As a reliable supplier, Chengdu Shushengtai Steel Co., Ltd. provides high-quality Stainless Steel Tubing with precise wall thicknesses in accordance with national standards. Proper wall thickness is essential to ensure strength, corrosion resistance, and long-term performance in various industrial, commercial, and construction applications.
|
Nominal Diameter (DN) |
Standard Wall Thickness (mm) |
Application Notes |
|
DN15 |
0.8 |
Suitable for small fluid pipelines and instrumentation tubing. |
|
DN20, DN25 |
1 |
Commonly used for water supply, gas pipelines, and light industrial systems. |
|
DN32, DN40, DN50 |
1.2 |
Ideal for medium-flow pipelines and HVAC systems. |
|
DN65 |
1.5 |
Used in larger fluid transport, industrial water supply, and process systems. |
|
DN80, DN100 |
2 |
High-capacity pipelines requiring enhanced pressure resistance. |
|
DN125, DN150, DN200 |
2.5 |
Heavy-duty pipelines for industrial, chemical, and municipal applications. |
|
DN250, DN300 |
3 |
Large-scale pipelines for high-flow systems and high-pressure environments. |
1. DN15 (0.8 mm wall thickness)
Designed for small-scale fluid transfer and precision instrumentation lines, DN15 tubes ensure stable flow control in low-pressure systems and laboratory equipment.
• Typical Pressure Rating: up to 3.5 MPa
• Common Lengths: 6–12 m
• Key Features: lightweight, easy to bend, excellent for cleanroom and analytical applications.
2. DN20–DN25 (1.0 mm wall thickness)
Commonly used in domestic water supply, gas delivery, and light industrial systems, this size range balances flexibility, flow capacity, and pressure durability.
• Typical Pressure Rating: up to 4.0 MPa
• Flow Rate Range: approx. 1.0–2.5 m³/h
• Key Features: smooth internal surface for low flow resistance, quick installation with standard fittings.
3. DN32–DN50 (1.2 mm wall thickness)
Ideal for medium-flow pipelines, including HVAC, process cooling, and general utility systems, offering reliable performance and ease of installation.
• Typical Pressure Rating: 4.0–5.0 MPa
• Operating Temperature: up to 400°C (depending on material grade)
• Key Features: optimized wall thickness for durability, excellent thermal transfer efficiency.
4. DN65 (1.5 mm wall thickness)
Suitable for larger process and industrial water pipelines, DN65 tubing provides increased pressure resistance and durability under continuous operation.
• Typical Pressure Rating: up to 5.5 MPa
• Flow Capacity: approx. 6–10 m³/h
• Key Features: enhanced mechanical strength, adaptable for flange or welded connections.
5. DN80–DN100 (2.0 mm wall thickness)
Applied in high-capacity fluid transport systems, these sizes are favored in manufacturing and energy facilities requiring enhanced mechanical strength and pressure integrity.
• Typical Pressure Rating: 6.0–6.4 MPa
• Flow Capacity: up to 20 m³/h
• Key Features: high rigidity, suitable for high-load installations, minimal deformation under stress.
6. DN125–DN200 (2.5 mm wall thickness)
Used for heavy-duty industrial, chemical, and municipal pipelines, these diameters handle substantial flow rates and elevated operating pressures with high structural reliability.
• Typical Pressure Rating: up to 7.0 MPa
• Operating Temperature: -40°C to 500°C (material-dependent)
• Key Features: excellent corrosion resistance, compatibility with complex piping networks, long service life.
7. DN250–DN300 (3.0 mm wall thickness)
Designed for large-scale and high-pressure systems, such as main process lines, distribution networks, and central plant operations, ensuring safe and efficient fluid transport over long distances.
• Typical Pressure Rating: 8.0 MPa or higher
• Flow Capacity: 50–120 m³/h
• Key Features: robust structure for long-distance transport, high dimensional stability, supports heavy mechanical loads.