Specifications of cold-drawn seamless pipes
Cold-drawn seamless pipes are high-precision steel pipes made by cold-drawing process, with excellent dimensional accuracy, smooth surface quality and high mechanical properties.
Specification range of cold-drawn seamless pipes:
Item | Specification range | Notes |
Outer Diameter (OD) | 6mm - 200mm | Common outer diameter range, suitable for different |
Wall Thickness (WT) | 0.5mm - 30mm | Thin-wall and thick-wall tubes are suitable for |
Length (L) | 2m - 12m (customizable) | Fixed and unfixed lengths are available to meet |
Standard | GB/T 8162, GB/T 8163, ASTM A106 | Chinese and international standards to ensure |
Outer diameter and pressure correspondence table under different wall thicknesses:
Outer diameter (mm) | Wall thickness (mm) | Maximum pressure (MPa) | Application areas |
10 | 1 | 50 | Precision instruments, fluid pipelines |
20 | 2 | 100 | Hydraulic system, auto parts |
50 | 5 | 200 | Oil and natural gas transmission pipelines |
100 | 8 | 250 | High pressure boiler, machinery manufacturing |
Advantages of cold-drawn seamless pipes
1. High dimensional accuracy: The cold-drawing process makes it extremely accurate and suitable for precision machinery and hydraulic systems.
2. Good surface quality: The smooth surface reduces friction and helps transportation and mechanical movement.
3. Excellent mechanical properties: Cold working strengthens and improves tensile, yield and compressive strength, and adapts to high-intensity working environments.
Cold-drawn seamless pipes are widely used in various industrial fields due to their excellent performance and diverse specifications. As the process improves, it will continue to provide important support for precision manufacturing and high-pressure pipelines.
