Special Recommendation
S32001 Duplex Steel
A groundbreaking product researched, developed, and mass-produced by Qingshan Group Research Institute. It fills the gap in high-strength, high-corrosion-resistant stainless steel products, has American and national standard numbers (unified digital code: S22152), and can be customized to European standards. The product has standards, can be promoted with confidence, and can undertake more projects. National standard documents clearly indicate that within a certain range, S32001 can replace 304 and 304L.
Component Characteristics:Low C, high Cr, less Ni, high PREN value, corrosion resistance is the same level as 304.
Performance Characteristics:High strength, high corrosion resistance, easy to machine, easy to weld, especially excellent stress corrosion resistance, has great advantages in transportation and load-bearing structures.
Product Characteristics:Low alloy cost, combined with lightweight design, has ultra-high cost performance.
Duplex Steel Performance
S32001 duplex steel has good yield strength and tensile strength. Products with the same thickness can be thinned, and products with the same volume can be lightweighted. Using S32001 can reduce weight by 2%, save costs, and has good wear resistance and durability.
Pitting/Crevice Corrosion Resistance
S32001 pitting and crevice corrosion resistance is at the same level as 304. The higher the critical corrosion temperature, the higher the starting point of corrosion. The lower the corrosion rate, the more difficult it is to corrode. The higher the pitting potential, the better the corrosion resistance.
Stress Corrosion Resistance
In equipment that contacts trace amounts of chlorides and hydrogen sulfide, 304/316L will undergo stress corrosion, and duplex steel is a better choice.
Acid Corrosion Resistance
S32001 is more resistant to sulfuric acid corrosion than 304 and 316L, and more resistant to nitric acid corrosion than 304.
Alkali Corrosion Resistance
S32001 is more resistant to alkaline corrosion than 304 and 316L. It can be used in soda ash equipment, pipelines, instruments, and valves.
Chloride Ion Corrosion Resistance
S32001 has slightly better chloride ion corrosion resistance than 304. Suitable for seawater, tap water, and other environments.
Application of duplex steel
A groundbreaking product researched, developed, and mass-produced by Qingshan Group Research Institute. It fills the gap in high-strength, high-corrosion-resistant stainless steel products, has American and national standard numbers (unified digital code: S22152), and can be customized to European standards. The product has standards, can be promoted with confidence, and can undertake more projects. National standard documents clearly indicate that within a certain range, S32001 can replace 304 and 304L.
Transportation
As an important structural and functional material in modern industry, stainless steel is widely used in the construction of transportation infrastructure, such as highway bridges, railway track components, and subway stations. Advanced transportation equipment such as trains and ships also extensively use stainless steel materials in the manufacturing of structures, propulsion systems, and other key components. Due to its superior durability and corrosion resistance, stainless steel has become the preferred material for structures that are exposed to the natural environment for extended periods. These facilities are subject to long-term exposure to wind and rain, and the use of stainless steel materials can effectively extend their service life and reduce maintenance costs.
Water Conservancy Pipeline
Substances produced in water treatment easily corrode metal materials and pollute the environment. Stainless steel has high corrosion resistance, a smooth and easy-to-clean surface, and can be used for a long time in harsh environments. It has been widely used in sewage engineering and water purification engineering. It is often used in water treatment equipment and containers, pipeline systems, water pool fences, and factory area fences.
Building Applications
The yield strength of nickel-saving S32001 duplex steel is above 450 MPa, and its stress corrosion resistance is far superior to that of 304 stainless steel. It is suitable for application in the field of prefabricated building structures, replacing high-strength coated carbon steel of the same strength level, which can significantly improve the life of structural components; replacing stainless steel of the same corrosion resistance level can significantly improve strength, achieve lightweighting of total material use, reduce comprehensive use costs, and has extremely high cost performance.
Regular maintenance
S32001 Duplex stainless steel is an ideal choice for mechanical equipment: compared with austenitic stainless steel, it has higher strength and can withstand greater loads; excellent corrosion resistance can cope with chloride environments; good toughness adapts to impact vibration conditions. Its high-strength characteristics support lightweight design, stable welding performance, and low maintenance costs. Its comprehensive performance advantages make it particularly suitable for key equipment with high loads, strong corrosion, or long-term use, such as transmission components and pressure vessels.
Kitchen and bathroom furniture
Stainless steel was first commercially produced and used in the early 20th century. Due to its excellent corrosion resistance and ease of processing, it was quickly applied to the kitchen and bathroom industry. The application of stainless steel in kitchen and bathroom furniture has many advantages, including durability, easy cleaning and maintenance, moisture and fire prevention, environmental protection and health without formaldehyde, integrated design, high temperature resistance, strong impact resistance,不易变色 and recyclable value. These advantages make stainless steel an ideal material for kitchen and bathroom furniture, meeting the dual needs of functionality and aesthetics of modern families.
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