HEB 340 Wide-Flange Beam
HEB 340 Wide-Flange Beam: 340 mm deep and 300 mm wide, with a 12 mm web and 21.5 mm flanges, rolled to EN 10025 / EN 10365 in S235JR. It weighs 134 kg/m, so a 12 m length weighs about 1608 kg.
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Applications & Usage
HEB beams are standard H-sections used for columns, heavily loaded beams, transfer beams and crane runways; the thicker web and flanges carry more than an HEA of the same size. Standard lengths: 12m.
Technical Specifications
| Specification | Value |
|---|---|
| Dimensions | HEB 340 |
| Depth h | 340 mm (13.39 in) |
| Flange width b | 300 mm (11.81 in) |
| Web thickness tw | 12 mm |
| Flange thickness tf | 21.5 mm |
| Root radius r | 27 mm |
| Cross-sectional area A | 170.9 cm² |
| Weight per Meter | 134 kg/m (90 lb/ft) |
| Weight of a 12 m length | 1608 kg |
| Material | Steel |
| Alloy/Grade | S235JR |
| Standard | EN 10025 / EN 10365 |
| Full Stock Length | 12 m |
Section properties
| Property | y-y | z-z |
|---|---|---|
| Second moment of area I (cm⁴) | 36660 | 9690 |
| Elastic section modulus Wel (cm³) | 2156 | 646 |
| Plastic section modulus Wpl (cm³) | 2408 | 985.7 |
| Radius of gyration i (cm) | 14.65 | 7.53 |
HEB range: nominal dimensions in mm, mass in kg/m and major-axis (y-y) properties.
| Designation | h | b | tw | tf | kg/m | A (cm²) | Iy (cm⁴) | Wel,y (cm³) |
|---|---|---|---|---|---|---|---|---|
| HEB 100 | 100 | 100 | 6 | 10 | 20.4 | 26 | 449.5 | 89.91 |
| HEB 120 | 120 | 120 | 6.5 | 11 | 26.7 | 34 | 864.4 | 144.1 |
| HEB 140 | 140 | 140 | 7 | 12 | 33.7 | 43 | 1509 | 215.6 |
| HEB 160 | 160 | 160 | 8 | 13 | 42.6 | 54.3 | 2492 | 311.5 |
| HEB 180 | 180 | 180 | 8.5 | 14 | 51.2 | 65.3 | 3831 | 425.7 |
| HEB 200 | 200 | 200 | 9 | 15 | 61.3 | 78.1 | 5696 | 569.6 |
| HEB 220 | 220 | 220 | 9.5 | 16 | 71.5 | 91 | 8091 | 735.5 |
| HEB 240 | 240 | 240 | 10 | 17 | 83.2 | 106 | 11260 | 938.3 |
| HEB 260 | 260 | 260 | 10 | 17.5 | 93 | 118.4 | 14920 | 1148 |
| HEB 280 | 280 | 280 | 10.5 | 18 | 103 | 131.4 | 19270 | 1376 |
| HEB 300 | 300 | 300 | 11 | 19 | 117 | 149.1 | 25170 | 1678 |
| HEB 320 | 320 | 300 | 11.5 | 20.5 | 127 | 161.3 | 30820 | 1926 |
| HEB 340 | 340 | 300 | 12 | 21.5 | 134 | 170.9 | 36660 | 2156 |
| HEB 360 | 360 | 300 | 12.5 | 22.5 | 142 | 180.6 | 43190 | 2400 |
| HEB 400 | 400 | 300 | 13.5 | 24 | 155 | 197.8 | 57680 | 2884 |
| HEB 450 | 450 | 300 | 14 | 26 | 171 | 218 | 79890 | 3551 |
| HEB 500 | 500 | 300 | 14.5 | 28 | 187 | 238.6 | 107200 | 4287 |
| HEB 550 | 550 | 300 | 15 | 29 | 199 | 254.1 | 136700 | 4971 |
| HEB 600 | 600 | 300 | 15.5 | 30 | 212 | 270 | 171000 | 5701 |
| HEB 650 | 650 | 300 | 16 | 31 | 225 | 286.3 | 210600 | 6480 |
| HEB 700 | 700 | 300 | 17 | 32 | 241 | 306.4 | 256900 | 7340 |
| HEB 800 | 800 | 300 | 17.5 | 33 | 262 | 334.2 | 359100 | 8977 |
| HEB 900 | 900 | 300 | 18.5 | 35 | 291 | 371.3 | 494100 | 10980 |
| HEB 1000 | 1000 | 300 | 19 | 36 | 314 | 400 | 644700 | 12890 |
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Technical guides
Steel beam and channel sizes and weights: HEA, HEB, IPE, IPN, UPN and UPE tables (EN 10365)
Steel beam sizes in mm for European I-beams (IPE, IPN), H-beams (HEA, HEB) and UPN/UPE channels to EN 10365: dimensions, weight in kg/m, area, Iy and Wel,y.
Read the guide →H-beam vs I-beam: differences, designations and when to use each
How H-beams (HEA, HEB) and I-beams (IPE, IPN) differ in shape, weight and strength, how European, UK and US designations compare, and which to choose for beams and columns.
Read the guide →Structural steel grades: S235JR, S275JR, S355JR, S355J2 and ASTM A36, A572 and A992 compared
Minimum yield and tensile strength, impact test temperatures and carbon equivalent of EN 10025-2 grades S235JR, S275JR, S355JR and S355J2, the old St37 and St52 names, and how ASTM A36, A572 Grade 50 and A992 compare.
Read the guide →