Solitaire Fittings is a trusted 316L Buttweld Pipe Fittings Manufacturer in India, supplying premium quality products to global industries. We offer a complete range of Stainless Steel 316L Buttweld Fittings that are designed to provide superior strength, excellent corrosion resistance, and long service life in demanding environments. Our product range includes ASTM A403 WP316L Pipe Fittings such as elbows, tees, reducers, caps, and bends, all manufactured according to ASME B16.9 Buttweld Pipe Fittings standards. Whether you need UNS S31600 Pipe Elbow, ANSI B16.9 SS 316Ti Pipe Cap Manufacturer in India, or DIN 1.4401 LR Elbow, Solitaire Fittings is your one-stop solution for reliable and durable piping components.
What are Stainless Steel 316l Buttweld Fittings?
316L Stainless Steel Buttweld Fittings are pipe fittings used to change the direction of flow, connect pipes of different sizes, or close pipe systems. The “L” in 316L Stainless Steel Pipe Fittings stands for “low carbon.” This makes them ideal for applications where welding is required, as they minimize the risk of carbide precipitation and intergranular corrosion. These fittings are widely used in chemical plants, oil & gas pipelines, food processing, pharmaceutical industries, and marine environments because of their outstanding corrosion resistance and durability.
Key Features of 316L Buttweld Pipe Fittings
- Corrosion Resistance – Excellent resistance to acids, alkalis, chlorides, and seawater.
- High Strength – Retains strength even at high temperatures.
- Weldability – Low carbon content prevents carbide precipitation during welding.
- Durability – Long service life with minimal maintenance.
- Versatility – Available in multiple shapes and sizes such as elbows, tees, reducers, and caps.
Types of Stainless Steel 316L Buttweld Fittings
At Solitaire Fittings, we manufacture and export a wide variety of 316L Pipe Fittings to suit diverse industrial needs:
➤ 316L Stainless Steel Elbows (UNS S31600 Pipe Elbow, DIN 1.4401 LR Elbow)
- Used to change the direction of flow in piping systems. Available in long radius (LR) and short radius (SR) options.
➤ 316L Stainless Steel Reducers
- Connects pipes of different diameters while maintaining smooth fluid flow. Available in concentric and eccentric designs.
➤ 316L Stainless Steel Tees
- Divides or combines flow in piping networks. Offered in equal tee and reducing tee types.
➤ 316L Stainless Steel Pipe Caps (ANSI B16.9 SS 316Ti Pipe Cap Manufacturer in India)
- Used to close pipe ends and protect them from damage or contamination.
➤ 316L Stainless Steel Bends
- Smoothly changes the direction of flow with minimal pressure loss.
Applications of 316L Stainless Steel Pipe Fittings
Because of their resistance to corrosion, strength, and weldability, 316L Buttweld Pipe Fittings are widely used in industries such as:
- Oil & Gas Pipelines – Offshore and onshore projects.
- Chemical Processing Plants – Resistance to acids and solvents
- Food & Beverage Industry – Hygienic and easy to clean
- Pharmaceutical Industry – Non-contaminating and durable
- Marine Industry – Excellent performance in seawater conditions
- Power Generation – High strength at elevated temperatures
ASTM A403 WP316L PIPE FITTINGS – Standards and Specifications
Our ASTM A403 WP316L Pipe Fittings comply with international quality standards to ensure safety and reliability.
Specifications- Standard: ASTM A403 / ASME SA403
- Grade: 316L (Low Carbon), 316Ti (Stabilized Grade)
- Dimensions: ASME B16.9, MSS-SP-43, ANSI B16.28
- Equivalent Material Codes: UNS S31603, DIN 1.4404
Schedule and Size Chart – Stainless Steel 316L Buttweld Fittings
| Nominal Pipe Size (NPS) | Outside Diameter (OD) (mm) | Wall Thickness – Schedule 10S (mm) | Wall Thickness – Schedule 40S (mm) | Wall Thickness – Schedule 80S (mm) |
|---|---|---|---|---|
| ½” (15 NB) | 21.3 | 2.11 | 2.77 | 3.73 |
| ¾” (20 NB) | 26.7 | 2.11 | 2.87 | 3.91 |
| 1” (25 NB) | 33.4 | 2.77 | 3.38 | 4.55 |
| 1 ½” (40 NB) | 48.3 | 2.77 | 3.68 | 5.08 |
| 2” (50 NB) | 60.3 | 2.77 | 3.91 | 5.54 |
| 3” (80 NB) | 88.9 | 3.05 | 5.49 | 7.62 |
| 4” (100 NB) | 114.3 | 3.05 | 6.02 | 8.56 |
| 6” (150 NB) | 168.3 | 3.40 | 7.11 | 10.97 |
| 8” (200 NB) | 219.1 | 3.76 | 8.18 | 12.70 |
| 10” (250 NB) | 273.1 | 4.19 | 9.27 | 12.70 |
| 12” (300 NB) | 323.9 | 4.57 | 9.53 | 12.70 |
Mechanical Properties of SS 316L Buttweld Fittings
| Property | Value (Typical) |
|---|---|
| Tensile Strength | 485 MPa (min) |
| Yield Strength (0.2% Proof) | 170 MPa (min) |
| Elongation (in 50mm) | 40% (min) |
| Hardness (Brinell) | 217 HB (max) |
| Impact Strength | Excellent toughness |
Chemical Composition – Stainless Steel 316L
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Silicon (Si) | 0.75 max |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.00 – 3.00 |
| Nitrogen (N) | 0.10 max |
| Iron (Fe) | Balance |
Physical Properties – Stainless Steel UNS S31600 Reducer
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1375 – 1400 °C |
| Thermal Conductivity | 16.2 W/m·K (at 100 °C) |
| Specific Heat Capacity | 500 J/kg·K (0–100 °C) |
| Electrical Resistivity | 0.072 × 10⁻⁶ Ω·m |
| Modulus of Elasticity | 193 GPa |
| Magnetic Permeability | Non-magnetic (in annealed condition) |
Why Choose Solitaire Fittings for 316L Buttweld Pipe Fittings?
- Trusted Manufacturer in India – With years of expertise, Solitaire Fittings is a leading 316L Buttweld Pipe Fittings Manufacturer in India.
- Global Exports – We supply to more than 70 countries worldwide.
- Custom Manufacturing – Tailored solutions as per client drawings and project requirements.
- Quality Assurance – 100% tested and certified to international standards.
- Competitive Pricing – Premium quality products at affordable rates.
Request Your Stainless Steel 316L Buttweld Fittings Quote Today!
