⚙️ 18 mm steel round bar - torsion shafts, spindles, and levers
18 mm steel round bar is hot-rolled long product used to make components subject to substantial torsional loads. At 2 kg of steel per metre, this is more than a simple axle: it is a blank for a drive shaft, spindle, or heavy-duty lever. Steel grade is critical for these assemblies: grade 45 steel with hardening is used for cyclic torsion, rather than softer Ст3.
🏗️ Main applications:
- Torsion shafts: drive shafts, spindles, and mechanism torsion bars made from grade 45 steel.
- Heavy-duty levers and tie rods: components subject to increased bending and tensile loads.
- Wheel and drum axles: rotating parts for heavy machinery and equipment.
- Large M18 studs and anchors: critical threaded fasteners for support assemblies.
✅ Advantages of SteelStream products
We supply certified round bar in accordance with ДСТУ 4738 (the complete weight table and steel grades are available in the Technical documentation).
- Steel grade selection: Ст3 for welded supports and grade 45 for shafts subject to torsion and wear, supplied with a heat certificate.
- Accurate weight: exactly 2.000 kg per metre to the standard, or 500 m per tonne, making batch calculations straightforward.
- Ready for machining: a straight bar without twist, with a predictable machining allowance.
🚚 How to buy 18 mm round bar with delivery
Available from one bar for retail orders and by the tonne for manufacturers.
- ✂️ Precision cutting: shaft blanks cut to size, from UAH 15 per cut.
- 🔄 Metal bending: levers and bent components made to your drawing.
- 🚛 Fast delivery: Kyiv, Vyshneve, Brovary, and the region using our own vehicles.
- 💳 Convenient payment: cash on delivery, card, or bank transfer with VAT.
🔗 Recommended related products
- 16 mm round bar - a thinner rod for shafts and moderately loaded levers.
- 20 mm round bar - the next diameter for heavier-duty axles.
- 20x20 square bar - a faceted alternative for stops and heavy forging.
👉 Browse the steel round bar catalogue - all diameters from 8 to 65 mm. Read “Square and round steel products” to learn when to choose round bar or square bar.