Nguyen Fittings and Plates, located in Da Nang, Vietnam, produces Stainless Steel 304H Buttweld Fittings designed for high-temperature and pressure-critical use. With a higher percentage of carbon than normal 304, SS 304H provides enhanced strength and creep resistance. Produced to ASME B16.9 and ASTM specifications, Nguyen’s fittings are elbows, tees, reducers, and caps. Designed to perform in heat-generating situations, they are relied upon in industries such as energy, chemical, and petrochemical processing.
Specifications : ASTM A403 / ASME SA403
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
Size : Seamless Butt Weld Fittings : 1/2″ – 10″ | Welded Butt Weld Fittings : 1/2″ – 48″
Schedule : SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75
Bending Radius : R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Type : Seamless / ERW / Welded / Fabricated
Thickness :20 Swg., 18 Swg., 16 Swg., 14 Swg., 12 Swg., 10 Swg., & Sch. 10, Sch. 40, Sch. 80 etc.
SS 304H has 18–20% chromium, 8–11% nickel, and 0.04–0.10% carbon, providing greater tensile strength (~585 MPa) and creep resistance. It resists high temperatures up to 870°C with good oxidation and formability. Weldability is maintained and structural stability against thermal cycling enables long life in harsh operations.
| C | Mn | Si | P | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|
| 304 | 0.07max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 10.5 | — |
| 304L | 0.03max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 12.0 | 0.10 max |
| 304H | min: 18.0 max:20.0 | min: 8.0 max: 10.5 | min: 0.04 max:0.10 | 0.75 max | 2.0 max | 0.045 max | 0.03 max | 0.10 max |
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 304 | 75 | 30 | 40 | 201 | 92 |
| 304L | 70 | 25 | 40 | 201 | 92 |
| 304H | 75 | 30 | 40 | 201 | 92 |
Nguyen Fittings is a leading supplier of Stainless Steel 304H Buttweld Fittings in Da Nang, Vietnam. We offer an extensive range of Stainless Steel 304H 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 | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
|---|---|---|---|---|---|---|---|
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| SS 304L | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 304S11 | 03Х18Н11 |
| SS 304H | S30409 | 1.4301 | – | – | – | – | – |
Stainless Steel 304H 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 304H Buttweld Fittings offer excellent mechanical properties, high thermal strength and corrosion resistance, making them ideal for critical operating conditions They maintain structural integrity at high temperatures, ensuring long life and performance in heat exchanger, power plant and chemical processing applications Their high carbon content resists creep increases, thereby reducing the risk of deformation over time. These components are easily welded, providing a secure, watertight connection. Additionally, 304H’s versatility and scaling resistance make it suitable for a wide range of applications, from petrochemical to food processing.
| SS 304/304L | ||||||
|---|---|---|---|---|---|---|
| Density lbm/in3 | Thermal Conductivity (BTU/h ft. °F) | Electrical Resistivity (in x 10-6) | Modulus of Elasticity (psi x 106 | Coefficient of Thermal Expansion (in/in)/ °F x 10-6 | Specific Heat (BTU/lb/ °F) | Melting Range (°F) |
| at 68°F: 0.285 | 9.4 at 212°F | 28.3 at 68°F | 28 | 9.4 at 32 – 212°F | 0.1200 at 68°F to 212°F | 2500 to 2590 |
| 12.4 at 932 °F | 39.4 at 752°F | 10.2 at 32 – 1000°F | ||||
| 49.6 at 1652 °F | 10.4 at 32 – 1500°F | |||||
| SS 304H | ||||||
| Denstiy lbm/in3 | Coefficient of Thermal Expansion (min/in)-°F | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | ||
| at 68 °F | at 68 – 212°F | at 68 – 1600°F | at 212°F | at 932°F | at 32 – 212°F | in tension (E) |
| 0.285 | 9.2 | 11.0 | 9.4 | 12.4 | 0.12 | 29 x 106 |
Yes, custom sizes for Stainless Steel 304H 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.
304H buttweld fittings are employed in boiler and steam systems, pressure vessel networks, furnace piping, and heat exchangers. They are integral to thermal power plants, refineries, and industrial steam circuits where high-temperature strength and stability are essential. Such fittings support safety-critical components to ensure continuous operational integrity in sustained heat-exposure 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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