Emilio Stainless, a reputable manufacturer and supplier located in Manila, Philippines, specializes in high-quality Stainless Steel 348H Tubing, crafted for outstanding performance in high-temperature and corrosive settings. This particular grade is a stabilized austenitic stainless steel, celebrated for its remarkable resistance to intergranular corrosion and impressive creep strength. The “H” designation signifies a higher carbon content, which boosts its strength and structural integrity at elevated temperatures. Emilio Stainless guarantees that each tube is meticulously engineered and rigorously tested to comply with international standards, making them perfect for industries like petrochemical, power generation, pharmaceuticals, and food processing, where reliability and durability are crucial.
Stainless Steel 348H Tubing is primarily composed of iron, along with 17–19% chromium, 9–13% nickel, and trace amounts of niobium, manganese, silicon, and carbon (≤0.10%). The niobium plays a key role in stabilizing the alloy against carbide precipitation, which enhances its resistance to sensitization. It boasts a tensile strength of about 515 MPa and a yield strength of around 205 MPa, along with good elongation properties. These tubes exhibit exceptional mechanical stability even when exposed to high temperatures for extended periods, ensuring excellent oxidation and creep resistance, making them ideal for challenging environments that involve thermal cycling and corrosive substances.
| Sizes: | 1/8″ to 24″ |
| ASTM A312 Steel grades: | TP304/304L/304H |
| ASTM A312 Schedules: | STD, XS, XXS, SCH5S, SCH10/10S, SCH20, SCH30, SCH40/40S, SCH60, SCH80/80S, SCH100, SCH120, SCH140, SCH160 |
| Standards: | ASTM A312, ASME SA312 |
| Lengths: | SRL and DRL 5meters up to 11meters available from Stock or Production. |
| Ends: | Plain/Bevelled |
| AISI 348H Chemical Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| C | Mn | P | S | Si | Cr | Ni | Cb | Co | Ta |
| 0.08 Max | 2.00 Max | 0.045 Max | 0.030 Max | 1.00 Max | 17.0-20.0 | 9.0-13.0 | 1.10 Max | 0.20 Max | 0.10 Max |
| Yeild strength | Tensile strength | Elongation | Reduction |
| Min 0.2% Mpa | Min Mpa | Min % | Min % |
| 205 | 515 | 30 | 50 |
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We maintains the maximum quality levels by conducting a serious testing and testing certification process to ensure Stainless Steel 348H Tubing quality. Each of the products, before they reach the customers’ doorstep, will undergo proper tests including dimensional verification, chemical analysis, and some mechanical testing procedures. The respective company issues an MTR ensuring the material conformity to international norms and specifications.
This tubing is seamless, available in various sizes with precise dimensions. It offers excellent corrosion resistance suitable for high-temperature applications.
Welded for structural integrity, available in a range of sizes. Known for its robust construction and corrosion resistance, ideal for industrial applications.
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Precision tubing with controlled dimensions for instrumentation and control systems. Provides high corrosion resistance and reliability in sensitive environments.
Engineered for high-pressure boiler systems, available in standard and custom sizes. Resistant to corrosion and oxidation, ensuring long-term performance.
U-shaped tubes used in heat exchangers and condensers, available in diverse dimensions. Offers excellent resistance to corrosion and stress cracking.
Specifically designed for condenser applications, available in various diameters. Provides superior corrosion resistance and heat transfer efficiency.
Tubes with extended surface area for enhanced heat transfer efficiency, available in multiple configurations. Offers exceptional resistance to corrosion and oxidation.
Stainless Steel 348H Tubing finds extensive use in industries that demand high thermal stability and corrosion resistance. It’s commonly utilized in heat exchangers, superheaters, boiler tubes, exhaust manifolds, and reactor systems. In chemical processing and power plants, it operates efficiently under both oxidizing and carburizing conditions. Thanks to its resistance to intergranular corrosion, it’s also favored in aerospace and marine applications. Emilio Stainless offers 348H tubing in both seamless and welded forms, catering to a variety of applications where superior mechanical properties are essential.
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