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Stainless Steel 304L Fittings Manufacturer and Exporter
Stainless Steel 304L Fittings are an austenitic type of stainless steel fitting that is more resistant to corrosion and has greater weldability. The UNS S30403 fittings have less carbon compared to other fittings, which makes them less prone to carbide precipitation when being welded and hence less likely to undergo intergranular corrosion. The fittings are good for oxidation resistance up to 925°C on continuous service, and up to 870°C on intermittent service. Stainless Steel 304L Socket Weld Fittings and Buttweld Fittings also offer good machining properties and high temperature strength. Standard components like SS 304L Tees, Reducers, and Long Radius Elbows are adopted by various industries for effective fluid flow management, including chemical processing, petrochemical plants, food processing, breweries, construction, and aerospace. Solitaire Overseas offers the highest quality Stainless Steel 304L Fittings, made to International standards, for reliable use in industrial piping applications.
Table of Content
- Specification of Stainless Steel 304L Fittings
- Chemical Composition of A403 WP304L buttweld Pipe Fittings
- Mechanical Properties of SS 304L Fittings (UNS S30403 / ASTM A403 WP304L)
- Equivalent Grades of Stainless Steel 304L Fittings
- Stainless Steel 304L Pipe Fittings Types
- Size Chart of SS 304L Fittings
- Thickness Chart of SS 304L Buttweld Fittings (ASME B16.9) - Dimensions in Inches
- SS 304L 90° Long Radius Elbow Weight Chart (ASTM A403 WP304L)
- Application Industries for Stainless Steel 304L Fittings
- Frequently Asked Questions
Specification of Stainless Steel 304L Fittings
| Parameter | Details |
|---|---|
| Material Grade | Stainless Steel 304L / UNS S30403 |
| International Standards | DIN 1.4306 / EN X2CrNi19-11 / AFNOR Z3CN18-10 |
| Buttweld Standard | ASTM A403 WP304L |
| Forged Standard | ASTM A182 F304L |
| ASME Equivalent | ASME SA403 WP304L / SA182 F304L |
| Dimensional Specs | Buttweld: ASME B16.9, MSS SP-43 Forged: ASME B16.11, MSS SP-79, MSS SP-83, MSS SP-95 |
| Forms Available | Elbow (90°/45°), Tee (Equal/Reducing), Reducer (Concentric/Eccentric), Cap, Stub End, Lap Joint, Cross, Coupling, Union, Plug, Bushing |
| Size Range | Buttweld: 1/2" NB to 48" NB Forged: 1/8" NPS to 4" NPS |
| Pressure / Schedule | BW: SCH 5S, 10S, 40S, 80S, 160, XXS Forged: Class 2000, 3000, 6000, 9000 |
| Connection Ends | Beveled End (BE), Plain End (PE), Threaded (NPT/BSP), Socket Weld (SW) |
| Quality Control | PMI Testing, Pickling & Annealing, 100% Radiography (on request) |
| Certifications | EN 10204 3.1 MTC, 3.2 Third-party (SGS, TUV, BV, Intertek) |
| Delivery Time | Stock items: Immediate; Custom fabrication: 4-8 weeks |
Chemical Composition of A403 WP304L buttweld Pipe Fittings
| Element | Nickel (Ni) | Manganese (Mn) | Chromium (Cr) | Phosphorus (P) | Silicon (Si) | Carbon (C) | Sulfur (S) | Molybdenum (Mo) | Nitrogen (N) |
|---|---|---|---|---|---|---|---|---|---|
| Weight % | 8 - 13 | 2.0 max | 18 - 20 | 0.045 max | 1.0 max | 0.030 max | 0.03 max | - | - |
Mechanical Properties of SS 304L Fittings (UNS S30403 / ASTM A403 WP304L)
| Property | Value |
|---|---|
| Melting Point | 1400 °C (2550 °F) |
| Density | 8.0 g/cm³ |
| Tensile Strength (Rm) | 75,000 Psi (515 MPa) |
| Yield Strength (0.2% Offset) | 30,000 Psi (205 MPa) |
| Elongation (A) | 35% |
Equivalent Grades of Stainless Steel 304L Fittings
| Grade | EN Designation | UNS | JIS | GOST | BS | Werkstoff Nr. | AFNOR |
|---|---|---|---|---|---|---|---|
| SS 304L | X2CrNi18-9 / X2CrNi19-11 | S30403 | SUS 304L | 03X18H11 | 304S11 | 1.4306 / 1.4307 | Z3CN18-10 |
Stainless Steel 304L Pipe Fittings Types
304L SS Reducing tee
304L SS Socket weld fittings
304L Stainless Steel Fittings
304L Stainless Steel Short Radius Elbow
A403 WP304L buttweld pipe fittings
ASME SA403 WP304L concentric reducer
ASTM A403 Grade WP304L Eccentric Reducer
DIN 1.4306 Stainless Steel Long Radius Elbow
SS 304L tee
Stainless Steel 304L Equal Cross
Stainless Steel 304L Stub End
UNS S30403 90 Degree Elbow
Size Chart of SS 304L Fittings
| Size (in) | Size (mm) | OD (in) | Caps (L) | Tee (C to E) | Cross (C to E) | Stub End Lap Dia. | Stub End Long (L) | Stub End Short (L) |
|---|---|---|---|---|---|---|---|---|
| 1/2 | 15 | 0.840 | 1 | 1 | 1 | 1 3/8 | 3 | 2 |
| 3/4 | 20 | 1.050 | 1 | 1 1/8 | - | 1 11/16 | 3 | 2 |
| 1 | 25 | 1.315 | 1 1/2 | 1 1/2 | 1 1/2 | 2 | 4 | 2 |
| 1 1/4 | 32 | 1.660 | 1 1/2 | 1 7/8 | 1 7/8 | 2 1/2 | 4 | 2 |
| 1 1/2 | 40 | 1.900 | 1 1/2 | 2 1/4 | 2 1/4 | 2 7/8 | 4 | 2 |
| 2 | 50 | 2.375 | 1 1/2 | 2 1/2 | 2 1/2 | 3 5/8 | 6 | 2 1/2 |
| 2 1/2 | 65 | 2.875 | 1 1/2 | 3 | 3 | 4 1/8 | 6 | 2 1/2 |
| 3 | 80 | 3.500 | 2 | 3 3/8 | 3 3/8 | 5 | 6 | 2 1/2 |
| 3 1/2 | 90 | 4.000 | 2 1/2 | 3 3/4 | 3 3/4 | 5 1/2 | 6 | 3 |
| 4 | 100 | 4.500 | 2 1/2 | 4 1/8 | 4 1/8 | 6 3/16 | 6 | 3 |
| 5 | 125 | 5.563 | 3 | 4 7/8 | 4 7/8 | 7 5/16 | 8 | 3 |
| 6 | 150 | 6.625 | 3 1/2 | 5 5/8 | 5 5/8 | 8 1/2 | 8 | 3 1/2 |
| 8 | 200 | 8.625 | 4 | 7 | 7 | 10 5/8 | 8 | 4 |
| 10 | 250 | 10.750 | 5 | 8 1/2 | 8 1/2 | 12 3/4 | 10 | 5 |
| 12 | 300 | 12.750 | 6 | 10 | 10 | 15 | 10 | 6 |
Thickness Chart of SS 304L Buttweld Fittings (ASME B16.9) - Dimensions in Inches
| NPS | 90° Elbow (LR) | 90° Elbow (3R) | 90° Elbow (SR) | 45° Elbow (LR) | 180° Bend (LR) | 180° Bend (3R) | 180° Bend (SR) | Tee (Center to End) | Caps (Length) | Stub End Lap Dia. |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 1.50 | - | - | 0.62 | 3.00 | - | - | 1.00 | 1.00 | 1.38 |
| 3/4 | 1.50 | - | - | 0.75 | 3.00 | - | - | 1.12 | 1.00 | 1.69 |
| 1 | 1.50 | - | 1.00 | 0.88 | 3.00 | - | 2.00 | 1.50 | 1.50 | 2.00 |
| 1 1/4 | 1.88 | - | 1.25 | 1.00 | 3.75 | - | 2.50 | 1.88 | 1.50 | 2.50 |
| 1 1/2 | 2.25 | - | 1.50 | 1.12 | 4.50 | - | 3.00 | 2.25 | 1.50 | 2.88 |
| 2 | 3.00 | 6.00 | 2.00 | 1.38 | 6.00 | 12.00 | 4.00 | 2.50 | 1.50 | 3.62 |
| 2 1/2 | 3.75 | 7.50 | 2.50 | 1.75 | 7.50 | 15.00 | 5.00 | 3.00 | 1.50 | 4.12 |
| 3 | 4.50 | 9.00 | 3.00 | 2.00 | 9.00 | 18.00 | 6.00 | 3.38 | 2.00 | 5.00 |
| 4 | 6.00 | 12.00 | 4.00 | 2.50 | 12.00 | 24.00 | 8.00 | 4.12 | 2.50 | 6.19 |
| 6 | 9.00 | 18.00 | 6.00 | 3.75 | 18.00 | 36.00 | 12.00 | 5.62 | 3.50 | 8.50 |
| 8 | 12.00 | 24.00 | 8.00 | 5.00 | 24.00 | 48.00 | 16.00 | 7.00 | 4.00 | 10.62 |
| 10 | 15.00 | 30.00 | 10.00 | 6.25 | 30.00 | 60.00 | 20.00 | 8.50 | 5.00 | 12.75 |
| 12 | 18.00 | 36.00 | 12.00 | 7.50 | 36.00 | 72.00 | 24.00 | 10.00 | 6.00 | 15.00 |
| 14 | 21.00 | 42.00 | 14.00 | 8.75 | 42.00 | 84.00 | 28.00 | 11.00 | 6.50 | 16.25 |
| 16 | 24.00 | 48.00 | 16.00 | 10.00 | 48.00 | 96.00 | 32.00 | 12.00 | 7.00 | 18.50 |
| 18 | 27.00 | 54.00 | 18.00 | 11.25 | 54.00 | 108.00 | 36.00 | 13.50 | 8.00 | 21.00 |
| 20 | 30.00 | 60.00 | 20.00 | 12.50 | 60.00 | 120.00 | 40.00 | 15.00 | 9.00 | 23.00 |
| 24 | 36.00 | 72.00 | 24.00 | 15.00 | 72.00 | 144.00 | 48.00 | 17.00 | 10.50 | 27.25 |
| 36 | 54.00 | 108.00 | - | 22.25 | - | - | - | 26.50 | 10.50 | - |
| 48 | 72.00 | 144.00 | - | 29.88 | - | - | - | 35.00 | 13.50 | - |
SS 304L 90° Long Radius Elbow Weight Chart (ASTM A403 WP304L)
| NPS (inches) | Weight (LBS) | Weight (Kilogram) |
|---|---|---|
| 1/2 | 0.25 | 0.11 |
| 3/4 | 0.25 | 0.11 |
| 1 | 0.50 | 0.23 |
| 1 1/4 | 0.90 | 0.41 |
| 1 1/2 | 1.15 | 0.52 |
| 2 | 2.20 | 1.00 |
| 2 1/2 | 4.00 | 1.81 |
| 3 | 6.50 | 2.95 |
| 3 1/2 | 8.35 | 3.79 |
| 4 | 13.50 | 6.12 |
| 5 | 22.00 | 9.98 |
| 6 | 35.00 | 15.88 |
| 8 | 71.00 | 32.21 |
| 10 | 107.00 | 48.53 |
| 12 | 160.00 | 72.57 |
| 14 | 205.00 | 92.99 |
| 16 | 276.00 | 125.19 |
| 18 | 340.00 | 154.22 |
| 20 | 420.00 | 190.51 |
| 22 | 520.00 | 235.87 |
| 24 | 600.00 | 272.16 |
| 26 | 729.00 | 330.67 |
| 30 | 975.00 | 442.25 |
| 36 | 1412.00 | 640.47 |
Application Industries for Stainless Steel 304L Fittings
- Chemical Processing Plants
- Petrochemical Industries
- Oil and Gas Pipelines
- Food Processing Industry
- Dairy and Beverage Processing Plants
- Pharmaceutical Manufacturing Units
- Water Treatment and Desalination Plants
- Pulp and Paper Industries
Need SS 304L Fittings? Solitaire Overseas maintains ready stock of ASTM A403 WP304L buttweld and ASTM A182 F304L forged fittings with EN 10204 3.1 MTC. Send your size, schedule, grade, quantity, and inspection requirement for a quote within 24 hours.
Request a QuoteFrequently Asked Questions
304L stainless steel is used in chemical processing, food processing, pharmaceuticals, piping systems, and welded industrial applications.
304L is better for welding applications because its lower carbon content reduces the risk of corrosion after welding.
The L in 304L stands for Low Carbon.
The price of SS 304L generally ranges from Rs. 220 to Rs. 350 per kg depending on size, form, and market conditions.
Yes, SS 304L fittings have excellent weldability and can usually be welded without filler material.