No. 20 low and medium pressure boiler tube 273*20 seamless steel tube GB T3087 related introduction.
1. Overview. No. 20 low and medium pressure boiler tube is a widely used seamless steel tube, which is mainly used in the manufacture of various boilers, pressure vessels, pipes and other equipment. The steel pipe is made of high-quality carbon structural steel, which has good mechanical properties and corrosion resistance. The standard is GB T3087, and the specification is 273*20mm in diameter.
2. Features. 1.Good mechanical properties: No. 20 low and medium pressure boiler tube has high tensile strength and yield point, and at the same time has good plasticity and toughness, and can withstand large pressure and temperature changes.
2.Strong corrosion resistance: The steel pipe has been specially treated with good corrosion resistance and can adapt to the use of various complex environments.
3.Excellent process performance: No. 20 low and medium pressure boiler tubes are easy to process and weld, and can meet various process requirements.
4.Long service life: Due to its excellent corrosion resistance and mechanical properties, No. 20 low and medium pressure boiler tubes have a long service life, which is able to reduce the frequency of replacement and maintenance.
Third, the field of application.
No. 20 low and medium pressure boiler tubes are widely used in the following fields:
1.Electric power industry: used to manufacture various power station boilers, thermal power plants of thermal power plants and pipelines and other equipment.
2.Petrochemical: used in the manufacture of various petrochemical equipment, pipelines and storage tanks.
3.Paper industry: used to manufacture various paper machines, pulp conveying pipelines and other equipment.
4.Food industry: used to manufacture various food processing equipment, pipes and containers, etc.
5.Textile industry: pipes and fittings for manufacturing various textile machinery, printing and dyeing machinery, etc.
6.Other fields: It is also widely used in machinery, construction, transportation and other fields.
Fourth, the production process.
The production process of No. 20 low and medium pressure boiler tubes mainly includes the following steps:
1.Billet preparation: high-quality carbon structural steel is selected as raw material, and inspected and trimmed.
2.Heating and rolling: The billet is heated to the proper temperature, followed by processes such as piercing, rolling, and sizing to obtain the desired tube size.
3.Heat treatment: The steel pipe is quenched, tempered and other heat treatment to improve its mechanical properties and corrosion resistance.
4.Surface treatment: Shot peening, pickling, phosphating and other treatments are carried out on the surface of the steel pipe to improve its corrosion resistance and aesthetics.
5.Inspection and packaging: Strict inspection of steel pipes, including size, appearance, non-destructive testing, etc., to ensure that their quality meets the standard requirements, and then packaging and warehousing.
5. Precautions for use.
When using No. 20 low and medium pressure boiler tubes, the following points should be noted:
1.Select the appropriate pipe specifications and models according to the actual needs, and ensure that their quality meets the standard requirements.
2.During installation and use, relevant specifications and operating procedures should be followed to avoid illegal operation and damage to pipes.
3.For the use in special environments, such as high temperature, high pressure, corrosion, etc., corresponding protective measures should be taken to prolong the service life of the pipe.
4.During the maintenance and upkeep process, regular inspection and cleaning should be carried out to ensure the integrity and normal use of the pipes.
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