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Help CenterSteel H Beam,S235JR, S275JR, S355JR, S355NL
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H-Beam Product Detailed Description
1. Product Overview
H-beam, also named H-section steel, is a kind of economical and efficient structural section steel with an H-shaped cross-section, formed by hot rolling or welding process. It features a reasonable cross-section distribution, parallel inner and outer flanges, and superior mechanical properties, making it a core material in modern steel structure engineering. Compared with traditional I-beam, it has higher bending resistance, stronger load-bearing capacity and better construction convenience.
2. Product Classification & Model Codes
2.1 Hot-Rolled H-Beam (Mainstream Product)
• HW Wide-Flange H-Beam: Wide flange, equal height and flange width, suitable for heavy structural columns and load-bearing foundations.
• HM Medium-Flange H-Beam: Moderate flange width, widely used in general steel frame beams and columns.
• HN Narrow-Flange H-Beam: Narrow flange, high section height, ideal for structural beams and mechanical supports.
• HP Thin-Walled H-Beam / Pile H-Beam: Special for engineering pile foundations and light steel structures.
2.2 Welded H-Beam
Custom-processed by welding steel plates, with flexible specifications, suitable for non-standard structural components.
2.3 International Standard Series
European Standard: HEA, HEB, HEM, IPE; American Standard: W-series, HP-series; Japanese Standard: JIS G3192 series
3. Specification Expression
Standard specification format: Height (H) × Flange Width (B) × Web Thickness (t1) × Flange Thickness (t2)
Example: H350×350×12×19, H400×300×10×16
4. Raw Material & Executive Standards
4.1 Material Grades
• Chinese Standard: Q235B, Q355B (Q345B), Q235A, Q355D, Q420B
• European Standard: S235JR, S275JR, S355JR, S355NL
• American Standard: A36, A572 Gr.50, A992
• Japanese Standard: SS400, SM490A, SM490B
4.2 Executive Standards
• Chinese Standard: GB/T 11263
• European Standard: EN 10034
• American Standard: ASTM A6, ASTM A36, ASTM A572
• Japanese Standard: JIS G3192
5. Surface Treatment Options
• Hot-rolled Black Surface: Original rolling state, no additional treatment, cost-effective
• Hot-dip Galvanized: Strong corrosion resistance, suitable for outdoor and humid environments
• Primer Painting/Topcoat Painting: Customized anti-corrosion coating, adjustable paint type
• Shot Blasting: Surface derusting, improves coating adhesion (SA2.5 grade available)
6. Product Advantages
1. High Structural Strength: Excellent bending, compression and shear resistance, stable mechanical properties.
2. Light Weight & Material Saving: Reduces steel consumption by 15%-20% under the same load, lowers engineering cost.
3. Easy Processing & Installation: Parallel flanges facilitate cutting, welding and bolt connection, shorten construction period.
4. Wide Applicability: Good seismic performance, durable and low maintenance cost.
5. Environmental Friendly: Recyclable and reusable, in line with green building requirements.
7. Main Application Fields
• Building Construction: Industrial workshops, high-rise buildings, steel structure residences, shopping malls
• Infrastructure: Bridges, highways, railways, airports, stadiums
• Industrial Equipment: Heavy machinery bases, equipment supports, transmission towers
• Transportation & Marine Engineering: Container frames, ship structures, offshore platforms
• Other Fields: Wind power towers, vehicle frames, warehouse shelves
8. Packaging & Transportation
• Packaging: Bundled packaging with steel strips, each bundle attached with product labels marking specification, material, batch number and standard.
• Transportation: Suitable for bulk cargo or container transportation, adaptable to sea, land and rail transportation modes.
9. Export Related Information
• HS Code: 72163300 (H-beam with section height over 200mm)
• Customization Service: Customized cutting, welding, drilling and surface treatment according to customer drawings
• Delivery Time: Stable supply for standard specifications, customized products with negotiable delivery cycle
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