Product details table:

Physical and chemical properties:

Physical properties

Appearance:

It usually presents a silvery white metallic color, with a smooth surface and high gloss. Different surface effects can be obtained through different surface treatment processes, such as mirror polishing, brushing, etc. 316L stainless steel plates are widely used in applications where aesthetic appeal and corrosion resistance are highly valued.

Density:

The density is generally about 7.98g/cm³. For example, the density of 316L stainless steel plate is slightly higher than that of ordinary carbon steel, making it suitable for demanding structural applications.

Melting point:

The melting point is relatively high, generally around 1398-1454℃. For example, the melting point of 316L stainless steel is about 1400-1450℃, which makes it exhibit good stability in high-temperature environments.

Coefficient of thermal expansion:

The coefficient of thermal expansion is relatively small. In the range of room temperature to 100℃, the coefficient of thermal expansion of 316L stainless steel is about 17.2×10⁻⁶/℃. This feature enables it to maintain good dimensional stability in environments with significant temperature changes.

Thermal conductivity:

The thermal conductivity is poor, and its thermal conductivity coefficient is about 16 – 27W/(m・K), which is much lower than that of copper, aluminum, and other metals, so it has certain thermal insulation performance.

Electrical conductivity:

It has certain electrical conductivity, but the conductivity is relatively low. The conductivity of 316L stainless steel is about 1.4×10⁶ S/m, which is only about 4% of the conductivity of copper.

Chemical properties

Corrosion resistance:

This is one of the most important chemical properties of 316L stainless steel plates. Because a dense passivation film can be formed on its surface, this passivation film prevents oxygen, water, etc., from contacting the metal matrix, thereby effectively preventing corrosion. For example, 316L stainless steel has excellent corrosion resistance in environments such as atmosphere, water, weak acids, and alkalis; it also contains molybdenum, making it highly resistant to chloride ion corrosion. It is often used in marine environments or chemical environments exposed to chloride ions.

Antioxidation:

316L stainless steel plates have good oxidation resistance at both room temperature and higher temperatures. For example, they can withstand high temperatures in demanding environments without being easily oxidized and are suitable for use in high-temperature furnace components and other applications.

Chemical stability:

In general chemical media, 316L stainless steel plates exhibit high chemical stability and are not prone to chemical reactions with common chemicals. However, in some specific strong corrosive media, such as concentrated nitric acid, hydrofluoric acid, etc., the corrosion resistance of 316L stainless steel may be affected.

Passivation:

After the 316L stainless steel plate is exposed to air or undergoes passivation treatment, a passivation film forms on the surface. This passivation film enhances the material’s corrosion resistance and oxidation resistance. Passivation treatment typically involves immersing the stainless steel plate in a solution containing an oxidant, such as nitric acid or potassium dichromate, to promote the formation and repair of the passivation film.

Application:

316L stainless steel plates are widely used in many fields due to their excellent corrosion resistance, high strength, and good processing performance. In the medical field, they are used to manufacture surgical instruments, implants, etc., ensuring sterility and biocompatibility. In the building and decoration industry, they are often used to create railings, handrails, and artistic sculptures, combining beauty with durability. In mechanical manufacturing, they are processed into key components such as structural parts and gears to ensure stable operation of equipment. In the food processing industry, they are used to manufacture food machinery and containers to meet strict hygiene standards. Additionally, in fields such as chemical equipment, electronic appliances, etc., 316L stainless steel plates are indispensable. They are used to manufacture reactors, valves, electronic equipment housings, etc., and can adapt well to complex working environments.