Stainless Steel 316 Buttweld Fittings are corrosion resistant pipe fittings made as per ASTM A403 WP316 requirements and are widely used in chemical processing, maritime, petrochemical, pharmaceutical, food processing and oil & gas sectors. These fittings include elbows, tees, reducers, caps, stub ends and bends available in seamless and welded construction with exceptional resistance to chlorides and high-temperature conditions.
Table of Contents
- ➤ Introduction to SS 316 Buttweld Fittings
- ➤ Advantages of Stainless Steel 316 Buttweld Fittings
- ➤ Types of Stainless Steel 316 Buttweld Fittings
- ➤ Stainless Steel 316 Buttweld Fittings Specifications
- ➤ Chemical Composition of ASTM A403 WP316
- ➤ Mechanical Properties of SS 316 Buttweld Fittings
- ➤ SS 316 Buttweld Fittings Dimensions Chart
- ➤ SS 316 Buttweld Fittings Weight Chart
- ➤ Applications of SS 316 Buttweld Pipe Fittings
- ➤ Why Choose Us for SS 316 Buttweld Fittings?
Introduction to SS 316 Buttweld Fittings
We are manufacturing and supplying best quality SS 316 Buttweld Fittings that are used in industries where the requirement is for higher corrosion resistance, strength and uniform performance in tough operational environments. We are involved in offering wide variety of Stainless Steel 316 Buttweld Fittings. Our Buttweld Fittings are manufactured using quality raw material and are tested as per international standards to guarantee dimensional correctness and extended service life.
Grade 316 stainless steel contains molybdenum. The inclusion of molybdenum greatly increases corrosion resistance, especially in chloride environments, compared to traditional stainless steel grades. 316 SS buttweld pipe fittings are ideal for maritime applications, chemical processing plants, desalination plants, pharmaceuticals, heat exchangers, and offshore systems.
Our product range includes:
- Long Radius Elbows
- Short Radius Elbows
- Equal & Reducing Tees
- Concentric Reducers
- Eccentric Reducers
- Stub Ends
- Pipe Caps
- Pipe Bends
- Crosses
We offer both seamless and welded fittings in multiple pressure classes, schedules, and dimensions according to ASME, ASTM, ANSI, DIN, and MSS standards.
Advantages of Stainless Steel 316 Buttweld Fittingss
- Excellent Corrosion Resistance – The molybdenum content enhances resistance against chloride environments, seawater exposure, and chemical corrosion.
- High Strength and Durability – These fittings maintain structural integrity at elevated temperatures and pressure conditions.
- Superior Weldability – Stainless steel 316 buttweld fittings can be easily welded using conventional fabrication methods.
- Hygienic Surface Finish – Ideal for pharmaceutical, dairy, and food processing applications where cleanliness is essential.
- Cost-Effective – The durability and low maintenance requirements reduce overall operational costs.
Types of Stainless Steel 316 Buttweld Fittings
➤ SS 316 Long Radius Elbow
One of the most popular applications of the 316 stainless steel schedule 80 long radius elbow is to change the direction of pipe while reducing pressure drop and turbulence. These elbows are used in high flow pipes where smooth passage of the fluid is of essential importance.
Available Angles:- 45 Degree Elbow
- 90 Degree Elbow
- 180 Degree Return Bend
➤ SS 316 Concentric Reducer
Our reducers are designed for smooth transition between different pipe diameters while maintaining process efficiency.
Popular Product:SS 316 Seamless Concentric Reducer Dimensions are available according to ASME B16.9 standards in SCH 10, SCH 40, and SCH 80 wall thickness.
➤ SS 316 Pipe Tee
Pipe tees are used for branch connections in piping systems and are available in equal and reducing configurations.
Types:- Equal Tee
- Reducing Tee
- Barred Tee
➤ SS 316 Stub Ends
Stub ends are used with lap joint flanges for systems requiring frequent dismantling and maintenance.
Advantages:- Easy alignment
- Cost-effective flange assembly
- Excellent corrosion resistance
➤ SS 316 Pipe Caps
Pipe caps are used for sealing pipeline ends and preventing leakage in industrial systems.
ASTM A403 310S Stainless Steel Buttweld Fittings – Standards and Specifications
Our fittings are manufactured in accordance with ASTM A403 310S Stainless Steel Buttweld Fittings standard, ensuring international quality compliance.
Specifications- Standard: ASTM A403 / ASME SA403
- Grade: 310S (UNS S31008 / UNS S31000)
- Dimensions: ASME/ANSI B16.9, B16.28, MSS-SP-43
- Size Range: ½” NB to 48” NB
- Thickness: Sch 10 to Sch XXS
- Types: Seamless, Welded, Fabricated
Stainless Steel 316 Buttweld Fittings Specifications
| Specification | Details |
|---|---|
| Material Grade | ASTM A403 WP316 |
| Product Type | Buttweld Pipe Fittings |
| Size Range | ½” NB to 48” NB |
| Wall Thickness | SCH 5 to SCH XXS |
| Standards | ASME B16.9, MSS SP-43, ASME B16.28 |
| Type | Seamless / Welded / Fabricated |
| Form | Elbow, Tee, Reducer, Cap, Stub End, Bend |
| End Connection | Butt Weld |
| Schedules | SCH 10, SCH 20, SCH 40, SCH 60, SCH 80, SCH 160, SCH XXS |
| Form | Elbows, Reducers, Tees, Caps, Crosses, Stub Ends |
Mechanical Properties of SS 316 Buttweld Fittings
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa min |
| Yield Strength | 205 MPa min |
| Elongation | 35% min |
| Hardness | 95 HRB max |
| Density | 8.0 g/cm³ |
| Melting Point | 1375°C – 1400°C |
Chemical Composition of ASTM A403 WP316
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.03 max |
| Silicon (Si) | 1.0 max |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Iron (Fe) | Balance |
SS 316 Buttweld Fittings Dimensions Chart
| NPS | Outside Diameter (mm) | Wall Thickness SCH 40 (mm) | Center to End LR Elbow (mm) |
|---|---|---|---|
| 1/2” | 21.3 | 2.77 | 38 |
| 1” | 33.4 | 3.38 | 57 |
| 2” | 60.3 | 3.91 | 95 |
| 4” | 114.3 | 6.02 | 152 |
| 6” | 168.3 | 7.11 | 229 |
| 8” | 219.1 | 8.18 | 305 |
SS 316 Buttweld Fittings Dimensions Chart
| Size | Approx Weight (kg) |
|---|---|
| 1” Elbow | 0.22 |
| 2” Elbow | 0.85 |
| 4” Elbow | 3.20 |
| 6” Elbow | 7.90 |
| 8” Elbow | 14.60 |
Applications of SS 316 Buttweld Pipe Fittings
Our 316 SS buttweld pipe fittings are widely used in:
- Oil & Gas Industries
- Petrochemical Plants
- Pharmaceutical Industries
- Marine & Offshore Applications
- Heat Exchangers
- Food Processing Industries
- Chemical Processing Units
- Water Treatment Plants
- Power Generation Facilities
- Pulp & Paper Industries
Alloy Steel WP1 Buttweld Pipe Fittings
In addition to stainless steel products, we also supply:
- Alloy Steel Grade WP1 Seamless Buttweld Pipe Fittings
- ASTM A234 Alloy Steel Gr WP1 Pipe Fitting Dealer products
- Alloy Steel WP1 Reducing Tee
- Alloy Steel Gr WP1 Buttweld Elbow
- ASTM A234 Alloy Steel Reducer
These fittings are widely used in high-temperature and pressure piping systems for power plants and refineries.
Why Choose Us for SS 316 Buttweld Fittings?
- Wide Product Availability: We maintain ready stock in multiple sizes and schedules for urgent industrial requirements.
- International Quality Standards: Our fittings comply with ASTM, ASME, ANSI, DIN, and MSS specifications.
- Competitive Pricing: We offer cost-effective solutions without compromising quality.
- Technical Support: Our experienced team helps customers select the right piping components for critical applications.
- Global Export Experience: We have extensive experience supplying industrial piping products to worldwide markets.
Related Stainless Steel Fittings
- Stainless Steel 304 Buttweld Fittings
- Stainless Steel 321 Pipe Fittings
- Stainless Steel 321H Pipe Fittings
- Stainless Steel 310H Pipe Fittings
- Stainless Steel 317L Buttweld Fittings
- Stainless Steel 321 Buttweld Fittings
- Stainless Steel 321H Buttweld Fittings
Frequently Asked Questions
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