In pipe fittings such as elbows, reducers, tees, and flange products, “seamless” and “straight seam” are two commonly used pipe manufacturing processes, which refer to different pipe manufacturing methods with different characteristics and applicability.
Seamless
There are no longitudinal welds on seamless products, and they are made from seamless steel pipes as raw materials.
Features
1. High strength: Due to the absence of welds, the strength of seamless pipes is usually higher than that of straight seam pipes.
2. Good pressure resistance: suitable for high pressure, high temperature, and corrosive environments.
3. Smooth surface: The inner and outer surfaces of seamless pipes are relatively smooth, suitable for situations where the smoothness of the inner and outer walls is required.
Application: Seamless is commonly used in high-pressure, high-temperature, important industrial and nuclear power plants that require high strength and safety.
Straight seam
On the straight seam product, there is a clear weld seam, which is processed using straight seam steel pipes as raw materials,
Features
1. Low production cost: Compared to seamless pipes, straight seam pipes have lower production costs.
2. Suitable for large-diameter: Straight seam pipes are suitable for the manufacturing of large-diameter and large wall thickness pipelines.
3. Customizable: During the production process, different specifications and shapes can be customized according to customer needs.
Application: Straight seam pipes are widely used in general fluid transportation, structural applications, municipal engineering, gas transportation, liquid and bulk cargo, and other fields.
Selection considerations
1. Usage: Choose the appropriate pipe making process according to the usage environment and requirements of the pipeline. For example, seamless products are often chosen in high demand environments.
2. Cost: Due to different manufacturing processes, the production cost of seamless products is usually higher, while straight seam products are more competitive in cost.
3. Strength requirement: If used under high intensity and high pressure working conditions, seamless may be more suitable.
4. Appearance and smoothness: Seamless usually has a smoother surface, suitable for situations where there are requirements for the smoothness of the inner and outer surfaces of pipelines.
In actual selection, it is necessary to weigh these factors based on specific project requirements and economic considerations to determine whether to use seamless or straight seam products.
Post time: Dec-05-2023
