In the field of industrial production and manufacturing, the choice of materials is directly related to the performance, durability, and production cost of the product. Among them, 310S seamless stainless steel pipes, especially 310S stainless steel seamless steel pipes, have occupied a pivotal position in many industries with their excellent high temperature resistance, oxidation resistance, and corrosion resistance.
Commonly used implementation standards are: Standards: ASTM A312, ASTM A790, ASMESA213, ASMESA249, ASMESA789, and GB/T14976.
Production methods include: cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, heat treatment + rinse delivery.
Chemical composition%: Nickel: 19.00~22.00, Chromium: 24.00~26.00, Molybdenum: ≤0.75, Silicon ≤1.50, Manganese: ≤2.00, Carbon: ≤0.08, Sulfur: ≤0.030 Phosphorus: ≤0.035
First, the basic characteristics of 310S seamless stainless steel pipe
310S stainless steel, also known as 2520 stainless steel, is a high-alloy austenitic stainless steel. The main purpose of this alloy design is to improve the oxidation resistance and corrosion resistance of the material in high temperature environments. 310S stainless steel can still maintain good strength and oxidation resistance when the continuous use temperature is up to 1150°C, making it an ideal material choice for extreme environments.
Second, the production process of 310S seamless stainless steel pipe
The production process of 310S seamless stainless steel pipe mainly includes raw material preparation, smelting and casting, hot rolling or cold drawing, heat treatment, pickling and passivation, inspection and testing, packaging, and delivery.
- Raw material preparation: Ensure that the 310S stainless steel raw materials used meet the standards and have no defects such as inclusions and cracks.
- Smelting and casting: Smelting through electric arc furnaces or vacuum induction furnaces, strictly controls the chemical composition and ensures the uniform distribution of alloy elements.
- Hot rolling or cold drawing: Select the appropriate forming process according to the requirements of pipe diameter and wall thickness. Hot rolling is suitable for large-diameter thick-walled pipes, while cold drawing is suitable for small-diameter thin-walled pipes. Both can ensure the dimensional accuracy and surface quality of steel pipes.
- Heat treatment: usually includes solution treatment and stabilization treatment to improve the organization and performance stability of the material.
- Pickling and passivation: Remove the oxide scale and oil stains on the surface of the steel pipe to form a dense passivation film to enhance corrosion resistance.
- Inspection and testing: including appearance inspection, dimension measurement, mechanical property test, water pressure test, eddy current flaw detection, etc., to ensure that each steel pipe meets the quality standards.
- Packaging and delivery: Use appropriate packaging materials and methods to prevent damage during transportation, and provide necessary quality certification documents and logos.
Third, the application field of 310S seamless stainless steel pipe
Due to its excellent high temperature resistance and corrosion resistance, 310S seamless stainless steel pipe is widely used in the following fields:
- Petrochemical: used for steam pipes, heating furnace tubes, heat exchangers, and other equipment under high temperature and high pressure.
- Energy: such as superheater and reheater tube bundles of power station boilers, and some key components of nuclear power plants.
- Food processing: Because it is non-toxic and harmless, it can be used for the piping system of high-temperature sterilization equipment.
- Medical equipment: used for high-temperature steam sterilizers and other medical equipment that need to withstand high temperature environments.
- Automobile manufacturing: especially the exhaust system of high-performance racing cars, which requires materials to withstand extremely high temperatures and pressures.
- Environmental protection equipment: such as flue pipes of incinerators, and pipelines for handling high-temperature corrosive gases.
Fourth, the performance advantages of 310S seamless stainless steel pipes
1. High temperature stability: Under extremely high temperatures, 310S stainless steel can still maintain high strength and good toughness, and is not easy to deform or crack.
2. Excellent oxidation resistance: In a high-temperature oxidizing environment, it can form a dense oxide film to effectively prevent further oxidation reactions.
3. Good corrosion resistance: It exhibits good corrosion resistance to a variety of corrosive media, such as acids, alkalis, salts, etc.
4. Good processing performance: It is easy to weld, cut, bend, and form, and is easy to process into various complex shapes and structures.
5. Long-term reliability: Under the specified conditions of use, it has a long service life and reduces the frequency of maintenance and replacement.
Fifth, suggestions for purchasing 310S seamless stainless steel pipes
Faced with the numerous 310S seamless stainless steel pipe suppliers on the market, it is crucial to make a wise choice. The following suggestions are for reference:
1. Check qualifications: Make sure that the supplier has a legal business license, quality management system certification (such as ISO 9001), and relevant material production licenses.
2. Inspection report: Require suppliers to provide chemical composition analysis reports, mechanical properties test reports, non-destructive testing reports, etc. of the products to verify product quality.
3. Field investigation: If conditions permit, personally visit the supplier’s factory to understand its production process, quality control system, and inventory situation.
4. Price comparison: Under the premise of ensuring quality, reasonably compare the prices of different suppliers to avoid falling into low-price traps.
5. After-sales service: Choose suppliers that provide perfect after-sales service, including but not limited to technical support, quality problem handling, quick response, etc.
In short, 310S seamless stainless steel pipes, especially seamless steel pipes, have become an indispensable and important material in modern industry with their excellent performance and wide application fields. The correct selection and use of 310S seamless stainless steel pipes can not only ensure the stable operation of equipment but also effectively reduce maintenance costs and improve production efficiency. I hope this article can provide readers with useful references and guidance when selecting and using 310S seamless stainless steel pipes.
Post time: Jun-13-2025