Equal angles (EN 10056-1): L 50x50x5, L 100x100x10, L 20x20x3 to L 250x250x35 dimensions + STEP/STL — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/en-10056-equal-angles/ (sheet CC BY 4.0) Basis: EN 10056-1 table values (r1, r2, t, area) as reproduced by Roymech and British Steel Catalog version: 2026-10-20 Overall (mm): length 100.0 - Equal leg hot-rolled angles to EN 10056-1: L 50x50x5 has legs of the sizes shown and a thickness t in mm. Each size has a root radius r1 and a toe radius r2 (about r1/2) printed in the standard's table. - r1 and r2 are from Roymech's reproduction of the EN 10056-1 table (checked against British Steel's datasheet for 120 to 200 mm); the standard itself is paywalled. r2 is drawn on the inner corner at the end of each leg only; the drawn area matches the published area within 2 % on every drawn size, which confirms that placement. - Files are 100 mm long extrusions along X with the heel at the origin: leg a along +y, leg b along +z. - 24 of the 66 sizes have files; all sizes are in the table. size (mm) mass (kg/m) leg a (mm) leg b (mm) t (mm) r1 (mm) r2 (mm) area (cm2) 250x250x35 128.0 250.0 250.0 35.0 18.0 9.0 163.0 250x250x32 118.0 250.0 250.0 32.0 20.0 10.0 150.0 250x250x28 104.0 250.0 250.0 28.0 18.0 9.0 133.0 250x250x25 93.6 250.0 250.0 25.0 20.0 10.0 119.0 200x200x24 71.1 200.0 200.0 24.0 18.0 9.0 90.6 200x200x20 59.9 200.0 200.0 20.0 18.0 9.0 76.3 200x200x18 54.2 200.0 200.0 18.0 18.0 9.0 69.1 200x200x16 48.5 200.0 200.0 16.0 18.0 9.0 61.8 180x180x18 48.6 180.0 180.0 18.0 18.0 9.0 61.9 180x180x16 43.5 180.0 180.0 16.0 18.0 9.0 55.4 160x160x15 36.2 160.0 160.0 15.0 17.0 8.5 46.1 150x150x18 40.1 150.0 150.0 18.0 16.0 8.0 51.0 150x150x15 33.8 150.0 150.0 15.0 16.0 8.0 43.0 150x150x12 27.3 150.0 150.0 12.0 16.0 8.0 34.8 150x150x10 23.0 150.0 150.0 10.0 16.0 8.0 29.3 130x130x12 23.5 130.0 130.0 12.0 14.0 7.0 30.0 120x120x15 26.6 120.0 120.0 15.0 13.0 6.5 33.9 120x120x12 21.6 120.0 120.0 12.0 13.0 6.5 27.5 120x120x10 18.2 120.0 120.0 10.0 13.0 6.5 23.2 120x120x8 14.7 120.0 120.0 8.0 13.0 6.5 18.7 100x100x15 21.9 100.0 100.0 15.0 12.0 6.0 27.9 100x100x12 17.8 100.0 100.0 12.0 12.0 6.0 22.7 100x100x10 15.0 100.0 100.0 10.0 12.0 6.0 19.2 100x100x8 12.2 100.0 100.0 8.0 12.0 6.0 15.5 90x90x12 15.9 90.0 90.0 12.0 11.0 5.5 20.3 90x90x10 13.4 90.0 90.0 10.0 11.0 5.5 17.1 90x90x9 12.2 90.0 90.0 9.0 11.0 5.5 15.5 90x90x8 10.9 90.0 90.0 8.0 11.0 5.5 13.9 90x90x7 9.61 90.0 90.0 7.0 11.0 5.5 12.2 90x90x6 8.3 90.0 90.0 6.0 11.0 5.5 10.6 80x80x10 11.9 80.0 80.0 10.0 10.0 5.0 15.1 80x80x8 9.63 80.0 80.0 8.0 10.0 5.0 12.3 80x80x6 7.34 80.0 80.0 6.0 10.0 5.0 9.35 75x75x8 8.99 75.0 75.0 8.0 9.0 4.5 11.4 75x75x6 6.85 75.0 75.0 6.0 9.0 4.5 8.73 70x70x10 10.3 70.0 70.0 10.0 9.0 4.5 13.1 70x70x8 8.36 70.0 70.0 8.0 9.0 4.5 10.6 70x70x7 7.38 70.0 70.0 7.0 9.0 4.5 9.4 70x70x6 6.38 70.0 70.0 6.0 9.0 4.5 8.13 65x65x7 6.83 65.0 65.0 7.0 9.0 4.5 8.7 60x60x10 8.69 60.0 60.0 10.0 8.0 4.0 11.1 60x60x8 7.09 60.0 60.0 8.0 8.0 4.0 9.03 60x60x6 5.42 60.0 60.0 6.0 8.0 4.0 6.91 60x60x5 4.57 60.0 60.0 5.0 8.0 4.0 5.82 50x50x8 5.82 50.0 50.0 8.0 7.0 3.5 7.41 50x50x6 4.47 50.0 50.0 6.0 7.0 3.5 5.69 50x50x5 3.77 50.0 50.0 5.0 7.0 3.5 4.8 50x50x4 3.06 50.0 50.0 4.0 7.0 3.5 3.89 50x50x3 2.33 50.0 50.0 3.0 7.0 3.5 2.96 45x45x6 4.0 45.0 45.0 6.0 7.0 3.5 5.09 45x45x5 3.38 45.0 45.0 5.0 7.0 3.5 4.3 45x45x4.5 3.06 45.0 45.0 4.5 7.0 3.5 3.9 45x45x4 2.74 45.0 45.0 4.0 7.0 3.5 3.49 45x45x3 2.09 45.0 45.0 3.0 7.0 3.5 2.66 40x40x6 3.52 40.0 40.0 6.0 6.0 3.0 4.48 40x40x5 2.97 40.0 40.0 5.0 6.0 3.0 3.79 40x40x4 2.42 40.0 40.0 4.0 6.0 3.0 3.08 40x40x3 1.84 40.0 40.0 3.0 6.0 3.0 2.35 35x35x4 2.09 35.0 35.0 4.0 5.0 2.5 2.67 30x30x5 2.18 30.0 30.0 5.0 5.0 2.5 2.78 30x30x4 1.78 30.0 30.0 4.0 5.0 2.5 2.27 30x30x3 1.36 30.0 30.0 3.0 5.0 2.5 1.74 25x25x5 1.78 25.0 25.0 5.0 3.5 1.75 2.26 25x25x4 1.45 25.0 25.0 4.0 3.5 1.75 1.85 25x25x3 1.12 25.0 25.0 3.0 3.5 1.75 1.42 20x20x3 0.882 20.0 20.0 3.0 3.5 1.75 1.12 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Roymech: Equal leg angles to EN 10056-1: size, thickness, r1, r2, mass, area — web — Publisher's page; dimensions are facts — https://roymech.org/Useful_Tables/Sections/AngleA_dim_prop.html - British Steel: Equal angles datasheet (BS EN 10056-1): 120 to 200 mm legs, r1 and r2 (agrees with Roymech) — web — Publisher's page; dimensions are facts — https://www.britishsteel.co.uk/wp-content/uploads/2026/02/british-steel-equal-angles-datasheet.pdf Free files (CC BY 4.0, Xem Studio; STEP + STL, 24 parts): https://xemstudio.com/files/hardware/en-10056-equal-angles/index.json API: https://xemstudio.com/api/geometry?object=en-10056-equal-angles