Hot-dip galvanized steel pipe specifications and models refer to the specific size and model identification of hot-dip galvanized steel pipes during the production and sales process, which are essential for the selection, application, and installation of steel pipes. Hot-dip galvanized steel pipes are a type of steel pipe that has been hot-dip galvanized. They have the advantages of corrosion resistance and wear resistance and are widely used in construction, transportation, agriculture, and other fields.

1. The meaning of hot-dip galvanized steel pipe specifications and models.
The specifications and models of hot-dip galvanized steel pipes are usually composed of parameters such as outer diameter, wall thickness, and length. Common specifications include DN15, Φ21.32.77, 6 meters, etc. These numbers and symbols represent the specific size and shape of the steel pipe. Among them, DN15 represents a steel pipe with a nominal diameter of 15mm, Φ21.32.77 represents a steel pipe with an outer diameter of 21.3mm and a wall thickness of 2.77mm, and 6 meters represents a steel pipe with a length of 6 meters.

2. The importance of specifications and models of hot-dip galvanized steel pipes.
-Specifications and models directly affect the use scenarios and installation methods of hot-dip galvanized steel pipes. Choosing appropriate specifications can effectively reduce waste and improve construction efficiency.
-Reasonable specifications and models can ensure the bearing capacity and connection stability of steel pipes, and ensure the safety and stability of the project.

3. Selection principles of specifications and models of hot-dip galvanized steel pipes.

-Determine the appropriate diameter, wall thickness, and length according to project requirements to avoid excessive or insufficient.
-Select specifications and models with better corrosion resistance according to environmental requirements.
-Consider the connection method and installation requirements of steel pipes and select specifications and models that meet the standards.

4. Application scope of specifications and models of hot-dip galvanized steel pipes.
The specifications and models of hot-dip galvanized steel pipes are suitable for various building structures, municipal engineering, water and gas pipelines, and other fields. In construction, they are often used for stair handrails, railings, bridges, etc.; in the field of transportation, they are used for road guardrails, signal brackets, etc.; in agriculture, they are used for greenhouse brackets, water conservancy facilities, etc.

5. Identification method of hot-dip galvanized steel pipe specifications and models.
The specifications and models of hot-dip galvanized steel pipes are usually marked on the surface of the steel pipes by printing, labeling, engraving, etc. so that users can accurately identify and use them. The markings should be clear, wear-resistant, and not easy to fall off.