Description
Hot-rolled seamless pipes are divided into general steel pipes, low and medium-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes, and other steel pipes. Hot rolling (extruded seamless steel pipe): round tube billet → heating → piercing → three-roll cross rolling, continuous rolling or extrusion → tube removal → sizing (or reducing) → cooling → billet tube → straightening → hydraulic pressure Test (or flaw detection) → marking → storage.
Application
- Solar shelves.
- Agricultural and dairy products.
- Greenhouse structure and equipment.
- Playground and entertainment equipment.
- Conveyor rollers.
- Garages and metal buildings.
- Trailer.
- Electrical appliances.
- Canopies and shade structures.
- Satellite dish support.
- Vinyl reinforced tubing.
- Various product applications.
Parameters
| Product Name | Hot Rolled Carbon Steel Pipe |
| Standard | AISI, ASTM, BS, DIN, EN, GB, JIS |
| Material | Q195, Q235A-B, Q345A-E, 20#, 10#,16Mn, ASTM A36,ASTM A500, ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH |
| OD | 3/8″-36″ |
| WT | 1.0-150mm |
| Length | 5.8m,6m,11.8m,12m |
| Surface | Black painting/varnished surface,anti-corrosion oil |
| Usages | liquid delivery (pump well, gas, water), construction pipe, structural pipe(greenhouse structure, fence post), curtain wall, machinery part |
| Package | In bundles, Nylon bags, wooden cases |
| MOQ | 1 Ton |
Features
Hot-rolled carbon steel pipe is a large category of carbon steel pipe, which is divided according to the production method. Hot rolling is relative to cold rolling. Cold rolling is rolling at room temperature, and hot rolling is rolling at recrystallization temperature. Seamless steel pipe is named relative to welded steel pipe. Hot-rolled carbon steel pipe is usually perforated and processed from round steel.
Welded steel pipe is usually welded by steel plate in different ways. The diameter of hot-rolled seamless steel pipe is usually above 38mm. Smaller diameter seamless steel pipes can be obtained by cold rolling or cold drawing. Hot-rolled carbon steel pipe is manufactured by hot-rolling technology. As the name suggests, the temperature of the rolled piece is high, so the deformation resistance is small and large deformation is achieved. Taking steel plate rolling as an example, the continuous casting slab generally has a thickness of about 230mm, and after passing through the rough rolling mill and the finishing mill, the final thickness is 1~20mm. At the same time, since the thickness of the steel plate is relatively small, the dimensional accuracy is relatively low, and shape problems are not easy to occur.
