Teerasil Fittings and Plates, a well-respected manufacturer and supplier based in Bangkok, Thailand, specializes in high-quality Stainless Steel 316 / 316L Buttweld Fittings that are built to last. These fittings are known for their impressive durability, strength, and exceptional resistance to corrosion. With their ability to withstand chlorides, chemicals, and harsh marine environments, they are perfect for critical piping systems across various industries. SS 316 offers enhanced mechanical strength, while SS 316L, with its lower carbon content, provides better weldability and reduces the risk of carbide precipitation. Manufactured to meet international standards, our buttweld fittings guarantee leak-proof joints, precise dimensions, and a long service life, making them ideal for sectors like oil & gas, petrochemical, food, and pharmaceuticals.
| 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, 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, which greatly enhances their resistance to pitting and crevice corrosion. SS 316 includes up to 0.08% carbon for added strength, while SS 316L has a lower carbon content (≤0.03%) to reduce sensitization during welding. Both grades offer a tensile strength of around 515 MPa, a yield strength of 205 MPa, and excellent elongation. They remain stable and tough in both high-temperature and cryogenic conditions, ensuring long-lasting durability and outstanding performance in challenging environments.
| 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 |
Teerasil Fittings is a leading supplier of Stainless Steel 316 Buttweld Fittings in Bangkok, Thailand. 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 Teerasil 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 Teerasil Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@teerasilfittings.com.
Stainless Steel 316 / 316L Buttweld Fittings are a go-to choice in industries that demand top-notch corrosion resistance and dependable piping solutions. You’ll find them in action across oil and gas pipelines, chemical processing plants, refineries, and power generation facilities. The food and pharmaceutical industries also count on these fittings for their hygienic qualities and durability in sanitary applications. Plus, marine and water treatment sectors trust them for pipelines that face chlorides and other corrosive fluids. Thanks to their excellent weldability, resistance to stress corrosion cracking, and ability to withstand high pressure and temperature, SS 316 / 316L Buttweld Fittings are truly essential for critical industrial and commercial piping systems.
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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