Steel Pipe for Building Structural Support | Mill Direct
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of Steel Pipe for Building Structural Support
| Property | Parameter | Description |
|---|---|---|
| Product Name | Steel Pipe for Building Structural Support | Hollow structural steel pipe used in columns, frames, trusses, and load-bearing systems |
| Material Grade | ASTM A500 Gr.B/C; EN 10210 S355J2H; GB/T 6728 Q355B; JIS G3466 STKR490 | High-strength low-alloy structural steel grades with international equivalents |
| Standard Compliance | ASTM A500 / A53; EN 10210 / EN 10219; GB/T 6728 / GB/T 8162; JIS G3466 | Covers hot-formed and cold-formed hollow structural sections for construction |
| Chemical Composition | C ≤ 0.23%, Mn ≤ 1.60%, P ≤ 0.035%, S ≤ 0.035%, Si ≤ 0.40%, Cu ≤ 0.35% | Composition per ASTM A500 Gr.B; ensures weldability and structural integrity |
| Tensile Strength | ≥ 483 MPa (70,000 psi) — ASTM A500 Gr.B; ≥ 470 MPa — EN S355J2H | Minimum ultimate tensile strength ensuring load-bearing capacity under structural loads |
| Yield Strength | ≥ 317 MPa (46,000 psi) — ASTM A500 Gr.B; ≥ 355 MPa — EN S355J2H | Minimum yield point for structural design calculations per respective standards |
| Elongation | ≥ 23% (in 2 in / 50 mm gauge length) | Ensures adequate ductility for seismic and dynamic structural applications |
| Pipe Type | Round, Square, Rectangular HSS (Hollow Structural Section) | Available in CHS, SHS, and RHS profiles to suit various structural configurations |
| Dimensional Range | OD: 21.3–914 mm; Wall Thickness: 1.6–50 mm; Length: 6 m / 12 m or custom | Wide size range covering light framing to heavy structural columns and beams |
| Manufacturing Process | ERW (Electric Resistance Welded), SAW (Submerged Arc Welded), Seamless | Seamless preferred for high-stress columns; ERW suitable for general structural use |
| Surface Finish | Black (mill finish), Hot-Dip Galvanized (≥ 85 μm), Epoxy Coated, Primer Painted | Galvanized finish per ASTM A123 for corrosion protection in exposed structures |
| Heat Treatment | Normalized or As-Rolled; stress-relieved available on request | Normalizing improves toughness and uniformity for critical structural members |
| Application | Building columns, space frames, trusses, scaffolding, curtain wall supports, bridges | Widely used in commercial, industrial, and residential structural steel construction |
| Certification | ISO 9001:2015, CE Marking (EN 1090), Mill Test Certificate (EN 10204 3.1/3.2) | Third-party inspection available; MTR traceable to heat and lot number |
| Packaging | Bundled in hexagonal or square bundles; steel-strapped; end caps fitted | Bundle weight typically 2–5 MT; custom packaging for container or bulk shipment |
| MOQ | 25 MT per size/grade (mixed sizes negotiable for full container loads) | Trial orders accepted; FOB, CFR, CIF terms available; lead time 15–30 days |
Steel Pipe for Building Structural Support | Mill Direct
Steel pipe for building structural support stands as one of the most critical load-bearing components in modern construction, delivering the strength, dimensional consistency, and long-term durability that architects and structural engineers demand. Whether applied in high-rise frameworks, industrial warehouses, bridge columns, or residential foundations, structural steel pipe provides an unmatched combination of axial compressive strength and torsional rigidity. Manufactured to international standards including ASTM A53, ASTM A500, EN 10210, and GB/T 8162, these pipes undergo rigorous mill testing to verify wall thickness uniformity, yield strength, and weld integrity before shipment. With tensile strength values typically ranging from 330 MPa to 620 MPa depending on grade, and yield strengths starting at 250 MPa for Grade B carbon steel, structural steel pipe reliably transfers vertical and lateral loads across complex building systems. Our mill-direct supply chain eliminates intermediary markups, giving contractors and developers access to certified product at cost-effective rates with full traceability documentation.

What is Steel Pipe for Building Structural Support?
Steel pipe for building structural support refers to hollow tubular steel sections — available in circular, square, and rectangular profiles — engineered specifically to carry compressive, tensile, and bending loads within a building's primary and secondary structural framework. Produced via seamless or electric resistance welded (ERW) processes, these pipes conform to strict dimensional tolerances (outer diameter tolerance ±1%) and minimum wall thickness requirements, ensuring predictable structural performance across all load scenarios throughout a building's service life.

Steel Pipe for Building Structural Support Technical Specifications
Our structural steel pipes are supplied across a broad specification range to match diverse engineering requirements:
- Standards: ASTM A53 Grade B, ASTM A500 Grade C, EN 10210-1, GB/T 8162
- Outer Diameter: 21.3 mm – 914 mm (seamless); up to 2,000 mm (welded)
- Wall Thickness: 2.0 mm – 100 mm
- Yield Strength: 250 MPa – 500 MPa (grade dependent)
- Tensile Strength: 330 MPa – 620 MPa minimum per applicable standard
- Elongation: ≥ 22% (ASTM A500 Grade C)
- Surface Treatment: Black, hot-dip galvanized (≥ 85 μm zinc coating), epoxy-coated, or primer-painted
- Length: Standard 6 m / 12 m, or custom cut-to-length
- Chemical Composition: Carbon ≤ 0.26%, Manganese ≤ 1.35%, Phosphorus ≤ 0.035%, Sulfur ≤ 0.035%
- NDT Testing: Hydrostatic, ultrasonic, eddy current available upon request
All products ship with Mill Test Certificates (MTC) compliant with EN 10204 3.1, providing full chemical and mechanical traceability for project documentation and inspection requirements.
Get a Competitive Quote for Steel Pipe for Building Structural Support
Ready to source premium-grade steel pipe for building structural support at mill-direct rates? Our technical sales team responds to all inquiries within 24 hours, offering tailored solutions for single-project procurement and long-term bulk supply contracts alike. Share your project specifications — diameter, wall thickness, grade, quantity, and delivery destination — and we will prepare a detailed, obligation-free quotation with certified material documentation included.
- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!
