Stainless Steel 904L Pipe Fittings
Arrow Piping Solutions is a trusted manufacturer, supplier, and exporter of top-grade Stainless Steel 904L Buttweld Fittings in India. Our extensive product range includes ASTM B366 WP904L 45° Elbows, SS 904L 90° Elbows, SS 904L Pipe Caps, SS 904L Reducers, ANSI B16.9 SS 904L Buttweld Crosses, and more.
Stainless Steel 904L (UNS N08904) is a high-alloy austenitic stainless steel with added copper, molybdenum, and nickel for exceptional resistance to strong reducing acids, such as sulfuric acid. Known for its high corrosion resistance, formability, toughness, and weldability, SS 904L fittings from Arrow Piping Solutions are ideal for extreme environments including chemical processing, power generation, and marine systems.
Our fittings comply with global standards such as ASME/ANSI B16.9, B16.25, B16.28, B16.49, and MSS-SP-43. We maintain a large inventory in Mumbai to ensure timely supply of SS 904L seamless and welded pipe fittings across India and globally.
Stainless Steel 904L Pipe Fittings Range:
- ASTM B366 WP904L 45° & 90° Elbows
- SS 904L Pipe Caps
- SS 904L Concentric & Eccentric Reducers
- ANSI B16.9 SS 904L Buttweld Crosses
- SS 904L Seamless and Welded Pipe Bends
- SS 904L Stub Ends (Short & Long)
- Customized SS 904L Fittings as per Drawings
| Specification | ASTM B366 / ASME SB366 |
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| Dimension Standards | ASME/ANSI B16.9, B16.28, MSS-SP-43, ASME B16.25, ASME B16.49 |
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| ASME B16.9 | Factory‑Made Wrought Buttwelding Fittings |
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| ASME B16.25 | Buttwelding Ends |
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| ASME B16.28 | Butt‑Welded Short Radius Elbows & Return Bends |
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| MSS SP‑43 | Wrought & Fabricated Butt‑Welding Fittings for Low Pressure, Corrosion Resistant Applications |
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| Size Range | ½″ NB to 24″ NB (Sch 10s–XXS) |
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| Seamless Butt Weld Size | ½″–10″ |
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| Welded Butt Weld Size | ½″–48″ |
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| Thickness | Sch 5s, 10s, 40s, 80s, 160s, XXS |
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| Bending Radius | 1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
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| Type | Seamless / Welded / Fabricated |
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| Standard | Werkstoff Nr. | UNS | JIS | BS | KS | AFNOR | EN |
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| SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
| NPS | O.D. at Bevel | I.D. at End | Wall Thickness | Elbows/Tees A/B/C/M | 180° Return Bends O | 180° Return Bends K | Ends Alignment U | Reducers H | Caps E |
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| ½ to 2½ | 0.06 -0.03 | 0.03 | ≥87.5% nominal | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 3 to 3½ | 0.06 | 0.06 | ≥87.5% nominal | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 4 | 0.06 | 0.06 | ≥87.5% nominal | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 5 to 8 | 0.09 -0.06 | 0.06 | ≥87.5% nominal | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.25 |
| 10 to 18 | 0.16 -0.12 | 0.12 | ≥87.5% nominal | 0.09 | 0.38 | 0.25 | 0.06 | 0.09 | 0.25 |
| 20 to 24 | 0.25 -0.19 | 0.19 | ≥87.5% nominal | 0.09 | 0.38 | 0.25 | 0.06 | 0.09 | 0.25 |
| 26 to 30 | 0.25 -0.19 | 0.19 | ≥87.5% nominal | 0.12 | – | – | – | 0.19 | 0.38 |
| 32 to 48 | 0.25 -0.19 | 0.19 | ≥87.5% nominal | 0.19 | – | – | – | 0.19 | 0.38 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
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| SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00–23.00 | 4.00–5.00 | 23.00–28.00 | 1.00–2.00 |
| Density | 7.95 g/cm³ |
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| Melting Point | 1510 °C (2750 °F) |
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| Tensile Strength | 485 MPa (75,000 psi) |
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| Yield Strength (0.2% offset) | 275 MPa (40,000 psi) |
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| Elongation | 20% |
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- Oil and Gas Industry
- Chemical Processing
- Heat Exchangers
- Power Generation
- Pharmaceutical Industry
- Marine Applications
- Pulp and Paper Industry
- Condensers and Evaporators
- Food and Dairy Processing
- Water Treatment Plants
Arrow Piping Solutions is committed to offering premium SS 904L pipe fittings that ensure outstanding performance in highly corrosive environments. Contact us today to learn more about our complete inventory or to request a quote tailored to your project.