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Njabulo Stainless, a top-notch manufacturer and supplier located in Cape Town, South Africa, focuses on crafting high-quality **Stainless Steel Couplings** that deliver outstanding performance in piping and fluid systems. The company prides itself on precision engineering, reliability, and durability, providing couplings that guarantee secure and leak-proof connections for a variety of industrial applications. With a commitment to stringent quality control, Njabulo Stainless offers products that boast remarkable resistance to corrosion, pressure, and temperature fluctuations. Their stainless steel couplings come in various sizes and configurations, catering to the needs of industries like chemical processing, oil and gas, food, and marine engineering.
**Stainless Steel Couplings** are primarily made up of iron, chromium (16–20%), and nickel (8–14%), along with small amounts of molybdenum, manganese, silicon, and carbon to boost strength and corrosion resistance. The chromium content creates a passive oxide layer, which provides excellent protection against rust and oxidation. In terms of mechanics, these couplings have a tensile strength ranging from 515–750 MPa, along with good ductility and high toughness. They maintain their structural integrity even under high pressure and temperature, offering superior weldability and a long service life in both standard and challenging operating conditions.
| 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 Njabulo 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.
**Stainless Steel Couplings** are widely utilized in industries that demand durable and leak-proof connections for fluid, gas, or steam transfer systems. They are perfect for chemical plants, oil refineries, food and beverage processing facilities, marine environments, and water treatment plants. Their corrosion resistance and strength make them ideal for both high-pressure and corrosive applications. Additionally, these couplings find use in plumbing, hydraulic systems, and heat exchangers, ensuring reliable performance, safety, and efficiency in demanding environments while minimizing maintenance and downtime.
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