At Solitaire Fittings, we are one of the leading manufacturers, exporters, and suppliers of Stainless Steel 904L Buttweld Fittings. Our high-quality fittings are trusted across industries like oil & gas, petrochemicals, power plants, marine engineering, pharmaceuticals, and more. Known for their exceptional corrosion resistance and strength, 904L Stainless Steel Buttweld Pipe Fittings are widely used in applications that demand durability in harsh environments.
What Are Stainless Steel 904L Buttweld Fittings?
Stainless Steel 904L Buttweld Fittings are piping components made from 904L grade austenitic stainless steel. The 904L alloy contains high amounts of nickel, chromium, and molybdenum, with an addition of copper to improve resistance against strong reducing acids like sulfuric acid.
Buttweld fittings are designed to join two or more pipes by welding, ensuring a stronger and leak-proof connection compared to threaded or socket weld fittings. These fittings come in different shapes like elbows, tees, reducers, bends, caps, and stub ends.
The use of ASTM A403 WP904L fittings and ASTM B366 WP904L Elbows ensures compliance with international standards, making them suitable for high-performance piping systems.
Key Features of 904L Buttweld Fittings
- Excellent Corrosion Resistance: With high chromium, nickel, and molybdenum content, 904L resists pitting and crevice corrosion in chloride environments.
- High Strength and Durability: Designed for demanding conditions in chemical and marine industries.
- Non-Magnetic Properties: 904L remains non-magnetic even after cold working.
- Superior Weldability: Can be welded easily using standard techniques, ensuring leak-proof piping.
- Long Service Life: Resistant to stress corrosion cracking and strong acids like sulfuric, phosphoric, and acetic acid.
Types of Stainless Steel 904L Buttweld Fittings
At Solitaire Fittings, we supply all types of 904L buttweld fittings, manufactured as per ASME B16.9, ASME SA366, DIN 2609, and ASTM standards.
➤ ASME B16.9 Alloy 904L Elbow
Elbows are used to change the direction of piping. We manufacture ASTM B366 WP904L Elbows in 45°, 90°, and 180° bends. As a leading 904L SS Buttweld Elbow Supplier in India, we provide both seamless and welded types.
➤ Stainless Steel 904L Tee
A tee fitting allows one pipeline to branch into two. Our 904L Stainless Steel Tee is available in equal and reducing configurations, ensuring smooth flow distribution.
➤ Reducers
Reducers are used to connect pipes of different diameters. Our range includes concentric and eccentric reducers made from UNS N08904 Seamless Fittings.
➤ DIN 1.4539 Stub End
Stub ends are used with lap joint flanges to allow easy dismantling. Our DIN 1.4539 Stub Ends are manufactured with precision for long life and performance.
➤ ASME SA366 SS 904L Pipe Bend
Pipe bends are used to change the pipeline’s direction over a long radius. As an ASME SA366 SS 904L Pipe Bend Exporter, we deliver high-quality bends for critical applications.
➤ Caps and Crosses
End caps seal the pipeline, while crosses connect four pipes together. Both are available in 904L stainless steel for durability.
Applications of Stainless Steel 904L Buttweld Fittings
Because of their exceptional chemical composition and properties, 904L Stainless Steel Fittings are widely used in industries such as:
- Oil & Gas Industry – Offshore drilling rigs, subsea pipelines
- Chemical Industry – Sulfuric and phosphoric acid handling equipment
- Marine Industry – Shipbuilding, desalination plants, seawater equipment
- Pharmaceuticals – Sterile process systems requiring high corrosion resistance
- Power Generation – Heat exchangers, condensers, boilers
- Pulp & Paper Industry – Bleaching equipment and process piping
Stainless Steel 904L Buttweld Fittings – Standards and Grades
- Standards: ASME B16.9, MSS-SP-43, DIN 2609, ANSI B16.28
- Specifications: ASTM A403 WP904L, ASTM B366 WP904L, ASME SA366
- Material Grade: UNS N08904 / DIN 1.4539
Schedule and Size Chart – Stainless Steel 904L Butt weld Fittings
| Nominal Pipe Size (NPS) | Outside Diameter (OD) (mm) | Wall Thickness – SCH 10S (mm) | Wall Thickness – SCH 20S (mm) | Wall Thickness – SCH 40S (mm) | Wall Thickness – SCH 80S (mm) |
|---|---|---|---|---|---|
| ½” (15 NB) | 21.3 | 2.11 | 2.77 | 2.77 | 3.73 |
| ¾” (20 NB) | 26.7 | 2.11 | 2.87 | 2.87 | 3.91 |
| 1” (25 NB) | 33.4 | 2.77 | 3.38 | 3.38 | 4.55 |
| 1¼” (32 NB) | 42.2 | 2.77 | 3.56 | 3.56 | 4.85 |
| 1½” (40 NB) | 48.3 | 2.77 | 3.68 | 3.68 | 5.08 |
| 2” (50 NB) | 60.3 | 2.77 | 3.91 | 3.91 | 5.54 |
| 3” (80 NB) | 88.9 | 3.05 | 5.49 | 5.49 | 7.62 |
| 4” (100 NB) | 114.3 | 3.05 | 6.02 | 6.02 | 8.56 |
| 6” (150 NB) | 168.3 | 3.40 | 7.11 | 7.11 | 10.97 |
| 8” (200 NB) | 219.1 | 3.76 | 8.18 | 8.18 | 12.70 |
| 10” (250 NB) | 273.0 | 4.19 | 9.27 | 9.27 | 15.09 |
| 12” (300 NB) | 323.8 | 4.57 | 9.53 | 9.53 | 17.48 |
| 14” (350 NB) | 355.6 | 4.78 | 9.53 | 9.53 | 19.05 |
| 16” (400 NB) | 406.4 | 4.78 | 9.53 | 9.53 | 21.44 |
| 18” (450 NB) | 457.2 | 4.78 | 9.53 | 9.53 | 23.83 |
| 20” (500 NB) | 508.0 | 5.54 | 9.53 | 9.53 | 26.19 |
| 24” (600 NB) | 610.0 | 6.35 | 9.53 | 9.53 | 30.96 |
Mechanical Properties of SS 904l Buttweld Fittings
| Property | Value |
|---|---|
| Tensile Strength | 490 MPa (min) |
| Yield Strength | 220 MPa (min) |
| Elongation | 35% (min) |
| Hardness | 70 HRB (max) |
Chemical Composition – SS 904L (UNS N08904 / DIN 1.4539)
| Element | Content % |
|---|---|
| Carbon (C) | 0.02 max |
| Manganese (Mn) | 2.0 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.035 max |
| Silicon (Si) | 1.0 max |
| Chromium (Cr) | 19.0 – 23.0 |
| Nickel (Ni) | 23.0 – 28.0 |
| Molybdenum (Mo) | 4.0 – 5.0 |
| Iron (Fe) | Balance |
Physical Properties – Stainless Steel UNS S90400 Pipe Elbow
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Range | 1350 – 1400 °C |
| Thermal Conductivity (at 100 °C) | 13.9 W/m·K (at 100 °C) |
| Electrical Resistivity | 0.98 µΩ·m |
| Modulus of Elasticity | 200 GPa |
Specifications Chart – Stainless Steel 904L Buttweld Fittings
| Specifications | Details |
|---|---|
| Product | Stainless Steel 904L Buttweld Fittings |
| Material Grade | SS 904L (UNS N08904 / DIN 1.4539) |
| Standards | ASME B16.9, ANSI B16.28, MSS-SP-43, DIN 2609 |
| Specifications | ASTM A403 WP904L, ASTM B366 WP904L, ASME SA366 |
| Fittings Type | Elbow (90°, 45°, 180°), Tee (Equal & Reducing), Reducer (Concentric & Eccentric), Stub End, Bend, Cap, Cross |
| Manufacturing Types | Seamless, Welded, Fabricated |
| Size Range | ½” NB to 48” NB |
| Schedules | SCH 10, SCH 20, SCH 40, SCH 60, SCH 80, SCH 120, SCH 160, SCH XXS |
| End Connections | Beveled End, Plain End, Butt-weld End |
| Surface Finish | Pickled, Polished, Sand Blasted, or Custom |
| Applications | Oil & Gas, Petrochemical, Marine, Power Generation, Chemical Processing, Pharmaceuticals, Desalination Plants |
Stainless Steel 904L Buttweld Fittings – Benefits
- Excellent resistance to stress corrosion cracking
- Withstands highly acidic environments
- Smooth internal surface for better flow efficiency
- Stronger joints due to buttweld connections
- Cost-effective in the long run because of reduced maintenance
Why Choose Solitaire Fittings for Stainless Steel 904L Buttweld Fittings?
- DIN2609 Stainless Steel 904L Pipe Fittings Manufacturer with global presence.
- State-of-the-art manufacturing facilities with strict quality testing.
- Wide stock of elbows, tees, reducers, bends, and stub ends.
- Exporting to over 40 countries worldwide.
- Competitive pricing with on-time delivery.
- Trusted as a 904L SS Buttweld Elbow Supplier in India and abroad.
Stainless Steel 904L Buttweld Fittings Manufacturer & Supplier in India
At Solitaire Fittings, we pride ourselves on being a trusted DIN2609 Stainless Steel 904L Pipe Fittings Manufacturer and ASME SA366 SS 904L Pipe Bend Exporter with a reputation for quality and reliability. Whether you need ASTM A403 WP904L fittings, ASTM B366 WP904L Elbows, UNS N08904 Seamless Fittings, DIN 1.4539 Stub Ends, or Stainless Steel 904L Tees, we have the expertise and stock to fulfill your project requirements.
Request Your Stainless Steel 904L Buttweld Fittings Quote Today!
