Stainless Steel 304L (UNS S30403 / EN 1.4307) is a low-carbon austenitic stainless steel. It typically contains around 18-20% chromium and 8-10% nickel, with a very low carbon content (about 0.03% or less) to minimize the risk of sensitization during welding. Other elements include manganese (up to about 2%), silicon (around 1%), and low levels of phosphorus and sulfur. In terms of mechanical properties, it has an approximate yield strength of around 170 MPa (0.2% offset), a tensile strength of about 485 MPa, and an elongation of roughly 35-40%. It also boasts good hardness, with a Rockwell B hardness of about 90 when in an annealed state. ([Om Steel][1])
| Specifications | : | ASTM A182 ASME SA 182 |
| Tube Size | : | 1/16”OD to 2”OD, 2mm OD to 50mm OD |
| Thread | : | NPT, BSP, BSPT, UNF, ISO, SAE etc. |
| Pressure Rating | : | 6000PSI for Stainless Steel, 300/1000/3000PSI for Brass |
Stainless Steel 304L Pipe Fittings are made from a low-carbon version of 304 stainless steel, which includes chromium (18-20%), nickel (8-12%), and a minimal carbon content (0.03% max). This unique composition boosts their corrosion resistance and weldability, making them perfect for environments that encounter harsh chemicals. They boast impressive mechanical properties, with a tensile strength of 485 MPa and a yield strength of 170 MPa. These fittings are ductile, versatile, and resistant to scaling at high temperatures, ensuring they perform reliably in a variety of applications that demand robust and long-lasting solutions.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304L | 0.035 max | 2 max | 1.0 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 13 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
In Istanbul, one of the notable manufacturers/suppliers is **Kalikund Steel & Engg Co.** They produce SS 304L pipe fittings, including buttweld fittings like tees, elbows, reducers, caps, stub ends, and nipples, all crafted from high-quality raw materials and advanced machinery. ([kalikundsteel.com][2]) Another key player is **Sachiya Steel International**, which exports SS 304L pipe fitting elbows from Turkey, including Istanbul, adhering to the ANSI B16.9 standard. ([sachiyasteel.com][3])
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 304L Pipe Fittings from Ferdi Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
| Nominal Pipe Size | All Fittings | All Fittings | All Fittings | Elbows/ Tees | 180° Return Bends | 180° Return Bends | 180 Deg Return Bends | Reducers | Caps |
|---|---|---|---|---|---|---|---|---|---|
| NPS | O.D. at Bevel (1), (2) | I.D. at End (1), (3), (4) | Wall Thickness (3) | Centre-to-End Dimension A,B,C,M | Centre-to-Centre O | Back-to-Face K | Alignment of Ends U | Overall Length H | Overall Length E |
| ½ to 2½ | 0.06 -0.03 | 0.03 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 3 to 3 ½ | 0.06 | 0.06 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 4 | 0.06 | 0.06 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 5 to 8 | 0.09 -0.06 | 0.06 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.25 |
| 10 to 18 | 0.16 -0.12 | 0.12 | Not less than 87.5% of nominal thickness | 0.09 | 0.38 | 0.25 | 0.06 | 0.09 | 0.25 |
| 20 to 24 | 0.25 -0.19 | 0.19 | Not less than 87.5% of nominal thickness | 0.09 | 0.38 | 0.25 | 0.06 | 0.09 | 0.25 |
| 26 to 30 | 0.25 -0.19 | 0.19 | Not less than 87.5% of nominal thickness | 0.12 | … | … | … | 0.19 | 0.38 |
| 32 to 48 | 0.25 -0.19 | 0.19 | Not less than 87.5% of nominal thickness | 0.19 | … | … | … | 0.19 | 0.38 |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 304L | S30403 | 304S11 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304L |
The 304L fittings are particularly valued for their corrosion resistance and weldability. You’ll often find them in applications like food and beverage processing, chemical and pharmaceutical plants, architectural components, and equipment that requires extensive welding. Thanks to its resistance to carbide precipitation, 304L is a go-to choice for welded structures, storage tanks, piping systems, and heat exchangers. It’s also suitable for marine and outdoor applications, as well as situations where hygiene and ease of cleaning are priorities. ([dsstainlesssteel.com][4])
Yes, custom sizes are available for Stainless Steel 304L Pipe Fittings to meet specific requirements. We offer tailored solutions to ensure precise fit and performance for various applications. For more information, please contact us at sales@ferdifittings.com.
Stainless Steel 304L Pipe Fittings find extensive use in sectors like chemical processing, food and beverage, pharmaceuticals, and marine engineering. Their exceptional corrosion resistance makes them perfect for handling acidic and chloride-rich environments. These fittings are commonly used in piping systems for transporting chemicals, potable water, and gases. They also excel in high-temperature applications, such as boilers and heat exchangers. Thanks to their low-carbon content, they offer excellent weldability, ensuring seamless connections. With their remarkable durability, Stainless Steel 304L Pipe Fittings are the go-to choice for critical applications that require reliability and longevity.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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