- ZHUHAI JIALI HARDWARE CO.,LTD.
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2205 Duplex Stainless Steel Open End Spring Washer GB93 Washer Meson Corrosion Resistant and Acid Resistant M6M8M10-M24
- Product description：In the industrial fastening system, washers, as the "supporting guardians" of bolts and nuts, directly affect the stability and durability of the connected structure.
With its unique material properties and standardized design, the 2205 duplex stainless steel open coil spring washer GB93 has become an ideal choice for harsh environments. The 2205 duplex stainless steel combines the advantages of austenitic and ferritic stainless steels, with corrosion resistance far superior to that of ordinary 304 stainless steel, as well as better tensile strength and fatigue resistance. The open structure compliant with the GB93 standard can continuously provide anti-loosening preload through elastic deformation, effectively offsetting the risk of bolt loosening caused by vibration and impact. Its application scenarios cover multiple fields with extremely high requirements for fastening reliability.
Petrochemical and Offshore Oil & Gas Industry
Petrochemical plants and offshore oil & gas platforms are core application scenarios for the 2205 duplex stainless steel open coil spring washer GB93. At crude oil refining towers, oil pipeline connection nodes, and equipment supports of offshore drilling platforms, the washers need to be in long-term contact with highly corrosive media such as crude oil, seawater, and hydrogen sulfide, while withstanding high-frequency vibrations generated by equipment operation. The pitting corrosion resistance and stress corrosion resistance of 2205 duplex stainless steel can resist the erosion of seawater salt spray and chemical media, preventing the washers from rusting and failing. The open structure conforming to the GB93 standard can generate continuous elastic tension after the bolts are tightened, preventing bolt loosening caused by vibration, ensuring the sealing performance of oil pipelines, and avoiding safety accidents caused by crude oil leakage. Especially in deep-sea oil & gas extraction equipment, this washer can be used with high-strength bolts to withstand the high-pressure environment of deep seas and ensure the long-term stability of connections between underwater instruments and pipelines.
New Energy (Wind Power, Photovoltaic) Industry
The rapid development of the new energy industry has put forward higher requirements for the weather resistance and anti-loosening performance of fastening components, and the 2205 duplex stainless steel open coil spring washer GB93 has shown significant advantages in this regard. In onshore and offshore wind turbines, the connection between the nacelle and the tower, and the fastening nodes at the root of the blades need to withstand the dual effects of strong winds, temperature differences, and long-term vibrations. The 2205 duplex stainless steel can resist the high-humidity and salt spray environment (for offshore wind power) where wind farms are located, preventing the washers from losing elasticity due to rust. The elastic reset capability of the GB93 open structure can continuously compensate for the thermal expansion and contraction of bolts caused by temperature changes, preventing loosening of connection nodes and ensuring the stable operation of wind turbines. In photovoltaic power stations, this washer can be used for the connection between photovoltaic brackets and ground foundations, withstanding harsh weather conditions such as outdoor exposure, rain, and snow, ensuring the long-term stability of photovoltaic panel arrays and avoiding the impact of bracket loosening on power generation efficiency.
Food, Pharmaceutical and Medical Device Industries
The food, pharmaceutical, and medical device industries have strict requirements for the material safety and cleanability of fastening components, and the characteristics of the 2205 duplex stainless steel open coil spring washer GB93 are perfectly suitable for these needs. In food processing equipment (such as dairy production lines and juice filling machines), the washers need to come into contact with acid-alkali cleaning fluids and food raw materials, and undergo regular high-temperature sterilization. The 2205 duplex stainless steel does not contain harmful substances such as lead and cadmium, meets food-contact material standards, and has excellent acid and alkali corrosion resistance, which can prevent food contamination caused by rust during cleaning. The simple design of the GB93 open structure has no hygiene dead corners, facilitating equipment cleaning and disinfection and preventing bacterial growth due to material residues. In the medical device field (such as surgical instruments and diagnostic equipment), this washer can be used for the connection of precision components. Its high strength and fatigue resistance can ensure that the instruments do not loosen during long-term use, and its resistance to corrosion by disinfectants can meet the frequent disinfection needs of medical devices, ensuring safety in use.
In addition, the 2205 duplex stainless steel open coil spring washer GB93 also plays an important role in high-end water treatment equipment (such as seawater desalination plants and industrial wastewater treatment systems) and heavy machinery (such as mining machinery and papermaking equipment). For the former, it can resist corrosion from high-salt and high-pollutant water quality, ensuring the sealing of pipeline connections in water treatment equipment; for the latter, it can withstand the impact and vibration of heavy machinery through its strong elasticity and high strength, preventing loosening of key components and extending the service life of the equipment.
