Characteristics of Stainless Steel Tube Heating
Commonly used in heating tubes is the stainless steel tube heating, but stainless steel materials vary in quality. Today, let's discuss the characteristics of stainless steel materials:
General stainless steel materials used in civilian applications include 201 stainless steel, 202 stainless steel, 301 stainless steel, 304 stainless steel, and 316 stainless steel.
By convention, grades 201 and 202 are referred to as stainless iron due to their magnetic properties and attraction to magnets. Grade 301 is non-magnetic, but becomes magnetic after cold working, attracting magnets. Grades 304 and 316 are non-magnetic and do not attract magnets, remaining non-magnetic.
The main reason for the magnetism lies in the different proportions of elements such as chromium and nickel in the raw material of stainless steel pipes, as well as the variation in microstructure.
Combining these characteristics, using a magnet to determine the quality of stainless steel is also a feasible method. However, this method is not scientific, as during the production process of stainless steel, cold drawing, hot drawing, and post-treatment can greatly affect the magnetism. Good post-treatment results in less or no magnetism, while poor treatment leads to greater magnetism, which does not reflect the purity of the stainless steel.
Users can distinguish the packaging and appearance based on factors such as roughness, evenness of thickness, and the presence of any stains on the surface.
Our factory maintains strict and thorough quality control throughout the production process. Even with recycled materials, the composition and microstructure of our products are guaranteed, ensuring minimal quality variation. In contrast, some small workshops are limited by production environment, equipment, labor, and other factors, making it difficult to maintain consistent product quality, resulting in a mix of good and poor quality.
Ensuring the quality of stainless steel heating tubes requires selecting high-quality stainless steel pipe material, and due diligence will be exercised in the procurement of stainless steel raw materials.
