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Harsh Metalloys, located in Mumbai, India, stands out as a top manufacturer and supplier of high-quality Stainless Steel Couplings. These couplings are expertly crafted to connect pipes securely and efficiently across a range of industrial applications. We use only the finest stainless steel grades, including 304, 316, 316L, and 904L, ensuring our products boast exceptional corrosion resistance, durability, and strength. Available in threaded, socket weld, and butt weld types, our couplings meet international standards like ASTM A182 and ASME B16.11. We proudly serve various industries, such as oil & gas, petrochemical, water treatment, food processing, and pharmaceuticals, delivering reliable piping connection solutions.
Stainless Steel Couplings are crafted from austenitic stainless steels that contain 18–25% Chromium and 8–22% Nickel, with Molybdenum added in grades like 316 and 904L to boost corrosion resistance. These couplings typically showcase tensile strengths between 485–620 MPa and yield strengths ranging from 170–310 MPa. The stainless steel composition guarantees excellent resistance to oxidation, scaling, and chemical attacks, making these couplings ideal for tough environments. They also offer great weldability and mechanical toughness, ensuring leak-proof and durable pipe connections even in high-pressure and high-temperature systems.
| 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 Harsh Metalloys, 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.
Stainless Steel Couplings are widely used to join pipes, tubes, and fittings in various industries requiring strong, corrosion-resistant connections. They are essential in oil & gas pipelines, petrochemical plants, water treatment systems, and food and beverage processing lines. Couplings provide flexibility for assembly and maintenance in confined spaces and are ideal for high-pressure, high-temperature applications. They are also employed in pharmaceutical and chemical industries where hygiene and chemical resistance are critical. Stainless steel couplings ensure secure, leak-free joints, contributing to the safety, efficiency, and longevity of piping systems in demanding environments.
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