Stainless Steel 317/317L Forged Fittings Manufacturer and Supplier in Chennai, India
Based in Chennai, India, we proudly stand as a top manufacturer and supplier of **Stainless Steel 317/317L Forged Fittings**. Our products are crafted with care to deliver outstanding performance, especially in tough, corrosive, and high-pressure settings. Thanks to their high molybdenum content, these fittings excel in resisting pitting, crevice corrosion, and chemical attacks. You’ll find SS 317/317L forged fittings in various industries, including pulp and paper, chemical processing, marine, and petrochemicals. We adhere to international standards and utilize advanced forging techniques to ensure our fittings are durable, strong, and leak-proof. Our commitment to timely delivery, precision, and reliable service keeps our global clients satisfied.
Table of Contents
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Stainless Steel 317/317L Forged Fittings Specification
Specifications : ASTM A182 / ASME SA182
Dimensions : ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799
Size : 1/8″ NB to 4″ NB
Type : Socketweld Fittings, Screwed-Threaded Fittings (NPT or PT Type)
Rating Pressure : Threaded End – 2000 /3000/ 6000 LBS. Socket-weld End – 3000 / 6000/ 9000 LBS.
When it comes to composition, **Stainless Steel 317/317L Forged Fittings** contain 18–20% chromium, 11–15% nickel, and 3–4% molybdenum. The 317L variant is particularly noteworthy for its low carbon content (max 0.03%), which enhances weldability and resistance to intergranular corrosion. These austenitic stainless steels are known for their excellent corrosion resistance, especially in acidic and chloride-rich environments. They boast impressive mechanical properties, including a tensile strength of 515 MPa, yield strength of 205 MPa, and an elongation of 35–40%. Commonly forged fittings like elbows, tees, couplings, unions, caps, and crosses are perfect for high-stress and high-corrosion piping systems.
Stainless Steel 317/317L Forged Fittings Chemical Compostion
| 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 |
Stainless Steel 317/317L Forged Fittings Mechanical Properties
| 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 % |
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Largest Stainless Steel 317/317L Forged Fittings Supplier in Chennai, India
Meet Fittings is a leading supplier of Stainless Steel 317/317L Forged Fittings in Chennai, India. We offer an extensive range of Stainless Steel 317/317L Forged Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
If You Are Looking To Buy High Quality
Stainless Steel 317/317L Forged Fittings Equivalent Grade
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 317 | 1.4449 | S31700 | SUS 317 | – |
| SS 317L | 1.4438 | S31703 | SUS 317L | X2CrNiMo18-15-4 |
Why Choose Stainless Steel 317/317L Forged Fittings from Meet Fittings?
Choose Stainless Steel 317/317L Forged Fittings from Meet Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
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Stainless steel 317/317L forged fittings provide excellent corrosion resistance, especially in high chloride environments, making them ideal for chemical, petrochemical, and marine applications These alloys have excellent strength and thermal stability even at higher levels, providing longer service life. The low carbon content of 317L reduces carbide precipitation, increases weldability and reduces the susceptibility to stress corrosion cracking. In addition, they are more resistant to oxidation and pitting, increasing the longevity of the systems. Their high resistance to sulfuric and hydrochloric acids makes them suitable for aggressive chemical applications.
Types of Stainless Steel 317/317L Forged Fittings
Are Custom Sizes Available for Stainless Steel 317/317L Forged Fittings?
Yes, custom sizes for Stainless Steel 317/317L Forged Fittings are available at Meet Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@meetfitings.co.in
Pressure Rating of 317 / 317L Stainless Steel
| Fitting Schedule/Class | Pipe Size – Pipe Fitting | Fitting Connection Type | Pipe Fitting Material | Max. Pressure |
|---|---|---|---|---|
| Class 150 | 1/2″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 1/2″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 1/2″ | Forged | Forged Stainless Steel 317 | 275 psi |
| Class 150 | 1/2″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 3/4″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 3/4″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 3/4″ | Forged | Forged Stainless Steel 317 | 275 psi |
| Class 150 | 3/4″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 3/4″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 1″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 1″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 1″ | Forged | Forged Stainless Steel 317 | 275 psi |
| Class 150 | 1″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 1″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 1-1/4″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 1-1/4″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 1-1/4″ | Forged | Forged Stainless Steel 317 | 275 psi |
| Class 150 | 1-1/4″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 1-1/4″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 1-1/2″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 1-1/2″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 1-1/2″ | Forged | Forged Stainless Steel 317 | 275 psi |
| Class 150 | 1-1/2″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 1-1/2″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 2″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 2″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 2″ | Forged | Forged Stainless Steel 317 | 275 psi |
| Class 150 | 2″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 2″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 2-1/2″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 2-1/2″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 2-1/2″ | Forged | Forged Stainless Steel 317 | 275 psi |
| Class 150 | 2-1/2″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 2-1/2″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 3″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 3″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 3″ | Forged | Forged Stainless Steel 317 | 275 psi |
| Class 150 | 3″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 4″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 4″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 4″ | Forged | Forged Stainless Steel 317 | 275 psi |
| Class 150 | 4″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 4″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 6″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 6″ | FNPT | Stainless Steel 317 | 150 psi |
| Class 150 | 6″ | Welded | Stainless Steel 317 | 150 psi |
| Class 150 | 6″ | Welded | Stainless Steel 317 | 150 psi |
317/317L SS Forged Fittings Size Weight Chart
| DN-NPT | MAJOR DIAMETER MM | TAPPING DRILL SIZE MM | TPI | PITCH MM |
|---|---|---|---|---|
| 1/16″ | 7.895 | 6.00 | 27 | 0.941 |
| 1/8″ | 10.242 | 8.25 | 27 | 0.941 |
| 1/4″ | 13.616 | 10.70 | 18 | 1.411 |
| 3/8″ | 17.055 | 14.10 | 18 | 1.411 |
| 1/2″ | 21.223 | 17.40 | 14 | 1.814 |
| 3/4″ | 26.568 | 22.60 | 14 | 1.814 |
| 1″ | 33.228 | 28.50 | 11.5 | 2.209 |
| 1¼” | 41.985 | 37.00 | 11.5 | 2.209 |
| 1½” | 48.054 | 43.50 | 11.5 | 2.209 |
| 2″ | 60.092 | 55.00 | 11.5 | 2.209 |
| 2½” | 72.699 | 65.50 | 8 | 3.175 |
| 3″ | 88.608 | 81.50 | 8 | 3.175 |
| 3½” | 101.316 | 94.30 | 8 | 3.175 |
| 4″ | 113.973 | 107.00 | 8 | 3.175 |
| 5″ | 141.300 | 134.384 | 8 | 3.175 |
| 6″ | 168.275 | 161.191 | 8 | 3.175 |
| 8″ | 219.075 | 211.673 | 8 | 3.175 |
| 10″ | 273.050 | 265.311 | 8 | 3.175 |
| 12″ | 323.850 | 315.793 | 8 | 3.175 |
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Application Industry of Stainless Steel 317/317L Forged Fittings
**Stainless Steel 317/317L Forged Fittings** shine in aggressive chemical environments where strong acids and chlorides are a concern. You’ll often see these fittings in pulp and paper mills, flue gas scrubbers, chemical process vessels, marine equipment, and food processing facilities. The SS 317L variant is especially beneficial in welded structures, as its low carbon content minimizes carbide precipitation during welding. The forged design not only boosts mechanical integrity but also enhances pressure resistance, making them ideal for critical applications in high-temperature and corrosive environments where strength, corrosion resistance, and reliability are paramount.
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