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Stainless Steel 316 fittings are made from an austenitic chromium-nickel alloy enhanced with approximately 2 percent to 3 percent molybdenum. Being the second grade of stainless steel used widely all over the world, molybdenum addition gives much greater corrosion resistance and ductility than the 304 grade. The composition is highly designed to withstand chloride ions corrosion and stress cracking, thus these fittings are unavoidable under harsh environments.
Under the ASTM A403 specification, these wrought products are available in several variations, including 304/L and 316/L. The product line is diverse, featuring stainless steel buttweld fittings for welded piping networks and stainless steel forged fittings designed for high-pressure compartments. Structurally, 316 material offers mechanical strength comparable to 304, maintaining a minimum yield strength of 205 MPa and a minimum tensile strength of 515 MPa. These components are typically available in outer diameters ranging from 1/16 inches to 2 inches, with various wall thicknesses and pressure classes to meet specific engineering needs.
Stainless Steel 316 pipe fittings are used across a wide range of applications for different purposes. ASTM A403 WP316 elbows are designed to change the direction of piping systems. When produced using 316 stainless steel, these elbows are especially suitable for marine and chloride-rich environments. They are available in various angles and lengths to meet different installation requirements
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ASTM A403 WP316 Stainless Steel Pipe Fittings Manufacturer and Supplier in India
ASTM A403 WP316 is the standard material of wrought austenitic stainless steel fittings and is used commonly in high temperature and corrosive pressure piping systems. Being a leading manufacturer and supplier of Stainless Steel Pipe Fittings of ASTM A403 WP316 in India we offer a complete diversity of buttweld fittings, which are, elbow, tees, reducers, caps and stub ends.
We comply with international standards, including ASME B16.9 and B16.28, in our manufacturing operation to give a correct dimension and structure. No matter what type of fittings you need seamless or welded (ERW), our products are 100 percent radiography tested and in a variety of schedules. By choosing a reliable Indian supplier, you benefit from competitive pricing, ISO-certified quality control, and the capability to handle custom size requirements for complex engineering projects.
For more information and pricing on 316 Stainless Steel Fittings, please contact us directly.
Table of Contents
- Stainless Steel 316 Fittings Specifications
- 316 Stainless Pipe Fittings Chemical Composition
- Mechanical Properties of 316 Pipe Fittings
- Equivalent Grades of Stainless Steel 316 Pipe Fittings
- Size Chart of 316 Stainless Steel Fittings
- 316 Stainless Fittings Schedule Chart
- ASTM A403 WP316 Fittings HS Code
- SS 316 Pipe Fittings Dimensions
- Types of Stainless Steel 316 Pipe Fittings
- Applications of Stainless Steel 316 Fittings
Stainless Steel 316 Fittings Specifications
We maintain a comprehensive stock of Stainless Steel 316 fittings, ensuring we meet your project needs promptly. Below are the key specifications for our high-quality inventory.
| Category | Specification Details |
|---|---|
| Specifications | ASTM A403/ ASME SA403 |
| Material | WP316 |
| Dimension | ASME/ ANSI B16.9 | ASME B16.28 | MSS-SP-43 | BS1560 | BS4504 | BS10 |
| Thickness of Fittings | SCH 10, SCH20, SCH 30, STD SCH 40, SCH 60, XS, SCH80, SCH100, SCH 120, SCH 140, SCH160, XXS available with NACE MR 01-75 |
| Types | Seamless | Welded | Fabricated |
| Bending Radius | R= 1D, 8D, 3D, 2D, 6D, 5D, 10D |
| Size Range | ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) |
| Size Ranges | Seamless ButtWeld Fitting: From 1/2″ - 10″ Welded ButtWeld Fitting: From 1/2″ - 48″ |
316 Stainless Pipe Fittings Chemical Composition
The superior performance of our SS 316 pipe fittings stems from a meticulously controlled chemical composition.
| C | Si | Mn | P | S | Cr | Ni | Mo | Fe |
|---|---|---|---|---|---|---|---|---|
| 0.08 max | 1.0 max | 2.0 max | 0.045 max | 0.030 max | 16.00 - 18.00 | 11.00 - 14.00 | 2.00 - 3.00 | 67.845 min |
Mechanical Properties of 316 Pipe Fittings
Our fittings are engineered for durability and strength in demanding environments. This table highlights the robust mechanical properties of the 316 stainless steel fittings.
| Melting Point | Density | Yield Strength (0.2%Offset) | Elongation | Tensile Strength |
|---|---|---|---|---|
| 1400 °C (2550 °F) | 8.0 g/cm3 | Psi – 30000 , MPa – 205 | 35 % | Psi – 75000 , MPa – 515 |
Equivalent Grades of Stainless Steel 316 Pipe Fittings
| UNS | WERKSTOFF NR. | JIS | EN | BS | AFNOR |
|---|---|---|---|---|---|
| S31600 | 1.4401 / 1.4436 | SUS 316 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 | 316S31 / 316S33 | Z7CND17‐11‐02 |
Size Chart of 316 Stainless Steel Fittings
Use this size chart for accurate dimensions of our 316 stainless steel fittings.
| Size | O.D | Length (Hight) |
|---|---|---|
| 1/2 | 21.3 | 25 |
| 3/4 | 26.7 | 25 |
| 5 | 141.3 | 76 |
| 38 | 965 | 305 |
| 4 | 114.3 | 64 |
| 28 | 711 | 267 |
| 30 | 762 | 267 |
| 6 | 168.3 | 89 |
| 40 | 1016 | 305 |
| 18 | 457 | 203 |
| 8 | 219.1 | 102 |
| 10 | 273 | 127 |
| 12 | 323.8 | 152 |
| 1.1/4 | 42.2 | 38 |
| 1.1/2 | 48.3 | 38 |
| 2 | 60.3 | 38 |
| 16 | 406.4 | 178 |
| 26 | 660 | 267 |
| 34 | 864 | 237 |
| 20 | 508 | 229 |
| 24 | 610 | 267 |
| 1 | 33.4 | 38 |
| 3 | 88.9 | 51 |
| 3.1/2 | 101.6 | 64 |
| 32 | 813 | 267 |
| 22 | 559 | 254 |
| 36 | 914 | 267 |
| 2.1/2 | 73 | 38 |
| 14 | 355.6 | 165 |
316 Stainless Fittings Schedule Chart
Selecting the correct wall thickness is essential for pressure and flow requirements. Consult our schedule chart to determine the ideal fitting specification for your application.
| NPS | SCH 10S | SCH 40S | SCH 80S |
|---|---|---|---|
| - | SS 316 Equal Tee | A403 WP 316 90 Deg Elbows | Type 316 45 Deg Elbow |
| 20 | 0.13 | 0.08 | 0.05 |
| 65 | 1.41 | 1.40 | 0.99 |
| 25 | 0.28 | 0.15 | 0.14 |
| 80 | 1.77 | 2.20 | 1.50 |
| 8 | 0.03 | 0.03 | 0.03 |
| 10 | 0.05 | 0.03 | 0.04 |
| 15 | 0.09 | 0.08 | 0.05 |
| 50 | 0.85 | 0.70 | 0.59 |
| 100 | 3.46 | 4.47 | 2.81 |
| 300 | 39.46 | 59.42 | 39.69 |
| 200 | 15.65 | 21.54 | 16.56 |
| 150 | 8.07 | 10.89 | 8.16 |
| 40 | 0.68 | 0.40 | 0.29 |
| 250 | 26.46 | 38.56 | 25.86 |
| 90 | 2.67 | 2.83 | 2.00 |
| 32 | 0.49 | 0.26 | 0.23 |
ASTM A403 WP316 Fittings HS Code
For streamlined international logistics and customs clearance, the correct Harmonized System (HS) code for ASTM A403 WP316 Fittings is provided below.
| Property | Value |
|---|---|
| HS Code | 7307 |
SS 316 Pipe Fittings Dimensions
This table provides detailed dimensions, including the Outer Diameter (OD) and various Center-to-End measurements, for common types of our SS 316 Pipe Fittings, ensuring dimensional accuracy for installation.
| Nominal Pipe Size |
Outside Diameter |
Caps | Straight Tees | Straight Crosses | Stub Ends | |||
|---|---|---|---|---|---|---|---|---|
| (inches) | (mm) | (inches) | Length (inches) |
Center to End (inches) |
Center to End (inches) |
Lap Diameter (inches) |
Long Length (inches) |
Short Length (inches) |
| 1/2 | 21.3 | 0.840 | 1 | 1 | – | 1 3/8 | 3 | 2 |
| 3/4 | 26.7 | 1.050 | 1 | 1 1/8 | – | 1 11/16 | 3 | 2 |
| 1 | 33.4 | 1.315 | 1 1/2 | 1 1/2 | 1 1/2 | 2 | 4 | 2 |
| 1 1/4 | 42.2 | 1.660 | 1 1/2 | 1 7/8 | 1 7/8 | 2 1/2 | 4 | 2 |
| 1 1/2 | 48.3 | 1.900 | 1 1/2 | 2 1/4 | 2 1/4 | 2 7/8 | 4 | 2 |
| 2 | 60.3 | 2.375 | 1 1/2 | 2 1/2 | 2 1/2 | 3 5/8 | 6 | 2 1/2 |
| 2 1/2 | 73.0 | 2.875 | 1 1/2 | 3 | 3 | 4 1/8 | 6 | 2 1/2 |
| 3 | 88.9 | 3.500 | 2 | 3 3/8 | 3 3/8 | 5 | 6 | 2 1/2 |
| 3 1/2 | 101.6 | 4.000 | 2 1/2 | 3 3/4 | 3 3/4 | 5 1/2 | 6 | 3 |
| 4 | 114.3 | 4.500 | 2 1/2 | 4 1/8 | 4 1/8 | 6 3/16 | 6 | 3 |
| 5 | 141.3 | 5.563 | 3 | 4 7/8 | 4 7/8 | 7 5/16 | 8 | 3 |
| 6 | 168.3 | 6.625 | 3 1/2 | 5 5/8 | 5 5/8 | 8 1/2 | 8 | 3 1/2 |
| 8 | 219.1 | 8.625 | 4 | 7 | 7 | 10 5/8 | 8 | 4 |
| 10 | 273.1 | 10.750 | 5 | 8 1/2 | 8 1/2 | 12 3/4 | 10 | 5 |
| 12 | 323.9 | 12.750 | 6 | 10 | 10 | 15 | 10 | 6 |
Types of Stainless Steel 316 Pipe Fittings
Our extensive inventory includes a full spectrum of SS 316 pipe fitting types to accommodate any piping configuration. Explore the variety of fittings we supply, engineered for optimal fit and function.
SUS 316 Cross
INOX 316 Nipple
SS 316 Short Radius Pipe Elbows
WNR 1.4401 Long Radius Return Bends
UNS S31600 Reducing Elbow
AISI 316 Stub Ends
316 Stainless Steel Coupling
316 Stainless Steel Unequal Tee
ASTM A403 WP316 Pipe Caps
Stainless Steel 316 Short Radius Return Bends
ASTM A403 Gr Wp316 Concentric Reducer
ASTM A403 Grade WP316 Collar Pipe Fittings
Applications of Stainless Steel 316 Fittings
The use of Stainless Steel 316 fittings is very important in many industries because it is very resistant to corrosion, especially when it comes to chlorides. This renders them essential to very high-performance, critical piping systems.
- Specialty Chemicals
- Power Generation
- Condensers
- Chemical Equipment
- Gas Processing
- Pulp and Paper Industry
- Sea Water Equipment
- Heat Exchangers
- Pharmaceuticals
Related Products of 316 Stainless Steel
Get the latest pricing for Stainless Steel 316 Fittings! Email vishal@solitaire-overseas.com now for an immediate quote and our updated 2025 price guide.
Contact UsFrequently Asked Questions About Stainless Steel 316 Fittings
The primary difference lies in the addition of molybdenum to the 316 alloy. This element grants 316 stainless steel fittings superior resistance to pitting and crevice corrosion, particularly in harsh environments involving chlorides and salt spray (like marine or chemical processing settings).
With minimal maintenance, 316 stainless steel is engineered for long-term service and can last 20 to 50 years or more, depending on the severity of environmental exposure. Its enhanced corrosion resistance makes it the ideal, durable choice for marine and chemical applications.
Stainless steel fittings are essential components used to connect, control, change the direction, and terminate piping systems. They are critical in industries like oil & gas, chemical processing, pharmaceuticals, food & beverage, and water treatment due to their excellent durability, corrosion resistance, and hygienic properties.
Stainless steel 316 fittings are designed for high-temperature resilience, capable of maintaining structural integrity at operating temperatures up to 870°C (1598°F) in intermittent service.
Depending on the pressure and piping requirements, these fittings can be supplied with Butt Weld, Flanged, or Compression end connections to ensure a leak-proof seal.
To meet various industrial standards, these fittings are fabricated using several precision methods, including Forging, Rolling, Stamping, Bending, and Bulging.
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