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Help CenterSteel H Beam & Thickened H Beam，Q235B（GB/T 700）、Q355B/C/D（GB/T 1591）
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H-Beam Product Detailed Description
1. General Overview
H-beam is a high-efficiency economic structural steel with an H-shaped cross-section, composed of parallel upper and lower flanges and a vertical web. Compared with ordinary I-beam, it features optimized cross-section distribution, reasonable strength-to-weight ratio, high bending resistance, light self-weight, steel saving and convenient construction. It is widely used in steel structure buildings, bridges, equipment supports and other engineering fields.
2. Executive Standards
National Standard: GB/T 11263-2017 (Hot-rolled H-beam and split T-beam)
Common Material Standards: Q235B (GB/T 700), Q355B/C/D (GB/T 1591)
Dimensional Deviation: Compliant with GB/T 714-2015
3. Classification & Specifications
3.1 Classification by Flange Width
Wide Flange H-Beam (HW): Flange width is close to section height, with balanced stress bearing. Mainly used for load-bearing columns, structural steel columns and frame columns.
Medium Flange H-Beam (HM): Suitable for frame columns, dynamic load beams and equipment platforms.
Narrow Flange H-Beam (HN): Excellent bending resistance, widely applied in structural beams, purlins and wall supports.
Pile H-Beam (HP): With thickened flange and web, specially designed for steel piles, foundation support and underground engineering.
3.2 Classification by Production Process
Hot-rolled H-Beam: Formed by high-temperature rolling, with stable quality, accurate dimension and standard specifications.
Welded H-Beam: Custom welded by flange plate and web plate, available for super-large cross-section customization to meet special heavy-load requirements.
3.3 Model Naming Rule
H / HW / HM / HN / HP + Height × Flange Width × Web Thickness × Flange Thickness
3.4 Common Specifications & Theoretical Weight
| Model | Size (H×B×t1×t2, mm) | Theoretical Weight (kg/m) |
|---|---|---|
| HW100×100 | 100×100×6×8 | 17.2 |
| HW200×200 | 200×200×8×12 | 64.4 |
| HN200×100 | 200×100×5.5×8 | 21.7 |
| HN300×150 | 300×150×6.5×9 | 37.3 |
| HM300×200 | 300×200×8×12 | 57.3 |
4. Material & Mechanical Properties
4.1 Common Materials
Q235B: Mild carbon steel, for general buildings and light-load structures.
Q355B/C/D: High-strength low-alloy steel, for industrial plants, bridges and heavy-duty projects.
Special Grade: Weathering steel, high-strength steel for harsh working conditions.
4.2 Main Mechanical Properties
Yield Strength: Q235B ≥ 235MPa; Q355B ≥ 355MPa
Tensile Strength: 375-630MPa
Elongation: ≥ 22%
Impact Toughness: Meet normal temperature low-temperature impact requirements
5. Product Advantages
Reasonable sectional structure, outstanding torsion resistance and seismic performance.
Light weight, effectively reducing foundation engineering cost and overall project investment.
Simple connection, easy processing, cutting and welding, high construction efficiency.
High material utilization rate, energy-saving and recyclable, in line with green building standards.
6. Application Scope
Civil building frames, industrial factory columns and beams, bridge engineering, foundation pit support, petrochemical equipment platforms, municipal engineering and various mechanical equipment supports.
7. Surface Treatment & Packaging
Surface Treatment: Hot rolled original surface, rust removal, anti-rust paint coating, hot-dip galvanizing.
Packaging: Bundled in tons, marked with model, material and heat number; covered with tarpaulin for sea and land transportation to prevent moisture and corrosion.
8. Delivery Cycle
The delivery cycle of conventional specifications is 5-7 days. Custom welded H-beam can be produced on demand with flexible delivery time.
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