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Hot Dipped Galvanized Welded Square and Rectangular Steel Tube, Welded Square Rectangular Steel Tube | Hot‑Dipped Galvanized Type, Compliant with GB/T 6725 Standard
Product Introduction
Our square and rectangular welded steel tubes include hot‑dipped galvanized type, ordinary welded type and galvanized steel strip type, strictly produced in accordance with GB/T 6725 and GB/T 6728 national standards.
We provide complete size specifications, from small‑size light‑duty pipes to large‑size heavy‑duty pipes, to meet diverse industrial and construction needs.
These steel pipes feature stable structure, strong corrosion resistance and long service life, ideal for outdoor and heavy‑load engineering projects.
Product Advantages
Strict Standard Compliance
All products are manufactured under GB/T 6725 and GB/T 6728 standards, with stable mechanical performance and reliable quality.
Excellent Anti‑corrosion Performance
Hot‑dipped galvanized surface forms a dense protective layer, effectively resisting rust and oxidation in humid and outdoor environments.
Complete Size Range
We offer 3 series: hot‑dipped galvanized square and rectangular tube, welded steel tube, galvanized steel strip square and rectangular tube, covering multiple size ranges.
Wide Application & High Durability
Suitable for heavy‑duty construction and light‑duty decoration scenarios, with strong bearing capacity and long‑term service life.
Hot‑dipped Galvanized Square and Rectangular Tube
It is widely used in curtain wall, building construction, machinery manufacturing, shipbuilding, solar photovoltaic brackets, steel structure engineering, automobile chassis and other industries.
Ordinary Welded Square and Rectangular Steel Tube
It is suitable for steel structure construction, machinery manufacturing, architectural engineering, automobile manufacturing, shipbuilding, electric power and other industries.
Galvanized Steel Strip Square and Rectangular Tube
It is applied to agricultural facilities, greenhouses, storage shelves, decoration, power communication wiring, machinery equipment manufacturing and other industries.
FAQs
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Q1: What standards do your square and rectangular steel tubes comply with?
A1: Our hot‑dipped galvanized and ordinary welded steel tubes follow GB/T 6725 and GB/T 6728 standards; galvanized steel strip tubes support customized standards.
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Q2: Can you provide customized sizes for square and rectangular steel tubes?
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Q3: What is the difference between hot‑dipped galvanized tube and galvanized steel strip tube?
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Q4: What is your minimum order quantity?
Factory Tour
Product Specifications
| Product Type | Size Range | Executive Standard |
| Hot‑dipped Galvanized Square and Rectangular Tube | Square tube: F20~F400Square pipe:F20~F400Rectangular tube: J40×20~J500×300 | GB/T 6725, GB/T 6728 |
| Ordinary Welded Square and Rectangular Steel Tube | Square tube: F20~F400Square pipe:F20~F400Rectangular tube: J40×20~J500×300 | GB/T 6725, GB/T 6728 |
| Galvanized Steel Strip Square and Rectangular Tube | Square tube: F15~F100Square pipe:F15~F100Rectangular tube: J20×30~J50×100 | Customizable |