Stainless Steel 904L Pipe Fittings Manufacturer, Supplier & Exporter in India
kalpataru piping solutions manufacture, stock & export ss 904l pipe fittings in Mumbai. Our SS 904L Pipe Fittings are supplied at par with standards which cover the specification of fittings in seamless, welded or any other construction like welding or fabrication in the case of the most corrosive environments and for conditions related with chlorides, Sulphuric acid where material resistance in against to pitings and crevice corrosion. Gr 904L pipe fittings are made from SS 904L Pipe & fitting from- ½ ‘ to 48 “NB and in schedule 5 S to XXS with fittings like Ellbow, Tee’s, Reducer, Cap’s, Cross etc. Supplies are available of matching SS 904L flanges, SS 904L tubes, and 904L instrumentation tube fittings from a single source to complete your piping system.
Each batch is manufactured with an ISO 9001 approved quality system, is fully traceable and has mill test certificates available, and upon request, it is third party inspected. Kalpataru Piping Solution can provide fittings for chemical processing plants, pulp and paper production units, desalination plants, and offshore piping systems with consistent quality products at competitive prices with reliable worldwide delivery to more than 80 countries. View our full pipe fittings range family below, send us a custom quotation and feel the experience that engineers and procurement teams from across India and globally rely on, for critical pipe fittings in stainless steel.
What is SS 904L Pipe Fittings
Explain in plain language what grade 904L is, why ‘L’ (low carbon) matters for weld-decay resistance, and why customers specifically search for this alloy over standard stainless steel pipe fittings (e.g. 316L) when handling sulphuric acid, phosphoric acid, or seawater applications. Reassure the reader that Kalpataru stocks ready inventory and can also custom-fabricate non-standard sizes, and cross-link to our broader steel flanges and steel tubes category pages for readers comparing product types.
SS 904l Pipe Fittings Technical Specifications
| Parameter | Specification |
|---|---|
| Specification | ASTM B366 / ASME SB366 |
| Dimensional Standard | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Size Range | ½” NB to 48″ NB |
| Thickness | Sch 5S, 10S, 40S, 80S, 160S, XXS |
| Type | Seamless / Welded / Fabricated |
| Bending Radius | 1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| End Finish | Beveled, Plain, Threaded (on request) |
SS 904l Pipe Fittings Chemical Composition (Grade 904L / UNS N08904 / 1.4539)
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
|---|---|---|---|---|---|---|---|---|---|
| 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.0–23.0 | 4.00–5.00 | 23.0–28.0 | 1.00–2.00 |
SS 904l Pipe Fittings Mechanical Properties
| Tensile Strength (MPa min) | Yield Strength 0.2% (MPa min) | Elongation (%min) | Hardness (HRB max) |
|---|---|---|---|
| 490 | 220 | 35 | 90 |
SS 904l Pipe Fittings Equivalent International Grades
| UNS | Werkstoff No. | JIS | BS | AFNOR | EN |
|---|---|---|---|---|---|
| N08904 | 1.4539 | SUS 904L | 904S13 | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
Stainless Steel 904L Pipe Fittings Types
SS 904l Pipe Fittings Applications / Industries
Oil & gas processing and offshore piping systems
Sulphuric and phosphoric acid handling plants
Pulp and paper manufacturing
Desalination and seawater handling equipment — commonly specified alongside our copper-nickel 90/10 pipe fittings and copper-nickel 70/30 pipe fittings for mixed-metallurgy seawater lines.Power generation and heat exchangers
Pharmaceutical and food processing lines
Textile machinery and synthetic fibre production
For projects requiring even higher alloy performance, see our Inconel 625 pipe fittings, Incoloy 825 pipe fittings, and Super Duplex Steel S32750/S32760 pipe fittings ranges.
Advantages of Choosing Kalpataru Piping Solution
- Direct manufacturer pricing — no middleman markup
- In-house stock for faster lead times on standard sizes
- Custom fabrication for non-standard dimensions and bend radii
- Strict quality control: dimensional, chemical & mechanical testing
- Export documentation support and worldwide logistics network
- Dedicated technical team for material selection guidance
Need valves or tube fittings to match your 904L piping system? Browse our 904L Needle Valve, 904L Manifold Valves, and 904L Instrumentation Ball Valves ranges.
Comparison: SS 904L vs SS 316L Pipe Fittings
| Property | SS 904L | SS 316L |
|---|---|---|
| Nickel Content | 23–28% | 10–14% |
| Molybdenum Content | 4.0–5.0% | 2.0–3.0% |
| Copper Addition | Yes (1.0–2.0%) | No |
| Acid Resistance | Excellent (sulphuric/phosphoric) | Moderate |
| Typical Use | Highly corrosive chemical processing | General corrosive & food-grade service |
| Relative Cost | Higher | Lower |
Dimensions Chart — 90° Elbows, Tees & Return Bends (Inches)
| Nom. Pipe Size | 90° LR Elbow (A) | 90° SR Elbow (A) | Tee (C) | 180° Return Bend (O) | Cap (E) |
|---|---|---|---|---|---|
| 1/2 | 1.50 | – | 1.00 | 3.00 | 1.00 |
| 1 | 1.50 | 1.00 | 1.50 | 3.00 | 1.50 |
| 2 | 3.00 | 2.00 | 2.50 | 6.00 | 1.50 |
| 4 | 6.00 | 4.00 | 4.12 | 12.00 | 2.50 |
| 8 | 12.00 | 8.00 | 7.00 | 24.00 | 5.00 |
| 12 | 18.00 | 12.00 | 10.00 | 36.00 | 6.00 |
| 24 | 36.00 | 24.00 | 17.00 | 72.00 | 10.50 |
Indicative Packing & Pricing Guide
| Fitting Type | Indicative Price (FOB) |
|---|---|
| 904L Elbow (90°/45°/180°) | USD 150 onwards / piece |
| 904L Reducer (Con./Ecc.) | USD 150 onwards / piece |
| 904L Tee (Equal/Unequal) | USD 350 onwards / piece |
| 904L Stub End | USD 150 onwards / piece |
| 904L End Cap | USD 150 onwards / piece |
| 904L Cross | USD 350 onwards / piece |
Key Export Destinations
| Region | Representative Countries |
|---|---|
| Middle East | UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Iran, Iraq |
| Asia Pacific | Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan |
| Europe | Germany, UK, Italy, Netherlands, Spain, France, Poland |
| Americas | USA, Canada, Brazil, Mexico, Colombia, Argentina |
| Africa | Egypt, Nigeria, South Africa, Algeria, Libya |
Manufacturing Process & Quality Assurance
Briefly describe forging/piercing/extrusion/welding process, solution annealing (1500–1600°F cooled rapidly), and QA stages: raw material inspection, dimensional check, radiography/UT for welds, hydrotest where applicable, and final visual inspection before packing. Mention ISO 9001:2015 certification and optional third-party inspection (SGS, BV, TUV) on customer request.
Certifications & Standards
- ISO 9001:2015 Certified Manufacturing Facility
- Manufactured as per ASTM B366 / ASME SB366
- Dimensions per ASME B16.9, B16.28, MSS-SP-43
- Mill Test Certificate as per EN 10204 3.1 / 3.2
- Third-party inspection available: SGS / BV / TUV / Lloyd’s
FAQ’s About Stainless Steel 904L Pipe Fittings
Stainless Steel 904L is a low carbon, high-alloy austenitic stainless steel. It contains high levels of chromium, nickel, molybdenum, and copper. This composition provides excellent resistance to corrosion in aggressive environments.
Yes, 904L offers superior corrosion resistance compared to 316/316L, especially in chloride and acidic conditions. It performs better in harsh chemical environments. However, it is more expensive and used for critical applications.
904L is equivalent to UNS N08904 and EN 1.4539 grades. It is also comparable to other high-alloy austenitic stainless steels. These equivalents ensure similar corrosion resistance and performance.
The typical hardness of Stainless Steel 904L is around Brinell 150–190 HB. It is relatively soft compared to other stainless steels. This makes it easy to form and weld while maintaining good strength.
The typical hardness of Stainless Steel 904L is around Brinell 150–190 HB. It is relatively soft compared to other stainless steels. This makes it easy to form and weld while maintaining good strength.
Other Available Stainless Steel 904L Pipe Fittings – ASTM B366 Stock
- Stainless Steel 904L 90 Deg Elbow Dealer
- 904L Stainless Steel 45 Deg Elbow
- ASTM B366 Stainless Steel 904L Equal Tee
- SS 904L Unequal / Reducing Tee Stockist
- Stainless Steel 904L Eccentric Reducer
- ANSI/ ASME B16.9 Stainless Steel 904L End Cap
- Stainless Steel 904L Reducing Nipple Supplier
- ASTM B366 WP904L SS Straight Tee in India
- Stainless Steel SB366 904L Concentric Reducer
- Gr. 904L SS 90 Deg Short Radius Elbow
- 904L Stainless Steel Short Stub End Trader
- ASME SB366 SS 904L Barrel Nipple Stockholder
- B16.9 SS 904L 45 Deg Long Radius Elbow
- SS ASTM B366 WP904L Long Stub End
- AISI 904L Lap Joint Stub End Manufacturer
- ASTM B366 Stainless Steel 904L Tee
- Stainless Steel ASTM B366 WP904L Cross Fitting
- ASTM B366 WP904L Stainless Steel Stub End
- ASTM B366 SS 904L Piggable Bend Supplier
- Grade 904L Stainless Steel Long Radius Elbow
- SB366 Stainless Steel 904L Short Radius Elbow
- SS 904L Swage Nipple / Reducing Nipple
- B16.9 Stainless Steel 904L Unequal Cross
- B366 Stainless Steel 904L Bend in Mumbai
- Stainless Steel 904L U Bend Wholesaler
- B366 SS 904L Pipe End Cap Exporter
- Stainless Steel 904L Seamless Pipe Fittings
- 904L Stainless Steel Buttweld Cap
- ASTM B366 SS 904L Pipe Nipple
- Stainless Steel UNS N08904 Pipe Fittings
- DIN 1.4539 Pipe Fittings Supplier
- SUS 904L Long Radius Bend Distributors
- SS DIN 1.4539 180° Return Bends
- 904L Stainless Steel 1D / 3D / 5D Elbow
- 904L SS ASME B16.9 Buttweld Bend
- Stainless Steel 904L Seamless / Welded Elbow