Product Details

Rectangular tube


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Product Introduction

Rectangular Tube (Mild Steel)
Mild Steel Rectangular Tube is an un-galvanized hollow steel tube with a rectangular cross-section. It features structural stability, good workability, and affordability, widely used in building structures, machinery equipment, decoration projects, and infrastructure. It is often used in scenarios requiring secondary processing (like galvanizing, painting, or rust-proofing), balancing both strength and flexibility.

➤ Specifications
▪️ Dimensions: 20×10mm ～ 350×150mm (Contact us for more sizes)
▪️ Thickness: 1.0mm ～ 12.0mm
▪️ Cutting Service: Standard 6M, can be cut to required length
💡 Click to view the complete Black Iron Rectangular Tube Specification Table
Specification (mm × mm) Available Thickness (mm)
30×15 1.5
30×20 (Fabricated Tube) 1.8
40×20 1.5, 1.8, 2.0
40×27 (Fabricated Tube) 2.8
50×25 1.5, 1.8, 2.0, 2.3
60×30 1.8, 2.0, 2.3
70×25 (Fabricated Tube) 1.8
70×30 (Fabricated Tube) 1.8
75×25 (Fabricated Tube) 1.8
75×45 (Fabricated Tube) 2.0
80×40 1.8, 2.0, 2.8, 3.0
100×20 (Fabricated Tube) 3.0
100×50 1.8, 2.0
120×40 (Fabricated Tube) 2.0, 3.0
120×60 2.8, 4.5
125×75 4.0
150×75 4.0, 6.0
150×100 4.5, 6.0
200×100 4.5, 6.0
200×150 6.0
250×150 6.0
300×200 6.0, 9.0
➤ Product Features
▪️ High Structural Strength: Suitable for long-term load bearing and structural support
▪️ Excellent Workability: Easy to weld, cut, bend, and surface treat
▪️ Cost-Effective: More competitive pricing compared to galvanized or stainless rectangular tubes
▪️ Flexible for Secondary Processing: Can be galvanized, painted, or undergo other surface protection as needed

➤ Applications
▪️ Building Structures: Frames, partitions, support structures
▪️ Furniture Manufacturing: Table and chair frames, display racks, storage shelves
▪️ Machinery & Equipment: Industrial machine structures, machinery frames
▪️ Infrastructure: Railings, handrails, fences, traffic facilities

📞 Contact Us
If you have any needs for Black Iron Rectangular Tube , feel free to contact Guokai Steel!
📧 Email: sales@guokaisteel.com.tw
📩 Official Line Account: @guokai
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