🛠 Profile tube 40×40×4,0 mm — thick-walled square for major structures
40×40 mm profile tube with 4,0 mm wall thickness is the strongest version of 40×40 square. Electric-resistance-welded steel tube made from grade Ст3 (С235), weighing 4,52 kg/m due to its thick wall provides maximum load-bearing capacity and resistance to concentrated loads for this section. It is chosen for columns, support racks, heavy trusses and loaded frames in industrial construction.
🏗️ Main areas of application:
- Columns and support racks: vertical load-bearing elements for heavy loads.
- Heavy trusses and frames: constructions with significant efforts.
- Industrial metal structures: critical connection points with concentrated load.
- Reinforcement of existing structures: where a thick wall is required in a compact section.
✅ Advantages of the steel pipe from SteelStream
We supply profile tubes in standard 6 m lengths in accordance with ГОСТ 8639-82 / ДСТУ EN 10219. Guidance on selecting the section and wall thickness, weight, and installation is available in our Technical documentation.
- Exact weight: you pay for the actual linear length, without the lightweight wall.
- Honest Section: Real 40×40×4,0 mm, flat geometry for butt welding.
- Thick wall: the 4,0 mm wall provides the highest load-bearing capacity for the 40×40 section.
🚚 How to buy a profile tube?
We sell by the linear metre, the price is per metre.
- ✂️ Precise cutting: we cut lengths to the size according to your drawing for convenient transportation.
- 🚛 Fast delivery: we deliver in Kyiv, Vyshneve, Brovary and the region using our own vehicles.
- ⚖️ Pick-up: from the warehouse at a convenient time.
- 💳 Convenient payment: cash on delivery, card or cashless with VAT.
🔗 Recommended related products
- Profile tube 40x40x3,0 is the same square with a thinner wall for gates and trusses.
- Profile tube 60x60 — a larger square for long bearing spans.
- Channel section — for load-bearing beams and reinforcement of nodes.
📚 Useful materials from the blog
- How to optimize the frame budget — how to choose the section and thickness without overpaying for excess metal.
- Canopies and visors from a profile tube — which profile section can carry the load.
- Protection of steel pipes from corrosion — primers and paints for the durability of load-bearing structures.
👉 Go to profile tube catalog — all sections and wall thicknesses.