Development trends and prospects of anti-corrosion steel pipes

Development trends and prospects of anti-corrosion steel pipes

The type of anti-corrosion steel pipe should be selected for anti-corrosion materials based on the working pressure, purpose, and the environment in which it is transported. Ordinary grade TPEP anti-corrosion steel pipe steel plate is divided by thickness, with thin steel plate<4mm (thinnest 0.2mm), medium thick steel plate 4-6 mm, and extra thick steel plate 60-115mm. The buried anti-corrosion steel pipe substrate undergoes complex physical and chemical reactions with the molten plating solution, forming a corrosion-resistant zinc iron alloy layer with a compact structure. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate. Therefore, it has strong corrosion resistance. The galvanized steel pipe for sand flushing is widely used. In addition to being used as the pipeline pipe for water, gas, oil and other general low pressure fluids, it is also used as the oil well pipe and oil pipeline in the petroleum industry, especially in offshore oil fields, the oil heater, condensate cooler, coal distillate washing oil exchanger pipe for chemical coking equipment, as well as the pipe for trestle pile and support frame of mine tunnels.

The basic requirement for the service life of pipeline system design is at least 30 years. At the same time, we should continuously reduce the number of car repairs to ensure the normal use and safe management of the pipeline. Therefore, pipeline builders and construction companies should attach great importance to the selection of anti-corrosion steel pipe materials. With the development of modern information technology in China, the purchased anti-corrosion materials should have the following advantages:

1. Construction convenience: Construction convenience refers to the simplified and convenient steps, which can be carried out in both the processing plant and the site;

2. Longer lifespan: Upgrading from the original design lifespan of 2030 to a longer lifespan, in order to save on replacement and maintenance costs;

3. Cost management economy: Cost management economy refers to the proportion of product service quality and service life to the invested cost. In simple terms, it refers to high-quality and cost-effective products;

4. Compliance with environmental protection: In line with the progress of the times, environmental requirements are becoming increasingly strict. Considering health, safety, and environmental factors, products that cannot meet environmental requirements will be gradually phased out. Builders must actively pay attention to environmental issues, then choose high-quality materials, and be responsible to society;

The anti-corrosion protection system with corrosion-resistant steel is basically long-term, and the actual effect can be known for a long time. Whether petroleum asphalt, Coal tar enamel, epoxy coal tar pitch, cold tape, FBE PE powder or three have different advantages through long-term material real testing throughout the development process, although the protection project of petroleum asphalt, tar enamel, epoxy coal tar pitch cannot be eliminated in the short term, But the future trend should be to melt the mainstream products of epoxy powder, three PEs, and polyethylene/polypropylene strip cooling.