DN200 thin-walled spiral steel pipe is a pipeline material widely used in petroleum, chemical industry, natural gas and other fields. It has the advantages of excellent corrosion resistance, high compressive strength and long service life, so it has been widely used in many engineering projects. This article will introduce the characteristics, production process, application fields and matters that need to be paid attention to when purchasing DN200 thin-walled spiral steel pipe.
1. Characteristics of DN200 thin-walled spiral steel pipe.
DN200 thin-walled spiral steel pipe is a kind of steel pipe made by high-frequency resistance welding process, which has the following characteristics:
1.Strong corrosion resistance: Because DN200 thin-walled spiral steel pipe is made of high-quality raw materials, and is strictly derusted and anti-corrosion treatment in the production process, it has strong corrosion resistance and can effectively resist the erosion of various chemicals.
2.High compressive strength: DN200 thin-walled spiral steel pipe has a thin wall thickness, but its compressive strength is very high, and it can withstand the fluid impact of high pressure and high flow rate, so it has been widely used in petroleum, chemical, natural gas and other fields.
3.Long service life: Because DN200 thin-walled spiral steel pipe has the advantages of corrosion resistance and high compressive strength, its service life is long, generally reaching decades or even longer.
4.Easy installation: DN200 thin-walled spiral steel pipe has a variety of connection methods, the most commonly used of which are welded and flange connection, which have the advantages of easy installation and good sealing.
2. Production process of DN200 thin-walled spiral steel pipe.
DN200 thin-walled spiral steel pipe is made by high-frequency resistance welding process, and its production process mainly includes the following steps:
1.Preparation stage: The steel is sent to the workshop, where it is ready to move on to the next stage through rust removal, cleaning and other treatments.
2.Forming stage: The steel is sent to the forming machine, and after forming, welding and other processes, it is made into the prototype of DN200 thin-walled spiral steel pipe.
3.Heat treatment stage: heat treatment is carried out on the formed steel pipe to eliminate stress and improve mechanical properties.
4.Anti-corrosion treatment stage: The heat treated steel pipe is treated with rust removal and anti-corrosion to improve its corrosion resistance.
5.Quality inspection stage: quality inspection of finished steel pipes, including appearance inspection, size testing, pressure testing, etc., to ensure that the product quality meets the standard requirements.
3. Application field of DN200 thin-walled spiral steel pipe.
DN200 thin-walled spiral steel pipe is widely used in petroleum, chemical, natural gas and other fields, and the specific application fields include the following aspects:
1.Petrochemical: In the petrochemical industry, DN200 thin-walled spiral steel pipe is widely used in transporting petroleum, chemical raw materials and other fluids, with the advantages of corrosion resistance and high compressive strength.
2.Natural gas transportation: In the field of natural gas transportation, DN200 thin-walled spiral steel pipe is widely used in long-distance transportation of natural gas, which has the advantages of high efficiency, energy saving and environmental protection.
3.Water supply engineering: In water supply engineering, DN200 thin-walled spiral steel pipe is widely used in the laying of water supply pipelines, which has the advantages of long service life and stable water quality.
4.Construction engineering: In construction engineering, DN200 thin-walled spiral steel pipe is widely used in water supply and drainage pipes, fire pipes, etc., which has the advantages of beauty and durability.
Fourth, the purchase of DN200 thin-walled spiral steel pipe needs to pay attention to the matters.
When purchasing DN200 thin-walled spiral steel pipe, you need to pay attention to the following points:
1.Choose a regular brand: When purchasing DN200 thin-walled spiral steel pipe, you should choose a regular brand and manufacturer to ensure product quality and after-sales service.
2.Check the quality of the product: In the process of purchasing, the quality of the product should be carefully checked, including whether the appearance quality, dimensional accuracy, anti-corrosion treatment and other aspects meet the requirements.