Physical And Chemical Properties
In terms of physical properties, cold drawn seamless pipes have the following characteristics:
High strength: at the same weight, its strength is much higher than other materials, making it able to be used in stress environments subject to high pressure and heavy loads.
Good toughness: it can resist low temperature shock and vibration load, and is used in extremely harsh environments.
Strong corrosion resistance: It has good corrosion resistance when the surface is properly treated.
High thermal conductivity: can be used in high temperature and high pressure environment.
In terms of chemical properties, the chemical properties of this seamless tube are related to its material composition. Some specific materials (such as GH2696 Fe-Nichro-based superalloy) have satisfactory oxidation resistance, gas corrosion resistance at high temperatures, and stress corrosion resistance in salt spray atmospheres.
The Main Application Areas Of Cold Drawn Seamless
Oil and gas industry: Used in oil well casing, gas well casing and oil and gas pipelines to withstand harsh environmental conditions such as high pressure, high temperature and corrosion.
Power industry: widely used in boilers and heating equipment, such as steam turbines, pressure vessels and heat exchangers.
Chemical industry: In the chemical process, pipelines need to withstand harsh conditions such as high pressure, high temperature and corrosion, and cold drawn seamless pipes can meet these requirements.
Automotive industry: It is used to manufacture engine exhaust pipes, fuel pipes and brake systems, etc., with high strength, wear resistance and corrosion resistance.
Construction and bridge engineering: used in the manufacture of load-bearing structures, support columns, bridge supports and cross-river pipelines.
Machinery and equipment manufacturing: widely used in all kinds of machinery and equipment manufacturing, such as mining machinery, metallurgical equipment and engineering machinery.
Maintenance of Cold Drawn Seamless Pipe
Quality check:
Before using cold drawn seamless pipes, it is necessary to carry out a comprehensive quality check. Check the overall quality of the seamless pipe by observing the appearance quality, such as scratches, dents or breakage.
Check whether the length, diameter, thickness and other parameters of the seamless pipe meet the standard requirements. If the seamless pipe is found to have quality problems, it is prohibited to use and contact the supplier.
Safe operation:
Safety procedures must be followed when operating tubes. This includes wearing protective gear such as hard hats, safety shoes and gloves. At the same time, workers should avoid excessive pressure or impact on seamless pipes.
When pressurizing the seamless pipe, the pressurizer should first rise slowly to avoid sudden pressurization.
Do not insert your hand into the seamless tube or touch the heater directly to prevent burns or other injuries.
Cleaning and maintenance:
For cold-drawn seamless pipes using high temperature or dangerous media, regular cleaning and maintenance are required. Before cleaning, the water supply valve and gate of the seamless pipe must be closed, and the pipe must be cleaned with appropriate cleaning agents and equipment to prevent media residue.
Check the quality of the cleaning agent to ensure that the cleaning effect can meet the requirements. After cleaning, the agent should be permeated for a period of time to further remove the dirt left in the seamless tube.
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