🛠 Profile tube 40×40×3,0 mm is the strongest square of its section
40×40 mm profile tube with 3,0 mm wall thickness is a reinforced version of the universal square. Electric-resistance-welded steel tube made from grade Ст3 (С235), weighing 3,49 kg/m, due to its thick wall, can withstand significant loads and sign-changing forces without deformation. It is chosen for heavy gates, support posts, trusses and columns of light structures, where the maximum load-bearing capacity is required from the profile.
🏗️ Main areas of application:
- Heavy swing gate: thick wall holds massive fill without sagging.
- Support racks of canopies and columns: vertical elements under heavy load.
- Farms and loaded frames: load-bearing structures with variable forces.
- Industrial metal structures: critical connection points under concentrated load.
✅ 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 40×40×3,0 mm, flat geometry for butt welding.
- Reinforced wall: 3,0 mm — maximum rigidity for cross-section 40×40.
🚚 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 40x40x2,0 is the same square with a thinner wall for a regular gate.
- Profile tube 50x50 — a larger square for long spans.
- Profile tube 60x60 is a heavy-duty square section for heavy supports.
📚 Useful materials from the blog
- Canopies and visors from a profile tube — which profile section can carry the load.
- How to choose a profile tube for a gate — practical sections and wall thickness for heavy gates.
- How to optimize the frame budget — how to choose a cross-section without overpaying for excess metal.
👉 Go to profile tube catalog — all sections and wall thicknesses.