Product details:

Physical and chemical properties：

physical properties

Density: about 8.03g/cm ³.

Elastic modulus: At room temperature, the longitudinal elastic modulus of austenitic 316 stainless steel is 193 kN/mm ². With the increase of temperature, the longitudinal elastic modulus decreases, the Poisson’s ratio increases, and the transverse elastic modulus decreases significantly.

Thermal conductivity: Below 600 ° C, the thermal conductivity is basically in the range of 10-30W/(m · ° C), and it increases as the temperature increases.

Specific heat capacity: With the change of temperature, the specific heat capacity will change, and the specific heat capacity will change significantly when the metal structure undergoes phase transformation or precipitation during the temperature change.

Thermal expansion: The shrinkage rate below 80K is slightly different from 273K, and the nickel content has a certain impact on the shrinkage rate.

Resistivity: At 0-900 ° C, the specific resistance is basically 70 × 10 -130 × 10 Ω · m, and it increases with temperature.

Linear expansion coefficient: In the range of 100-900 ° C, the linear expansion coefficient is basically 10-130 × 10-130 ° C, which increases with temperature. Magnetic permeability: Austenitic 316 stainless steel has a very small magnetic permeability and is a non-magnetic material, but under certain processing conditions, some grades may produce magnetism.

chemical properties

Corrosion resistance: because it contains chromium, nickel, molybdenum and other elements, it has excellent corrosion resistance, can resist the corrosion of acid, alkali, salt and other chemically aggressive media, and performs well in seawater, chemical, food and other environments. It can be used under harsh conditions and has excellent resistance to grain boundary corrosion after welding or stress relief.

Oxidation resistance: It has good oxidation resistance in both normal and high temperature environments, and a stable passivation film can be formed on the surface to prevent further oxidation.

High temperature stability: Good high temperature resistance, can maintain stability in the temperature range of -250 ° C to 500 ° C, its high temperature strength is better than 304 stainless steel, suitable for high temperature environments in chemical, petroleum and other industrial fields.

Application:

316 stainless steel pipes are widely used. In the food and beverage industry, pipes used to transport various beverages and food raw materials ensure product quality and safety due to their corrosion resistance. In the chemical industry, it is an ideal choice for reaction kettle connection pipes and acid-base conveyor pipes, which can resist strong corrosive chemicals. In marine engineering, such as ship pipeline systems and seawater desalination device pipelines, it can resist seawater erosion and harsh marine environments. In medical treatment, some surgical instruments and medical apparatus shells are made to meet biocompatibility and disinfection requirements. In architectural decoration, it is used for high-end building curtain wall frames, handrails, etc., which are both beautiful and durable.