Stainless Steel 317 Forged Fittings are highly demanded across various industries due to their excellent resistance to corrosion, superior strength, and long-lasting performance. As a leading Stainless Steel 317 Forged Fittings Supplier, we ensure that our products meet international quality standards and provide exceptional reliability for demanding industrial applications.

Our forged fittings are manufactured using advanced forging and heat treatment processes to achieve optimal mechanical properties. Whether you need SS 317 Socket Weld Fittings, SS 317 Threaded Fittings, or customized forged components, we supply products designed to perform in harsh and corrosive environments.

Overview of Stainless Steel 317

Stainless Steel 317 is an austenitic chromium-nickel-molybdenum alloy known for its improved resistance to chemical attack compared to 304 and 316 stainless steels. The presence of molybdenum (3–4%) enhances its resistance to pitting and crevice corrosion in chloride environments, while its higher chromium and nickel content offers excellent strength at high temperatures.

Chemical Composition of SS 317:

  • Chromium (Cr): 18.0–20.0%

  • Nickel (Ni): 11.0–15.0%

  • Molybdenum (Mo): 3.0–4.0%

  • Carbon (C): ≤ 0.08%

  • Manganese (Mn): ≤ 2.0%

  • Silicon (Si): ≤ 1.0%

  • Phosphorus (P): ≤ 0.045%

  • Sulfur (S): ≤ 0.03%

This chemical balance gives SS 317 its outstanding resistance to a variety of corrosive media, making it suitable for aggressive environments such as chemical processing, marine, and power plants.

Types of Stainless Steel 317 Forged Fittings

As a trusted Stainless Steel 317 Forged Fittings Supplier, we provide a comprehensive range of fittings that ensure leak-proof and durable pipe connections. Each fitting type serves specific purposes and is designed for strength, precision, and longevity.

1. SS 317 Socket Weld Fittings

Socket weld fittings are used for small pipe diameters, typically below 2 inches. These fittings are ideal for high-pressure applications. The pipe is inserted into a recessed area of the fitting and then welded, providing a strong and permanent joint.

Types include:

  • Socket Weld Elbow (90° & 45°)

  • Socket Weld Tee

  • Socket Weld Coupling

  • Socket Weld Cross

  • Socket Weld Union

  • Socket Weld Cap

2. SS 317 Threaded Fittings

Threaded forged fittings are suitable for low-pressure applications and can be assembled or disassembled without welding. They are easy to install and maintain.

Common types:

  • Threaded Elbow

  • Threaded Tee

  • Threaded Coupling

  • Threaded Cap

  • Threaded Union

  • Threaded Plug

3. Customized Forged Fittings

We also supply customized SS 317 forged fittings based on client requirements, including different dimensions, pressure ratings, and end connections. All fittings are tested and certified before dispatch to ensure reliability in critical applications.

Key Features of SS 317 Forged Fittings

  • Excellent Corrosion Resistance: Performs well in acidic and chloride-rich environments.

  • High Strength: Withstands high pressure and temperature without deformation.

  • Durable and Long-Lasting: Offers long service life even under severe operating conditions.

  • Non-Magnetic in Annealed State: Ideal for sensitive industrial applications.

  • Easy Fabrication: Can be machined, welded, and formed with ease.

  • Hygienic Surface Finish: Suitable for use in food and pharmaceutical processing equipment.

Applications of Stainless Steel 317 Forged Fittings

SS 317 Forged Fittings are widely used in industries that demand strength, reliability, and corrosion resistance. They are suitable for both high-pressure and corrosive applications.

Common industries and uses include:

  • Chemical Processing Plants: Resistant to sulfuric and acetic acids.

  • Petrochemical Industry: Used in pipelines and processing systems.

  • Power Generation: Ideal for steam and gas turbines.

  • Marine Applications: Excellent performance in saltwater environments.

  • Pharmaceutical Industry: Used in clean and hygienic piping systems.

  • Food & Beverage Industry: Maintains product purity during processing.

  • Pulp and Paper Industry: Handles corrosive bleaching agents effectively.

Each fitting is designed to maintain integrity under extreme conditions, ensuring smooth fluid flow and safety in industrial systems.

Manufacturing Process of SS 317 Forged Fittings

The manufacturing process plays a crucial role in determining the quality and durability of the fittings. Our Stainless Steel 317 Forged Fittings are produced under strict quality control procedures to meet ASTM and ASME standards.

Step-by-Step Process:

  1. Raw Material Selection:
    Premium-grade stainless steel 317 billets are sourced from trusted mills.

  2. Cutting and Heating:
    The billets are cut into specific lengths and heated to forging temperature.

  3. Forging:
    The heated billets are shaped under high pressure using dies to achieve the desired fitting shape.

  4. Heat Treatment:
    The forged fittings undergo annealing to improve toughness and corrosion resistance.

  5. Machining:
    Precision machining ensures accurate dimensions and smooth surfaces.

  6. Threading / Welding Preparation:
    Depending on the type, fittings are threaded or prepared for socket weld connections.

  7. Testing and Inspection:
    Each fitting is tested for dimensional accuracy, pressure integrity, and corrosion resistance.

  8. Surface Finishing:
    The fittings are polished or pickled to achieve a clean, corrosion-resistant finish.

  9. Packaging and Dispatch:
    Finished fittings are securely packed to prevent damage during transit.

Standards and Specifications

Our SS 317 forged fittings comply with international standards, ensuring compatibility and performance in global markets.

Standards:

  • ASTM A182 / ASME SA182 – Forged or Rolled Alloy-Steel Pipe Flanges and Fittings

  • ANSI B16.11 – Forged Steel Fittings, Socket-Welding, and Threaded

  • MSS-SP-79 / 83 / 95 / 97 – Socket Weld and Threaded Fittings

Pressure Class Ratings:

  • Class 2000, 3000, 6000, and 9000

Available Sizes:

  • 1/8” to 4” (Socket Weld & Threaded)

Testing and Quality Assurance

Quality is our top priority as a trusted Stainless Steel 317 Forged Fittings Supplier. Each fitting undergoes multiple quality checks to ensure flawless performance.

Tests Conducted:

  • Hydrostatic Testing

  • PMI (Positive Material Identification)

  • Hardness Test

  • IGC (Intergranular Corrosion Test)

  • Tensile Strength Test

  • Visual and Dimensional Inspection

  • Ultrasonic and Radiography Testing

All fittings are supplied with Mill Test Certificates (EN 10204/3.1) and comply with all relevant quality standards.

Why Choose Us as Your Stainless Steel 317 Forged Fittings Supplier

When selecting a supplier for stainless steel fittings, reliability, quality, and service matter most. Here’s why industries trust us:

  • Comprehensive Product Range: Full range of SS 317 forged fittings available in different types and pressure classes.

  • Quality Assurance: Strict adherence to ASTM, ASME, and ANSI standards.

  • Timely Delivery: Efficient logistics and large inventory ensure quick dispatch.

  • Competitive Prices: Affordable pricing without compromising on quality.

  • Global Supply Network: Trusted supplier for domestic and international clients.

  • Custom Solutions: Tailor-made fittings designed to meet specific industrial requirements.

Our commitment to quality and customer satisfaction has established us as one of the most trusted names in stainless steel fittings supply.

Conclusion

 

Stainless Steel 317 Forged Fittings are a reliable solution for industries that operate under corrosive and high-pressure environments. With superior resistance to chemical attack, excellent strength, and durability, these fittings ensure long-lasting performance and safety in industrial systems.