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Hot-rolled steel square bar 20×20 mm

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20×20 mm steel square bar - solid long product for axles, stops, and forged gates.

Specifications

Cross-section20×20 мм
Length6 or 12 m
Steel gradeСт3пс/сп
Product typeHot-rolled
StandardДСТУ 4747:2007 (ГОСТ 2591)
Weight per metre3.140 kg
Metres per tonne≈ 318 м
Price114.72 UAH/м

⚙️ 20×20 mm steel square bar - solid steel for axles, stops, and heavy forging

20×20 mm steel square bar is a hot-rolled product made from Ст3пс/сп steel, selected when the solid material itself, rather than a hollow profile’s geometry, must carry the load. At more than three kilograms of steel per metre, this section is suitable for components subject to impact, pressure, and crushing loads that hollow tube cannot withstand. Do not confuse it with 20×20 hollow section: despite similar search terms, these are fundamentally different products (see the comparison in our guide).

🏗️ Main applications:

  • Axles, stops, and slides: mechanism and tooling components subject to crushing and shear.
  • Embedded and anchor components: parts cast into foundations and used to secure structures.
  • Heavy decorative forging: frames and spearheads for large gates, balusters, and finials, produced by hot forging in a forge.
  • Load-bearing barriers: impact guards, gate stops, and anti-underrun barriers on ramps and in car parks.

✅ Advantages of SteelStream’s steel products

We supply certified square bar in accordance with ДСТУ 4747:2007 (complete weight and tolerance tables are available in the Technical documentation).

  • Accurate weight: 3.140 kg per metre according to the standard, with approximately 318 m per tonne; products are weighed before dispatch.
  • Solid cross-section: withstands point impacts and crushing loads that hollow sections are not designed for.
  • Convenient lengths: bars are supplied in 6 and 12 m lengths; we can cut shorter blanks for forging.

🚚 How to buy 20×20 square bar with delivery

Available from one bar at retail and by the tonne at wholesale prices for forging shops.

  1. ✂️ Precision cutting: we cut uniform blanks for forging or embedded components, from UAH 15 per cut.
  2. ⚡ Welding services: we weld embedded parts or assemble a unit to your drawing.
  3. 🚛 Prompt delivery: delivery across Kyiv, Vyshneve, Brovary, and the region; due to the heavy load, unloading arrangements must be agreed in advance.
  4. 💳 Convenient payment: cash on delivery, card, or cashless payment with VAT.

👉 Browse the steel square bar catalogue - all sections from 8×8 to 30×30 mm. For an explanation of how solid long products differ by cross-sectional shape, see Square and round long products.

Frequently asked questions

How much does one metre of 20x20 square bar weigh? +
According to the ДСТУ 4747:2007 range, the theoretical weight of 1 linear metre of 20×20 mm square bar is 3.140 kg. One tonne contains approximately 318 metres of this product, and a 6 m bar weighs about 18.8 kg.
Do I need 20x20 square bar or 20x20 hollow section? +
These are different products. Square bar is solid steel weighing 3.14 kg/m, while the tube is a hollow section with a wall thickness and weighs about 1.1 kg/m. Choose hollow section for lightweight frames, fence rails, and furniture, and solid square bar for forging, axles, stops, and embedded components. A hollow section will collapse under these loads.
Can 20x20 square bar be forged, and what is it used for? +
Yes, but only by hot forging after heating in a forge. The 20 mm size is a standard blank for heavy decorative forging, including frames and spearheads for large gates, stair balusters, and fence finials. This section cannot be manually deformed in the cold state.
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