Stainless Steel 304 & 304L Pipe Fittings Supplier and Exporter in India
Kalpataru Piping Solution is a manufacturer, and supplier for stainless steel 304 pipe fittings and stainless steel 304L pipe fittings which are one of the most popular austenitic stainless steel grades for piping in the industry and they enjoy their wide application based on their balance of corrosion resistant nature, weld ability and economics. SS 304 pipe fittings usually hold 18% chromium with 8% nickel thus give them considerable strength and ability for handling oxidation and some chemical environments where SS 304Lis one common low carbon grade; it is preferred when welding occurs where the metal will experience inter granular corrosion and will always be preferred for heavy field welding environments.
Fittings range like Elbows, Tees, Reducers, Caps, Crosses and Stub-ends are available in Buttweld, Socket weld and Threaded forms manufactured, or otherwise supplied against ASTM A403, ASME B16.9, ASME B16.11 & MSS-SP-43. All fittings are subjected for chemical composition & mechanical property test and the final lot is always supplied with a completeEN 10204 3.1mill test certificate; 3.2 inspection test report from a third party inspection agency is always supplied upon request.
As a Mumbai-based manufacturer and stockist, we keep ready inventory across standard sizes and schedules, so food processing plants, chemical units, water treatment projects and general fabrication work don’t have to wait on a custom production run for a standard requirement. Review the specifications, equivalent grades and dimensional data below, or get in touch for a fast, no-obligation quote.
- What Are Stainless Steel 304 & 304L Pipe Fittings?
- SS 304 vs SS 304L: Which Should You Choose?
- Stainless Steel 304 Pipe Fittings Technical Specifications
- Stainless Steel 304 Pipe Fittings Equivalent Grades & Chemical Composition
- Stainless Steel 304 Pipe Fittings Mechanical Properties (Typical)
- Dimensions & Weight Reference
- Types of SS 304/304L Fittings We Supply
- Corrosion Resistance & Service Data
- SS 304 Pipe Fittings Applications & Industries Served
- Manufacturing Process & Quality Control
- Certifications & Standards Compliance
- HS Code Reference
- Fold 17 — Packaging & Delivery
- Stainless Steel 304 Pipe Fittings Price List
- FAQ’s About SS 304 Pipe Fittings
What Are Stainless Steel 304 & 304L Pipe Fittings?
Stainless steel 304 pipe fittings are precision-formed elbows, tees, reducers, caps and stub ends made from the most common austenitic stainless grade — valued for good corrosion resistance, strong weldability and dependable performance across a wide range of general industrial and hygienic applications. SS 304L is the low-carbon version of the same alloy (carbon capped at 0.035% versus 0.08% for standard 304), which reduces the risk of chromium carbide precipitation and intergranular corrosion in the heat-affected zone after welding — making it the preferred choice for thicker sections or field-welded assemblies. Compared with our stainless steel 316/316L/316Ti pipe fittings, 304/304L is more cost-effective for freshwater and mildly corrosive service, while 316/316L adds molybdenum for better chloride and pitting resistance in marine or higher-corrosivity environments.
SS 304 vs SS 304L: Which Should You Choose?
Property | SS 304 | SS 304L |
|---|---|---|
Carbon Content | Max 0.08% | Max 0.035% (low-carbon) |
Weld Sensitisation Risk | Higher — carbide precipitation possible in HAZ | Lower — reduced risk of intergranular corrosion after welding |
Strength | Marginally higher tensile/yield strength | Slightly lower, but adequate for most piping duties |
Best Suited For | General service, non-critical welded assemblies | Heavy-wall welded fittings, food/pharma, corrosive service near welds |
Stainless Steel 304 Pipe Fittings Technical Specifications
Parameter | Specification |
|---|---|
Material Grades | SS 304 (UNS S30400), SS 304L (UNS S30403), SS 304H (UNS S30409) |
Governing Standards | ASTM A403 / ASME SA403, ASME B16.9, ASME B16.11, ASME B16.28, MSS-SP-43, DIN 2605/2615/2616/2617 |
Fitting Types | Elbow (45°/90°/180°, LR/SR), Tee (equal/reducing), Cross, Reducer (concentric/eccentric), Cap, Stub End |
End Connections | Buttweld, Socket Weld, Screwed/Threaded |
Size Range | Seamless buttweld: 1/2″-10″; Welded buttweld: 1/2″-48″ |
Wall Thickness / Schedule | SCH 10S, 10, 20, 30, STD, 40, 60, XS, 80, 100, 120, 140, SCH 160, XXS |
Bending Radius | R = 1D, 1.5D, 2D, 2.5D, 3D, 4D, 5D, 6D, 7D-40D or custom per MSS SP-43 |
Manufacturing Methods | Push, Press, Forge, Cast; Seamless, Welded, Fabricated |
Surface Finish | Mill, Pickled, 2D, Bright Annealed, Mirror Polished, #3/#4/#8 finish, Electro Polished, 2B finish |
Testing | Hydrostatic test, PMI, hardness, radiography, ultrasonic, IGC, flaring & flattening test |
Certification | EN 10204 3.1 Mill Test Certificate standard; 3.2 (TPI-witnessed) on request; NACE MR0175/MR0103 material available |
Stainless Steel 304 Pipe Fittings Equivalent Grades & Chemical Composition
International Equivalent Standards
Grade | UNS | WNR | JIS | BS | GOST |
|---|---|---|---|---|---|
SS 304 | S30400 | 1.4301 | SUS 304 | 304S31 | 08Х18Н10 |
SS 304L | S30403 | 1.4306 / 1.4307 | SUS 304L | – | 03Х18Н11 |
SS 304H | S30409 | 1.4301 | SUS 304H | – | – |
Typical Chemical Composition (%) — Part 1
| Grade | C | Mn | Si | P |
|---|---|---|---|---|
| SS 304 | 0.08 max | 2.0 max | 0.75 max | 0.045 max |
| SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max |
| SS 304H | 0.10 max | 2.0 max | 0.75 max | 0.045 max |
Typical Chemical Composition (%) — Part 2
Grade | S | Cr | Ni | N |
|---|---|---|---|---|
SS 304 | 0.030 max | 18-20 | 8-11 | – |
SS 304L | 0.03 max | 18-20 | 8-13 | – |
SS 304H | 0.03 max | 18-20 | 8-10.5 | – |
Stainless Steel 304 Pipe Fittings Mechanical Properties (Typical)
Property | Value |
|---|---|
Density | 8.0 g/cm³ |
Melting Point | 1400-1450°C (2550-2640°F) |
Tensile Strength | Psi 75,000 / MPa 515 |
Yield Strength (0.2% Offset) | Psi 30,000 / MPa 205 |
Elongation | 35% |
Hardness | Rockwell B (HR B) approx. 92; Brinell (HB) approx. 201 |
Note: Values above are indicative for SS 304/304L. Grade-specific data sheets and mill test certificates are available on request for procurement-grade data.
Dimensions & Weight Reference
Buttweld Elbow — Sample Dimensions (ASME B16.9)
NPS | O.D. (mm) | 90° LR Elbow C-F (in) | 45° LR Elbow C-F (in) | 180° Return C-C (in) |
|---|---|---|---|---|
1/2″ | 21.3 | 1 1/2 | 5/8 | 1 7/8 |
1″ | 33.4 | 1 1/2 | 7/8 | 2 |
2″ | 60.3 | 3 | 1 3/8 | 3 5/8 |
4″ | 114.3 | 6 | 2 1/2 | 6 3/16 |
6″ | 168.3 | 9 | 3 3/4 | 8 1/2 |
12″ | 323.9 | 18 | 7 1/2 | 15 |
Approximate Elbow & Equal Tee Weight (kg, Schedule 40S)
DN | 90° Elbow | 45° Elbow | Equal Tee |
|---|---|---|---|
25 | 0.07 | 0.04 | 0.13 |
50 | 0.40 | 0.23 | 0.86 |
100 | 2.10 | 1.08 | 4.47 |
150 | 10.89 | 5.44 | 8.07 |
300 | 59.42 | 29.71 | 39.46 |
Full dimensional and weight charts (elbow, tee, reducer, cap, stub end) across all sizes and schedules are available on request or as a downloadable technical data sheet.
Types of SS 304/304L Fittings We Supply
Buttweld Fittings
Fitting | Typical Use |
|---|---|
90° / 45° / 180° Long & Short Radius Elbow | Directional change in pipe run |
Equal Tee & Reducing Tee | Branch connection, same or reduced outlet size |
Concentric & Eccentric Reducer | Step-down/up between two pipe diameters |
End Cap / Stub End | Terminates a run or pairs with a lap-joint flange |
Cross (Equal & Reducing) | Multi-directional branch connection |
Forged, Socket Weld & Threaded Fittings
Fitting | Typical Use |
|---|---|
Socket Weld Elbow, Tee & Cross | Small-bore, high-pressure directional and branch connections |
Coupling (Full / Half) | In-line joint between two pipes |
Threaded Elbow, Tee, Nipple, Plug & Bushing | Low-pressure, non-critical and instrumentation lines |
Union | Allows quick disconnection for maintenance |
Corrosion Resistance & Service Data
Environment | SS 304 Performance |
|---|---|
85% Phosphoric Acid | Resistant up to approx. 176°F |
0.2% Hydrochloric Acid | Resistant above boiling point |
1% Hydrochloric Acid | Resistant up to approx. 86°F |
80% Acetic Acid | Resistant up to approx. 212°F |
65% Nitric Acid | Resistant up to approx. 212°F |
10% Nitric Acid | Resistant above boiling point |
Maximum recommended continuous service temperature for SS 304/304L is generally cited around 870°C in oxidizing atmospheres, with practical piping applications typically well below this. Confirm exact limits against your specific process chemistry and pressure rating.
SS 304 Pipe Fittings Applications & Industries Served
Industry | Where SS 304/304L Fittings Are Used |
|---|---|
Food & Beverage Processing | Hygienic, non-contaminating fluid transfer lines |
Pharmaceutical & Biotech | Sanitary process piping meeting cleanliness standards |
Water & Waste Treatment | Corrosion-resistant piping for treatment plants |
Gas Processing | General corrosive and pressurised gas handling systems |
Power Generation | Condensers, heat exchangers and balance-of-plant piping |
Marine Equipment | General shipboard piping in low-to-moderate chloride exposure |
Storage Tanks & Refrigeration | Structural and process piping for storage and cooling systems |
For higher chloride exposure or marine/offshore service, step up to our stainless steel 316/316L/316Ti pipe fittings or stainless steel 904L pipe fittings. For elevated-temperature service, consider our stainless steel 347H pipe fittings or stainless steel 310/310S pipe fittings.
Manufacturing Process & Quality Control
Step | Process Stage | What Happens |
|---|---|---|
1 | Raw Material Selection | Certified SS 304/304L billets/plates sourced from approved mills |
2 | Forming | Push, press, forging or casting to the required fitting geometry |
3 | Heat Treatment / Solution Annealing | Restores ductility and relieves forming stress |
4 | Surface Finishing | Mill, pickled, polished, bright annealed or electro-polished as specified |
5 | Bevelling | Edge preparation to ASME B16.25 for weld-ready fittings |
6 | Final Inspection | Visual, dimensional, PMI, hydrostatic and radiographic testing before packing |
Certifications & Standards Compliance
Certification / Standard | Coverage |
|---|---|
ISO 9001:2015 | Quality Management System |
ASTM A403 / ASME SA403 | Wrought austenitic SS piping fittings — grades, testing, heat treatment |
ASME B16.9, B16.11, B16.28 | Dimensional accuracy, tolerances and pressure ratings |
MSS SP-43 | Wrought & fabricated buttweld fittings for corrosion-resistant applications |
EN 10204 3.1 / 3.2 | Mill test certificates standard; 3.2 TPI-witnessed on request |
NACE MR0175 / MR0103 | Sour-service qualified material available on request |
HS Code Reference
HSN Code | Product Description |
|---|---|
7307 2300 | Stainless steel pipe fittings — elbows, tees, reducers, caps and similar tube/pipe fittings |
Packaging & Delivery
All SS 304/304L fittings are cleaned and packed in wooden crates, pallets, plastic wrap, bubble wrap or custom packaging as specified, with grade, heat number, size and standard clearly marked. Full documentation — MTC, third-party inspection report, 100% radiography test report and raw material test certificate — is included with every consignment. We supply pan-India and export to multiple countries with export documentation prepared in advance to avoid customs delays.
Stainless Steel 304 Pipe Fittings Price List
The Stainless Steel 304 pipe fittings price list depends on factors such as fitting type, size, wall thickness, schedule, quantity, and market conditions. SS 304 fittings are available in elbows, tees, reducers, crosses, caps, couplings, and other configurations for industrial piping systems. For an accurate and updated price, customers should share their required fitting specifications, sizes, quantities, and applicable standards to receive a competitive quotation.
Other Available Stock of ASTM A403 Stainless Steel 304/304L Pipe Fittings
- Stainless Steel 304L 90 Deg Elbow Dealer
- Stainless Steel 304 45 Deg Elbow Stockist
- ASTM A403 Stainless Steel 304L Equal Tee
- 304 Stainless Steel Unequal / Reducing Tee
- Stainless Steel 304L Eccentric Reducer
- ANSI/ ASME B16.9 Stainless Steel 304 End Cap
- Stainless Steel 304 Reducing Nipple Supplier
- ASTM A403 WP304L SS Straight Tee in India
- Stainless SA403 304L Concentric Reducer
- Stainless Steel 304 90 Deg Short Radius Elbow
- 304L Stainless Steel Short Stub End Trader
- ASME SA403 SS 304 Barrel Nipple Stockholder
- B16.9 SS 304L 45 Deg Long Radius Elbow
- ASTM A403 WP304 SS Long Stub End
- AISI 304 Lap Joint Stub End Manufacturer
- ASTM A403 Stainless Steel 304 /304L Tee
- Stainless Steel ASTM A403 WP304 Cross Fitting
- ASTM A403 WP304L Stainless Steel Stub End
- ASTM A403 SS 304L Piggable Bend Supplier
- Grade 304 Stainless Steel Long Radius Elbow
- SA403 Stainless Steel 304L Short Radius Elbow
- SS 304 Swage Nipple / Reducing Nipple
- B16.9 Stainless Steel 304L Unequal Cross
- A403 Stainless Steel 304/304L Bend in Mumbai
- Stainless Steel 304 U Bend Wholesaler
- A403 SS 304 Pipe End Cap Exporter
- Stainless Steel 304L Seamless Pipe Fittings
- 304/304L Stainless Steel Buttweld Cap
- ASTM A403 SS 304L Pipe Nipple Distributors
- Stainless Steel UNS S30400 Pipe Fittings
- SS UNS S30403 Pipe Fittings Supplier
- Stainless Steel DIN 1.4301 Long Radius Bend
- SS DIN 1.4306 / 1.4307 180° Return Bends
- 304-304L Stainless Steel 1D / 3D / 5D Elbow
- SS 304/304L ASME B16.9 Buttweld Bend
- 304-304L SS Seamless / Welded Elbow
FAQ’s About SS 304 Pipe Fittings
304 stainless steel pipe is widely used for water and chemical processing, food and beverage equipment, architectural applications, heat exchangers, plumbing, and general industrial piping. It is preferred for its good corrosion resistance, strength, and ease of fabrication.
The main difference is corrosion resistance. 316 stainless steel contains molybdenum, which provides better resistance to chlorides, saltwater, and corrosive chemicals than 304 stainless steel. SS 304 is generally more economical, while SS 316 is preferred for marine, chemical, and highly corrosive environments.
The thickness of 304 stainless steel pipe depends on its nominal pipe size and schedule, such as Schedule 5, 10, 40, 80, or 160. Common wall thicknesses range from thin-wall tubing to several millimeters for heavy-duty industrial applications. The required thickness should be selected based on pressure, temperature, and application requirements.
We supply seamless buttweld fittings from 1/2″ to 10″, and welded buttweld fittings from 1/2″ to 48″, across schedules from SCH 10S to SCH 160/XXS.