Low-temperature steel pipe is a type of steel with special properties. It is developed on the basis of carbon structural steel. Due to its unique corrosion resistance and good mechanical properties, it is mainly used as pipelines for petroleum, chemical and other equipment and equipment. pieces.
The function of low temperature steel pipe:
1. The insulation layer of low-temperature pipelines is made of rigid polyurethane foam.
2. Submerged arc welded straight seam pipes can produce pipelines with a length of 9 meters under all bending conditions;
3. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes, and welded pipes with larger diameters can be produced from narrower blanks;
4. Welding technology that is easy to straighten (such as lfjtwb and xr-iii type).
5. Steel plate rolling machines can be used for continuous hot bending.
6. Large-diameter seamless steel pipes rolled with large diameters and thick walls improve the accuracy level due to the reduction of internal and external burrs.
7. Steel pipes made of high-quality strips or wires that are rolled and welded can be used for a long time in the temperature range of -40--60°C without deformation.
8. It plays an important role in manufacturing ordinary low-alloy structural steel, high-strength low-alloy structural steel and stainless steel.
9. Other methods of external anti-corrosion and internal anti-corrosion are available as needed.
10. Socket-type connection is an updated product of the traditional connection method, making installation faster and more convenient.
11. Because this product has high surface finish and is easy to process, it is widely used in various steel structure construction fields.
Scope of application: widely used in pipelines for transporting oil, natural gas, etc. in liquid transportation projects; superheated steam traps for feed water heaters and condensers in urban water supply and heating pipe network systems and feed water preheaters for pulverized coal boilers; petrochemical industry It is used in reactors, reboilers, etc. in catalytic cracking units in refineries; it is used in the machinery industry to make various molds, and in the automobile industry it is used to make punching dies and wire drawing dies for cold stamping.
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