317L Pipe Fittings
Stainless Steel 317L (UNS S31700) is a molybdenum-bearing austenitic stainless steel, well-regarded for its enhanced corrosion resistance and durability in highly corrosive environments. With 18–20% chromium and 11–15% nickel content, 317L surpasses the corrosion resistance of standard 316 stainless steel, offering superior protection in applications where pitting and crevice corrosion are concerns.
Comprehensive Range of 317L Pipe Fittings
A full range of 317L stainless steel fittings is available, including reducers, elbows, tees, crosses, end caps, stub ends, and pipe bends. All products meet ASTM A-403, ANSI B16.9/16.28, and MSS SP-43 standards, and include Welding Bevel Standards as per ANSI B 16.25. Standard and custom sizes are available, accommodating bending radii from 1D to 10D for various project specifications.
The selection includes ex-stock options for 317L fittings, 317L flanges, and 317L pipe bends, allowing for quick and efficient delivery. Large-diameter, radiography-tested SS 317L elbows, reducers, tees, and custom fabricated pipes are also available for substantial industrial installations.
Why Choose Stainless Steel 317L?
Stainless Steel 317L is a premium-grade, molybdenum-enhanced stainless steel, offering excellent resistance to pitting, crevice corrosion, and intergranular corrosion. It is particularly well-suited for industries with aggressive chemical environments, such as pulp and paper, petrochemical, and chemical processing.
Key Properties of Stainless Steel 317L Pipe Fittings, SS 317L Flanges
- High Corrosion Resistance: Excellent in environments prone to pitting and crevice corrosion.
- Reduced Intergranular Precipitation: Allows for reliable performance after welding.
- Superior Durability in Tough Conditions: Increased resistance compared to 316-grade stainless steel.
Applications of 317L Stainless Steel Fittings and Flanges
- Pulp and paper manufacturing plants
- Chemical processing equipment
- Petrochemical processing equipment
- Textile machinery and equipment
- Vessels and tanks
SS 317L Pipe Fittings Production Range
| Specification | ASTM A182 / A403 & ASME SA182 / SA403 |
| Type | Seamless / Welded / Fabricated |
| Variants | 317L |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Range | ½”NB to 48”NB in Sch 10s, 40s, 80s, 160s, XXS. |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
Buttweld Stainless Steel 317L Pipe Fittings Seamless/ Welded 100% Radiography Tested
Seamless/Welded 100% Radiography Tested
| Products | Size | |
| SS 317L Elbows – Long Radius | SS 317L Stub Ends | Sizes 1/2″ – 48″ |
| SS 317L Elbows – Short Radius | SS 317L Crosses | |
| SS 317L Reducing Elbows | SS 317L Reducing Crosses | |
| SS 317L 45° Elbows | SS 317L 180° LR Return Bends | |
| SS 317L Tees | SS 317L 180° SR Return Bends | |
| SS 317L Fabricated Tees | SS 317L Pipe Bends / Piggable Bends | |
| SS 317L Reducers | SS 317L Couplings | |
| SS 317L Concentric Reducers | SS 317L Pipe Nipples | |
| SS 317L Eccentric Reducers | SS 317L Forged/Plate Cut Rings | |
| SS 317L 3D Elbow | SS 317L End Caps | |
| SS 317L 5D Elbow | SS 317L Forged / Plate Circles | |
High Pressure Forged 317L Pipe Fittings Threaded and Socket Weld Pipe Fittings
| Products | Size | |
| SS 317L 90° Elbows | SS 317L Couplings | Sizes 1/8″ – 4″ Pressure Ratings – |
| SS 317L 45° Elbows | SS 317L Reducers | |
| SS 317L Street Elbows | SS 317L Inserts | |
| SS 317L Tees | SS 317L Caps | |
| SS 317L Crosses | SS 317L Unions | |
Stainless Steel 317L Flanges Forged and Plate Flanges
| Specification | ASTM A182 / A240 & ASME SA182 / SA240 |
| Grade | 317L |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/8” to 36″ |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Product | Size | |
| SS 317L Slip-On Flanges | SS 317L Threaded Flanges | 1/8″ – 36″ Raised Face or Flat Face |
| SS 317L Weld Neck Flanges | SS 317L Socket Weld Flanges | |
| SS 317L Blind Flanges | SS 317L Reducing Flanges | |
| SS 317L Lap Joint Flanges | SS 317L Plate Flanges | |
Marking & Packing
Each fitting is carefully packaged in sturdy wooden cases for export, with markings indicating the grade, lot number, size, and degree for easy identification. Custom markings can be added upon request to meet specific project needs.
Quality Assurance
All 317L fittings and flanges undergo comprehensive inspection at every production stage to ensure they meet ASTM, ASME, MSS, DIN, EN, and JIS standards. Certified inspection agencies are available on request to verify material and dimensional conformity.
Test Certificates Provided:
- Manufacturer Test Certificate (EN 10204 / 3.1B)
- Raw Materials Certificate
- 100% Radiography Test Report
- Third-Party Inspection Report (available upon request)
For high-quality 317L stainless steel pipe fittings customized to your project needs, contact our team today. Our experts are ready to help you select the right fittings to ensure durability, safety, and superior performance across all applications.
FAQ's
Products
Industry We Serve
- Oil & Gas industries
- Chemical process industries
- Pump and valve in high pressure component
- Food industries
- Pulp and paper industry
- Aerospace industry
- Power plant
- Mechanical component
- Sugar industry
- Cement industry