⚙️ 30×30 mm steel square bar - the heaviest stocked section for load-bearing applications
30×30 mm steel square bar is a heavy hot-rolled product made from Ст3пс/сп steel and the largest section in our stocked square-bar range. At seven kilograms of steel per metre, it is purchased not for frames but as a working component: a counterweight, stop, or milling blank. Its 9 cm² solid steel cross-section withstands crushing and impact where a hollow profile would collapse.
🏗️ Main applications:
- Counterweights and ballast: for barriers, gates, and lifting mechanisms, providing compact mass in a convenient shape.
- Heavy stops and impact guards: ramp stops, equipment limiters, and anti-underrun bars.
- Embedded foundation components: anchor elements for columns and supports for canopies and industrial frames.
- Machining blanks: slides, prisms, bars, and support plates. The section is close to the finished part size, reducing material waste.
✅ 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: 7.065 kg per metre according to the standard, with approximately 142 m per tonne; every batch is check-weighed.
- Ready for machining: straight faces without twist allow the blank to be clamped directly in a vice or on a milling table.
- Logistics for heavy loads: we cut bars into liftable lengths and dispatch them with a crane truck.
🚚 How to buy 30×30 square bar with delivery
Available from one bar at retail and by the tonne at wholesale prices for manufacturers.
- ✂️ Precision cutting: we cut blanks to your required size, from UAH 20 per cut; shorter lengths are easier to unload.
- ⚡ Welding services: we weld embedded parts or assemble a load-bearing unit to your drawing.
- 🚛 Prompt delivery: delivery across Kyiv, Vyshneve, Brovary, and the region; crane-truck unloading can be arranged when ordering.
- 💳 Convenient payment: cash on delivery, card, or cashless payment with VAT.
🔗 Recommended complementary products
- 20x20 square bar - a lighter load-bearing section for axles and stops.
- Steel sheet - plates for embedded components used with square bar.
- 30 mm steel round bar - a round alternative for axles and shafts.
👉 Browse the steel square bar catalogue - all sections from 8×8 to 30×30 mm. For a comparison of solid long products, see Square and round long products.