+8613153179337
JNXYH Galvanized Rectangular Tube Manufacturer & Supplier

 

JNXYH manufactures and supplies high-quality galvanized rectangular tubes (RHS) for construction companies, steel fabricators, distributors, machinery manufacturers, and engineering contractors worldwide.
Our rectangular hollow sections combine carbon steel strength with advanced hot-dip galvanizing to deliver structural accuracy and corrosion protection for indoor and outdoor applications. We support strict international standards (ASTM, EN, JIS, GB/T), ISO 9001 and CE quality systems, customized dimensions, OEM requirements, and bulk export orders.

 
  • Galvanized Rectangular Tubing
    Galvanized Rectangular Tubing

    Galvanized Rectangular Tubing (RHS) is a structural steel tube with a protective zinc coating. It serves as a barrier against environmental corrosion, making it ideal for outdoor and industrial

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  • Galvanized Rectangular Steel Hollow Section
    Galvanized Rectangular Steel Hollow Section

    Shanghai Xinyiheng Metal manufactures and supplies high-quality Galvanized Rectangular Steel Hollow Sections (RHS) for global steel distributors, contractors, fabricators, and industrial

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  • Galvanized Structural Rectangular Tube
    Galvanized Structural Rectangular Tube

    Shanghai Xinyiheng Metal manufactures and supplies Hot-Dip Galvanized Structural Rectangular Tubes to global distributors, steel fabricators, and contractors.

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  • Pre Galvanized Rectangular Tube
    Pre Galvanized Rectangular Tube

    JNXYH Metal is a direct manufacturer and global supplier of high-quality Pre Galvanized Rectangular Tubes.

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  • Hot Dip Galvanized Rectangular Tube
    Hot Dip Galvanized Rectangular Tube

    Shanghai Xinyiheng Metal manufactures hot dip galvanized rectangular tubes for global distributors, contractors, steel fabricators, and industrial buyers.

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  • Galvanized Rectangular Hollow Section
    Galvanized Rectangular Hollow Section

    Galvanized Rectangular Hollow Section (RHS) is a premium structural steel tube engineered for high load-bearing performance and superior corrosion resistance.

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JNXYH Product Advantages

Superior Load-Bearing Performance

Engineered for high bending strength and exceptional torsional rigidity, ensuring stable structural frames under heavy loads.

Long-Lasting Corrosion Resistance

Advanced hot-dip and pre-galvanized treatments form a tight metallurgical zinc shield to prevent rust in humid or outdoor environments.

High Dimensional Precision

Manufactured using high-frequency ERW welding and precise roll-forming equipment to guarantee tight wall-thickness tolerances and straightness.

Fabrication Friendly

Excellent weldability and uniform material properties allow for seamless cutting, drilling, and on-site assembly.

 

Technical Specifications & Material Grades

 

Technical Specifications 

Parameter

Specification Range

Product Name

Galvanized Rectangular Tube

Section Type

Rectangular Hollow Section (RHS)

Material

Premium Carbon Steel

Manufacturing Process

ERW Welded / Hot-Formed / Cold-Formed

Surface Treatment

Hot-Dip Galvanized / Pre-Galvanized

Width Range

20 mm - 500 mm

Height Range

10 mm - 600 mm

Wall Thickness

0.8 mm - 20 mm

Standard Length

6m / 12m (Custom lengths available)

Quality Systems

ISO 9001, CE Certified

 

Standard & Material Matrix

 

Standard

Common Grades

Typical Yield Strength

Primary Application

ASTM A500

Grade A / B / C

≥ 315 MPa (Gr. B)

General structural applications

EN10219

S235JR / S275JR / S355JR

≥ 235 - 355 MPa

Construction structures

EN10210

S355J2H

≥ 355 MPa

Heavy-duty structural applications

JIS G3466

STKR400 / STKR490

Standard dependent

Commercial & industrial frameworks

GB/T 6728

Q235 / Q355

≥ 235 - 355 MPa

Industrial and engineering structures

 

Galvanized Rectangular Tubing

 

Manufacturing & Quality Control

Production Workflow
Raw Material Inspection: Verification of steel coil chemical composition and mechanical properties.
Tube Forming: Precision roll-forming into rectangular profiles.
ERW Welding: High-frequency electric resistance welding for uniform structural joints.
Galvanizing Treatment: Precision application of zinc coatings.
Final Quality Screening: Comprehensive batch checks prior to packaging.


Testing & Documentation
Mechanical Testing: Tensile strength, yield strength, and elongation tests.
Dimensional Checks: Laser verification of width, height, wall thickness, length, and straightness.
Surface Inspection: Coating thickness meter testing and defect screening.
Available Documents: Mill Test Certificate (MTC) per EN10204 3.1, plus third-party inspection reports (SGS, BV, TUV).

 

Applications & Custom Services

Application Sectors

Construction: Steel buildings, structural frames, roof structures, support systems.
Infrastructure: Fencing, highway guardrails, handrails, architectural canopies.
Industrial: Heavy machine frames, conveyor supports, flooring platforms.
Agriculture: Farm buildings, livestock structures, greenhouse frames.

 

Custom Manufacturing (OEM / ODM)

We accommodate non-standard project requirements through:

  • Customized dimensions and wall thicknesses
  • Precision cut-to-length services
  • Hole punching, slotting, and CNC machining
  • Tailored zinc coating weights for aggressive environments
 

Packaging, Logistics & Export

Standard Packaging: Bundled with high-strength steel straps, moisture-resistant wrapping, and clear identification labels.
Shipping Support: Full container loads (FCL) and bulk vessel transport coordination.
Trade Terms: FOB, CFR, CIF, DDP.

 

 

FAQ

 

Q: What standards do your tubes comply with?

A: We supply tubes strictly according to ASTM A500, EN10219, EN10210, JIS G3466, and GB/T 6728 standards.

Q: What quality certifications do you hold?

A: Our operations are certified under ISO 9001 and CE standards, and shipments include EN10204 3.1 Mill Test Certificates.

Q: What zinc coating thickness is available?

A: We provide pre-galvanized options (40-80 g/m²) and hot-dip galvanized options (200-600 g/m²) based on project specifications.

Q: Can you handle custom sizes and fabrication?

A: Yes. We support custom sizing, special wall thicknesses, cutting, and hole punching according to engineering drawings.

We're well-known as one of the leading galvanized rectangular tube manufacturers and suppliers in China. Please rest assured to buy high quality galvanized rectangular tube for sale here from our factory. For price consultation, contact us.

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