Enhanced internal and external plastic coated steel pipe coating thickness standards and related requirements

Number of visits：4 seconds Update time：2025-01-24

I. Characteristics of reinforced internal and external plastic coated steel pipe

Reinforced grade internal and external plastic-coated steel pipe is a high-performance piping material, which has a plastic coating added through a special process on the basis of ordinary steel pipe. This kind of steel pipe has the following significant features:

1. Strong anti-corrosion performance

The internal and external coatings can effectively isolate air, water and other corrosive media, which significantly improves the anti-corrosion performance of the steel pipe and prolongs its service life.

2. Good abrasion resistance

The coating has good abrasion resistance, which can effectively resist friction with other objects during use, reduce wear and tear, and maintain the integrity and performance of the pipe.

3. High temperature resistance

The coating material has high heat resistance, can maintain stable performance in high temperature environment, applicable to a variety of working environments.

4. High pressure resistance

The coating material has high compressive strength, can withstand greater pressure, to ensure the stable operation of the pipeline system.

II. strengthen the internal and external plastic coated steel pipe coating thickness standard

According to the relevant national standards, the coating thickness of reinforced internal and external plastic coated steel pipe should meet the following requirements:

1. Primer film thickness

The thickness of primer film should be more than 50 microns to ensure good adhesion between primer and steel pipe surface. This step is the foundation to ensure a solid coating.

2. Topcoat film thickness

Topcoat film thickness should be adjusted according to the specific use environment and requirements, but generally should be more than 100 microns. This helps to improve the corrosion resistance of the steel pipe, especially in harsh environments.

3. Detection method

Detection of coating thickness should be used in accordance with national standards of equipment, such as wet and dry film thickness measuring instrument. The coating thickness should be strictly controlled during construction to ensure that it meets the standard requirements.

III. the use of reinforced internal and external plastic coated steel pipe precautions

1. Procurement precautions

When purchasing, products from regular manufacturers with production license and product quality inspection report should be selected. This ensures reliable product quality and avoids the use of poor-quality materials.

2. Construction precautions

At the construction site, the operation should be carried out in strict accordance with the design requirements and construction specifications. Ensure that the coating thickness meets the standard requirements to avoid inadequate coating thickness due to improper construction, which will affect the anti-corrosion performance of the pipeline.

3. Maintenance precautions

In daily use, the reinforced internal and external plastic coated steel pipe should be inspected and maintained regularly. Timely detection and treatment of problems, such as coating damage or pipe leakage, can extend the service life of the pipe and ensure the normal operation of the system.