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Help CenterFactory Supply Hot Rolled Mild Steel Square Bar Solid Square Steel Billets for General Structural Projects
Product Spotlights
Precise dimension tolerance, excellent straightness, less waste during processing
Multiple grades: Q235, A36, S235JR, SS400, 45#, 1045
Superior tensile strength and impact resistance, stable mechanical performance
Custom cutting service available
Strict quality inspection, 3.1MTC / test certificate can be issued
Large ready stock, fast loading short lead time
Clean surface, easy for welding, bending further fabrication
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Introduction
Hot rolled carbon steel square bar is a kind of non-alloy mild steel with solid square cross-section. It adopts hot rolling forming technology, features stable mechanical performance, excellent weldability and easy machining. It is widely distinguished from hollow square tube (SHS), with higher load-bearing capacity.
We keep abundant stock of multiple grades and sizes. Custom cutting service is offered to cut bars into your required length, saving your secondary processing time and cost. We can provide official 3.1 Mill Test Certificate and SGS inspection report upon request.
Product Parameters
| Item | Specification |
|---|---|
| Product Name | Hot Rolled Carbon Steel Square Bar |
| Material Grade | Q235B, A36, S235JR, SS400, 45# |
| Execution Standard | GB/T702, ASTM A36, EN 10025 |
| Size Range | 10×10mm – 200×200mm, custom sizes acceptable |
| Cross Section | Solid square |
| Manufacturing Process | Hot Rolled |
| Surface Condition | Hot rolled black surface, uncoated |
| Alloy Type | Non-alloy |
| Processing Service | Custom fixed-length cutting |
| Dimension Tolerance | Standard hot rolled tolerance |
| Packaging | Bundled with steel strips, seaworthy export packing |
| Application | Machinery components, support brackets, equipment base, structural frame, construction fabrication |
| MOQ | 1 Ton |
| Supply Capacity | In stock or customized production |
| Loading Port | Qingdao Port / Tianjin Port |
| Certification | 3.1 MTC, SGS available |
Key Features
✅ Non-alloy carbon steel, stable mechanical property
✅ Solid square structure, strong bearing capacity (Not hollow tube)
✅ Good weldability, suitable for bending, drilling and further machining
✅ Various grades & sizes ready in stock for quick delivery
✅ Custom cutting service to meet your drawing requirement
✅ Strict quality inspection, test documents support
✅ Export standard packing to avoid damage during ocean shipment
Application
It is commonly used for machinery spare parts, supporting brackets, equipment bases, steel structural frames, engineering fabrication and other general structural projects.
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