China Black Surface Treatment Seamless Square Steel Pipe 30*30-500*500 for Construction and Machinery
Price:
US $653-987 / Ton
MOQ:
10 Tons per size
Delivery Time:
Negotiable
Product Description
Black Square Steel Pipe - Seamless & Galvanized Options
Comprehensive range of square steel tubes including seamless black iron and galvanized varieties for industrial applications.
Product Specifications
| Product Type | Size Range | Thickness | Length |
|---|---|---|---|
| Round Pipe | OD10mm - 1000mm | 4mm - 30mm | Custom Lengths |
| Square Pipe | 10mm×10mm - 1000mm×1000mm | 1.2mm - 30.0mm | 6M Standard |
| Rectangle Pipe | 20mm×40mm - 400mm×700mm | 1.2mm - 30.0mm | 6M Standard |
| L/T/Z Window Section | 28mm/38mm | 0.5mm - 1.5mm | Custom Lengths |
Technical Details
- Materials: A106B, SS400, S235JR, S275JR, S355JR, 1020, 1045, 4140, etc.
- Surface Treatment: Black, galvanized, or painted finishes
- Packing: Export standard packing (bundles, seaworthy package, container shipment)
- Delivery Port: Shanghai, China
- Lead Time: Within 30 days after receiving original L/C or deposit
- MOQ: 10 Tons per size
- Production Capacity: 10,000MT per month
Applications
Widely used in structural applications, motorbike and automobile manufacturing, ornamental uses, medical equipment, sports equipment, and home furniture.
Standard Size Specifications
Comprehensive size range available with 6M standard length or custom lengths:
Small to Medium Sizes
| Size Range | Wall Thickness |
|---|---|
| 20×20 / 25×25 | 1.2mm - 2.75mm |
| 30×30 / 20×40 / 30×40 / 25×40 | 1.2mm - 3.5mm |
| 40×40 / 50×50 / 30×50 / 25×50 / 30×60 / 40×60 | 1.2mm - 4.75mm |
Medium to Large Sizes
| Size Range | Wall Thickness |
|---|---|
| 60×60 / 50×70 / 40×80 / 40×50 | 1.2mm - 5.75mm |
| 70×70 / 60×80 / 50×80 / 100×40 / 50×90 | 1.5mm - 5.75mm |
| 75×75 / 80×80 / 90×90 / 60×100 / 50×100 / 120×60 / 100×80 / 60×90 | 1.5mm - 7.75mm |
Large & Heavy-Duty Sizes
| Size Range | Wall Thickness |
|---|---|
| 100×100 / 120×80 | 1.8mm - 7.75mm |
| 120×120 / 130×130 / 180×80 / 160×80 / 100×150 / 140×80 / 140×60 | 2.5mm - 10.0mm |
| 140×140 / 150×150 / 100×180 / 200×100 | 2.5mm - 10.0mm |
Product Gallery
Company Overview
We are a comprehensive steel pipe enterprise integrating production, processing, and sales operations. Our extensive product range includes steel tubes, square tubes, seamless square tubes, thick wall square tubes, cold drawn square tubes, and specialized profiles.
Product Range
- Full size range: 20×20 - 800×800 square tubes, 20×30 - 400×800 rectangular tubes
- Thickness: 0.6mm - 28mm with over 2,800 specification varieties
- Materials: Q235B, Q345B, 16MN, stainless steel, alloy, and non-standard seamless square tubes
- Custom processing available for iron pipes, fence pipes,扶手 pipes, heating pipes, and decorative pipes
Industry Applications
Steel structures, large venues, exhibition centers, lifting machinery, shipbuilding, storage shelves, decoration, transportation facilities, airport construction, railway vehicles, bridge support, mine support,立体 garages, outdoor advertising, fitness equipment, wind power equipment, and vehicle manufacturing.
Company Advantages
Competitive Pricing
Strategic partnerships with major steel manufacturers ensure lowest market prices. Advanced management systems maintain operational efficiency and cost-effectiveness.
Quality Assurance
Professional quality control from procurement to sales. Continuous tracking of steel mill quality ensures reliable products. Quick resolution of quality concerns with satisfactory outcomes.
Comprehensive Service
24-hour distribution service with multiple transport options. Complete steel product catalog with numerous varieties. Simplified ordering process via telephone, telex, internet, and remote ordering systems.
Main Markets: Europe, America, Africa, Southeast Asia
We welcome both existing and new customers to contact us for negotiations and business communications.
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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