304 316 316l 201 square tube stainless steel welded pipe piping
Stainless Steel Welded Square Tube Pipes
Our stainless steel square tube pipes are high-quality welded pipes designed for a wide range of industrial applications. These pipes are manufactured from premium stainless steel grades including 304, 316, and 316L, offering excellent corrosion resistance, durability, and strength.
Applications
Our stainless steel square tube pipes are widely used in:
- Construction and architectural structures
- Mechanical and structural components
- Chemical processing equipment
- Food and beverage processing
- Pharmaceutical and medical equipment
- Automotive and transportation systems
- Oil and gas industries
Product Specifications
We offer customization for various sizes and specifications to meet your specific requirements. Below are our standard product specifications:
| Parameter | Specification |
|---|---|
| Material Grades | 304, 316, 316L |
| Size Range | 10mm × 10mm to 200mm × 200mm |
| Wall Thickness | 0.5mm to 5mm |
| Length | Custom lengths available (typically 6m or 12m) |
| Surface Finish | 2B, BA, No.4, No.8 mirror finish |
| Tolerance | ±0.1mm for size, ±0.05mm for wall thickness |
| Manufacturing Process | Cold formed and welded |
| Certification | ISO 9001, ISO 14001, ASTM A554, EN 10217 |
Technical Properties
Our stainless steel square tube pipes offer excellent mechanical and chemical properties:
| Property | 304 | 316 | 316L |
|---|---|---|---|
| Tensile Strength (MPa) | 515 | 515 | 515 |
| Yield Strength (MPa) | 205 | 205 | 205 |
| Elongation (%) | 40 | 40 | 40 |
| Hardness (HB) | 201 | 201 | 201 |
| Density (g/cm³) | 7.93 | 7.98 | 7.98 |
| Melting Point (°C) | 1400-1450 | 1370-1400 | 1370-1400 |
| Corrosion Resistance | Good | Excellent | Excellent (low carbon version) |
Delivery and Customization
We pride ourselves on our quick turnaround times and flexible customization options:
| Parameter | Details |
|---|---|
| Standard Delivery Time | 7-14 working days |
| Custom Sizes Available | Yes (contact us for custom specifications) |
| Surface Treatment Options | Polishing, pickling, passivation, coloring |
| Packaging | Standard export packaging with protective caps |
| Payment Terms | TT, LC, Western Union |
| Minimum Order Quantity | Flexible (contact us for details) |
Certifications
Our stainless steel square tube pipes come with the following certifications:
- ISO 9001:2015 Quality Management System
- ISO 14001:2015 Environmental Management System
- ASTM A554 Standard Specification for Welded Stainless Steel Mechanical Tubing
- EN 10217 Standard for Welded Stainless Steel Tubes
- CE Marking
- Material Test Reports (MTR) available upon request
Frequently Asked Questions
304 stainless steel contains 18% chromium and 8% nickel, offering good corrosion resistance. 316 stainless steel contains 2-3% molybdenum in addition to chromium and nickel, providing better corrosion resistance, especially in chloride environments. 316L is a low-carbon version of 316 with improved weldability.
Yes, we specialize in custom manufacturing. Please provide us with your specific size requirements, and we'll work with you to produce the exact dimensions you need. Contact our sales team for more information.
Our standard lead time is 7-14 working days for stock sizes. For custom sizes or large orders, the lead time may be longer. We'll provide an accurate delivery estimate once we receive your order details.
Yes, we offer various surface treatments including polishing (No.4, No.8 mirror finish), pickling, passivation, and coloring. These treatments can enhance both the appearance and corrosion resistance of the pipes.
For more information about our stainless steel square tube pipes or to request a quote, please contact our sales team.
