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Stainless Steel 317L Fittings Manufacturer and Exporter
Stainless Steel 317L Fittings are low carbon austenitic stainless steel pipe fittings that are suitable for high corrosion resistance in corrosive environments and high strength. The highly resistant property of these fittings against pitting and crevice corrosion and their resistance to chemical attack makes them suitable for a range of applications, such as chemical processing, pulp and paper, petrochemical and marine. The inclusion of more molybdenum and nickel in SS 317L increases its corrosion resistance and durability. As the carbon content is low, it becomes very easy to weld them together, and also it doesn't cause any type of formation of carbides when joining them through the welding process. Another important characteristic of stainless steel 317L fittings is that they come with excellent mechanical properties and high tensile strength, which makes them suitable to use in harsh environments. Solitaire Overseas is a well-established manufacturer and supplier of high quality stainless steel 317L fittings, producing reliable products in a variety of sizes, dimensions and specifications to cater to the global industrial requirements.
Table of Content
- Specifications of Stainless Steel 317L Fittings
- Chemical Composition of Stainless Steel 317 Fittings
- Mechanical Properties of SS 317L Fittings
- ASTM A182 F317L Physical Properties
- Equivalent Standards of Stainless Steel 317L Fittings
- Types of Stainless Steel 317L Fittings
- HSN Code of Stainless Steel 317L Fittings
- ASTM A403 WP 317L Fittings Heat Treatments
- DIN 1.4438 SS 317L Fittings Size Chart
- Different Classes of Stainless Steel 317L Flanges
- Applications of Stainless Steel 317L Fittings
- Price List of Stainless Steel 317L Fittings
- Frequently Asked Questions
Specifications of Stainless Steel 317L Fittings
| Parameter | Details |
|---|---|
| Grade | Stainless Steel 317L / UNS S31703 |
| DIN / Werkstoff Nr. | 1.4438 |
| EN Designation | X2CrNiMo18-15-4 |
| Buttweld Standard | ASTM A403 WP317L |
| Forged Standard | ASTM A182 F317L (forged) |
| ASME Equivalent | ASME SA403 WP317L / SA182 F317L |
| Dimension Standard (BW) | ASME B16.9 / MSS SP-43 |
| Dimension Standard (Forged) | ASME B16.11 / MSS SP-79 |
| Forms | Elbow, Tee, Reducer, Cap, Stub End, Lap Joint, Cross, Coupling, Half-Coupling, Union, Plug, Bushing, Insert |
| Size Range (BW) | 1/2" NB to 48" NB |
| Size Range (Forged) | 1/8" NPS to 4" NPS, Class 2000 / 3000 / 6000 / 9000 |
| Schedule Range | SCH 5S / 10S / 40S / 80S / 160 / XXS |
| End Types | Beveled End (BE), Plain End (PE), Threaded End (TE) |
| Test Certificates | EN 10204 3.1 MTC (standard); 3.2 on request |
| Third-Party Inspection | SGS / TÜV / Bureau Veritas / Intertek (on request) |
| PMI Testing | Available on request |
| Surface Finish | Pickled, Annealed, Polished (2B, No.4, Mirror) on request |
| Origin | India / Japan / Europe (to be confirmed at order stage) |
| Delivery | Ready stock for common sizes; custom: 4-8 weeks |
Chemical Composition of Stainless Steel 317 Fittings
| Element | Carbon (C) | Manganese (Mn) | Silicon (Si) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Iron (Fe) |
|---|---|---|---|---|---|---|---|---|---|
| Weight % | 0.035% max | 2.0% max | 1.0% max | 0.040% max | 0.03% max | 18.0% - 20.0% | 11.0% - 15.0% | 3.0% - 4.0% | Balance |
Mechanical Properties of SS 317L Fittings
| Property | Seamless | Welded | Forged |
|---|---|---|---|
| Tensile Strength (min) | 515 MPa / 75 ksi | 515 MPa / 75 ksi | 515 MPa / 75 ksi |
| Yield Strength 0.2% (min) | 170 MPa / 25 ksi | 170 MPa / 25 ksi | 170 MPa / 25 ksi |
| Elongation (min) | 35% | 35% | 35% |
| Hardness (max) | 217 HB / 96 HRB | 217 HB / 96 HRB | 217 HB / 96 HRB |
ASTM A182 F317L Physical Properties
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Modulus of Elasticity | 200 GPa | 29.0 times 10^6 psi |
| Specific Heat | 502 J/kg-°K (0 to 100°C) | 0.12 BTU/lb-°F (32°F to 212°F) |
| Thermal Conductivity | 14 W/(m·K) | 8.1 BTU/(hr · ft · °F) |
Equivalent Standards of Stainless Steel 317L Fittings
| Standard | JIS | UNS | Werkstoff Nr. | EN Designation |
|---|---|---|---|---|
| SS 317 | SUS 317 | S31700 | 1.4449 | - |
| SS 317L | SUS 317L | S31703 | 1.4438 | X2CrNiMo18-15-4 |
Types of Stainless Steel 317L Fittings
HSN Code of Stainless Steel 317L Fittings
| Grade | HSN Code |
|---|---|
| Stainless Steel 317L Pipe Fittings | 7307 29 00 |
ASTM A403 WP 317L Fittings Heat Treatments
| Element | Material Heating (Forging) | Annealing Temperature |
|---|---|---|
| SS 317L Pipe Fittings | 1149°C - 1260°C | 1010°C - 1121°C |
DIN 1.4438 SS 317L Fittings Size Chart
| Nominal Size (Inch) | O.D. (Inch) | O.D. (mm) | Tees/Crosses Center to End (Inch) | Stub End Short Length (Inch) | Stub End Long Length (Inch) | Stub End Lap Dia (Inch) | Caps Length (Inch) |
|---|---|---|---|---|---|---|---|
| 1/2" | 0.840 | 21.3 | 1 | 2 | 3 | 1 3/8 | 1 |
| 3/4" | 1.050 | 26.7 | 1 1/8 | 2 | 3 | 1 11/16 | 1 |
| 1" | 1.315 | 33.4 | 1 1/2 | 2 | 4 | 2 | 1 1/2 |
| 1 1/4" | 1.660 | 42.2 | 1 7/8 | 2 | 4 | 2 1/2 | 1 1/2 |
| 1 1/2" | 1.900 | 48.3 | 2 1/4 | 2 | 4 | 2 7/8 | 1 1/2 |
| 2" | 2.375 | 60.3 | 2 1/2 | 2 1/2 | 6 | 3 5/8 | 1 1/2 |
| 2 1/2" | 2.875 | 73.0 | 3 | 2 1/2 | 6 | 4 1/8 | 1 1/2 |
| 3" | 3.500 | 88.9 | 3 3/8 | 2 1/2 | 6 | 5 | 2 |
| 3 1/2" | 4.000 | 101.6 | 3 3/4 | 3 | 6 | 5 1/2 | 2 1/2 |
| 4" | 4.500 | 114.3 | 4 1/8 | 3 | 6 | 6 3/16 | 2 1/2 |
| 5" | 5.563 | 141.3 | 4 7/8 | 3 | 8 | 7 5/16 | 3 |
| 6" | 6.625 | 168.3 | 5 5/8 | 3 1/2 | 8 | 8 1/2 | 3 1/2 |
| 8" | 8.625 | 219.1 | 7 | 4 | 8 | 10 5/8 | 4 |
| 10" | 10.750 | 273.1 | 8 1/2 | 5 | 10 | 12 3/4 | 5 |
| 12" | 12.750 | 323.9 | 10 | 6 | 10 | 15 | 6 |
Different Classes of Stainless Steel 317L Flanges
| Class | Description | Manufacturing Method | NDT Requirements |
|---|---|---|---|
| S | Seamless | Manufactured without a weld | Standard visual/dimensional |
| W | Welded | Fabricated from plate or pipe by welding | Radiographic Testing (RT) of all welds |
| WX | Welded, RT & UT | Fabricated by welding | RT plus Ultrasonic Testing (UT) of all welds |
| WU | Welded, UT | Fabricated by welding | Ultrasonic Testing (UT) of all welds |
Applications of Stainless Steel 317L Fittings
- Chemical Equipment
- Heat Exchangers
- Paper & Pulp Industry
- Power Generation
- Gas Processing
- Pharmaceutical Equipment
- Sea Water Equipment
- Condensers
- Gas Processing
Price List of Stainless Steel 317L Fittings
| Sizes (mm/inch) | Price (USD) |
|---|---|
| 80 x 65 / 80 | $11.90 |
| 125 x 80 / 80 | $4.90 |
| 250 x 80 / 80 | $17.14 |
| 600 x 500 / 12.7 | $25.17 |
Note: Prices are approximate for standard sizes and may vary based on size, thickness, quantity, finish, and market rates. ContactSolitaire Overseas for the latest pricing and exact quotation.
Frequently Asked Questions
317L stainless steel is a low-carbon austenitic stainless steel known for excellent corrosion resistance and high strength.
317L contains more molybdenum and nickel than 316L, giving it better corrosion resistance in harsh environments.
Yes, Stainless Steel 317 is an austenitic stainless steel grade with high corrosion and heat resistance.
SS 317L is specified for highly corrosive environments such as chemical processing, marine, petrochemical, and pulp & paper industries.
Molybdenum is added to improve resistance against pitting, crevice corrosion, and chemical attack.
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