8.38	0.160	9.7	14.6	208
50x50x6EA	4.46	50	50	6.0	568	0.129	3.64	6.63	0.129	9.7	6.77	164
50x50x5EA	3.48	50	50	4.6	443	0.103	2.85	5.19	0.103	9.8	3.10	127
50x50x3EA	2.31	50	50	3.0	295	0.0694	1.89	3.46	0.0694	9.9	0.873	72
40x40x6EA	3.50	40	40	6.0	446	0.0631	2.26	4.12	0.0631	7.7	5.33	128
40x40x5EA	2.73	40	40	4.6	348	0.0505	1.77	3.24	0.0505	7.7	2.45	100
40x40x3EA	1.83	40	40	3.0	233	0.0344	1.18	2.17	0.0344	7.8	0.693	67
30x30x6EA	2.56	30	30	6.0	326	0.0247	1.21	2.22	0.0247	5.7	3.89	94
30x30x5EA	2.01	30	30	4.6	256	0.0200	0.951	1.76	0.0200	5.7	1.80	74
30x30x3EA	1.35	30	30	3.0	173	0.0138	0.635	1.18	0.0138	5.8	0.513	50
25x25x6EA	2.08	25	25	6.0	266	0.0135	0.807	1.49	0.0135	4.8	3.17	76
25x25x5EA	1.65	25	25	4.6	210	0.0110	0.638	1.19	0.0110	4.7	1.47	61
25x25x3EA	1.12	25	25	3.0	143	0.00765	0.426	0.802	0.00765	4.7	0.423	41

All EA DXFs (.zip) Table as CSV Compare sections

Frequently asked questions

Which axis governs angle buckling?: For a single angle in concentric compression, the minor principal axis (v-axis) has the smallest radius of gyration and usually governs. Real angle members are often loaded eccentrically through one leg; see AS 4100 and the ASI design guides.

Relevant Australian Standards

AS/NZS 3679.1:2016 Structural steel – Part 1: Hot-rolled bars and sections
Specifies chemical composition, mechanical properties and tolerances for hot-rolled universal beams and columns, channels, angles, flats and bars in Grades 300 and 350.
AS 4100:2020 Steel structures
The Australian design Standard for steel members and connections. Covers section classification (Section 5), member moment capacity including lateral-torsional buckling (5.6), shear (5.11), axial compression (Section 6), tension (Section 7) and combined actions (Section 8).
AS/NZS 1252.1:2016 High-strength steel fastener assemblies for structural engineering
Property class 8.8 structural bolts, nuts and washers used in bolted connections designed to AS 4100.
AS/NZS 2312.1:2014 & 2312.2:2014 Guide to the protection of structural steel against atmospheric corrosion
Part 1 covers protective paint coatings and Part 2 hot-dip galvanizing; both use the external surface areas given on each section page.

See all Australian Standards for structural steel.