Home > Forged Fittings > Stainless Steel 348/348H Forged Fittings
Strategically located in the dynamic industrial heart of Manama, Bahrain, Niazi Stainless has established itself as a trusted name for high-performance stainless steel solutions. We take pride in supplying and manufacturing premium Stainless Steel 348/348H Forged Fittings, engineered to meet the most demanding specifications. Our commitment lies in providing robust components that ensure longevity and reliability for critical projects across the region and beyond, backed by our deep expertise and a customer-centric approach to every order.
The exceptional performance of 348/348H stems from its specialized composition, which includes the addition of columbium (niobium) and tantalum. This carefully balanced alloy delivers superior resistance to intergranular corrosion following exposure to high temperatures. Mechanically, these fittings are impressive, offering high tensile strength and excellent creep resistance, allowing them to maintain structural integrity under extreme pressure and sustained heat, typically up to around 1600°F, making them a robust choice for severe service conditions.
| 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 Niazi 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.
These forgings are indispensable in environments where standard stainless steels would fail. You will typically find them in the core systems of refineries, chemical processing plants, and high-temperature piping networks, especially where sensitization and subsequent corrosion are major concerns. Their stability makes them ideal for furnace parts, pressure vessels, and heat exchangers, providing a dependable solution for industries that cannot afford downtime, from power generation to specialized manufacturing, ensuring safety and operational continuity.
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