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Stainless Steel Couplings play a crucial role in connecting two shafts or pipes securely, ensuring that power, torque, or fluid flows smoothly and efficiently. Renowned for their outstanding resistance to corrosion, heat, and wear, these couplings deliver reliable performance even in tough industrial settings. Crafted with precision, they help maintain alignment, minimize vibration, and shield connected machinery from stress and shock loads. You’ll find Stainless Steel Couplings in a variety of applications, including mechanical systems, pumps, compressors, pipelines, and rotating equipment, making them a dependable choice for industries that prioritize durability and consistent performance.
Typically made from a blend of iron, chromium, and nickel, Stainless Steel Couplings may also include elements like molybdenum, carbon, manganese, and silicon to boost their performance. The chromium content is key for providing exceptional resistance to corrosion and oxidation, while nickel enhances toughness and stability across different temperatures. These couplings boast impressive mechanical properties, such as high tensile strength, excellent fatigue resistance, and the capacity to handle significant torque. Their thermal stability and superior hardness ensure they keep their structural integrity under pressure, making them ideal for heavy-duty industrial applications.
| 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 % |
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At Amer 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.
Across various industries, Stainless Steel Couplings are favored for their strength, durability, and ability to withstand harsh conditions. In mechanical and manufacturing systems, they facilitate efficient power transmission between motors and machinery. In sectors like oil and gas, chemicals, and petrochemicals, they create secure connections for fluid handling and process equipment. Water treatment plants, HVAC systems, and food processing facilities depend on their hygienic and corrosion-resistant qualities, ensuring they meet the demands of diverse applications.







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