High-Quality 500mm x 500mm Black Square Tube - China Suppliers & Factory with 3A Credit Rating
Precision-Engineered Black Square Tube for Demanding Applications
This 500mm x 500mm black square tube is a structural profile characterized by its large, equal-sided square cross-section. The black finish, often achieved through painting or a protective coating, provides enhanced corrosion resistance and a clean, uniform aesthetic. Due to its substantial dimensions, this tube is engineered for heavy-duty applications where significant load-bearing capacity and structural rigidity are paramount. Common uses include the construction of large frameworks, industrial support structures, heavy machinery bases, and architectural elements in bridges or large buildings.
Engineered for Performance & Compliance
We understand that global projects require global standards. Our black square tube is produced to comply with the most recognized international specifications, ensuring acceptance and safety worldwide.
- Global Standard Adherence: Manufactured to ASTM, EN, JIS, GB, and CSA standards.
- Third-Party Certified: Supported by CE Marking (EU), BV, JIS, and other renowned certification bodies.
- Full Traceability: Each batch can be linked to its original mill material, providing complete transparency.
- Test Reports Available: Complete documentation package including MTC, chemical analysis, and mechanical test reports upon request.
Detailed Product Specifications
To facilitate your specification process, here is a detailed overview of our core product offering.
| Feature | Description & Benefit |
|---|---|
| Material | Low carbon, high-strength steel. Optimal balance of formability, weldability, and strength. |
| Corrosion Resistance (Base Product) | Black, mill scale surface. Provides temporary protection during storage/transit. Requires protective coating (paint, galvanizing) for long-term outdoor exposure. |
| Weldability | Excellent. Clean, square edges facilitate strong, high-penetration welds using all common methods (MIG, TIG, Stick). |
| Straightness | High-degree of straightness maintained through controlled cooling and straightening processes. |
| Weight Calculation | Predictable and consistent, allowing for accurate logistical and structural planning. |
Tailored Solutions for Complex Projects
Your project is unique. Our flexibility ensures our black square tube fits your precise needs, not the other way around.
- Special Steel Grades: Need improved weather resistance (e.g., A588), enhanced yield strength, or specific chemical composition? We can source and process accordingly.
- Tight-Tolerance Manufacturing: For precision fabrications and machinery, we can hold exceptionally tight tolerances on cross-section and wall thickness.
- Pre-Production Samples: Validate critical dimensions, weldability, and finish with pre-production samples before full-order manufacturing.
Processing
Sustainable Manufacturing & Assurance
As an industry leader, Yuantai Derun is committed to responsible production. Our integrated manufacturing cluster optimizes energy use and reduces waste. Our multi-stage quality assurance protocol is your guarantee:
- Incoming Material Audit — Every batch verified at source before entering production.
- Real-Time Process Control — Continuous monitoring throughout manufacturing.
- Final Dimensional & Visual Inspection — Strict checks before shipment approval.
- Optional Destructive & NDT Testing — Available on request for critical applications.