Nguyen Fittings and Plates is a long-standing producer and provider of Stainless Steel 348/348H Forged Fittings based in Da Nang, Vietnam. Recognized for quality workmanship and quality that is consistent, the company specializes in offering forged fittings for high-pressure and high-temperature applications. With an uncompromising adherence to global quality standards and customer satisfaction, Nguyen Fittings and Plates caters to a diverse array of industries such as petrochemicals, power generation, aerospace, and thermal processing. Their Stainless Steel 348/348H Forged Fittings are designed to provide superior performance, reliability, and durability, even in extreme operating conditions.
Specifications : ASTM A403 / ASME SA403
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size : 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Type : Seamless / Welded / Fabricated
Bending Radius : R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness : Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
Stainless Steel 348/348H Forged Fittings are columbium-stabilized austenitic stainless steels with a composition close to 347/347H but with tighter control over carbon and niobium (columbium) content. These grades have superior resistance against intergranular corrosion and oxidation, particularly in elevated temperature service. 348H has higher carbon for improved creep strength. They generally offer tensile strength of approximately 515 MPa and yield strength of approximately 205 MPa, having excellent mechanical stability under heat stress. These characteristics make 348/348H a perfect choice for applications at high temperatures, where carbide precipitation exposure is a concern.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 348/348H | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 10 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Nguyen Fittings is a leading supplier of Stainless Steel 348/348H Forged Fittings in Da Nang, Vietnam. We offer an extensive range of Stainless Steel 348/348H Forged 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.
Choose Stainless Steel 348/348H Forged Fittings from Nguyen Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Stainless steel 348/348H forged fittings offer many advantages, including superior resistance to intergranular corrosion especially in high temperature environments Stable alloy and niobium ensure improved strength and weldability, making it ideal for rugged applications as power plants and petrochemical industries without losing its mechanical properties are designed to withstand temperatures up to 1600°F (870°C) temperature. High tensile strength, excellent durability, and resistance to oxidation and scaling make it durable and reliable. Furthermore, its corrosion resistance enhances durability and maintenance-free operation in harsh industrial environments.
Yes, custom sizes for Stainless Steel 348/348H Forged 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
Stainless Steel 348/348H Forged Fittings are employed in high-temperature and corrosive service conditions where thermal stability and intergranular corrosion resistance are critical. They are widely used in power plants, chemical processing facilities, oil and gas refineries, and aerospace applications. These fittings are particularly suited for heat exchanger tubing, furnace parts, reactor vessels, and exhaust systems since they can sustain high temperatures without compromising on strength and integrity. Their superior weldability and resistance to scaling also qualify them for steam piping and superheater applications, where performance is ensured over extended service life.
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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