Solitaire Fittings is one of the most trusted suppliers and manufacturers of Stainless Steel 304 Butt weld Fittings, delivering precision-engineered fittings to industries worldwide. Known for their excellent corrosion resistance, durability, and smooth finishing, these fittings are widely used in piping systems across oil & gas, chemical, food processing, and power generation industries. As a reputed Manufacturer of ASTM A403 WP 304 Pipe Elbow, we provide fittings that comply with international standards like ASME B16.9 and ASTM A403, ensuring long-lasting performance even in challenging environments.
What Are Stainless Steel 304 Butt weld Fittings?
Stainless Steel 304 Butt weld Fittings are components used to connect pipes, change flow direction, or alter pipe sizes in a piping system. They are made from Stainless Steel 304, which is one of the most commonly used stainless steel grades.
- Grade 304 Stainless Steel (UNS S30400) contains 18% chromium and 8% nickel, offering excellent corrosion resistance, strength, and weldability.
- These fittings are designed for >butt weld connections where the pipe and fitting ends are welded together to create a strong, leak-proof joint.
Common examples include:
- 304 Stainless Steel 90 Degree Elbow – used to change the direction of flow.
- SS 304 3D Bend – used for smooth, gradual directional changes.
- UNS S30400 SS Reducer – used to connect pipes of different sizes.
- Stainless Steel 304 Grade Equal Tee – used to branch a pipeline into two directions.
Key Standards and Grades
- ASTM A403 WP 304 – Specification for wrought austenitic stainless steel fittings.
- ASME B16.9 Stainless Steel 304 Short Radius Elbow – Dimensional standard ensuring compatibility across industries.
- UNS S30400 – Standard designation for 304 stainless steel.
Types of Stainless 304/304L Pipe Fittings
At Solitaire Fittings, we manufacture and stock a wide range of Stainless 304/304L Pipe Fittings to meet diverse industrial needs:
➤ Elbows
- 304 Stainless Steel 90 Degree Elbow – for right-angle turns in pipelines.
- Manufacturer of ASTM A403 WP 304 Pipe Elbow – standard long radius and short radius elbows.
- ASME B16.9 Stainless Steel 304 Short Radius Elbow – compact elbows for space-limited installations.
➤ Bends
- SS 304 3D Bend – smoother flow with minimal pressure loss.
- Available in 3D, 5D, and custom radii.
➤ Tees
- Stainless Steel 304 Grade Equal Tee – equal-size branch connections.
- Reducing tees also available for connecting different pipe sizes.
➤ Reducers
- UNS S30400 SS Reducer – concentric and eccentric reducers for pipeline size adjustments.
➤ Caps and End Closures
- Pipe caps are used to block pipeline ends.
➤ Stub Ends and Collars
- Used in lap joint flange connections.
Features of Stainless Steel 304 Pipe Fittings
- Corrosion Resistance: Excellent resistance to rust and chemical attack in most environments.
- Strength & Durability: Withstands high pressure and temperature.
- Hygienic Properties: Smooth surface finish suitable for food and pharmaceutical industries.
- Easy Weldability & Fabrication: Compatible with standard welding techniques.
- Cost-Effective: Long service life reduces maintenance and replacement costs.
Applications of Stainless Steel 304 Butt weld Fittings
Our Stainless Steel 304 Pipe Fittings are used in multiple industries where safety, hygiene, and durability are critical:
- Food & Beverage Industry: For sanitary pipelines in breweries, dairies, and bottling plants.
- Oil & Gas: For transporting crude oil, natural gas, and petroleum products.
- Chemical Processing: Withstands aggressive chemicals and acids.
- Power Plants: High-pressure steam and water pipelines.
- Pharmaceuticals: Clean and hygienic processing systems.
- Water Treatment: Potable water supply and wastewater management.
Schedule and Size Chart – Stainless Steel 304 Butt weld Fittings
| Nominal Pipe Size (NPS) | Outside Diameter (OD) (mm) | Wall Thickness – SCH 10S (mm) | Wall Thickness – SCH 40S (mm) | Wall Thickness – SCH 80S (mm) |
|---|---|---|---|---|
| ½” (15 NB) | 21.3 | 2.11 | 2.77 | 3.73 |
| 1” (25 NB) | 33.4 | 2.77 | 3.38 | 4.55 |
| 2” (50 NB) | 60.3 | 2.77 | 3.91 | 5.54 |
| 3” (80 NB) | 88.9 | 3.05 | 5.49 | 7.62 |
| 6” (150 NB) | 168.3 | 4.19 | 7.11 | 10.97 |
| 10” (250 NB) | 273.0 | 4.78 | 9.27 | 12.70 |
| 16” (400 NB) | 406.4 | 6.35 | 12.70 | 19.05 |
| 24” (600 NB) | 610.0 | 6.35 | 12.70 | 25.40 |
Mechanical Properties – Stainless Steel 304 Butt weld Fittings
| Property | Value (Typical) |
|---|---|
| Tensile Strength (MPa) | 515 – 750 |
| Yield Strength (0.2% Proof) MPa | ≥ 205 |
| Elongation (% in 50mm) | ≥ 40% |
| Hardness (Brinell, HB) | ≤ 201 |
| Modulus of Elasticity (GPa) | ~193 |
| Impact Strength (Charpy V-Notch) | Good (down to -196°C) |
Chemical Composition – Stainless Steel 304 Butt Weld Fittings
| Element | % Composition (Typical) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 11.0 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
Physical Properties – Stainless Steel 304 Butt Weld Fittings
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Range | 1400 – 1450 °C |
| Thermal Conductivity | 16.2 W/m·K (at 100 °C) |
| Specific Heat Capacity | 500 J/kg·K (at 0–100 °C) |
| Electrical Resistivity | 0.072 ×10⁻⁶ Ω·m |
| Coefficient of Thermal Expansion | 17.2 µm/m·°C (0–100 °C) |
| Magnetic Properties | Essentially Non-Magnetic |
Technical Specifications of Stainless Steel 304 Butt Weld Fittings
| Property | Specification |
|---|---|
| Grade | Stainless Steel 304 / 304L (UNS S30400 / S30403) |
| Standards | ASTM A403, ASME B16.9, MSS SP-43 |
| Type | Elbow, Tee, Reducer, Cap, Stub End, Bend |
| Size Range | ½” NB to 48” NB (custom sizes available) |
| Pressure Rating | SCH 10S to SCH XXS |
| Surface Finish | Mill finish, polished, custom finishes available |
| Testing & Certification | 100% radiography, PMI, IGC test, EN 10204 3.1 / 3.2 |
Advantages of Choosing Solitaire Fittings Stainless 304/304L Pipe Fittings
- Wide Product Range: From 304 Stainless Steel 90 Degree Elbow to UNS S30400 SS Reducer, we stock everything.
- Global Exporter: Solitaire Fittings is a trusted exporter to more than 80 countries.
- High-Quality Standards: All fittings undergo strict testing and inspection.
- Competitive Pricing: Cost-effective solutions without compromising on quality.
- Customization: Tailor-made fittings for your specific application.
- Quick Delivery: Large inventory ensures prompt supply for urgent requirements.
Why Stainless Steel 304 Butt weld Fittings Are the Preferred Choice
- Versatile Material: 304 stainless steel is the most widely used stainless grade due to its balance of strength, corrosion resistance, and affordability.
- Reliability: Leak-proof welded joints improve safety in critical industries.
- Sustainability: Stainless steel is 100% recyclable, making it an eco-friendly choice.
📝 Let’s Find Your Fitting Solution
With decades of experience, Solitaire Fittings has become one of the most reliable Manufacturers and Stockists of Stainless Steel 304 Butt weld Fittings. We are committed to delivering high-quality products with full traceability, global certifications, and unmatched customer support. Whether you need ASME B16.9 Stainless Steel 304 Short Radius Elbow, SS 304 3D Bend, or Stainless Steel 304 Grade Equal Tee, we have the expertise and stock to meet your project needs.
Request Your Stainless Steel 304 Buttweld Fittings Quote Today!
