SUS329 stainless steel is a duplex stainless steel

SUS329 stainless steel is a duplex stainless steel


 

SUS329 stainless steel is a duplex stainless steel, also known as UNS S32900 or AISI 329 stainless steel. It is a material with good corrosion resistance and strength in high temperatures and corrosive environments. The following is comprehensive information about SUS329 stainless steel, including its basic data, introduction, performance and uses.

basic data:

- Chemical composition: SUS329 stainless steel is mainly composed of iron (Fe) and the following elements: chromium (Cr) content is 23-28%, nickel (Ni) content is 1.5-4.5%, molybdenum (Mo) content is 0.1-0.6%, The manganese (Mn) content is 1.0%, the silicon (Si) content is 1.0%, the phosphorus (P) content is 0.04%, and the sulfur (S) content is 0.03%.

Introduction:

- SUS329 stainless steel is a duplex stainless steel, consisting of two structural phases: ferrite and austenite. This balance of structural phases gives SUS329 stainless steel excellent strength and corrosion resistance.

- SUS329 stainless steel maintains good strength and corrosion resistance at high temperatures, and can withstand erosion from a variety of corrosive media, such as seawater, acidic and alkaline chemical media, and chloride media.

- SUS329 stainless steel also has high resistance to intergranular corrosion and can resist corrosion problems caused by precipitation phases generated during the welding process.

performance:

- Strength: SUS329 stainless steel has excellent strength and can still maintain good mechanical properties at high temperatures.

- Corrosion resistance: SUS329 stainless steel has high resistance to a variety of corrosive media and is widely used in marine environment, chemical industry, petroleum and other fields.

- Resistance to intergranular corrosion: SUS329 stainless steel can resist intergranular corrosion generated during the welding process, thereby ensuring the reliability of the structure.

use:

- Marine engineering: Due to the good corrosion resistance of SUS329 stainless steel in marine environments, it is widely used in ships, offshore platforms, seawater treatment equipment and other fields.

- Chemical industry: SUS329 stainless steel has good corrosion resistance to many chemical media, so it is widely used in chemical equipment, pipelines and storage tanks.

- Petroleum industry: SUS329 stainless steel has high strength and corrosion resistance and is suitable for oil mining, refining and natural gas processing.

- High temperature environment: Since SUS329 stainless steel has good heat resistance, it is used in high temperature environments, such as heat exchangers, gas turbines and other fields.

Summary: SUS329 stainless steel is a duplex stainless steel with good strength and corrosion resistance. It is widely used in marine engineering, chemical industry, petroleum industry and high temperature environment, becoming an important material choice.