Gnee Steel (Tianjin) Co., Ltd. is one of the most professional w18x35 w18x40 w18x45 w18x46 steel wide flange beam manufacturers and suppliers in China, also supports customized service. If you're going to buy w18x35 w18x40 w18x45 w18x46 steel wide flange beam made in China, welcome to get free sample from our factory. Quality products and low price are available.
w18x35 w18x40 w18x45 w18x46 steel wide flange beam
Section parameters and theoretical weight
| model | Weight (lbs/ft/kg/m) | Section Height (inches/mm) | Flange Width (inches/mm) | Web Thickness (inches/mm) |
|---|---|---|---|---|
| W18x35 w shape beam | 35 / 52.1 | 18 / 457 | 6.0 / 152 | 0.30 / 7.6 |
| W18x40 w flange beam | 40 / 59.5 | 18 / 457 | 7.0 / 178 | 0.35 / 8.9 |
| W18x45 h type beam | 45 / 67.1 | 18 / 457 | 7.5 / 191 | 0.43 / 10.9 |
| W18x46 h section beam | 46 / 68.5 | 18 / 457 | 11.2 / 285 | 0.43 / 10.9 |
Material and performance comparison
| Material grade | Yield Strength | tensile strength | Applicable scenarios |
|---|---|---|---|
| A36 | ≥36ksi (250MPa) | 58-80ksi | Ordinary building frame, non-load-bearing structure |
| A572 GR50 | ≥50ksi (345MPa) | ≥65ksi | Bridges, high-load industrial plants |
| A992 | ≥50-65ksi | ≥65ksi | Earthquake-resistant core components of high-rise buildings |
w flange beam application
Construction engineering: frame beams and columns of high-rise buildings (W18x46 h beam wide flange is suitable for spans > 15m due to its high bending stiffness); heavy crane beams in industrial plants (A572 GR50 material is recommended).
Bridge engineering: main beams and transverse supports (W18x45/W18x46 h section steel meets ASTM A709 standards).
Machinery manufacturing: heavy equipment brackets (W18x35/W18x40 h section beam lightweight design reduces installation costs).
Comparison with domestic and foreign standards
| American Standard Model | Similar to national standard model | Differences |
|---|---|---|
| W18x35 steel h beam | HN450×200×9×14 | The national standard flange is narrower and 8%-10% lighter |
| W18x46 h type steel beam | HW400×400×13×21 | The national standard cross section is wider and the torsion resistance is better |
