Nguyen Fittings and Plates, located in Da Nang, Vietnam, is a reliable manufacturer and supplier of **Stainless Steel 304 Buttweld Fittings** designed for welded piping systems that demand corrosion resistance, mechanical strength, and leak-proof connections. These fittings are crafted with precision to ensure smooth flow, accurate dimensions, and long-lasting durability. Through advanced forming, machining, and strict quality control, Nguyen Fittings provides products that adhere to international standards. Catering to industries such as chemical processing, petrochemical, marine, pharmaceutical, food and beverage, and general industrial piping applications, SS 304 Buttweld Fittings deliver safe, dependable, and efficient performance across a variety of service environments.
| 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 304 Buttweld Fittings are constructed from a chromium-nickel austenitic stainless steel, known for its outstanding corrosion resistance in both oxidizing and mildly reducing conditions. They boast good tensile and yield strength, ductility, and toughness, along with impressive resistance to oxidation. These fittings are suitable for both welded and seamless piping systems, offering stability under moderate temperatures and mechanical stress while allowing for easy fabrication and installation.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 304 | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | 0.10 | ||
| 304L | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 12.0 | 0.10 | ||
| 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 | ||||
| 304 | 515 | 205 | 40 | 92 | 201 |
| 304L | 485 | 170 | 40 | 92 | 201 |
Nguyen Fittings is a leading supplier of Stainless Steel 304 Buttweld Fittings in Da Nang, Vietnam. We offer an extensive range of Stainless Steel 304 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.
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
|---|---|---|---|---|---|---|---|
| BS | En | No | Name | ||||
| 304 | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |
| 304L | S30403 | 304S11 | 58E | 1.4306/1.4307 | X2CrNi18-9 / X2CrNi19-11 | 2332 | SUS 304L |
Stainless Steel 304 Buttweld Fittings from Nguyen 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 304 buttweld fittings provide excellent corrosion resistance, making them ideal for a variety of environments including marine and chemical applications Their long-lasting strength ensures long service life, and reduces replacement costs. These fittings have excellent weldability, providing easy and reliable installation. With great strength and strength, they withstand changes in pressure and temperature well. Their smooth interior reduces friction losses and increases flow efficiency in piping systems. Also, SS 304 is cost-effective compared to high-quality alloys while maintaining a luxurious appearance. These advantages make SS 304 buttweld fittings versatile for a variety of applications.
| 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 304 Buttweld Fittings are available at Nguyen Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@nguyenfittings.com.
SS 304 Buttweld Fittings find extensive use in chemical processing pipelines, water treatment systems, HVAC systems, food and beverage processing, pharmaceutical production, marine pipelines, and general industrial applications. They are perfect for systems that require reliable corrosion resistance, robust welded connections, and minimal maintenance. The blend of durability, fabrication flexibility, and corrosion protection makes SS 304 Buttweld Fittings a trusted choice for engineers and operators looking for long-lasting, safe, and efficient piping solutions.
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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