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Help CenterSteel H Beam & H Beam In Stock，Q235B、Q355B、 Q235C/D、Q355C/D/E 、Q460
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Steel H Beam & H Beam In Stock，Q235B、Q355B、 Q235C/D、Q355C/D/E 、Q460NegotiableMOQ: 5 Metric Tons -
Steel H Beam & H Beam In Stock，Q235B、Q355B、 Q235C/D、Q355C/D/E 、Q460NegotiableMOQ: 5 Metric Tons
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Steel H Beam & H Beam In Stock，Q235B、Q355B、 Q235C/D、Q355C/D/E 、Q460NegotiableMOQ: 5 Metric Tons
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Steel H Beam & H Beam In Stock，Q235B、Q355B、 Q235C/D、Q355C/D/E 、Q460NegotiableMOQ: 5 Metric Tons
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Steel H Beam & H Beam In Stock，Q235B、Q355B、 Q235C/D、Q355C/D/E 、Q460NegotiableMOQ: 5 Metric Tons
H Steel Product Detailed Description
1. Basic Definition & Structural Characteristics
H Steel (H-beam) is an economical high-efficiency section steel with an H-shaped cross-section. With optimized section distribution and reasonable strength-to-weight ratio, it is widely used in steel structure buildings and heavy engineering, also known as wide-flange I-beam.
Definition: It has an H-shaped cross-section, composed of web (middle vertical part, resists shear force) and flange (upper and lower horizontal parts, resists bending moment). The inner and outer sides of the flange are parallel with right-angle ends, featuring far better mechanical properties than ordinary I-beams of the same weight.
Structural Features: Thin web and wide flange; high section modulus and moment of inertia; excellent bending resistance, torsion resistance and overall stability with good lateral stiffness and low risk of instability.
2. Product Classification (Standard: GB/T 11263-2017)
2.1 Classified by Flange Width (Main Hot-Rolled Type)
HW (Wide Flange H Steel): Height ≈ Width, nearly square section; high weak-axis stiffness and compression stability, mainly used for axially compressed columns and heavy frame columns (e.g., HW100×100).
HM (Medium Flange H Steel): Height/Width ratio 1.33~1.75, rectangular section; balanced performance of strong and weak axis with both bending and compression resistance, applied to frame columns and equipment platform beams (e.g., HM300×200).
HN (Narrow Flange H Steel): Height/Width ratio ≥2, slender section; outstanding strong-axis moment of inertia and bending resistance, suitable for bending beams and light-duty frames (e.g., HN400×200).
HT (Thin-walled H Steel): Thin web and flange, lightweight design; used for light workshops, supports and non-load-bearing components.
2.2 Classified by Production Process
Hot-rolled H Steel: Integrally formed by heating and rolling steel billets; uniform performance, high precision and no welding defects, the first choice for conventional heavy-duty structures such as workshop columns and floor beams.
Welded H Steel: Assembled by submerged arc welding after steel plate cutting; customizable super-large and special sections, applied to long-span bridges, super high-rise columns and special load-bearing components.
3. Main Material Grade & Chemical Composition
3.1 Common Material Grades (National Standard)
Q235B: Ordinary carbon steel, yield strength ≥235MPa; widely used in civil buildings and medium & small workshops with high cost performance.
Q355B (Original Q345B): Low alloy steel, yield strength ≥355MPa; ideal for heavy-load, long-span and super high-rise projects such as bridges and core columns, saving steel consumption with smaller section size.
High-grade Grades: Q420, Q460 high-strength steel, used for large-span stadiums, sea-crossing bridges and other super large projects.
3.2 Typical Chemical Composition (%)
| Material Grade | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| Q235B | ≤0.20 | ≤0.35 | 0.37~0.65 | ≤0.045 | ≤0.050 |
| Q355B | ≤0.20 | ≤0.55 | 1.00~1.60 | ≤0.035 | ≤0.035 |
4. Specification & Main Parameters
Marking Standard: Height × Width × Web Thickness × Flange Thickness (Unit: mm)
4.1 Common Hot-Rolled Specifications (Theoretical Weight Reference)
HW100×100: 100×100×6×8, 16.9kg/m
HM300×200: 298×199×8×12, 56.1kg/m
HN400×200: 400×200×8×13, 65.4kg/m
HN600×200: 600×200×10×14, 97.2kg/m
4.2 Parameter Explanation
H (Height): Total height of web
B (Flange Width): Horizontal width of flange
t1 (Web Thickness): Thickness of vertical plate
t2 (Flange Thickness): Thickness of horizontal plate
Theoretical Weight: Weight per meter (kg/m), for engineering quantity calculation
5. Core Advantages
Excellent Mechanical Performance: Superior bending and torsion resistance with good stability; reduces self-weight by 30%~50% under the same load and lowers foundation cost.
Efficient Construction: Dry construction with low noise; connectable by welding or high-strength bolts, installation efficiency increased by over 50%; hot-rolled products free of welding flaw detection.
Economical & Eco-friendly: High strength-to-weight ratio saves steel materials; large span design reduces occupied area and increases usable floor area by 5%~8%.
Flexible Design: Complete specifications available, adaptable to stress scenarios of beams, columns and supports.
6. Application Scope
Steel Structure Construction: Load-bearing columns of high-rise buildings, main frame beams and columns of industrial workshops, long-span exhibition centers and stadiums.
Industrial Engineering: Furnace frame, industrial floor beams, pipeline/equipment supports, mine supporting structures.
Transportation & Marine Engineering: Long-span steel bridges, offshore platforms, port machinery main beams, crane track beams.
Underground Engineering: Steel piles, foundation pit supporting structures, utility tunnel supports.
7. Surface Treatment & Deep Processing
Surface Treatment: Rust removal (sand blasting / shot blasting), anti-corrosion coating (rust-proof paint, zinc-rich epoxy paint, fireproof coating), hot-dip galvanizing for high anti-corrosion occasions.
Processing Service: Custom cutting, welding, bending, drilling and beveling processing to meet on-site installation requirements.
8. Executive Standard & Delivery
Executive Standard: Hot-rolled: GB/T 11263-2017; Welded: YB/T 5004-2012
Delivery Cycle: Conventional specifications: 5-7 working days; customized specifications: 7-15 working days
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