Home > Pipe Fittings > Stainless Steel 348H Pipe Fittings
Weston Stainless, based in Midland, UK, is a leading supplier of high-quality stainless steel products, specializing in pipe fittings, flanges, bars, and fasteners for industrial applications. Among its premium offerings, Stainless Steel 348H Pipe Fittings are highly regarded for their superior high-temperature strength, corrosion resistance, and durability. SS 348H is a high-carbon variant of grade 348, stabilized with niobium to prevent intergranular corrosion and enhance creep resistance. These pipe fittings come in different shapes like elbows, tees, reducers, crosses, caps, and stub ends to offer flexibility in various piping systems. Made of high-quality stainless steel, SS 348H Pipe Fittings offer excellent mechanical strength, resistance to oxidation, and durability.
Stainless Steel 348H Pipe Fittings consist of 17-19% chromium, 9-13% nickel, and increased carbon content (0.04-0.10%) for improved strength at high temperatures. They also have niobium, which enhances stability and carbide precipitation resistance. These fittings have superior mechanical properties, such as a tensile strength of about 550 MPa, a yield strength of 220 MPa, and an elongation of 35%. The hardness of SS 348H Pipe Fittings is between 160-190 HB, making them durable. Physically, they possess a density of 7.93 g/cm³, provide superior thermal conductivity, and have a high melting point, which makes them suitable for high-temperature applications.
| Grades | 201, 202, 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L |
| Type | Seamless / Welded / Fabricated |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Size | ½”NB to 48″NB in |
| Schedule | Sch 10s, 40s, 80s, 160s, XXS. |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 348H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
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Stainless Steel 348H Pipe Fittings find extensive application in high-temperature and corrosion-resistant piping applications in various industries. They are used extensively in power plants, chemical processing, petrochemical, and aerospace industries, where there is frequent exposure to high heat and corrosive chemicals. These fittings are critical in heat exchangers, boilers, reactor parts, and high-pressure pipes. Due to their superior oxidation and creep resistance, they are ideal for use in oil refineries, offshore platforms, and seas. Having superior mechanical strength and weldability, SS 348H Pipe Fittings provide long-lasting performance and reliability in harsh industrial uses.
High-temperature, corrosion-resistant components designed for extreme heat applications. They ensure durable, reliable connections in harsh environments, handling high-stress conditions with superior performance.
High-temperature, corrosion-resistant components used to create strong, seamless connections between pipes. They ensure durability and reliability in extreme heat and harsh environments.
High-temperature, corrosion-resistant components designed for secure, leak-proof connections. They handle extreme heat and harsh conditions, providing durable performance in critical applications.
High-temperature, corrosion-resistant components without joints, ensuring robust, leak-proof connections. They are ideal for extreme heat applications and harsh environments, providing durability and performance.
High-temperature, corrosion-resistant components that connect four pipes at a central junction. They ensure strong, reliable connections in extreme heat and harsh conditions.
High-temperature, corrosion-resistant components designed to connect three pipes at a right angle. They ensure durable, reliable connections in extreme heat and demanding environments.
Stainless Steel 348H Pipe Fittings are accompanied by critical test certificates, such as Mill Test Certificates (MTC), third-party inspection documents, and conformity documents to guarantee superior quality. Safe transportation is assured through wooden crates, bubble wraps, or carton boxes to avoid transit damage. Deliveries are prompt, serving both national and international clients with sound logistics assistance. Custom packaging and specifications are offered to serve industry-specific needs, guaranteeing customers receive high-quality, defect-free goods specifically intended for them.
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