Application and Advantages of Stainless Steel Pipe Fittings in High-Corrosion Industrial Scenarios

Legines stainless steel pipe fittings use 316 stainless steel as the main material, and provide 304 stainless steel as an optional configuration. Among them, 316 stainless steel has stronger resistance to chloride ion corrosion and chemical stability because it contains molybdenum, and is particularly suitable for use in extreme working environments such as oceans, high humidity, and high corrosion.
Excellent corrosion resistance: 316 stainless steel has excellent resistance to pitting and crevice corrosion because it contains 2% to 3% molybdenum, and is particularly suitable for chloride environments such as seawater, detergents, and industrial brine. Compared with 304 stainless steel, it is more stable and reliable in marine equipment, chemical plants, and food and pharmaceutical equipment that are frequently disinfected and cleaned.
Stable mechanical properties and ductility: 316 stainless steel has both high strength and excellent ductility, and excellent processing performance. It is suitable for high-pressure pipe connectors, precision fluid control components, and equipment structures that need to be welded or formed. This structural stability makes it more safe and adaptable in a variety of industrial scenarios.
Wider temperature adaptability: 316 stainless steel can work stably in a wide temperature range of -196℃ to +800℃, suitable for deep cold environment, high temperature steam and hot water system, and heat exchange equipment with frequent hot and cold alternation. It can still maintain good physical properties and structural integrity under extreme temperatures.
Low magnetic interference: As a typical austenitic stainless steel, 316 material has extremely low magnetism. This feature makes it particularly suitable for occasions sensitive to magnetic fields, such as high-precision instruments, medical equipment, and near electronic control components to avoid equipment errors or failures caused by magnetic interference.
Longer service life and reduced maintenance costs: With excellent corrosion resistance and fatigue resistance, 316 stainless steel pipe fittings and components can achieve longer service life under various working conditions, reducing replacement frequency and maintenance costs. Its surface is not easy to rust, and it does not require frequent protective treatment on a daily basis. It is a high-reliability material choice with both economy and performance.
S3325 is a stainless steel hexagonal joint used to connect two threaded pipe fittings or extend the length of the pipeline. Its design adopts a middle hexagonal structure, which is convenient for locking with a wrench, and the installation is simple and efficient. The connector is equipped with NPT standard external threads, which is highly compatible with most industrial systems.
This product is particularly suitable for a variety of application scenarios such as lubricating oil systems, refrigeration equipment, precision instruments and hydraulic pipelines. At the same time, Legines can provide customized versions adapted to fuel, liquefied petroleum gas (LP) and natural gas pipelines according to customer needs. The S3325 connector adopts a forged structure process, has excellent strength and precision, and can maintain a stable connection under high vibration and high-intensity conditions. It has a regular shape, standard size, and strong adaptability. It is a high-quality connector widely used in industrial equipment systems.
The S3326 tight connector is a short tube type fitting with NPT external threads on both ends, designed for high-sealing connections in extremely short distances. Unlike ordinary straight threads, NPT tapered threads can form close contact during tightening, thereby effectively preventing media leakage and improving system sealing and stability.
This model has a wide operating temperature range and can operate stably between -53°C and 121°C (-65°F to 250°F), suitable for hot and cold media fluid systems. The S3326 is small in size and compact in structure, especially suitable for fast installation and compact layout in pipeline systems with limited space. Similar to the S3325, this product is also widely used in lubrication systems, hydraulic devices, refrigeration equipment and instrumentation industries, and can be equipped with gas-specific specifications to meet the needs of multiple industries.
Its excellent temperature resistance and pressure resistance make it an indispensable and important connection element in various industrial pressure control systems.

Widely used in industries, taking into account versatility and professionalism
Legines stainless steel pipe fittings are widely used in the following industries due to their stable materials, reasonable structure, safe connection and high adaptability:
Oil and gas industry: connect fuel and gas pipelines to meet high-pressure corrosion resistance requirements.
Chemical and pharmaceutical industries: suitable for pipelines for highly corrosive liquids to ensure reliable sealing.
Food and beverage processing: stainless steel materials meet hygiene standards and do not release harmful substances.
HVAC refrigeration system: resistant to low temperatures, suitable for a variety of refrigerant environments.
Shipbuilding and marine engineering: strong resistance to salt spray corrosion, adaptable to complex marine climates.
Automation and precision instruments and equipment: stable materials, low magnetic interference, ensuring stable signal transmission.