Rolled Steel Angle

Rolled Steel Angle - Unequal

Rolled Steel Angles – Unequal (RSA-u), often referred to simply as angle sections or L-sections, are formed with two legs of differing lengths. The “unequal” designation highlights this variation, making the section particularly useful in applications where one side needs to provide greater support or load-bearing capacity than the other.

These angles are frequently used in longer lengths as lintels, with the longer leg positioned vertically to maximise strength and improve load distribution. This configuration allows RSA-u sections to carry greater loads compared to equal angles in certain orientations. In addition to this, they are commonly cut into smaller pieces and drilled to create connection brackets or cleats, enabling beams and other members to be securely fixed together.

RSA-u sections are typically specified using a format such as 30 x 20 x 3 RSA. In this example, the first dimension (30mm) represents the longer leg, the second (20mm) the shorter leg, and the final figure (3mm) indicates the material thickness. This standard naming convention ensures clarity when selecting the appropriate section for structural and fabrication purposes.

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Size Chart

Type	Weight [kg/m]	Height [mm]	Width [mm]	Thickness [mm]
30 x 20 x 3 RSA	1,1	30	20	3
30 x 20 x 4 RSA	1,5	30	20	4
40 x 20 x 4 RSA	1,8	40	20	4
40 x 25 x 4 RSA	1,9	40	25	4
45 x 30 x 4 RSA	2,3	45	30	4
50 x 30 x 5 RSA	3,0	50	30	5
60 x 30 x 5 RSA	3,4	60	30	5
60 x 40 x 5 RSA	3,8	60	40	5
60 x 40 x 6 RSA	4,5	60	40	6
65 x 50 x 5 RSA	4,4	65	50	5
70 x 50 x 6 RSA	5,4	75	50	6
75 x 50 x 6 RSA	5,7	75	50	6
75 x 50 x 8 RSA	7,4	75	50	8
80 x 40 x 6 RSA	5,4	80	40	6
80 x 40 x 8 RSA	7,1	80	40	8
80 x 60 x 7 RSA	7,4	80	60	7
100 x 50 x 6 RSA	6,8	100	50	6
100 x 50 x 8 RSA	9,0	100	50	8
100 x 65 x 7 RSA	8,8	100	65	7
100 x 65 x 8 RSA	9,9	100	65	8
100 x 65 x 10 RSA	12,3	100	65	10
100 x 75 x 8 RSA	10,6	100	75	8
100 x 75 x 10 RSA	13,0	100	75	10
100 x 75 x 12 RSA	15,4	100	75	12
120 x 80 x 8 RSA	12,2	120	80	8
120 x 80 x 10 RSA	15,0	120	80	10
120 x 80 x12 RSA	17,8	120	80	12
125 x 75 x 8 RSA	12,2	125	75	8
125 x 75 x 10 RSA	15,0	125	75	10
125 x 75 x 12 RSA	17,8	125	75	12
135 x 65 x 8 RSA	12,2	135	65	8
135 x 65 x 10 RSA	15,0	135	65	10
150 x 75 x 9 RSA	15,4	150	75	9
150 x 75 x 10 RSA	17,0	150	75	10
150 x 75 x 12 RSA	20,2	150	75	12
150 x 75 x 15 RSA	24,8	150	75	15
150 x 90 x 10 RSA	18,2	150	90	10
150 x 90 x 12 RSA	21,6	150	90	12
150 x 90 x 15 RSA	26,6	150	90	15
150 x 100 x 10 RSA	19,0	150	100	10
150 x 100 x 12 RSA	22,5	150	100	12
200 x 100 x 10 RSA	23,0	200	100	10
200 x 100 x 12 RSA	27,3	200	100	12
200 x 100 x 15 RSA	33,7	200	100	15
200 x 150 x 12 RSA	32,0	200	150	12

Rolled Steel Angle - Unequal

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