China Supply Q235 Q345 Hollow Galvanized Square Steel Pipe Cheap Price
Galvanized square tubes are hollow structural steel profiles with square hollow cross-sections. There are two mainstream production methods. Manufacturers can cold bend hot or cold rolled galvanized steel strips and coils, then complete high-frequency welding to shape the finished tubes. Alternatively, they first cold-form blank hollow square pipes, and later carry out hot-dip galvanizing for anti-corrosion treatment.
Excellent anti-corrosion performance
Hot-dip galvanization stands out as a cost-efficient anti-rust solution widely adopted across industries, consuming nearly half of global zinc production. Zinc creates a compact shielding film covering steel surfaces while offering sacrificial cathodic protection. Even if the galvanized layer gets scratched, the zinc material will still shield the steel substrate from rust via cathodic protection.
Outstanding cold bending & weldability
The product adopts low-carbon steel as the primary raw material. The base material boasts reliable cold bending and welding capabilities, alongside decent stamping workability to meet diverse processing demands.
High light & heat reflectivity
Its surface delivers strong reflectivity, which works as an effective thermal barrier to block heat transfer.
Tough, durable coating
The galvanized layer generates a unique metallurgical bonding structure. This sturdy structure can resist mechanical scratches and impacts occurring during transportation and on-site application.
Standard square tubes only have limited applicable scenarios, while galvanized square tubes gain far wider application thanks to their outer galvanized coating. They are widely applied in numerous fields including building curtain walls, civil construction, machinery fabrication, steel structure works, shipbuilding, solar mounting brackets, electric power projects, power stations, agricultural and chemical equipment, glass curtain walls, automobile underframes, airports and more.
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Product Name
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Galvanized Square Steel Pipe
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Zinc Coating
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35μm-200μm
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Wall Thickness
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1-5MM
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Surface
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Pre-galvanized, Hot dipped galvanized, Electro galvanized, Black, Painted, Threaded, Engraved, Socket.
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Grade
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Q235, Q345, S235JR, S275JR, STK400, STK500, S355JR, GR.B-D
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Tolerance
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±1%
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Oiled or Non-Oiled
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Non-Oiled
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Delivery Time
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3-15 days (according to the actual tonnage) | |||
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Usage
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Civil engineering, architecture, steel towers, shipyard, scaffoldings, struts, piles for suppression of landslide and other
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Package
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In bundles with steel strip or in loose, non-woven fabrics packings or as per customers' request
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MOQ
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1 ton
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Payment Term
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T/T
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Trade Term
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FOB,CFR,CIF ,DDP,EXW
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Details
1. What materials do you use for galvanized square steel pipes?
We primarily provide galvanized square pipes made of Q235 and Q345 carbon steel grades. These materials feature solid structural strength, great durability and superior weldability, perfectly fitting diverse construction and engineering scenarios.
2. Where are hollow galvanized square pipes commonly applied?
These hollow square pipes have extensive application scope, covering steel structure engineering, building frames, warehouse construction, protective fencing, solar support systems and various industrial engineering projects.
3. What size and thickness options are available?
We support a full range of standard specifications for pipe sizes, wall thicknesses and lengths. Meanwhile, customized sizes can be tailored strictly according to customers’ actual demands.
4. What core benefits do galvanized square steel pipes have?
The professional zinc coating endows the pipes with outstanding anti-corrosion and anti-rust performance. It effectively extends the service life of the products and reduces daily maintenance costs, enabling stable use in both indoor and outdoor environments.
5. How do you guarantee product quality?
We implement rigorous full-process quality inspections for all products. Mill Test Certificates (MTC) are provided for each batch of goods, with complete dimensional testing. Third-party authoritative inspections by SGS and BV are also acceptable.
6. What packaging and shipping solutions can you provide?
All products are firmly bundled with steel belts and equipped with waterproof packaging to avoid damage during transportation. Our packaging is applicable for container loading and bulk shipment, supporting stable export delivery to global markets.
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