Black Steel Square Tubes are hollow sections crafted from high-quality carbon steel, primarily grades like Q235, Q345, ASTM A53, EN10219... Their distinct square or rectangular cross-sections, combined with a smooth black surface finish, make them ideal for a wide range of applications across industries. These pipes are manufactured through advanced techniques such as Electric Resistance Welding (ERW) and hot rolling, ensuring exceptional strength, durability, and dimensional accuracy.
Products Description
| Product | Black Steel Square Tube |
| Shape | Rectangular, Square |
| Producing process | ERW (Electrical Resistance Weld) |
| Standard | GB, ASTM A53,ASTM A500, EN 10210 ,EN 10219, JIS G 3466 ,BS 1387 |
| Material grade | Q235, Q345, Gr A, GR B,GR C, S235,S275,S355,STK400,STK500 |
| Size | 10x10 to 600x600 mm |
| Thickness | 0.5~20mm |
| Coating | Bare, Black painting,unti-rust oil, galvanization |
| Applications | Fence, Structure, Furniture, Green house bulding |
Manufacturing Precision
Produced using Electric Resistance Welding (ERW) or cold-drawn techniques, these tubes maintain precise dimensional tolerances (e.g., ±1% or tighter). This precision ensures seamless integration and assembly in complex structures, reducing on-site modifications
Features
Precision Engineering: Manufactured with tight tolerances to ensure uniformity and reliability in every dimension.
Durability & Strength: Built to withstand extreme loads and environmental conditions, offering long-lasting performance even in the harshest settings.
Versatile Applications: Perfect for structural frameworks, mechanical components, automotive parts, and more, adapting effortlessly to your project's unique requirements.
Surface Finish: Available in a variety of finishes, including galvanized, unti-rust oil, and painted, to enhance corrosion resistance and aesthetic appeal.
Custom Fabrications: Easily welded, bolted, or machined for bespoke projects.
Customization and Quality Assurance
We understand that every project has unique requirements, which is why we offer comprehensive customization services.
Our team can tailor the size, thickness, length, and surface treatment of the pipes to meet your specific needs.
Additionally, all our products undergo rigorous quality testing to ensure they meet international standards and exceed your expectations.
We hold certifications such as ISO, BV, and API, demonstrating our commitment to quality and customer satisfaction
Tensile Test Chemical Analysis Dimension checking Thickness Checking
Competitive Price, Flexible MOQ
We strive to provide cost-effective solutions without compromising on quality.
Our pricing is competitive, with discounts available for bulk orders.
The minimum order quantity (MOQ) starts from 10 tons, but we can accommodate smaller orders for special projects.
We also hold a large inventory to meet urgent need
inventory
Our warehouses always keep 2000 tons inventory with various meterial grades and sizes to meet fast delivery demand
contact
Kevin (Sales Manager)
Tianjin shenzhoutong steel pipe co.,ltd
kevin@tjshenzhoutong.com
Mob/whatsapp/wechat +86 15267768016
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