Steel H Beam & H Beam Steel Profile, Q235B, Q355B
H-Beam Product Description
H-Beam is an economic and efficient profile with optimized section area distribution and reasonable strength-to-weight ratio, named for its H-shaped section. It features strong bending resistance, stable structure, convenient construction and steel saving, widely used in industrial workshops, high-rise buildings, bridges, steel structures, supports, machinery manufacturing and other engineering fields.
1. Model, Specification and Dimension
Common H-beams are classified by flange width. Unit: mm
Wide Flange H-Beam (HW)Typical models:
HW100×100, HW125×125, HW150×150
HW200×200, HW250×250, HW300×300
HW350×350, HW400×400
Medium Flange H-Beam (HM)Typical models:
HM150×100, HM194×150, HM244×175
HM294×200, HM340×250, HM390×300
Narrow Flange H-Beam (HN)Typical models:
HN100×50, HN125×60, HN150×75
HN175×90, HN200×100, HN250×125
HN300×150, HN350×175, HN400×200
General dimension range:
Height h: 100–900 mm
Flange width b: 50–400 mm
Web thickness t₁: 4.5–20 mm
Flange thickness t₂: 6.0–30 mm
Non-standard sizes can be customized according to customer requirements.
2. Executive Standard & Material
Executive Standard: GB/T 11263
Common Grades: Q235B, Q355B(Also available: Q355C, Q355D and other low-alloy high-strength steel grades)
3. Chemical Composition (by melting analysis, %)
| Grade | C | Si | Mn | P ≤ | S ≤ |
|---|---|---|---|---|---|
| Q235B | ≤0.17 | ≤0.35 | ≤1.40 | 0.035 | 0.035 |
| Q355B | ≤0.24 | ≤0.55 | ≤1.60 | 0.035 | 0.035 |
Notes:
Chemical composition complies with Chinese National Standard. Original Material Test Certificate (MTC) is available.
European and American standard grades with corresponding compositions can be supplied for export.
4. Product Features & Performance
Large section modulus, excellent bending, compression and torsion resistance. Saves more steel than conventional I-beams under the same load.
Uniform material structure, good plasticity and toughness, excellent seismic performance, suitable for dynamic loads and important load-bearing structures.
Good weldability, cuttability and drillability, enabling fast on-site installation and shortened construction period.
Smooth surface, free of cracks, scars, folds, inclusions and other defects. Anti-rust and painting treatment is available.
Delivery condition: hot rolled. Cut to length and packaged as required, suitable for domestic projects and foreign trade export.
5. Application Fields
Building steel structures: workshops, high-rise residences, office buildings, stadiums
Infrastructure: bridges, columns, beams, towers, supports
Machinery industry: equipment bases, frames, heavy supporting structures
Warehousing & logistics: steel shelves, platforms, three-dimensional warehouses
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