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Steel H Beam & H Beam，Q235B、Q355B、Q420B、Q550DNegotiableMOQ: 5 Metric Tons -
Steel H Beam & H Beam，Q235B、Q355B、Q420B、Q550DNegotiableMOQ: 5 Metric Tons
-
Steel H Beam & H Beam，Q235B、Q355B、Q420B、Q550DNegotiableMOQ: 5 Metric Tons
-
Steel H Beam & H Beam，Q235B、Q355B、Q420B、Q550DNegotiableMOQ: 5 Metric Tons
-
Steel H Beam & H Beam，Q235B、Q355B、Q420B、Q550DNegotiableMOQ: 5 Metric Tons
Detailed Description of H-beam
H-beam is an economical and efficient section steel with H-shaped cross section, composed of parallel flanges and vertical web. It features optimized material distribution and reasonable strength-to-weight ratio, widely applied in steel structure beams, columns, bridges and equipment supports.
1. Basic Definition & Standards
Definition: H-shaped cross section with parallel upper and lower flanges and vertical connecting web. Classified into hot-rolled type and welded type.
Executive Standards
Hot-rolled: GB/T 11263-2017
Welded: YB 3301-2005
Material Grade: Common grades Q235B, Q355B; high-strength grades Q420B, Q550D for heavy-duty usage
2. Classification & Specification Marking
2.1 Category by Flange Width
HW Wide Flange: Height close to flange width, applied as axial compression and frame columns
HM Medium Flange: General-purpose for beams and columns
HN Narrow Flange: Mainly used as bearing beams
HT Thin-walled: Light weight for light steel structures
2.2 Specification Expression
Format: Height×Flange Width×Web Thickness×Flange Thickness (mm)Example: HW200×200×8×12
2.3 Common Specifications
| Model | Dimension(mm) | Theoretical Weight(kg/m) |
|---|---|---|
| HW100×100 | 100×100×6×8 | 24.2 |
| HW200×200 | 200×200×8×12 | 50.5 |
| HM300×200 | 298×199×8×12 | 56.1 |
| HN400×200 | 400×200×8×13 | 65.4 |
3. Structural Features & Mechanical Advantages
3.1 Structure Composition
Flange: Bears bending moment, enhances lateral stability
Web: Resists shear force, reduces overall weight
3.2 Advantages over I-beam
Superior sectional performance, high bending and torsion resistance
Higher bearing capacity with identical weight, material saving
Convenient welding and bolt connection, easy construction
Light self-weight, lowers foundation construction cost, suitable for large-span projects
4. Production Process
Hot-rolled H-beam: Billet heating → Rough rolling → Finish rolling → Cooling → Straightening → Cutting → Inspection, stable dimension and mechanical property
Welded H-beam: Steel plate cutting → Assembly welding → Straightening → Non-destructive testing, customizable oversized sizes
5. Application Scope
Building steel structure: Factory buildings, office buildings, residential frame beams and columns
Industrial field: Equipment and pipeline supports, furnace frames, mine support
Municipal transportation: Long-span bridges, guardrails, offshore platforms
Underground engineering: Steel piles, foundation pit support, tunnel bracing
6. Quality Inspection & Packaging
6.1 Inspection Items
Dimensional tolerance, tensile and yield strength, elongation, impact toughness, surface defect check, ultrasonic and magnetic particle testing for welded products
6.2 Delivery & Packaging
Bound in bundles of 1-5 tons. Mark model, size, material and batch number on each end.Delivery condition: Hot rolled or normalized, anti-rust paint available on surface
7. Difference between H-beam and I-beam
Section: H-beam with parallel flanges; I-beam with tapered inner flange surface
Performance: H-beam owns better torsion and bending resistance
Application: H-beam for large-span beams and columns; I-beam for small supports and beams
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