Home > Forged Fittings > Stainless Steel 348/348H Forged Fittings
Lecong Stainless is a reputable manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 348/348H Forged Fittings. These fittings are crafted for exceptional performance in high-temperature environments, boasting durability and impressive corrosion resistance. The Stainless Steel 348/348H alloy, which is titanium-stabilized and austenitic, excels in resisting intergranular corrosion, stress corrosion cracking, and oxidation, even at elevated temperatures. Each forged fitting is meticulously engineered to comply with international standards, making them perfect for critical piping and industrial applications where strength, reliability, and long-lasting performance under thermal stress are crucial. Lecong Stainless is committed to maintaining consistent quality through advanced manufacturing processes and thorough quality inspections.
The composition of Stainless Steel 348/348H Forged Fittings primarily includes iron, chromium (17–19%), nickel (8–12%), and titanium for stabilization, along with manganese, silicon, and a controlled amount of carbon. The titanium stabilization helps prevent carbide precipitation during welding, which enhances corrosion resistance and preserves mechanical strength at high temperatures. These fittings exhibit impressive mechanical properties, including a tensile strength ranging from 515 to 750 MPa and a yield strength between 205 and 275 MPa, along with excellent creep and oxidation resistance up to 650–700°C. Their toughness, dimensional stability, and long-term durability make them ideal for high-pressure and high-temperature industrial settings.
| STANDARD | Stainless Steel 348/348H Forged Fittings |
| EN | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
| JIS | SUS 316L |
| BS | 316S11 / 316S13 |
| UNS | S31603 |
| WERKSTOFF NO. | 1.4404 / 1.4435 |
| AFNOR | Z7CND17‐11‐02 |
| GOST | 03Ch17N14M3 / 03Ch17N14M2 |
| 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 % |
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At Lecong Stainless, all stainless steel 348/348H forged fittings are rigorously tested to ensure they meet international quality standards. Each product is tested for durability, corrosion resistance and high temperature performance. Accredited by recognized authorities, we issue Material Testing Reports (MTRs) for our fittings, ensuring reliability and customer confidence with every purchase.
Corrosion-resistant and ideal for high-temperature applications, these fittings provide robust, leak-proof connections. Common sizes range from ½” to 4″ in diameter. Socket weld fittings are used in industries like chemical processing and petrochemicals for their strength and reliability.
Offering excellent corrosion resistance, these fittings are designed for high-stress and high-temperature applications. Available sizes typically range from ¼” to 2″ in diameter. They ensure secure and leak-free connections and are ideal for use in oil and gas industries.
Highly resistant to corrosion, this elbow facilitates changes in direction with a 45-degree bend. Standard sizes range from ½” to 4″ in diameter. It redirects its flow in pipelines, especially in chemical and petrochemical industries.
Featuring superior corrosion resistance, this tee allows for branching off a main line. Sizes generally range from ¼” to 2″ in diameter. They are commonly used in high-temperature and high-pressure environments, ensuring durability and reliability in critical applications.
Known for its corrosion resistance, this half coupling is used to join pipes or tubes of the same diameter. Typical sizes range from ¼” to 2″ in diameter. It is essential for creating extensions or connections in industrial piping systems.
Corrosion-resistant and durable, this cross-fitting allows four-way connections in piping systems. Available in sizes from ½” to 4″ in diameter. It’s used in complex pipeline networks to facilitate multiple branch connections, especially in chemical and petrochemical industries.
Stainless Steel 348/348H Forged Fittings find extensive use in industries that demand reliable and heat-resistant piping solutions. They are commonly utilized in power generation, chemical and petrochemical processing, refineries, and boiler systems. Typical applications include high-temperature pipelines, reactor systems, pressure vessels, and heat exchangers. Their corrosion resistance and strength also make them suitable for marine, aerospace, and pharmaceutical sectors. Furthermore, these fittings are employed in food processing and water treatment systems, where both high performance and safety are paramount.
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