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Lecong Stainless, a top-notch manufacturer and supplier based in Da Nang, Vietnam, specializes in high-quality Stainless Steel Couplings that are built to create strong, leak-proof, and long-lasting piping connections. Crafted from premium materials like 304, 316, and 321 stainless steel, these couplings boast impressive resistance to corrosion, high pressure, and extreme temperatures. With a commitment to precision engineering and international standards, Lecong Stainless guarantees that each coupling is reliable and designed for a long service life. Their sturdy design and smooth finish make them the go-to choice for industries such as oil and gas, chemical processing, power generation, food, pharmaceuticals, and water treatment, where efficiency and safety are paramount.
Stainless Steel Couplings are mainly made up of iron, chromium, and nickel, with the potential addition of molybdenum or titanium to boost strength and corrosion resistance. These elements contribute to their exceptional tensile and yield strength, toughness, and ability to endure high pressure and temperature fluctuations. Mechanically, they are known for their durability, wear resistance, and long-lasting performance in challenging environments. Their chemical stability, paired with mechanical strength, makes them perfect for both standard and critical industrial applications, ensuring secure and dependable piping connections.
| Grades | 201, 202, 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L |
| Type | Seamless / Welded / Fabricated |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Size | ½”NB to 48″NB in |
| Schedule | Sch 10s, 40s, 80s, 160s, XXS. |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| SS | 304 | 304N | 304LN |
|---|---|---|---|
| Ni | 8 – 11 | 8 – 11 | 8 – 11 |
| Fe | Balance | ||
| Cr | 18 – 20 | 18 – 20 | 18 – 20 |
| C | 0.08 max | 0.08 max | 0.035 max |
| Si | 0.75 max | 0.75 max | 0.75 max |
| Mn | 2 max | 2 max | 2 max |
| P | 0.040 max | 0.040 max | 0.040 max |
| S | 0.030 max | 0.030 max | 0.030 max |
| N | 0.10 – 0.16 | 0.10 – 0.16 | |
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
Contact us to get a quick quote for your requirement.
At Lecong Stainless, quality is supreme. The test is proved in cleaning up the whole quality test on the Stainless Steel Couplings before their dispatch. The tests include all – Hardness Test, Chemical Analysis (using Spectro Analysis), Positive Material Inspection (PMI) Testing, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, and Intergranular Corrosion (IGC) Test. We make sure that strong and durable couplings are provided to our customers in order to give them the best products for their applications.
Yes, Stainless Steel Couplings can be used for underground applications due to their corrosion resistance, strength, and durability. However, proper installation and maintenance are essential for optimal performance in harsh conditions.
To select the right Stainless Steel Coupling, consider factors like the required size, pressure rating, material grade, environment (corrosive or extreme temperatures), and compatibility with the connected pipes or fittings.
Yes, Stainless Steel Couplings can be used for structural applications due to their strength, corrosion resistance, and durability. They are ideal for connecting structural elements in environments exposed to harsh conditions.
Yes, Stainless Steel Couplings can be welded using appropriate techniques like TIG or MIG welding. It’s important to choose the right filler material and control heat to maintain material integrity.
These couplings are widely utilized to connect pipes and tubes across various industries where durability and resistance to harsh conditions are crucial. In oil and gas facilities, they create secure joints for high-pressure fluid transfer. The chemical and petrochemical sectors depend on them for managing corrosive substances, while the food and pharmaceutical industries appreciate their hygienic features and ease of cleaning. They also find applications in power plants, marine settings, and water treatment facilities. Their versatility, corrosion resistance, and leak-proof design make them a favored choice for essential piping systems across multiple industries.
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