Teerasil Fittings and Plates, Thailand-based in Bangkok, is a reputable manufacturer and supplier of **Stainless Steel 304L buttweld fittings**, which are famous for their high corrosion resistance and weldability. Stainless Steel 304L is a low-carbon version of the widely used 304 grade, which is manufactured to reduce carbide precipitation during welding, thus preventing intergranular corrosion. Teerasil provides a variety of 304L buttweld fittings—such as elbows, tees, reducers, and caps—produced in accordance with international specifications such as ASTM A403 and ASME B16.9 for consistent performance in chemical process, food and beverage, and pharmaceutical applications.
| 304 / 304L Pipe Fittings Specifications | ASTM A403/ ASME SA403 |
|---|---|
| 304 / 304L SS Pipe Fittings size | 304 / 304L Seamless Butt Weld Fittings : 1/2″ – 10″ 304 / 304L Welded Butt Weld Fittings : 1/2″ – 48″ |
| SS 304 / 304L Pipe Fittings Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 |
| Stainless Steel 304 / 304L Buttweld Fittings Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| 304 / 304L Buttweld Pipe FittingsType | DN15-DN1200 |
| ASTM A403 304 / 304L Buttweld Fitting Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM A403 Grade WP304 / 304L Pipe Fitting |
| Size Range | ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM A403 WP 304 / 304L Buttweld Fitting |
| ASTM A403 WP304 / 304L Buttweld Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
| 304 / 304L Stainless Steel Buttweld Pipe Fittings Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| SA 403 WP304 / 304L Pipe Fittings Origin & Mills | Japanese, Indian, USA, Korean, European, Ukraine, Russian |
| Specialized manufacturer of | SS UNS S30400, S30403 90º Elbows, 45º Elbows, Tees, Cross, Reducer, Pipe Cap, Stub End, Pipe Bend |
| We provide Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Stainless Steel 304L buttweld fittings have about 18–20% chromium and 8–12% nickel, with a maximum of 0.03% carbon. The fittings offer tensile strength of about 485 MPa and yield strength of about 170 MPa. It has low carbon content to improve weldability and corrosion resistance, particularly in welded applications under exposure to corrosive conditions. The formability, strength, and resistance to oxidation and other chemicals are also good in the alloy.
| Grade | C | Mn | Si | P | S | Cr | Ni |
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | 8 – 11 |
| SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | 8 – 13 |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 304 / 304L | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Teerasil Fittings is a leading supplier of Stainless Steel 304L Buttweld Fittings in Bangkok, Thailand. We offer an extensive range of Stainless Steel 304L 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 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
| SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | 3304S11 | 03Х18Н11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 |
Stainless Steel 304L 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 304L Buttweld Fittings offer many advantages, including excellent corrosion resistance, reduced risk of 304L sensitivity when carbon content is low, especially in air, water and chemical environments, making it ideal for welding applications. It has excellent capacity and excellent strength, allowing it to withstand high temperatures and pressures. These fittings are durable, require minimal maintenance, are versatile in a variety of industries such as food processing, pharmaceuticals and construction in addition to providing long lasting reliability and easy cleaning, ensuring hygiene in use a in the importance of.
| NOMINAL PIPE SIZE | ALL FITTINGS | ALL FITTINGS | 180 DEG RETURN BENDS | REDUCERS | ELBOWS AND TEES | 180 DEG RETURN BENDS | CAPS |
| NPS | ID at End (1), (3), (4) | OD at Bevel (1), (2) | Centre-to- Centre O | Overall Length H | Centre -to- End Dimension A, B, C, M | Alignment of Ends U | Overall Length E |
| ½ to 2½ | 0.003 | 0.006 -0.003 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 3 to 3 ½ | 0.006 | 0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 4 | 0.006 | 0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 5 to 8 | 0.006 | 0.009 -0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.025 |
| 10 to 18 | 0.012 | 0.016 -0.012 | 0.038 | 0.009 | 0.009 | 0.006 | 0.025 |
| 20 to 24 | 0.019 | 0.025 -0.019 | 0.038 | 0.009 | 0.009 | 0.006 | 0.025 |
| 26 to 30 | 0.019 | 0.025 -0.019 | … | 0.019 | 0.012 | … | 0.038 |
| 32 to 48 | 0.019 | 0.025 -0.019 | … | 0.019 | 0.019 | … |
Yes, custom sizes for Stainless Steel 304L 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 304L butt weld fittings find common usage in applications that demand high corrosion resistance along with good weldability. They are used in chemical plants, pharmaceutical production, food processing machinery, and water treatment facilities. Fittings allow durable, leak-proof joints that can resist harsh environments and deliver safety and cleanliness in important 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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