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| Property | Parameter | Description |
|---|---|---|
| Product Name | Heavy Duty Steel Pipes for Construction | Structural and load-bearing steel pipes designed for heavy construction applications |
| Material Grade | ASTM A53 Gr.B / A106 Gr.B / EN 10210 S355J2H / GB/T 8162 Q355B | High-strength carbon and low-alloy steel grades; international equivalents: S355 (EN), Q355 (GB) |
| Standard Compliance | ASTM A53 / ASTM A106 / EN 10210 / EN 10219 / JIS G3444 / GB/T 8162 | Compliant with major international structural and pressure pipe standards |
| Chemical Composition – C | ≤ 0.30% (max) | Carbon content controlled to ensure weldability and toughness |
| Chemical Composition – Mn | 0.29% – 1.06% | Manganese enhances tensile strength and hardenability |
| Chemical Composition – P / S | P ≤ 0.035% / S ≤ 0.035% | Low phosphorus and sulfur for improved ductility and impact resistance |
| Chemical Composition – Si | ≤ 0.35% | Silicon as deoxidizer; improves strength and corrosion resistance |
| Tensile Strength | 415 – 655 MPa (ASTM A53 Gr.B) | Minimum tensile strength per ASTM A53/A106; EN S355: ≥ 470 MPa |
| Yield Strength | ≥ 240 MPa (ASTM A53 Gr.B) / ≥ 355 MPa (S355J2H) | Minimum yield strength ensuring structural integrity under heavy loads |
| Elongation | ≥ 22% (longitudinal, per ASTM A53) | Adequate ductility for construction forming and welding operations |
| Outer Diameter (OD) | 21.3 mm – 914.4 mm (DN15 – DN900) | Wide OD range covering light structural to heavy-duty pile and column applications |
| Wall Thickness | 2.0 mm – 50.0 mm | Heavy wall options available for high-pressure and structural load requirements |
| Length | 6 m / 12 m (standard); custom lengths available | Random or fixed lengths per project specification; max 18 m for special orders |
| Surface Finish | Black varnished / Hot-dip galvanized / 3PE coated / Bare | Anti-corrosion coatings available; galvanized per ASTM A123 or EN ISO 1461 |
| Application | Structural columns, piling, scaffolding, bridge construction, underground conduits | Suitable for civil engineering, high-rise buildings, infrastructure, and industrial frameworks |
| Certification | ISO 9001:2015 / CE Marking / API 5L / Mill Test Certificate (EN 10204 3.1) | Full material traceability with third-party inspection available (SGS, BV, TÜV) |
| Packaging | Bundled in steel straps (1–3 MT per bundle); end caps fitted; waterproof wrapping optional | Export-standard packaging; wooden dunnage for container and bulk vessel loading |
| MOQ | 25 MT per size/grade | Mixed container orders accepted; spot stock available for standard sizes |
Initial delivery had a labeling mismatch — resolved promptly, quality was fine
We ordered API 5L X60 SSAW pipes, 610 mm OD, 14 mm wall, 60 tons for a pressurized water transmission line. On arrival, heat number markings on roughly 8% of the pipes did not match the packing list, creating a traceability concern for our site QC team. We flagged this immediately. The supplier responded within 24 hours, provided corrected documentation with mill records cross-referenced, and a technical representative joined a call to walk through the verification. The pipes themselves passed all mechanical and dimensional checks. Issue resolved, and we are proceeding with a second order on that basis.
We ordered API 5L X60 SSAW pipes, 610 mm OD, 14 mm wall, 60 tons for a pressurized water transmission line. On arrival, heat number markings on roughly 8% of the pipes did not match the packing list, creating a traceability concern for our site QC team. We flagged this immediately. The supplier responded within 24 hours, provided corrected documentation with mill records cross-referenced, and a technical representative joined a call to walk through the verification. The pipes themselves passed all mechanical and dimensional checks. Issue resolved, and we are proceeding with a second order on that basis.
