Home > Forged Fittings > Stainless Steel 317/317L Forged Fittings
Operating from Manama, Bahrain, Niazi Stainless has established itself as a trusted manufacturer and supplier of high-performance industrial components. Our specialty lies in providing robust Stainless Steel 317/317L Forged Fittings, engineered for the most challenging environments. We understand that reliability is non-negotiable in critical operations, which is why we are committed to delivering fittings that offer superior corrosion resistance and long-lasting durability, ensuring your piping systems perform with unwavering integrity.
The strength of these fittings comes from their specific composition, which includes higher levels of molybdenum, chromium, and nickel than standard alloys. This formulation grants Stainless Steel 317/317L exceptional resistance to a wide range of corrosive chemicals, particularly chlorides that cause pitting. Combined with excellent mechanical properties like high tensile strength and good ductility, these forged fittings are built to maintain their structural integrity under high pressure and stress, offering peace of mind in demanding applications.
Specifications ASTM A182 & ASME SA182
Standard ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
Size 1/8” NB to 4” NB (Socketweld & Screwed-Threaded)
Class 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
Type Socketweld Fittings, Screwed-Threaded Fittings
Forged Fittings Items 45 Deg Elbow, 90 Deg Elbow, Forged Tee, Union, Full Coupling, Half Coupling, Cross, Cap, Swage Nipple, Plug, Bush, Welding Boss, Hexagonal Nipple etc.
Type Socketweld Fittings, Screwed-Threaded Fittings
Grade 317 / 317L UNS (S31700, S31703), DIN (1.4449, 1.4438)
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 317 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 – 20.00 | 3.00 – 4.00 | 11.00 – 15.00 | 57.845 min |
| SS 317L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 – 20.00 | 3.00 – 4.00 | 11.00 – 15.00 | 57.89 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.9 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Contact us to get a quick quote for your requirement.
We ensures that all stainless steel 317/317L forged fittings go through rigorous testing procedures, including dimensional testing, mechanical testing and corrosion resistance testing. The products are certified to meet international quality standards, including ASTM, ASME, and EN specifications, providing customers with guaranteed reliability and performance for a range of industrial applications
Stainless Steel 317 Socket Weld Fittings are renowned for their excellent corrosion resistance and are commonly used in high-pressure applications. They are available in sizes ranging from 1/8″ to 4″ and are manufactured to meet ASTM standards, ensuring strong, leak-proof connections.
Offering high corrosion resistance, these fittings are designed for easy installation in various piping systems. Common sizes range from 1/8″ to 6″ NPT, providing versatility and robustness in handling fluids and gases.
With superior corrosion resistance, this elbow allows for smooth directional changes in piping systems. It is available in sizes from 1/2″ to 4″ and is designed to meet ASTM specifications for high strength and durability.
This fitting combines high corrosion resistance with structural integrity, ideal for branching pipes at a 90-degree angle. Available in sizes from 1/8″ to 6″ NPT, it ensures reliable and secure connections.
Known for its excellent corrosion resistance, this half coupling connects two threaded pipes or fittings. Common sizes include 1/4″ to 4″ NPT, providing a strong and durable link.
This cross-fitting offers exceptional corrosion resistance, enabling the intersection of four pipes. Sizes typically range from 1/2″ to 4″, adhering to ASTM standards for robustness and reliability in high-pressure applications.
These qualities make Stainless Steel 317/317L Forged Fittings indispensable across several heavy-duty industries. You will find them performing reliably in chemical processing plants, handling aggressive acids, and in petrochemical refineries where they withstand corrosive byproducts. They are also essential in pulp and paper manufacturing, pollution control equipment, and particularly in offshore and coastal installations where saltwater exposure is a constant threat. Essentially, they are the go-to choice for any system where standard stainless steels would quickly succumb to corrosion.







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