Black Surface Treatment Square Steel Tube 10*10 to 400*400 Size Range Factory Direct Supply

Price Negotiable
Price: US $654-988 / Ton
MOQ: 10 Tons per size
Delivery Time: Negotiable
Product Description
Iron Furniture Square Hollow Steel Metal Tube/Pipe Profiles
Factory direct supply of high-quality square hollow steel tubes ranging from 10×10mm to 400×400mm dimensions, available in various materials and surface treatments for diverse industrial applications.
Product Specifications
Product Type Size Range Thickness Length
Square Pipe 10mm×10mm - 1000mm×1000mm 1.2mm - 30.0mm Customizable
Rectangle Pipe 20mm×40mm - 400mm×700mm 1.2mm - 30.0mm Customizable
Round Pipe OD10mm - 1000mm 4mm - 30mm Any length
L/T/Z Window Section 28mm/38mm 0.5mm - 1.5mm Customizable
Technical Details
  • Materials: A106B, SS400, S235JR, S275JR, S355JR, 1020, 1045, 4140, etc.
  • Surface Treatment: Black, galvanized, or painted finishes
  • Packing: Export standard packaging (bundles, seaworthy packages, container shipping)
  • Delivery Port: Shanghai, China
  • Lead Time: Within 30 days after receiving original L/C or deposit
  • Minimum Order Quantity: 10 Tons per size
  • Production Capacity: 10,000MT per month
Applications
Widely used in structural applications, motorbike and automobile manufacturing, ornamental work, medical equipment, sports equipment, and home furniture.
Standard Size Specifications
Size (Outer Dimension) Wall Thickness Length
20×20 / 25×25 1.2mm - 2.75mm 6M in stock (or customized)
30×30 / 20×40 / 30×40 / 25×40 1.2mm - 3.5mm 6M in stock (or customized)
40×40 / 50×50 / 30×50 / 25×50 / 30×60 / 40×60 1.2mm - 4.75mm 6M in stock (or customized)
60×60 / 50×70 / 40×80 / 40×50 1.2mm - 5.75mm 6M in stock (or customized)
70×70 / 60×80 / 50×80 / 100×40 / 50×90 1.5mm - 5.75mm 6M in stock (or customized)
75×75 / 80×80 / 90×90 / 60×100 / 50×100 / 120×60 / 100×80 / 60×90 1.5mm - 7.75mm 6M in stock (or customized)
100×100 / 120×80 1.8mm - 7.75mm 6M in stock (or customized)
120×120 / 130×130 / 180×80 / 160×80 / 100×150 / 140×80 / 140×60 2.5mm - 10.0mm 6M in stock (or customized)
140×140 / 150×150 / 100×180 / 200×100 2.5mm - 10.0mm 6M in stock (or customized)
160×160 / 180×180 / 200×150 3.5mm - 11.0mm 6M in stock (or customized)
200×200 / 250×150 / 100×250 3.5mm - 11.0mm 6M in stock (or customized)
250×250 / 250×200 / 300×150 / 300×200 4.5mm - 15.0mm 6M in stock (or customized)
300×300 / 350×200 / 350×250 / 300×150 4.5mm - 15.0mm 6M in stock (or customized)
350×350 / 350×300 / 450×250 / 400×300 / 500×200 4.5mm - 15.75mm 6M in stock (or customized)
400×400 / 280×280 / 450×300 / 450×200 / 400×350 / 400×250 / 500×250 / 500×300 4.5mm - 15.75mm 6M in stock (or customized)
Product Gallery
Square hollow steel tube profile close-up view Steel tube manufacturing facility and equipment Various steel tube sizes and specifications display Steel tube quality inspection process Steel tube packaging and bundling for export Steel tube warehouse storage and inventory
Company Overview
We are a comprehensive steel pipe enterprise integrating production, processing, and sales operations. Our specialization includes steel tubes, square tubes, seamless square tubes, thick wall square tubes, cold drawn square tubes, and various specialized steel profiles.
Product Range
We manufacture square tubes and rectangular tubes in comprehensive size ranges: 20×20mm to 800×800mm square tubes, 20×30mm to 400×800mm rectangular tubes, with thickness from 0.6mm to 28mm, offering up to 2800 different specifications.
Manufacturing Partnerships
As authorized partners with major steel pipe manufacturers including Tianjin Seamless Steel Pipe Factory, Baotou Steel Pipe Factory, Chengdu Steel Pipe Factory, Wuxi Steel Pipe Factory, and Baosteel Steel Pipe Factory, we maintain stringent quality standards and competitive pricing.
Applications
Our products serve diverse industries including steel structures, large venues, exhibition centers, lifting machinery, shipbuilding, storage shelves, decoration, transportation facilities, airport construction, railway vehicles, bridge support, mining support, multi-level parking facilities, outdoor advertising, fitness equipment, wind power equipment, and vehicle manufacturing.
Steel manufacturing facility and production line overview
Company Advantages
Competitive Pricing
We implement strategic low-cost market competition through strong sales foundations, financial strength, and diversified operational models. Our advanced management systems ensure operating costs remain lower than industry peers while maintaining strong development momentum.
Quality Assurance
Professional quality control systems monitor every step from procurement to sales. We continuously track steel mill quality to ensure reliability and promptly address any quality concerns with satisfactory resolutions.
Comprehensive Service
24-hour distribution services via road, rail, and sea transport. Complete steel product portfolio with simplified ordering processes through telephone, telex, internet, and remote ordering systems. Our foundation is built on unity and integrity, driven by a spirit of advancement.
Global Markets
We serve customers across Europe, America, Africa, Southeast Asia, and other international markets. We welcome both new and existing customers to discuss business opportunities and establish productive partnerships.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person Gao Ben

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