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| Property | Parameter | Description |
|---|---|---|
| Product Name | I Beam (I-Shaped Steel Beam) | Hot rolled structural I beam with tapered flanges for construction and engineering applications |
| Material Grade | Q235B / Q345B / SS400 / A36 / S235JR / S355JR | Equivalent grades: ASTM A36, EN S235JR, JIS SS400, GB Q235B |
| Standard Compliance | GB/T 706, ASTM A6/A36, EN 10034, JIS G3192 | Manufactured in accordance with international structural steel standards |
| Carbon Content (C) | ≤ 0.20% | Typical value for Q235B/A36 grade; ensures good weldability |
| Manganese Content (Mn) | 0.30% - 1.60% | Varies by grade; enhances strength and hardness |
| Silicon Content (Si) | ≤ 0.55% | Acts as deoxidizer during steelmaking process |
| Phosphorus (P) / Sulfur (S) | P ≤ 0.045% / S ≤ 0.045% | Controlled to ensure toughness and reduce brittleness |
| Tensile Strength | 370 - 530 MPa | Q235B: 370-500 MPa; Q345B: 470-630 MPa per GB/T 700 & GB/T 1591 |
| Yield Strength | 235 - 345 MPa | Q235B: ≥ 235 MPa; Q345B: ≥ 345 MPa; A36: ≥ 250 MPa |
| Elongation | ≥ 20% | Measured on standard gauge length per respective material standards |
| Size Range (Height) | 100 mm - 630 mm | Common sizes: I10, I12, I14, I16, I18, I20, I22, I25, I28, I32, I36, I40, I45, I56, I63 |
| Flange Width | 68 mm - 176 mm | Tapered flange design; width increases proportionally with beam height |
| Web Thickness | 4.5 mm - 17.0 mm | Varies by section size; designed for optimal shear resistance |
| Length | 6 m - 12 m | Standard lengths; custom cutting available upon request |
| Surface Finish | Black / Hot-rolled / Painted / Galvanized | Anti-rust oil coating or primer painting available for corrosion protection |
| Application | Building structures, bridges, platforms, machinery frames, industrial plants | Widely used in construction, infrastructure, and general structural engineering |
| Certification | ISO 9001, SGS, BV, CE, Mill Test Certificate (EN 10204 3.1) | Third-party inspection and testing reports provided upon request |
| Packaging | Bundled with steel strips, waterproof paper or woven cloth wrapped | Seaworthy packaging suitable for container or bulk vessel shipment |
| MOQ | 25 Metric Tons | Smaller quantities negotiable; mixed sizes accepted per order |
Initial Shipping Delay Resolved Professionally
Ordered 150 tons of ASTM A36 I beams in 200mm and 350mm depths for a multi-storey residential framework in Pune. The steel quality was fine — yield strength confirmed at 260 MPa, surface finish was clean black. However, the first shipment was delayed by 11 days due to port congestion issues. Their logistics team communicated proactively and arranged partial air-freight documentation to keep our customs process on track. Second batch arrived on schedule. The problem was handled well, so I'd order again with a slightly longer buffer on timelines.
Ordered 150 tons of ASTM A36 I beams in 200mm and 350mm depths for a multi-storey residential framework in Pune. The steel quality was fine — yield strength confirmed at 260 MPa, surface finish was clean black. However, the first shipment was delayed by 11 days due to port congestion issues. Their logistics team communicated proactively and arranged partial air-freight documentation to keep our customs process on track. Second batch arrived on schedule. The problem was handled well, so I'd order again with a slightly longer buffer on timelines.
