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Large Diameter Heavy Wall Rectangular Steel Tube for Structural Applications

Large diameter heavy wall rectangular steel tubes designed for high-load structural applications, offering excellent bending resistance, torsional strength, dimensional stability and fabrication flexibility. Available in multiple steel grades, sizes, wall thicknesses and surface finishes to meet demanding engineering requirements.

    Product Introduction

    Large Diameter Heavy Wall Rectangular Steel Tube
    Fuyuansheng large diameter heavy wall rectangular steel tubes are designed for structural projects that require high load-bearing capacity, dimensional stability and reliable performance under demanding conditions.

    Manufactured using controlled forming and welding processes, the rectangular hollow section provides a closed structural profile with good resistance to compression, bending and torsional forces. Compared with conventional open steel profiles, its enclosed cross-section can provide efficient structural performance while maintaining relatively simple fabrication and connection.

    The tubes are available in a wide range of steel grades, dimensions, wall thicknesses, lengths and surface treatments. Custom specifications can also be produced according to project drawings, structural requirements and applicable international standards.

    This makes the rectangular steel tube suitable for large-span buildings, bridges, industrial structures, transportation infrastructure, cranes and heavy machinery.

    Rectangular steel tubes for industrial building structures

    Product Specifications

    Parameter

    Specification

    Product Name

    Large Diameter Heavy Wall Rectangular Steel Tube

    Product Type

    Rectangular Hollow Section (RHS) / Hollow Structural Section (HSS)

    Cross Section

    Rectangular

    Manufacturing Process

    Hot Formed / Cold Formed / Welded

    Size Range

    19×19mm - 500×500mm (Customized Available)

    Wall Thickness

    1.2-16mm

    Length

    6m / 12m / 18m/ 24m Customized Length

    Steel Grade

    Q235B, Q355B, S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H, S355NH, S355NLH, ASTM A500 Grade B/C, etc

    Standard

    ASTM A500, EN10210, EN10219, JIS G3466, GB/T 6728

    Surface Treatment

    Black Painting, Shot Blasting, Epoxy Coating, Galvanizing

    Welding Type

    High Frequency Welding / Submerged Arc Welding

    End Type

    Plain End, Beveled End, Customized

    Inspection

    Chemical Analysis, Tensile Test, Dimension Inspection, UT Testing

    Application

    Heavy Steel Structures, Bridges, Industrial Buildings

    Why Choose Large Diameter Heavy Wall Rectangular Steel Tube?

    Designed for demanding structural applications
    Heavy wall rectangular steel tubes are particularly suitable when a project requires higher structural strength and stability than standard light-wall hollow sections.

    Stable dimensional performance
    Controlled manufacturing and inspection processes help maintain consistent dimensions and geometry, supporting accurate fabrication and assembly.

    Suitable for large-scale structures
    The combination of large cross-sectional dimensions and increased wall thickness makes these tubes suitable for heavy-duty structural frameworks and infrastructure.

    Multiple surface treatment options
    Black painting, shot blasting, epoxy coating and galvanizing can be selected according to environmental exposure and project requirements.

    International standards available
    Products can be manufactured according to standards including ASTM A500, EN 10210, EN 10219, JIS G3466 and GB/T 6728, depending on the required specification.

    Heavy wall rectangular steel tube cross section
    Heavy wall rectangular steel tubes for bridge construction

    Advantage

    Large diameter heavy wall rectangular steel tubes are widely used in large-span buildings, industrial facilities, bridges, infrastructure projects, equipment frames, cranes and other heavy-duty structural applications, where high strength, dimensional stability and reliable load-bearing performance are required.

    Manufacturing Process

    Raw Material → Cutting → Forming → Welding → Sizing → Weld Inspection → Straightening → Surface Treatment → Dimensional Inspection → Mechanical Testing → Final Inspection → Packing

    Rectangular steel tube manufacturing process in production line
    Large rectangular steel tubes for building structures

    Quality Inspection

    Each batch can be inspected according to the applicable product standard and project requirements, including:

    ● Chemical composition analysis

    ● Tensile and mechanical property testing

    ● Dimensional inspection

    ● Wall thickness inspection

    ● Weld quality inspection

    ● Ultrasonic testing (UT)

    ● Surface inspection

    FAQs

    • What is a large diameter rectangular steel tube?

    • What is the difference between RHS and rectangular steel tube?

    • What steel grades are available?

    • Can the dimensions be customized?

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