Nguyen Fittings and Plates, located in Da Nang, Vietnam, is a reputable manufacturer and supplier of **Stainless Steel 904L Pipe Fittings** designed specifically for highly corrosive and critical process environments. These fittings are crafted to deliver outstanding corrosion resistance, impressive mechanical strength, and secure, leak-proof connections in challenging chemical and marine systems. With a focus on precision forming, controlled machining, and rigorous quality assurance, Nguyen Fittings ensures that their products feature accurate dimensions, smooth internal surfaces, and consistent wall thickness. Catering to industries such as chemical processing, petrochemical, offshore, pharmaceutical, paper, and power generation, Nguyen Fittings provides SS 904L Pipe Fittings that comply with international standards, guaranteeing long-lasting, safe, and efficient performance in demanding piping networks.
| 904L Pipe Fittings Specifications | ASTM A403/ ASME SA403 |
|---|---|
| 904L SS Pipe Fittings size | 904L Seamless Butt Weld Fittings : 1/2″ – 10″ 904L Welded Butt Weld Fittings : 1/2″ – 48″ |
| SS 904L Pipe Fittings Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 |
| Stainless Steel 904L 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 |
| 904L Buttweld Pipe FittingsType | DN15-DN1200 |
| ASTM A403 904L Buttweld Fitting Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM A403 Grade WP904L Pipe Fitting |
| Size Range | ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM A403 WP 904L Buttweld Fitting |
| ASTM A403 WP904L Buttweld Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
| 904L 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 WP904L Pipe Fittings Origin & Mills | Japanese, Indian, USA, Korean, European, Ukraine, Russian |
| Specialized manufacturer of | SS UNS N08904, N08904 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 904L Pipe Fittings are composed of 19–23% chromium, 23–28% nickel, 4–5% molybdenum, and 1–2% copper, with a low carbon content (0.02% max), offering exceptional resistance to corrosion, pitting, and stress corrosion cracking in harsh environments. They exhibit a tensile strength of 490 MPa minimum, a yield strength of 220 MPa minimum, and 35% elongation, ensuring durability and reliability. This unique combination of properties makes them ideal for use in chemical processing, marine, and other industries requiring superior performance in challenging conditions.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00 – 23.00 | 4.00 – 5.00 max | 23.00 – 28.00 | 1.00 – 2.00 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
Stainless Steel 904L Pipe Fittings are constructed from a high-alloy austenitic stainless steel that includes elevated levels of chromium, nickel, molybdenum, and copper. This unique composition grants exceptional resistance to reducing acids like sulfuric acid and protects against pitting and crevice corrosion in chloride-rich environments. The low carbon content helps reduce the risk of intergranular corrosion after welding. These fittings also maintain good tensile and yield strength, toughness, and structural stability across a wide temperature range, making them perfect for both welded and seamless piping systems.
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 904L Pipe 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.
| Product range and theoretical weights (kg) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| DN | Schedule 10S | Schedule 40S | Schedule 80S | ||||||
| 900 Elbow | 450 Elbow | Equal tee | 900 Elbow | 450 Elbow | Equal tee | 900 Elbow | 450 Elbow | Equal tee | |
| 8 | 0.02 | 0.01 | 0.03 | 0.03 | 0.02 | 0.06 | 0.04 | 0.03 | 0.07 |
| 10 | 0.03 | 0.02 | 0.05 | 0.03 | 0.02 | 0.03 | 0.06 | 0.04 | 0.09 |
| 15 | 0.06 | 0.03 | 0.09 | 0.08 | 0.04 | 0.10 | 0.10 | 0.05 | 0.14 |
| 20 | 0.07 | 0.03 | 0.13 | 0.08 | 0.04 | 0.17 | 0.11 | 0.05 | 0.20 |
| 25 | 0.14 | 0.08 | 0.28 | 0.15 | 0.11 | 0.29 | 0.22 | 0.14 | 0.38 |
| 32 | 0.23 | 0.11 | 0.49 | 0.26 | 0.17 | 0.59 | 0.40 | 0.23 | 0.68 |
| 40 | 0.30 | 0.17 | 0.68 | 0.40 | 0.23 | 0.86 | 0.51 | 0.29 | 1.02 |
| 50 | 0.50 | 0.25 | 0.85 | 0.70 | 0.4 | 1.28 | 0.91 | 0.59 | 1.59 |
| 65 | 0.85 | 0.48 | 1.41 | 1.40 | 0.77 | 2.19 | 1.81 | 0.99 | 3.13 |
| 80 | 1.25 | 0.63 | 1.77 | 2.20 | 1.08 | 3.31 | 2.97 | 1.50 | 4.45 |
| 90 | 1.70 | 0.75 | 2.67 | 2.83 | 1.42 | 4.08 | 4.00 | 2.00 | 5.44 |
| 100 | 2.10 | 1.08 | 3.46 | 4.47 | 2.09 | 5.27 | 6.18 | 2.81 | 7.71 |
| 150 | 5.45 | 2.72 | 8.07 | 10.89 | 5.44 | 10.99 | 16.32 | 8.16 | 13.61 |
| 200 | 10.20 | 5.33 | 15.65 | 21.54 | 10.77 | 20.91 | 33.11 | 16.56 | 28.12 |
| 250 | 18.15 | 9.75 | 26.46 | 38.56 | 19.27 | 35.38 | 51.71 | 25.86 | 49.90 |
| 300 | 25.80 | 13.62 | 39.46 | 59.42 | 29.71 | 62.14 | 79.38 | 39.69 | 83.91 |
SS 904L Pipe Fittings offer outstanding advantages, including exceptional resistance to corrosion, pitting, and stress corrosion cracking, particularly in acidic and chloride-rich environments. The high nickel and molybdenum content ensures excellent durability even in harsh conditions. These fittings maintain structural integrity at high temperatures and under thermal cycling. With low carbon content, they prevent carbide precipitation, making them ideal for welding applications. Their superior strength, ease of fabrication, and resistance to aggressive chemicals make them ideal for industries like chemical processing, pharmaceuticals, and marine applications.
Yes, custom sizes are available for Stainless Steel 904L 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@nguyenfittings.com.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | KS | AFNOR | EN |
| SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
SS 904L Pipe Fittings find extensive use in chemical plants, sulfuric and phosphoric acid production facilities, offshore oil and gas platforms, seawater treatment plants, pulp and paper mills, pharmaceutical production systems, and air pollution control equipment. They are the go-to choice where extreme corrosion resistance, long service life, and mechanical reliability are crucial. With their blend of durability, weldability, and high-performance corrosion protection, SS 904L Pipe Fittings are a preferred option for demanding applications.
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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