Angle steel transmission towers are overhead transmission line support structures with angle steel as the main component. Commonly used equal-leg angle steel (such as L50×5, L160×16) and unequal-leg angle steel (such as L100×80×8) are used, and the materials are mostly low-alloy high-strength steels such as Q235B Angle steel, Q345B/C/D Angle steel. Its L-shaped cross-section has advantages such as high flexural and torsional stiffness, convenient bolt connection, and low processing cost.
The design and manufacture of angle steel transmission towers usually follow national or regional power engineering standards and specifications to ensure their safety and reliability. Its main characteristics include:
Simple structure: Transmission towers are made of angle steel materials, with a simple and sturdy structure, suitable for transmission lines of medium voltage levels.
Convenient installation: The assembly and installation of angle steel transmission towers are relatively easy, and the construction and connection of the tower body can be completed quickly.
Strong weather resistance: Angle steel transmission towers usually undergo anti-corrosion treatment, such as hot-dip galvanizing, to improve their anti-oxidation, anti-corrosion, and weather resistance performance and extend their service life.
Lightweight design: Angle steel transmission towers adopt a lightweight design and optimized structure to reduce the overall weight and improve their wind resistance and seismic resistance capabilities.
We can provide products of the following specifications：
Available Grade, specification and uses
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Grade |
Specification |
Delivery Standard |
Features and Uses |
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Q235B |
∠50～∠360 |
GB/T 700,GB/T 1591 |
The negative deviation of national network standard size of angle steel is 50% of that in GB/T 706. South network standard steel and national network large angle steel require positive size deviation and high surface quality. Mainly used for the production of transmission line tower. |
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Q345B,Q345C |
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Q420B,Q420C |
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Q460B,Q460C |
Mechanical and technological properties for available Grade
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Grade |
Yield Strength ReL(MPa) Thickness,mm |
Tensile strength Rm/MPa |
Elongation A /% |
Longitudinal impact energy |
180° cold bending test |
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(20℃和0℃) KV2/J (20℃and 0℃) KV2/J |
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≤16 |
＞16～40 |
≤16 |
＞16～40 |
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Q235B |
≥235 |
≥225 |
370～500 |
≥26 |
27 |
d=a |
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Q345B/C |
≥345 |
≥335 |
470～630 |
≥20 |
34 |
d=2a |
d=3a |
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Q420B/C |
≥420 |
≥400 |
520～680 |
≥19 |
34 |
d=2a |
d=3a |
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Q460C |
≥460 |
≥440 |
550～720 |
≥17 |
34 |
d=2a |
d=3a |
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Note: 1. The Q235B yield strength is ReH; 2. The national networklarge angle steel's tensile strength has no upper limit. |
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We were founded in 2008 and have now developed into an integrated steel supply chain enterprise. After years of development, the company has a production, procurement, operation, sales, and management team of more than 200 people, a factory area of over 35,000 square meters. The company's steel products are exported to more than 200 countries and regions around the world and are widely used in many fields such as railway tracks, automotive bearings, ship anchor chains, petrochemicals, offshore engineering, nuclear power, and wind power.
Our team has rich experience and a powerful factory in producing various specifications of angle steel. In addition to the above - mentioned products, we also offer a wider range of steel products to meet different project requirements. If you have any needs, please contact us.beam@gneesteel.com