Home > Forged Fittings > Stainless Steel 317/317L Forged Fittings
Lecong Stainless stands out as a top manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 317/317L Forged Fittings. These fittings are designed to offer exceptional strength, durability, and impressive resistance to corrosion. What sets them apart is their higher molybdenum content compared to standard grades, which provides remarkable protection against pitting, crevice corrosion, and chemical attacks, even in the toughest environments. The 317L variant, with its low carbon content, not only enhances weldability but also reduces the risk of sensitization, making these fittings perfect for critical applications. Lecong Stainless is committed to precision engineering and rigorous quality control, ensuring that their forged fittings meet international standards and are reliable for industries throughout Vietnam and beyond.
The composition of Stainless Steel 317/317L Forged Fittings includes 18–20% chromium, 11–15% nickel, and 3–4% molybdenum, along with carefully controlled amounts of carbon, manganese, and silicon. The elevated molybdenum content significantly boosts corrosion resistance, particularly in environments rich in chlorides and acids. The low carbon content in Type 317L helps to minimize carbide precipitation during welding, which in turn enhances intergranular corrosion resistance. These fittings boast a tensile strength of around 515 MPa, a yield strength of 205 MPa, and an elongation of approximately 35–40%. Their strong mechanical properties, paired with superior corrosion resistance, make Stainless Steel 317/317L Forged Fittings ideal for long-term use in demanding service conditions.
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.
You’ll find Stainless Steel 317/317L Forged Fittings commonly used across various industries, including chemical processing, petrochemicals, marine applications, pulp and paper, pharmaceuticals, and food processing. They are particularly well-suited for heat exchangers, pressure vessels, condensers, and piping systems that come into contact with harsh chemicals and seawater. Their outstanding corrosion resistance makes them a great choice for offshore oil and gas platforms, refineries, and desalination plants. Plus, their durability and toughness ensure they can handle high-pressure situations effectively.
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