
Hot-Pressed Rolled Steel Angle Beams
RSA-E (Equal)
The legs on an RSA-E steel beam are the same length and form a right angle. RSA-E steel beams are often used for brackets in cleat connections, as well as for lintels (two angles bolted back-to-back) in balconies, platforms, stairs, and concrete supports.
RSA-U (Unequal)
The legs on an RSA-U steel beam are not the same length, forming a right angle. When describing RSA-U beam dimensions, the longer leg is given first.
With the longer leg in a vertical position, RSA-U beams feature greater loading capabilities than RSA-E beams. RSA-U is, similar to RSA-E, optimal for use in cleat connections as brackets, and for lintels in balconies, platforms, stairs, and concrete supports.
Custom RSA-E and RSA-U Steel Beam Dimensions
STEELO offers quality RSA steel beams in dimensions cut to your project’s exact requirements, including:
-Weights from: 0.9kg/m – 128kg/m
-Heights from: 20mm – 250mm
-Widths from: 20mm –250mm
-Thicknesses from: 3mm – 35mm
Explore our full range of size, weight, and thickness options below.
| Type | Weight [kg/m] | Height [mm] | Width [mm] | Thickness [mm] | ||
|---|---|---|---|---|---|---|
| 01 | 20 x 20 x 3 RSA | 0.9 | 20 | 20 | 3 | |
| 02 | 25 x 25 x 3 RSA | 1.1 | 25 | 25 | 3 | |
| 03 | 25 x 25 x 4 RSA | 1.5 | 25 | 25 | 4 | |
| 04 | 25 x 25 x 5 RSA | 1.8 | 25 | 25 | 5 | |
| 05 | 30 x 30 x 3 RSA | 1.4 | 30 | 30 | 3 | |
| 06 | 30 x 30 x 4 RSA | 1.8 | 30 | 30 | 4 | |
| 07 | 30 x 30 x 5 RSA | 2.2 | 30 | 30 | 5 | |
| 08 | 35 x 35 x 4 RSA | 2.1 | 35 | 35 | 4 | |
| 09 | 40 x 40 x 3 RSA | 1.8 | 40 | 40 | 3 | |
| 10 | 40 x 40 x 4 RSA | 2.4 | 40 | 40 | 4 | |
| 11 | 40 x 40 x 5 RSA | 3.0 | 40 | 40 | 5 | |
| 12 | 40 x 40 x 6 RSA | 3.5 | 40 | 40 | 6 | |
| 13 | 45 x 45 x 3 RSA | 2.1 | 45 | 45 | 3 | |
| 14 | 45 x 45 x 4 RSA | 2.7 | 45 | 45 | 4 | |
| 15 | 45 x 45 x 5 RSA | 3.4 | 45 | 45 | 5 | |
| 16 | 45 x 45 x 6 RSA | 4.0 | 45 | 45 | 6 | |
| 17 | 50 x 50 x 3 RSA | 2.3 | 50 | 50 | 3 | |
| 18 | 50 x 50 x 4 RSA | 3.1 | 50 | 50 | 4 | |
| 19 | 50 x 50 x 5 RSA | 3.8 | 50 | 50 | 5 | |
| 20 | 50 x 50 x 6 RSA | 4.5 | 50 | 50 | 6 | |
| 21 | 50 x 50 x 8 RSA | 5.8 | 50 | 50 | 8 | |
| 22 | 60 x 60 x 5 RSA | 4.6 | 60 | 60</ | 22 | 5 |
| 23 | 60 x 60 x 6 RSA | 5.4 | 60 | 60 | 6 | |
| 24 | 60 x 60 x 8 RSA | 7.1 | 60 | 60 | 8 | |
| 25 | 60 x 60 x 10 RSA | 8.7 | 60 | 60 | 10 | |
| 26 | 65 x 65 x 7 RSA | 6.8 | 65 | 65 | 7 | |
| 27 | 70 x 70 x 6 RSA | 6.4 | 70 | 70 | 6 | |
| 28 | 70 x 70 x 8 RSA | 7.4 | 70 | 70 | 7 | |
| 29 | 70 x 70 x 7 RSA | 8.4 | 70 | 70 | 8 | |
| 30 | 70 x 70 x 10 RSA | 10.3 | 70 | 70 | 10 | |
| 31 | 75 x 75 x 6 RSA | 6.9 | 75 | 75 | 6 | |
| 32 | 75 x 75 x 8 RSA | 9.0 | 75 | 75 | 8 | |
| 33 | 80 x 80 x 6 RSA | 7.3 | 80 | 80 | 6 | |
| 34 | 80 x 80 x 8 RSA | 9.6 | 80 | 80 | 8 | |
| 35 | 80 x 80 x 10 RSA | 11.9 | 80 | 80 | 10 | |
| 36 | 90 x 90 x 6 RSA | 8.3 | 90 | 90 | 6 | |
| 37 | 90 x 90 x 7 RSA | 9.6 | 90 | 90 | 7 | |
| 38 | 90 x 90 x 8 RSA | 10.9 | 90 | 90 | 8 | |
| 39 | 90 x 90 x 9 RSA | 12.2 | 90 | 90 | 9 | |
| 40 | 90 x 90 x 10 RSA | 13.4 | 90 | 90 | 10 | |
| 41 | 90 x 90 x 12 RSA | 15.9 | 90 | 90 | 12 | |
| 42 | 100 x 100 x 8 RSA | 12.2 | 100 | 100 | 8 | |
| 43 | 100 x 100 x 10 RSA | 15.0 | 100 | 100 | 10 | |
| 44 | 100 x 100 x 12 RSA | 17.8 | 100 | 100 | 12 | |
| 45 | 100 x 100 x 15 RSA | 21.9 | 100 | 100 | 15 | |
| 46 | 120 x 120 x 8 RSA | 14.7 | 120 | 120 | 8 | |
| 47 | 120 x 120 x 10 RSA | 18.2 | 120 | 120 | 10 | |
| 48 | 120 x 120 x 12 RSA | 21.6 | 120 | 120 | 12 | |
| 49 | 120 x 120 x 15 RSA | 26.6 | 120 | 120 | 15 | |
| 50 | 130 x 130 x 12 RSA | 23.5 | 130 | 130 | 12 | |
| 51 | 150 x 150 x 10 RSA | 23.0 | 150 | 150 | 10 | |
| 52 | 150 x 150 x 12 RSA | 27.3 | 150 | 150 | 12 | |
| 53 | 150 x 150 x 15 RSA | 33.8 | 150 | 150 | 15 | |
| 54 | 150 x 150 x 18 RSA | 40.1 | 150 | 150 | 18 | |
| 55 | 160 x 160 x 15 RSA | 36.2 | 160 | 160 | 15 | |
| 56 | 180 x 180 x 16 RSA | 43.5 | 180 | 180 | 16 | |
| 57 | 180 x 180 x 18 RSA | 48.6 | 180 | 180 | 18 | |
| 58 | 200 x 200 x 16 RSA | 48.5 | 200 | 200 | 16 | |
| 59 | 200 x 200 x 18 RSA | 54.2 | 200 | 200 | 18 | |
| 60 | 200 x 200 x 20 RSA | 59.9 | 200 | 200 | 20 | |
| 61 | 200 x 200 x 24 RSA | 71.1 | 200 | 200 | 24 | |
| 62 | 250 x 250 x 25 RSA | 93.6 | 250 | 250 | 25 | |
| 63 | 250 x 250 x 28 RSA | 104.0 | 250 | 250 | 28 | |
| 64 | 250 x 250 x 32 RSA | 118.0 | 250 | 250 | 32 | |
| 65 | 250 x 250 x 35 RSA | 128.0 | 250 | 250 | 35 |
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Our Hassle Free and Simple 4 Step Process

Free rolled steel angle quotation
Planning and design process
Bespoke RSA steel production
Fast delivery to London and home counties
Why Choose STEELO For RSA Structural Steel?
- Unrivalled Quality: Our RSA steel beams are manufactured using top-grade materials, ensuring utmost durability and strength.
- Precise Engineering: Our advanced engineering capabilities guarantee precise, custom-fit solutions that meet the most demanding construction projects.
- Wide Range of Options: Our extensive range includes other structural steel beams, as well as options for steel structures, connections, and finishes.
Competitive Prices: We always offer exceptional value with competitively priced structural steel fabrication, delivering superior quality without exceeding your budget.
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RSA Structural Steel Beam FAQs
-
What does RSA Steel Stand For?
In the structural steel industry, RSA stands for Rolled Steel Angle, which describes a type of steel beam shape. There is also RSA-E and RSA-U, which stand for ‘Equal’ and ‘Unequal’ RSA beams, each. -
What’s the difference between RSA-E and RSA-U?
All RSA beams form a right angle between two legs of steel, but the two types make different shapes:
- RSA-E features equal-length legs, forming a box-like shape
- RSA-U features legs of different lengths, forming an L-shape
-
What is Hot-Rolled RSA Steel?
Hot-roll is a method of structural steel fabrication where steel is rolled into shape at incredibly high temperatures. This allows for larger-sized fabrications than usual and has the advantage of naturally cooling after pressing. -
Can I Have Holes Put In My RSA Beam?
Yes, STEELO offers bespoke fabrication of RSA steel beams, structures, and connectors, allowing you to customise the dimensions and features of components as necessary. -
What is a Rolled Steel Angle (RSA) Beam?
RSA structural steel beams are used primarily for cleats and connections. There are two types of RSA steel beam:
- RSA-E: Featuring equal-length legs
- RSA-U: Featuring unequal-length legs