| Specifications | ASME SA403 / ASTM A403 |
|---|---|
| Dimension Standard | ASME/ANSI B16.9, MSS-SP-43/SP-79, ASME B16.28, ASME B16.25, ASME B16.49 |
| Standard Size Range | 1/2” NB TO 48” NB. (Fabricated, Seamless and 100% X-Ray Welded) |
| Manufacturing Type | Fabricated / Seamless / Welded / ERW |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D, or Custom |
| Wall Thickness / Schedule | SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS / 3mm – 40mm |
| End Connection | Butt Weld |
| Melting Point | 1400-1450°C for (WP317) |
| Outside Diameter (OD) | Seamless / Buttweld Fitting ( 1/2″～48″), ERW / Welded / Fabricated Buttweld Fitting (1/2″～48″) |
| Value Added Services | Hot Dipped Galvanizing, Electro Polish, Sand Blasting, Epoxy & FBE Coating, Threading, Soldering |
| Other Standards | MSS SP-75, ISO, SNSI, JIS, DIN, GB, DIN2617, JISB2311, JISB2312, JISB2313 / T12459GB / T13401, SH3408, SH3409HG / T21635HG / T21631SY / T05010 |
| Material Test Certificates (MTC) | As per EN 10204 3.2 and EN 10204 3.1, Certifying NACE MR0175, NACE MR0103 |
| Materials | AISI 317 |
| Two Halve / Two Joint Buttweld Fittings Size | 6″ to 48″ |
| Manufacturing Specification | ASME: ANSI B16.9, ANSI B16.28, ASME B16.25, MSS-SP-43, DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011, EN: EN10253-1, EN10253-2 |
| A403 SS Seamless Fittings | Size: 15 NB to 300 NB | Sch.& Swg: Sch.5 to Sch.XXs |
| A403 SS Welded Fittings | Size: 15 NB to 600 NB | Sch.& Swg: Sch.5 to Sch.80s |
Meet Fittings, Chennai, India, is a renowned manufacturer and supplier of *Stainless Steel 317 / 317L Buttweld Fittings*, which provides high-quality piping solutions for highly corrosive and high-temperature applications. The buttweld fittings are designed using high-alloy austenitic stainless steel, which has superior resistance to chemical attack, particularly by sulfurous, acetic, and phosphoric acids. Meet Fittings supplies a full line of fittings consisting of elbows, tees, reducers, and caps in 317 and low-carbon 317L grades. Through precision manufacturing, stringent quality control, and a customer-focused philosophy, the company supplies major industries like chemical processing, pulp & paper, petrochemicals, and marine applications.
Table of Contents
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Stainless Steel 317 / 317L Buttweld Fittings Specification
Stainless steel 317/317L buttweld fittings are made of austenitic stainless steel, consisting of 18-20% chromium, 11-15% nickel, 2-3% molybdenum, and trace amounts of carbon (0.08% maximum for 317L) Thus these substances Increase corrosion resistance, especially to chloride and sulfuric ho acids which is used for manufacturing. Technical properties include tensile strength of 520-720 MPa, yield strength of 205 MPa (for 317L) and elongation of 40%. 317L, with low carbon content, provides excellent woldability and reduced carbide precipitation, making it ideal for hot and corrosive environments
Stainless Steel 317 / 317L Buttweld Fittings Chemical Composition
Stainless Steel 317 / 317L Buttweld Fittings Mechanical Properties
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Largest Stainless Steel 317 / 317L Buttweld Fittings Supplier in Chennai, India
Stainless Steel 317 / 317L Buttweld Fittings consist of high chromium content (18–20%), nickel (11–15%), and molybdenum (3–4%), exhibiting higher corrosion resistance than SS 316. The 317L material contains a maximum 0.03% carbon content for enhanced weldability and reducing intergranular corrosion risk. The fittings have good mechanical strength, with tensile strength of approximately 515 MPa and yield strength of about 205 MPa. Their higher molybdenum level offers superior resistance to pitting, crevice corrosion, and chemical attack in corrosive environments.
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Stainless Steel 317 / 317L Buttweld Fittings Equivalent Grade
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| 317 | 1.4449 | S31700 | SUS 317 | – | – | – | – |
Why Choose Stainless Stainless Steel 317 / 317L Buttweld Fittings from Meet Fittings?
Stainless Steel 317 Buttweld Fittings from Meet Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
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Stainless steel 317/317L Buttweld Fittings provide exceptional corrosion resistance, especially in high acid and chloride environments. The low carbon content of 317L prevents carbide precipitation, enhances weldability and reduces the risk of intergranular corrosion. These materials retain high strength and durability at elevated temperatures, making them suitable for a variety of industrial applications. Excellent resistance to pitting, crevice corrosion and stress corrosion cracking ensures long-term performance. In addition they are highly versatile, and can withstand extreme weather conditions, making them ideal for the chemical, fuel and pharmaceutical industries
Types of Stainless Steel 317 / 317L Buttweld Fittings
Stainless Steel 317 / 317L Buttweld Fittings Dimensions Chart
| Nominal Pipe Size (inches) | Outside Diameter | 45°Elbows | 90° Elbows | 180° Returns | ||||
|---|---|---|---|---|---|---|---|---|
| Long Radius | Long Radius | Short Radius | Long Radius | |||||
| (mm) | (inches) | Center to Face (inches) | Radius (inches) | Center to Face (inches) | Center to Face (inches) | Center to Center (inches) | Back to face (inches) | |
| 1 | 33.4 | 1.315 | 7/8 | 1 1/2 | 1 | 3 | 2 3/16 | |
| 1/2 | 21.3 | 0.840 | 5/8 | 1 1/2 | – | 2 | 1 7/8 | |
| 3/4 | 26.7 | 1.050 | 7/16 | 1 1/8 | – | 2 1/4 | 1 11/16 | |
| 1 1/4 | 42.2 | 1.660 | 1 | 1 7/8 | 1 1/4 | 3 3/4 | 2 3/4 | |
| 1 1/2 | 48.3 | 1.900 | 1 1/8 | 3 | 2 1/4 | 1 1/2 | 4 1/2 | 3 1/4 |
| 2 | 60.3 | 2.375 | 1 3/8 | 4 | 3 | 2 | 6 | 4 3/16 |
| 2 1/2 | 73.0 | 2.875 | 1 3/4 | 5 | 3 3/4 | 2 1/2 | 7 1/2 | 5 3/16 |
| 3 | 88.9 | 3.500 | 2 | 6 | 4 1/2 | 3 | 9 | 6 1/4 |
| 3 1/2 | 101.6 | 4.000 | 2 1/4 | 7 | 5 1/4 | 3 1/2 | 10 1/2 | 7 1/4 |
| 4 | 114.3 | 4.500 | 2 1/2 | 8 | 6 | 4 | 12 | 8 1/4 |
| 5 | 141.3 | 5.563 | 3 1/8 | 10 | 7 1/2 | 5 | 15 | 10 5/16 |
| 6 | 168.3 | 6.625 | 3 3/4 | 12 | 9 | 6 | 18 | 12 5/16 |
| 8 | 219.1 | 8.625 | 5 | 12 | 12 | 8 | 24 | 16 5/16 |
| 10 | 273.1 | 10.750 | 6 1/4 | 15 | 15 | 10 | 30 | 20 3/8 |
| 12 | 323.9 | 12.750 | 7 1/2 | 18 | 18 | 12 | 36 | 24 3/8 |
Are Custom Sizes Available for Stainless Steel 317 / 317L Buttweld Fittings?
Yes, custom sizes for Stainless Steel 317 / 317L Buttweld 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.
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Application Industry of Stainless Steel 317 / 317L Buttweld Fittings
Stainless Steel 317 / 317L Buttweld Fittings are well-suited for application in systems under exposure to strong chemicals, high chlorides, and high temperatures. Typical applications are chemical manufacturing units, pulp and paper mills, textile dye equipment, petrochemical plants, food processing equipment, and marine exposure. The low carbon variant 317L is particularly well suited for welded structures since it avoids sensitization and continues to provide corrosion resistance following welding. These fittings provide leak-tight, high-strength joints, long life, and improved performance in aggressive operating conditions, making them a safe choice for mission-critical piping assets.
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