Amardeep Steel Center is a premier manufacturer, supplier, and exporter of high-performance 317/317L Pipe Fittings. Engineered for some of the most demanding industrial environments, our fittings offer a superior level of corrosion resistance that standard grades simply cannot match. We produce a full range of Stainless Steel 317 Pipe Fittings and Stainless Steel 317L Pipe Fittings, all manufactured to strict international standards like ASTM A403.
For applications involving aggressive chemicals, high chloride concentrations, and acidic compounds, our fittings provide the robust, long-lasting connections your critical systems require. We are committed to delivering excellence and reliability in every product we supply.
What Are 317/317L Pipe Fittings?
317/317L Pipe Fittings are specialized components used to connect, control, and branch piping systems in severely corrosive environments. What sets them apart from other stainless steel grades is their higher molybdenum content (over 3%). This enrichment gives them significantly better general and localized corrosion resistance than both the 304 and 316 grades, especially against pitting and crevice corrosion caused by chlorides.
The two grades in this family offer distinct advantages:
- Stainless Steel 317 Pipe Fittings (SS 317 Pipe Fittings): This is the standard high-molybdenum grade, providing excellent strength and superior corrosion resistance. It is often considered a step up from 316L for more aggressive conditions.
- Stainless Steel 317L Pipe Fittings (SS 317L Pipe Fittings): The 'L' signifies a lower carbon content. This is the most commonly used variant because its low carbon level prevents sensitization during welding. This means it maintains its corrosion resistance at the weld seams, making 317L stainless steel pipe fittings the ideal choice for fabricated equipment that cannot be post-weld heat-treated.
These products are manufactured under specifications like ASTM A403, with the designation ASTM A403 WP317L fittings confirming that they meet the stringent chemical and mechanical requirements for pressure piping in harsh service.
Table of Contents
- 317/317L Pipe Fittings Specifications
- Chemical Composition & Mechanical Properties of 316/316L Pipe Fittings
- Mechanical Properties of 316/316L Pipe Fittings
- Heat Treatment & Tolerances of 316/316L Pipe Fittings
- Dimensional Tolerances of 316/316L Pipe Fittings
- Types & Forms of 316/316L Pipe Fittings
- Applications & Industries Served of 316/316L Pipe Fittings
- Why Choose Amardeep Steel for 316/316L Pipe Fittings?
- Related Products
- Get a Competitive Price
317/317L Pipe Fittings Specifications
At Amardeep Steel Center, every one of our 317 stainless steel fittings is manufactured to precise specifications. This ensures full compliance with global engineering codes and guarantees seamless integration into your piping systems.
|
Specification |
Details |
|---|---|
|
Standard |
ASTM A403 / ASME SA403 |
|
Grades |
WP317, WP317L |
|
Types |
Seamless / Welded / Fabricated |
|
Buttweld Fittings Size |
1/2" to 48" |
|
Forged Fittings Size |
1/4” to 4” |
|
Bending Radius |
R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
|
Wall Thickness / Schedule |
Sch 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS |
|
Pressure Class (Forged) |
2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
|
Dimensions |
ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, MSS SP-75 |
Chemical Composition & Mechanical Properties of 317/317L Pipe Fittings
The elite performance of our molybdenum-rich SS 317L fittings comes from their specific chemical formula and robust mechanical properties. We verify these characteristics through rigorous testing for every production run.
Chemical Composition (wt %)
The higher percentage of molybdenum is the key to this grade's superior corrosion resistance.
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
Mo |
|---|---|---|---|---|---|---|---|---|
|
SS 317 (WP317) |
0.08 max |
2.00 max |
0.75 max |
0.045 max |
0.030 max |
18.0-20.0 |
11.0-15.0 |
3.00-4.00 |
|
SS 317L (WP317L) |
0.03 max |
2.00 max |
0.75 max |
0.045 max |
0.030 max |
18.0-20.0 |
11.0-15.0 |
3.00-4.00 |
Mechanical Properties of 317/317L Pipe Fittings
These properties demonstrate the material's ability to handle operational pressures and stresses without failure.
|
Grade |
Tensile Strength (min) |
Yield Strength (min) |
Elongation in 2" (min) |
Hardness (max) |
|---|---|---|---|---|
|
ksi (MPa) |
ksi (MPa) |
% |
Rockwell B |
|
|
WP317/317L |
75 (515) |
30 (205) |
35 |
95 |
Heat Treatment & Tolerances of 317/317L Pipe Fittings
The final quality and reliability of a pipe fitting are heavily influenced by two critical manufacturing stages: heat treatment and dimensional control.
Heat Treatment Requirements of 317/317L Pipe Fittings
All our 317/317L Pipe Fittings are supplied in a fully solution-annealed condition. This heat treatment process, which involves heating the fittings to a range of 1040-1125°C (1900-2055°F) followed by rapid cooling, is essential. It relieves internal stresses from the forming process, dissolves any harmful chromium carbides, and restores the material to its maximum state of corrosion resistance and toughness.
Dimensional Tolerances of 317/317L Pipe Fittings
For a piping system to be leak-proof and efficient, every component must fit perfectly. We manufacture our fittings to the strict dimensional tolerances of ASME B16.9 (for buttweld fittings) and ASME B16.11 (for forged fittings). This ensures that every angle, diameter, and end preparation is precise, guaranteeing a seamless installation and reliable, long-term service.
Types & Forms of 317/317L Pipe Fittings
As a leading manufacturer, Amardeep Steel Center produces a comprehensive range of 317 Stainless Steel Pipe Fittings to cover every possible configuration in your system design.
- Elbows (45°, 90°, 180°): For making smooth directional changes in pipelines.
- Tees (Equal & Reducing): For creating 90-degree branches from a main line.
- Reducers (Concentric & Eccentric): For connecting pipes of two different diameters.
- Caps: To provide a secure and permanent seal at the end of a pipe.
- Stub Ends: Used with lap joint flanges to create a cost-effective flanged connection.
- Pipe Bends: Custom-fabricated bends with larger radii for more gradual turns.
- Couplings, Nipples, and Crosses: A complete suite of components for any connection need.
Applications & Industries Served of 317/317L Pipe Fittings
The exceptional corrosion resistance of SS 317L Pipe Fittings makes them essential for industries facing the most aggressive conditions:
- Pulp and Paper Mills: Handling corrosive bleaching solutions and processing fluids.
- Chemical and Petrochemical Processing: For systems containing acids, chlorides, and sulfuric acid compounds.
- Flue Gas Desulfurization (FGD) Systems: Resisting corrosion in scrubbers, dampers, and stacks.
- Textile Industry: For equipment that uses corrosive dyes and chemicals.
- Food Processing: In equipment that handles acidic foods and brines.
- Pharmaceuticals: For processing equipment where purity and corrosion resistance are paramount.
Why Choose Amardeep Steel for 317/317L Pipe Fittings?
When you choose Amardeep Steel, you are selecting a supplier that is fully committed to quality, reliability, and customer satisfaction. Here’s why we are the right partner for you:
- Manufacturing Excellence: Our in-house manufacturing gives us complete control over the production process, from raw material to the finished product. This guarantees consistent wall thickness, a superior surface finish, and adherence to the strictest quality standards.
- Global Exports: As a trusted exporter, we have a proven track record of serving customers in major international markets, including the USA, Canada, UAE, Saudi Arabia, Europe, and Southeast Asia. Our expert logistics team ensures timely and secure delivery.
- Fast Turnaround: We maintain a large stock of standard 317/317L Pipe Fittings, ready for immediate shipment. This allows us to meet urgent requirements and keep your projects on track.
- Certified Quality: Quality is not just a promise; it's our guarantee. We are an ISO 9001:2015 certified company, and all our fittings are supplied with a Mill Test Certificate (MTC) as per EN 10204 3.1. We also facilitate third-party inspections from reputable agencies like TUV, DNV, and Lloyd’s.
- Technical Support: Our team of expert metallurgists and engineers is available 24/7 to provide technical assistance. Whether you need guidance on material selection or application-specific designs, we are here to help you find the perfect solution.
Related Products
- Stainless Steel 317 Butt weld Fittings
- Stainless Steel 317L Butt weld Fittings
- Stainless Steel 317 Forged Fittings
- Stainless Steel 317L Forged Fittings
Get Your 317/317L Pipe Fittings Price
Ready to order your 317/317L Pipe Fittings? Get a competitive price from an industry leader you can depend on. Contact our sales team today for a fast, no-obligation quote and let us supply the high-performance fittings your project needs.
Frequently Asked Questions (FAQ's)
1. When should I use 317L instead of 316L?
You should choose 317L when your application involves more severe corrosive conditions, especially those with high chloride concentrations or strong acids. The higher molybdenum content in 317L stainless steel pipe fittings provides superior resistance to pitting and crevice corrosion compared to 316L.
2. Is 317L good for welding?
Yes, 317L is excellent for welding. The 'L' grade's low carbon content prevents sensitization at the weld, ensuring that the corrosion resistance of the heat-affected zone is maintained. This makes it the preferred choice for fabricated components.
3. Are these fittings suitable for high-temperature service?
While 317L is primarily known for its corrosion resistance at ambient and moderate temperatures, it can be used in some elevated temperature applications. However, for continuous service at very high temperatures, grades like 310S or other heat-resistant alloys are generally recommended.
4. What certifications do you provide with the fittings?
We provide a Mill Test Certificate (MTC) according to EN 10204 3.1 with every order. This certificate provides full traceability and documents the material's precise chemical composition and mechanical properties, guaranteeing it meets the specified standards.
5. How quickly can I receive my order?
For standard sizes and types in our inventory, we can typically dispatch your order within 24 to 48 hours. For custom or large-volume orders, we will provide a specific delivery schedule with your quote. Our efficient manufacturing processes ensure we can meet even tight project deadlines.
