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I beam
I beam

I beam

I Beam steel, named for its characteristic "I" cross-section, is one of the most widely used structural steel profiles in construction and engineering. Comprising a vertical web and tapered flanges (top and bottom), this classic design efficiently distributes load and resists bending forces. While similar in appearance to H-beam, the I-beam typically features a narrower flange and tapered profile, making it particularly effective for applications requiring high strength in a single direction. It is an essential component in building frameworks, bridges, and general structural applications.

Material Grades:
Standard Structural: ASTM A36, SS400, S235JR, S275JR, Q235B.
High Strength: ASTM A572 GR50/GR60, S355JR/J2, Q355B.
Weathering Steel: ASTM A588 (Cor-Ten equivalent).


    Product Overview

    The Steel I Beam, also known as a double T-beam or RSJ (Rolled Steel Joist), is one of the most fundamental and reliable profiles in structural engineering . Characterized by its distinctive "I" cross-section with tapered inner flange surfaces, our hot-rolled I-beams are engineered to deliver optimal performance in applications requiring superior resistance to bending and shear forces . Manufactured from high-quality carbon steel, these beams provide exceptional strength and durability, making them the preferred choice for a wide range of industrial, commercial, and infrastructure projects .


    Key Features

    • Superior Load-Bearing Capacity: I-shaped cross-section ensures uniform force distribution, strong bending and shear resistance, ideal for large-span, heavy-load structures.

    • Good Rigidity & Stability: Scientific structural design, not easy to deform, ensuring long-term stability of buildings and equipment.

    • Excellent Weldability: Easy to weld, cut and assemble, reducing on-site construction time and labor costs.

    • Cost-Effective: High strength-to-weight ratio, reducing material consumption and overall project costs for bulk orders.

    • Durable & Versatile: Stable performance, wear-resistant, suitable for harsh industrial and outdoor construction scenarios.




    Main Types & Details

    Grades

    Q235, Q355, A36, S235JR, S355JR, ASTM A992 (custom grades available for specific projects).

    Types

    Hot-Rolled I Beam, Welded I Beam; Light-duty, Medium-duty, Heavy-duty (for different load requirements)

    Standards

    ASTM A36, ASTM A992, EN 10025, GB/T 706


    Theoretical Weight Table

    H Beam Size   

    (mm)

    Theoretical Weight

     (kg/m)

    100x68x1.5

    11.261

    120x74x5.0

    13.987

    140*80*5.5

    16.89

    160*88*6.0

    20.513

    180*94*6.5

    24.143

    200*100*7.0

    27.929

    200*102*9.0

    31.069

    220*110*7.5

    33.07

    220*112*9.5

    36.542

    250*116*8.0

    38.105

    250*118*10.0

    42.03

    280*122*8.5

    43.492

    280*124*10.5

    47.888

    300*126*9.0

    48.084

    300*128*11.0

    52.794

    320*130*9.5

    52.717

    320*132*11.5

    57.741

    360*136*10.0

    60.037

    360*138*12.0

    65.689

    400*142*10.5

    67.589

    400*144*12.5

    73.878

    450*150*11.5

    80.42

    150*152*13.5

    87.845

    560*166*12.5

    106.316

    560*168*14.5

    115.108

    630*176*13

    121.407

    630*178*15

    131.298


    Widely Used Application Scenarios

    • Building Construction: High-rise buildings, large-span workshops, warehouses, shopping malls (main beams, secondary beams and columns).

    • Infrastructure Engineering: Bridges, viaducts, railway stations, airports, overpasses and municipal engineering load-bearing structures.

    • Industrial Facilities: Factory workshops, steel structure plants, power stations, heavy industry equipment platforms and crane beams.

    • Logistics & Warehousing: Logistics centers, warehouse shelves, container yards and loading platforms (load-bearing frames).

    • Public Buildings: Stadiums, exhibition halls, theaters, cultural centers and convention centers (large-span roof and floor structures).

    • Marine & Port: Port terminals, offshore platform supports, shipyards and marine engineering structural components.


    FAQ

    Q: What is the main difference between an I-beam and an H-beam?

    A: The primary difference lies in the flange design. I-beams have tapered inner flange surfaces, while H-beams have parallel flanges. This gives I-beams specific advantages for applications like crane rails, while H-beams generally offer superior load-bearing capacity for columns and heavy structures.

    Q: What is the most common material grade for I-beams?

    A: The most common grades are mild structural steels like ASTM A36, EN 10025 S235JR, and GB Q235B for general construction. For higher strength requirements, we also offer ASTM A992, S355JR, and Q355B grades.


    Q: Can you provide I-beams in non-standard lengths?

    A: Yes, we offer customized lengths upon request. Please contact our sales team with your specific requirements, and we will advise on feasibility and lead time.


    Q: Do you offer surface treatment like galvanizing or painting?

    A: Absolutely. We provide various surface treatment options including hot-dip galvanizing for superior corrosion protection, as well as blasting and priming according to your project specifications.

     

     

     

    Contact us for a free quote and sample to start win-win cooperation!

    WhatsApp/Phone: +86 173 2728 8611

    Email: sales01@huafulai-js.com




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