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- Jinan City, Shandong Province
- scarlett@jyh-steel.com
- +8613153179337. whatapp:+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 TubingGalvanized 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 SectionShanghai 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 TubeShanghai 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 TubeJNXYH Metal is a direct manufacturer and global supplier of high-quality Pre Galvanized Rectangular Tubes.
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Hot Dip Galvanized Rectangular TubeShanghai Xinyiheng Metal manufactures hot dip galvanized rectangular tubes for global distributors, contractors, steel fabricators, and industrial buyers.
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Galvanized Rectangular Hollow SectionGalvanized 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 |

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.
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.





