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Seamless Steel Pipe for Structure - Mill Direct Price
China
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 Seamless Steel Pipe for Structural Construction
| Property | Parameter | Description |
|---|---|---|
| Product Name | Seamless Steel Pipe for Structural Construction | Hot-rolled or cold-drawn seamless carbon steel pipe used in structural and load-bearing applications |
| Material Grade | ASTM A106 Gr.B / A53 Gr.B; EN 10210 S355J2H; GB/T 8162 20# / 45#; JIS G3444 STK400 | International equivalent grades available; grade selection based on structural load and service condition |
| Standard Compliance | ASTM A106 / A53; EN 10210-1; GB/T 8162; JIS G3444 | Complies with major international structural pipe standards for mechanical and dimensional requirements |
| Chemical Composition (C) | ≤ 0.30% (A106 Gr.B); ≤ 0.22% (S355J2H) | Carbon content controlled to ensure weldability and structural integrity |
| Chemical Composition (Mn) | 0.29% – 1.06% (A106 Gr.B); ≤ 1.60% (S355J2H) | Manganese enhances tensile strength and toughness of the pipe |
| Chemical Composition (P / S) | P ≤ 0.035%; S ≤ 0.035% | Low phosphorus and sulfur content minimizes brittleness and improves weld quality |
| Chemical Composition (Si) | ≥ 0.10% (A106 Gr.B); ≤ 0.55% (S355J2H) | Silicon acts as a deoxidizer and contributes to strength |
| Tensile Strength | ≥ 415 MPa (A106 Gr.B); ≥ 470 MPa (S355J2H) | Minimum tensile strength per respective standard; ensures structural load capacity |
| Yield Strength | ≥ 240 MPa (A106 Gr.B); ≥ 355 MPa (S355J2H) | Minimum yield strength ensuring resistance to permanent deformation under structural loads |
| Elongation | ≥ 30% (A106 Gr.B); ≥ 22% (S355J2H) | Minimum elongation in 2-inch gauge length; indicates ductility and energy absorption capacity |
| Outer Diameter (OD) Range | 21.3 mm – 660 mm | Wide OD range to accommodate various structural column, beam, and truss applications |
| Wall Thickness Range | 2.0 mm – 60 mm | Wall thickness selected based on design pressure and structural load requirements |
| Length | Standard: 6 m / 12 m; Custom: up to 18 m | Fixed or random lengths available; custom cutting service offered per project specification |
| Surface Finish | Black varnished, bare, hot-dip galvanized, or epoxy coated | Surface treatment selected based on corrosion protection requirement and service environment |
| Application | Structural columns, trusses, scaffolding, bridges, machinery frames, building foundations | Widely used in civil engineering, industrial construction, and infrastructure projects |
| Certification | ISO 9001; CE Marking (EN 10210); Mill Test Certificate (MTC) per EN 10204 3.1 | Third-party inspection available; full traceability documentation provided with each shipment |
| Packaging | Bundled in hexagonal bundles (1–3 MT per bundle); steel strip strapping; end caps fitted | Seaworthy export packaging available; wooden dunnage and waterproof wrapping upon request |
| MOQ | 5 MT per grade/size | Mixed container orders accepted; spot stock available for standard sizes with short lead time |
Seamless Steel Pipe for Structure - Mill Direct Price
Seamless steel pipe for structural construction stands as one of the most critical load-bearing components in modern civil and industrial engineering. Manufactured through a hot-rolling or cold-drawing process that eliminates longitudinal weld seams, these pipes deliver uniform wall thickness, superior dimensional accuracy, and consistent mechanical integrity across every cross-section. Engineers and procurement specialists worldwide specify seamless structural pipes for applications where weld-line failure is simply not an option — from high-rise building frameworks and bridge pylons to offshore platform jackets and heavy machinery supports. Our mill-direct supply model removes intermediary markups, enabling clients to source certified seamless structural pipe at cost-effective rates without compromising on quality. With production capacities exceeding 120,000 metric tons per year and in-house third-party inspection capabilities, we serve contractors, EPC firms, and steel service centers across North America, Europe, Southeast Asia, and the Middle East with consistent lead times and traceable material documentation.
What Is Seamless Steel Pipe for Structural Construction?
Seamless steel pipe for structural construction is a hollow cylindrical section produced without a welded joint, formed by piercing a solid steel billet and rolling or drawing it to the required dimensions. Governed by standards such as ASTM A500, ASTM A53 Grade B, EN 10210, and GB/T 8162, these pipes provide reliable compressive, tensile, and torsional strength for columns, trusses, piles, and other primary structural members where dimensional precision and mechanical uniformity are paramount.
Seamless Steel Pipe for Structural Construction — Technical Specifications
Our seamless structural steel pipes are produced to meet the most demanding project specifications. Key parameters include an outer diameter (OD) range of 21.3 mm to 914 mm, wall thickness from 2.0 mm to 100 mm, and lengths up to 12,000 mm (custom lengths available). Yield strength reaches a minimum of 250 MPa for Grade A and 315 MPa for Grade B per ASTM A500, while tensile strength meets a minimum of 400 MPa. Material grades include S235, S355, Q345B, ASTM A53B, and API 5L X42–X70 equivalents. Surface treatments such as hot-dip galvanizing, 3PE anti-corrosion coating, and varnish painting are available upon request.
| Parameter | Specification / Range | Standard Reference |
|---|---|---|
| Outer Diameter (OD) | 21.3 mm – 914 mm | ASTM A500 / EN 10210 |
| Wall Thickness | 2.0 mm – 100 mm | GB/T 8162 / ASTM A53 |
| Yield Strength (min.) | 250 MPa (Gr. A) / 315 MPa (Gr. B) | ASTM A500 |
| Tensile Strength (min.) | 400 MPa | ASTM A500 / EN 10210 |
| Elongation (min.) | 21% (Gr. A) / 23% (Gr. B) | ASTM A500 |
| Steel Density | 7.85 g/cm³ at 20°C | — |
| Available Grades | S235, S355, Q345B, A53B, X42–X70 | EN / GB / ASTM / API |
| Length | Up to 12,000 mm (custom available) | Per order requirement |
| Surface Treatment | Bare / Galvanized / 3PE / Varnish | Per project specification |
| Third-Party Inspection | SGS, BV, TÜV, Lloyd's | Available on request |
Get a Competitive Quote for Seamless Steel Pipe for Structural Construction
Ready to source premium-grade seamless steel pipe for structural construction at mill-direct rates? Our technical sales team evaluates your project drawings and load requirements to recommend the most cost-efficient grade and dimension — typically delivering a detailed quotation within 24 hours of inquiry. Whether you need a trial shipment of 5 metric tons or a bulk order exceeding 500 metric tons, we scale to your project timeline.
- 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!
