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  • 50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube
  • 50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube
  • 50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube
  • 50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube
  • 50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube
  • 50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube
50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube

50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube

  • 5 - 24 Tons
    $670
  • >= 25 Tons
    $650

Customization:

Customized packaging（Min.Order: 1000 pieces）
View product details

50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Structural Support & Industrial Piping: Designed for heavy-duty applications such as construction frameworks, hydraulic systems, gas/oil transportation, and drilling equipment. The square/rectangular cross-section ensures robust load-bearing capacity and precise fitting.
  • Versatile Material Handling: Suitable for fluid management (boiler pipes, chemical fertilizer pipes) and dynamic environments requiring corrosion resistance and durability.

Key features

  • 1. Material Technology

    • With galvanized steel and Q235/Q345 grades (complying with DIN standards), you can achieve high strength and corrosion resistance, ensuring durability in harsh environments.

  • 2. Interactive Design

    • With customizable processing services (cutting, bending, welding), you can easily adapt the tubes to specific project requirements, reducing on-site adjustments.

  • 3. Performance Parameters

    • With lengths up to 12m and compatibility with diverse applications (structure, hydraulic, gas/oil), you can optimize material efficiency and reduce joints by up to 50% compared to standard 6m pipes.

  • 4. Scenario Solutions

    • Designed for structural support in construction and industrial projects, you can ensure stability in heavy-load environments while also addressing fluid transportation needs, offering broader adaptability than single-use pipes.

  • 5. Certification Standards

    • With RoHS certification, you can ensure environmental compliance and safety in manufacturing, meeting EU standards unlike many non-certified alternatives.

Product details

50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube

The 50X50 HSS Mild Rectangular Hollow Section Square Steel Pipe Tube is a versatile structural solution designed for industrial and construction applications. Crafted from non-alloy steel (Q235/Q345 grades), these tubes comply with DIN standards and offer robust performance in structural, hydraulic, and fluid systems. Available in 6m/12m lengths and finished with galvanized, hot-rolled, or oiled surfaces, they ensure durability across harsh environments.

Technical specifications

FeatureSpecificationBenefit
MaterialQ235/Q345 non-alloy steelHigh strength-to-weight ratio for load-bearing applications
FinishGalvanized, hot-rolled, or oiledEnhanced corrosion resistance and surface protection
CertificationRoHS-compliantMeets global environmental and safety standards
Section ShapeSquare/rectangular hollow cross-sectionOptimized for structural stability and design flexibility
Length Options6m or 12mAdaptable to project-specific requirements
Processing ServicesCutting, bending, weldingEnables customized fabrication for complex assemblies

Customization guide

Adjustable parameters include:

  • Material Grade: Choose Q235 for standard applications or Q345 for high-strength requirements.
  • Surface Treatment: Opt for galvanized coatings for corrosive environments or hot-rolled finishes for cost-effective solutions.
  • Dimensions: Customize lengths and cross-sectional thickness to meet project specifications.

Scenario Solution:
"Medium-thickness Q235 tubes with galvanized finishes are ideal for outdoor structural frameworks, ensuring long-term durability in marine or industrial settings. For heavy machinery components, the Q345 grade provides superior tensile strength, reducing deformation risks under load."

Get inspired

Maximize efficiency in construction, automotive, or energy projects with these tubes. Their square cross-section allows seamless integration into modular designs, while DIN compliance ensures compatibility with global standards.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material GradeQ235Q345Q345 (premium alloy)
FinishHot-rolledGalvanizedGalvanized + epoxy coating
CertificationRoHSRoHS + ISO 3834RoHS + ISO 3834 + API
Load Capacity200 MPa250 MPa (+25%)300 MPa (+50%)*
Corrosion Resistance480 hours CDT600 hours CDT (+25%)800 hours CDT (+67%)

Supplier's note

  1. Technical Breakthroughs:

    • Galvanized Finish: Offers 60% longer lifespan in corrosive environments compared to uncoated steel.
    • Q345 Grade: 20% stronger than Q235, ideal for heavy-duty applications like offshore platforms.
    • API Compliance: Enables use in oil/gas pipelines, meeting extreme pressure and temperature demands.

  2. Version Selection Guide:

    • Base Model: Best for standard construction frameworks (e.g., scaffolding) where cost efficiency is prioritized.
    • Advanced Model: Suitable for automotive or HVAC systems requiring corrosion resistance and moderate load capacity.
    • Pro Model: Recommended for oil/gas drilling or chemical plants, where extreme durability and compliance with API standards are critical.

"With the Pro Model’s 300 MPa load capacity, you can safely construct high-pressure fluid systems. Pair its galvanized + epoxy coating with Q345 steel to achieve unmatched longevity in offshore environments."

Frequently asked questions

  • Which HSS Mild Rectangular Steel Pipe is best for heavy-duty structural applications?

  • How do I maintain galvanized square steel tubes during storage?

  • Why choose non-alloy steel for gas/oil pipelines over alloy alternatives?

  • Can these square steel tubes be customized for unique project requirements?

  • Are these steel pipes RoHS-certified for industrial use?

  • What makes Q235 steel suitable for boiler pipe systems?

  • Can I order 6m or 12m lengths pre-cut to fit drilling equipment frames?

  • How does the square cross-section improve structural integrity compared to round pipes?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Structural SupportBuildings, Bridges, Industrial Frames▲ Q345 Steel (345 MPa yield strength) vs Base (Q235: 235 MPa)
Galvanized coating (85 µm per ISO 1461)		▲ 34% stronger than Base for heavy loads; corrosion resistanceHigher cost than Q235; requires专业安装 (Professional installation required)
Hydraulic SystemsIndustrial Machinery, Hydraulic LinesSmooth inner surface (Ra ≤ 10 µm)
Pressure rating: 210 bar (DIN 2391)		Minimizes fluid friction; reliable under high pressureSensitive to manufacturing tolerances; costly for precision machining
Gas/Oil TransportationPipelines, RefineriesCorrosion-resistant (Q235 + hot-dip galvanizing)
Seamless construction (EN 10217)		Withstands harsh environments; no seam leakage riskHeavy weight; may require additional insulation for extreme temperatures
Drilling ComponentsOil/Gas Drilling Equipment▲ Q345 Steel (8mm thick walls) vs Base (6mm)
Abrasion-resistant (ISO 1514)		▲ 33% thicker walls for extreme abrasion; high tensile strengthBulky design; limited flexibility for complex drilling paths
Chemical ProcessingChemical Plants, ReactorsNon-reactive (Q235 non-alloy)
Chemical resistance (ASTM A530)
Thick walls (10mm)		Safe for corrosive chemicals; minimizes permeation riskLimited shape customization; heavier than alternatives
Boiler SystemsPower Plants, Heating SystemsHeat-resistant (Q235 + heat treatment)
Seamless (EN 10216)
Pressure rating: 250°C/16 bar		Maintains integrity at high temps/pressures; no seam failure riskRequires frequent thermal inspections; higher maintenance costs

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