Ferdi Fittings, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of high-quality Stainless Steel 316/316L Buttweld Fittings. Known for their precision engineering and durability, Ferdi Fittings caters to industries around the globe with a diverse selection of buttweld fittings that meet strict international standards. Their products are designed for seamless integration into piping systems, providing excellent corrosion resistance, impressive strength, and dependable performance. With a strong focus on quality, innovation, and customer satisfaction, Ferdi Fittings has become a reliable partner for industries that need robust, long-lasting stainless steel solutions for critical applications.
| Specifications | ASTM A403 / ASME SA403 |
|---|---|
| Size | 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated) |
| Standards | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Thickness | 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75 |
| Type | Seamless / Welded / Fabricated |
Stainless Steel 316/316L Buttweld Fittings are made up of iron, along with 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, with 316L featuring a lower carbon content for better weldability. These alloys are known for their outstanding resistance to corrosion, especially against chlorides and acidic environments, making them perfect for tough conditions. Mechanically, they boast high tensile strength, good toughness, and durability in both high and low temperatures. Their excellent fatigue resistance and dimensional stability under stress ensure they perform reliably in demanding piping systems, making them ideal for industrial, chemical, and marine applications.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 316 | min. | – | – | – | – | 16.0 | 2.0-3.0 | 10.0 | – | |
| max. | 0.035 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0 | 14.0 | – | ||
| 316L | min. | – | – | – | – | – | 16.0 | 2.0-3.0 | 10.0 | – |
| max. | 0.035 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0 | 14.0 | – | ||
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 316 | 515 | 205 | 40 | 95 | 217 |
| 316L | 485 | 170 | 40 | 95 | 217 |
Ferdi Fittings is a leading supplier of Stainless Steel 316 Buttweld Fittings in Istanbul, Turkey. We offer an extensive range of Stainless Steel 316L Buttweld Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 316 Fittings | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | – | Z7CND17‐11‐02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
| SS 316L Fittings | 1.4404 / 1.4435 | S31603 | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17‐11‐02 / Z3CND18‐14‐03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
Stainless Steel 316 / 316L Buttweld 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.
Stainless steel 316/316L Buttweld Fittings provide excellent corrosion resistance, especially in harsh environments such as the marine and chemical industry, and the presence of molybdenum provides superior strength, durability and superior heat resistance against, making it ideal for important projects. The lower carbon content of 316L reduces the risk of sensitivity and intergranular corrosion, and enhances weldability. These materials are highly resistant to pitting and cravis corrosion, providing long service life. In addition, it is inert, easy to maintain, and provides flexible and leak-proof connections to plumbing systems.
| Nominal Pipe Size | Outside Diameter | Caps | Straight Tees | Straight Crosses | Stub Ends | |||
|---|---|---|---|---|---|---|---|---|
| (inches) | (mm) | (inches) | Length (inches) | Center to End (inches) | Center to End (inches) | Lap Diameter (inches) | Long Length (inches) | Short Length (inches) |
| 1/2 | 21.3 | 0.840 | 1 | 1 | – | 1 3/8 | 3 | 2 |
| 3/4 | 26.7 | 1.050 | 1 | 1 1/8 | – | 1 11/16 | 3 | 2 |
| 1 | 33.4 | 1.315 | 1 1/2 | 1 1/2 | 1 1/2 | 2 | 4 | 2 |
| 1 1/4 | 42.2 | 1.660 | 1 1/2 | 1 7/8 | 1 7/8 | 2 1/2 | 4 | 2 |
| 1 1/2 | 48.3 | 1.900 | 1 1/2 | 2 1/4 | 2 1/4 | 2 7/8 | 4 | 2 |
| 2 | 60.3 | 2.375 | 1 1/2 | 2 1/2 | 2 1/2 | 3 5/8 | 6 | 2 1/2 |
| 2 1/2 | 73.0 | 2.875 | 1 1/2 | 3 | 3 | 4 1/8 | 6 | 2 1/2 |
| 3 | 88.9 | 3.500 | 2 | 3 3/8 | 3 3/8 | 5 | 6 | 2 1/2 |
| 3 1/2 | 101.6 | 4.000 | 2 1/2 | 3 3/4 | 3 3/4 | 5 1/2 | 6 | 3 |
| 4 | 114.3 | 4.500 | 2 1/2 | 4 1/8 | 4 1/8 | 6 3/16 | 6 | 3 |
| 5 | 141.3 | 5.563 | 3 | 4 7/8 | 4 7/8 | 7 5/16 | 8 | 3 |
| 6 | 168.3 | 6.625 | 3 1/2 | 5 5/8 | 5 5/8 | 8 1/2 | 8 | 3 1/2 |
| 8 | 219.1 | 8.625 | 4 | 7 | 7 | 10 5/8 | 8 | 4 |
| 10 | 273.1 | 10.750 | 5 | 8 1/2 | 8 1/2 | 12 3/4 | 10 | 5 |
| 12 | 323.9 | 12.750 | 6 | 10 | 10 | 15 | 10 | 6 |
Yes, custom sizes for Stainless Steel 316 / 316L Buttweld Fittings are available at Ferdi Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@ferdifittings.com.
You’ll find Stainless Steel 316/316L Buttweld Fittings widely used in the chemical, petrochemical, pharmaceutical, and food processing industries, thanks to their remarkable corrosion resistance and strength. They’re perfect for piping systems that transport acids, alkalis, or saline solutions, as well as high-temperature fluids. Common uses include pipelines, heat exchangers, pressure vessels, and marine environments where exposure to seawater or corrosive substances is common. Additionally, these fittings are essential in power plants, water treatment systems, and offshore facilities, providing safe, leak-free connections that ensure the reliability and longevity of critical operations.
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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