Product introduction:

Physical and chemical properties:

1. Physical properties

Density: The density of 316 stainless steel coil is about 8.03g/cm³, which makes it a clear weight reference in mass calculation and practical application scenarios (such as material selection and transportation).

Thermal conductivity: The thermal conductivity is approximately between 16 and 21W/(m·K) at room temperature. This value indicates that it has a certain ability in heat conduction, but it is less thermally conductive than metals such as copper and aluminum. It can be used in some occasions where thermal conductivity is required but not particularly high.

Thermal expansion coefficient: In the range of 100-900℃, the linear expansion coefficient is basically between 10-130×10⁻⁶/℃, and tends to increase with increasing temperature. This means that when the temperature changes, its size will change, and it is necessary to consider the application in different temperature environments.

Magnetism: Under normal circumstances, 316 stainless steel coil is a non-magnetic material, but after certain processes such as cold working, it may produce a certain degree of magnetism. This feature needs to be noted in some application scenarios that are sensitive to magnetism.

Hardness: Its hardness is moderate, with a Brinell hardness (HB) of about 187 – 220. This hardness ensures that it has good formability during processing, and can also resist wear and deformation to a certain extent.

Strength: The tensile strength is high, generally greater than 520MPa, and the yield strength is greater than 205MPa, which enables it to withstand large external forces and perform well in application scenarios with stress such as stretching and bending.

Ductility: It has good ductility and can easily perform various processing operations, such as stretching into filaments and stamping into thin plates of various shapes to meet different product design requirements.

2. Chemical properties

Corrosion resistance: 316 stainless steel coil contains alloy elements such as chromium, nickel, and molybdenum. The addition of molybdenum significantly enhances its corrosion resistance, especially in environments containing chloride ions (such as seawater) and some strong acidic and alkaline environments, which can effectively resist corrosion. It can resist the erosion of a variety of chemical media, such as strong acid and strong alkali solutions in chemical production, and various food additive solutions in food processing.

Oxidation resistance: It has good oxidation resistance at both room temperature and high temperature. At high temperature, a stable passivation film can be formed on its surface to prevent oxygen from further oxidizing the internal metal. For example, in some high-temperature chemical reaction equipment or high-temperature food processing equipment, the stability of the material can be maintained.

Chemical stability: In a complex chemical environment, 316 stainless steel coils show high chemical stability. Whether in the production process of various chemical drugs in the pharmaceutical industry or in the long-term immersion in seawater in marine engineering, it will not easily react with the surrounding chemicals, thereby ensuring its service life in these harsh environments.

Application:

316 stainless steel coils are widely used. In the field of marine engineering, such as shipbuilding and seawater desalination equipment, it can resist strong seawater corrosion. In the chemical industry, it is used in the manufacture of reactors and pipelines for corrosive media such as strong acids and alkalis to ensure production safety and equipment life. In food and beverage processing, pipelines and storage tanks that come into contact with various foods and beverages are mostly made of it, which is hygienic and corrosion-resistant. In terms of medical equipment, some surgical instruments and equipment shells are selected for their biocompatibility and corrosion resistance. In high-end projects of architectural decoration, its beauty and durability are also very popular, and it is used for curtain walls, railings, etc.