Steel H Beam & Hot Rolled H Beam,HW100×100、HW200×200、HW250×250
1. Product Definition
H-beam is an economical and high-efficiency profile with an H-shaped cross-section, composed of parallel upper and lower flanges and a vertical web. It is also known as wide-flange I-beam and parallel flange I-beam. With optimized cross-section structure, materials are concentrated on key stress-bearing positions, featuring a reasonable strength-to-weight ratio. Its bending and torsion resistance performance is far superior to ordinary I-beams, making it the core profile of modern steel structure engineering.
2. Executive Standards
Hot rolled H-beam: GB/T 11263-2017 (China Standard)
Welded H-beam: GB/T 33814-2017 (China Standard)
International Reference: EN 10034 (European Standard), ASTM A992 (American Standard), JIS G 3192 (Japanese Standard)
3. Classification & Specifications
3.1 Classification by Flange Width (National Standard)
Wide Flange H-beam (HW): Flange width is close to section height (B/H≈1), widely used for steel columns and frame columns with excellent compression and bidirectional bending resistance. Example: HW100×100, HW200×200, HW250×250 (250×250×9×14mm, 72.4kg/m)
Medium Flange H-beam (HM): Flange width is slightly less than section height (B/H≈0.5~0.8), applied to heavy-duty supports and beam-column structures. Example: HM150×100, HM300×200, HM488×300
Narrow Flange H-beam (HN): Narrow flange (B/H≈0.3~0.5), the most commonly used type for floor beams, trusses and wall supports. Example: HN200×100, HN400×200, HN600×300
Pile H-beam (HP): Thick flange and high rigidity, mainly used for steel piles and foundation supporting structures.
3.2 Model Representation
Expressed as: Height H × Width B × Web Thickness t₁ × Flange Thickness t₂Example: HN400×200×8×13 (Height 400mm, Width 200mm, Web Thickness 8mm, Flange Thickness 13mm)
3.3 Main Specifications (Partial)
Model |
H(mm) |
B(mm) |
t₁(mm) |
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 |
31.9 |
HN250×125 |
250 |
125 |
6 |
9 |
29.7 |
HM300×200 |
300 |
200 |
8 |
12 |
57.3 |
4. Material & Mechanical Properties
4.1 Main Grades
Q235B: Ordinary carbon steel, yield strength ≥235MPa, high cost performance, widely used in civil buildings and small & medium factory buildings.
Q355B: Low alloy high strength steel, yield strength ≥355MPa, applied to heavy-load and large-span structures such as factory buildings and bridges.
Other export grades: SS400, SM490
4.2 Core Mechanical Performance
Yield Strength: ≥235MPa (Q235B), ≥355MPa (Q355B)
Tensile Strength: 370-500MPa (Q235B), 470-630MPa (Q355B)
Elongation: ≥26% (Q235B), ≥21% (Q355B)
5. Production Process
Hot Rolled H-beam: Integrally formed by heating steel billet and rolling through multiple rollers, with standard size, stable performance and smooth surface, suitable for mass production and widely selected.
Welded H-beam: Assembled by web and flange plates through submerged arc welding. Custom oversized/special specifications (such as extra-thick flange, non-standard height) are available to meet the needs of special heavy-load and large-span projects.
6. Product Features
Excellent mechanical performance: Flanges bear bending moment, web bears shear force, with large section moment of inertia. The bending strength is 5%-10% higher than that of ordinary I-beams of the same weight, and it has good torsion resistance and lateral stability.
Light self-weight and material saving: 30%-50% lighter than concrete structure, small foundation load, reducing transportation and hoisting costs, and saving 15%-20% of steel.
Efficient construction: Standardized components, connected by bolts/welding, dry construction, fast speed, low noise, environmental protection, and the construction period is shortened by more than 30%.
High space utilization: Small section height, less space occupied by beams and columns, and the usable area of buildings is increased by 5%-8%.
Seismic and durable: Steel structure has good ductility, strong seismic performance, corrosion resistance (can be galvanized/anti-corrosion painted), and service life of more than 50 years.
7. Application Fields
Industrial Buildings: Factory beams and columns, crane beams, equipment supports, blast furnace frames, mine supports.
Civil Buildings: Steel columns, frame beams of high-rise/super high-rise buildings, residential steel structures.
Infrastructure: Large-span bridges, cross-sea platforms, municipal pipe galleries, steel pile supports.
Others: Petrochemical/power equipment supports, steel structures of large venues (airports, gymnasiums).
8. Dimensional Tolerance (GB/T 11263-2017)
Section Height (H): ±3.0mm
Flange Width (B): ±2.0mm
Web Thickness (t₁): ±0.5~±1.0mm
Flange Thickness (t₂): ±0.8~±1.5mm
Bending Degree: ≤0.15% × Length
9. Packaging & Delivery
Packaging: Bundled (2-5 tons per bundle), with labels at the ends indicating specification, material, batch number and manufacturer; the surface can be painted with anti-rust paint or galvanized.
Delivery: Shipped within 5-7 working days, supporting shipment from Tianjin Port, Liaocheng and other locations, adapting to road transportation, railway transportation and sea transportation.
10. Purchasing Points
Verify the model specification (H×B×t₁×t₂), material (Q235B/Q355B) and executive standard.
Check the surface quality: no cracks, scars, folds or rust, and the dimensional tolerance meets the standard.
Request quality certificates: material list, mechanical performance report, factory certificate of conformity.
Select the type according to the purpose: HW for load-bearing columns, HN for ordinary beams, HM for heavy-duty supports, and HP for steel piles.
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