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| Property | Parameter | Description |
|---|---|---|
| Product Name | Hot Rolled Structural Steel Sections | Includes I-beams, H-beams, channels, angles, and T-sections produced by hot rolling process |
| Material Grade | S235JR / S275JR / S355JR / S355J2 (EN); A36 / A572 Gr.50 (ASTM); Q235B / Q345B (GB); SS400 / SM490 (JIS) | International equivalent grades available; S355JR ≈ A572 Gr.50 ≈ Q345B ≈ SM490 |
| Standard Compliance | EN 10025-2, ASTM A36 / A572, GB/T 706, JIS G3192 | Compliant with major international structural steel standards for hot-rolled sections |
| Chemical Composition (C) | ≤ 0.20% (S355JR) / ≤ 0.26% (A36) | Carbon content controlled to ensure weldability and toughness |
| Chemical Composition (Mn) | ≤ 1.60% (S355JR) / ≤ 1.03% (A36) | Manganese enhances strength and hardenability |
| Chemical Composition (P / S) | P ≤ 0.035% / S ≤ 0.035% (EN 10025-2) | Low phosphorus and sulfur content to improve ductility and impact resistance |
| Chemical Composition (Si) | ≤ 0.55% (S355JR) | Silicon acts as deoxidizer and contributes to strength |
| Tensile Strength | 470–630 MPa (S355JR, EN 10025-2) / 400–550 MPa (S235JR) / 400–550 MPa (A36) | Ultimate tensile strength per referenced standard; varies by grade and section thickness |
| Yield Strength | ≥ 355 MPa (S355JR, t ≤ 16mm) / ≥ 235 MPa (S235JR) / ≥ 250 MPa (A36) | Minimum yield strength; decreases with increasing section thickness per standard tables |
| Elongation | ≥ 22% (S235JR) / ≥ 20% (S355JR) / ≥ 20% (A36) | Minimum elongation at fracture (gauge length L0 = 5.65√S0) per EN 10025-2 / ASTM |
| Section Dimensions | Web height: 50–900 mm; Flange width: 50–400 mm; Length: 6–18 m (standard); custom lengths available | Covers IPE, HEA/HEB/HEM (European), W/S shapes (ASTM), H-pile, UB/UC (BS), and equal/unequal angles |
| Thickness Range | Flange thickness: 5–100 mm; Web thickness: 4–60 mm | Dimensional tolerances per EN 10034, ASTM A6, or GB/T 706 |
| Surface Finish | As-rolled (black surface); mill scale present; shot blasting / primer coating available on request | Surface condition per EN 10163; rust grade A–B typical for as-rolled sections |
| Application | Building frames, bridges, industrial structures, crane rails, offshore platforms, heavy machinery bases | Widely used in civil engineering, construction, and infrastructure projects worldwide |
| Certification | CE Marking (EN 10025), Mill Test Certificate (EN 10204 3.1 / 3.2), ISO 9001:2015 | Third-party inspection by SGS, BV, TÜV available; material traceability guaranteed |
| Packaging | Bundle with steel strapping (standard); wooden dunnage for sea freight; bare or wrapped per buyer requirement | Bundle weight typically 2–5 MT; export packing compliant with ISPM 15 for wooden materials |
| MOQ | 25 MT per grade/size (stock items); 50 MT for custom rolling orders | Mixed container orders accepted; lead time 15–30 days for mill orders; ex-stock available for common sizes |
Initial documentation gap caused delay — issue was resolved and quality was fine
Ordered 50 tonnes of UC 203x203x60 columns in S355J0 for a retaining wall support system. On first delivery, the Charpy impact test records in the MTC referenced the wrong sub-grade designation, which our structural engineer flagged during document review. This held up material release for three days. After raising the issue, the supplier obtained a corrected 3.1 certificate from the mill within 24 hours and the material passed our QC inspection without any physical issues — dimensional tolerances to EN 10034 were correct and yield strength at 368 MPa was compliant. The problem was administrative, not a product quality failure, and the resolution was handled efficiently. Would consider ordering again with clearer upfront documentation instructions.
Ordered 50 tonnes of UC 203x203x60 columns in S355J0 for a retaining wall support system. On first delivery, the Charpy impact test records in the MTC referenced the wrong sub-grade designation, which our structural engineer flagged during document review. This held up material release for three days. After raising the issue, the supplier obtained a corrected 3.1 certificate from the mill within 24 hours and the material passed our QC inspection without any physical issues — dimensional tolerances to EN 10034 were correct and yield strength at 368 MPa was compliant. The problem was administrative, not a product quality failure, and the resolution was handled efficiently. Would consider ordering again with clearer upfront documentation instructions.
