These fittings, produced from an austenitic stainless steel grade with 18% chromium and 8% nickel, deliver high durability in critical applications. Stainless steel 304 pipe fittings constitute manganese, phosphorus, sulfur, and silicon.
Typically, manufacturers choose one of these manufacturing techniques for pipe fittings:
- Forging entails heating, shaping, and machining the raw material into the required dimensions and shapes. Open-die forging gets preferred for larger fittings, while closed-die is better suited to complex components.
- Hot forming pushes the heated material over a mandrel to obtain the required fitting.
- Cold forming uses extrusion instead of heat.UNS S30400 seamless fittings also get produced through extrusion.
Some mills also use hydraulic bulging forming, stamping, and rolling wheels for manufacturing pipe fittings.
ASTM A403 WP304 elbow manufacturer in India as per ASME B16.9
Marine industries require pipe fittings that can handle seawater without corrosion or deformation. 304 SS fittings are not the best choice for continuous exposure to seawater due to their abundance of chlorides.
They are vulnerable to corrosion, which can lower the performance of your application. Stainless steel 304 fittings may tolerate saltwater intermittently in applications like splash zones or coastal services. But the components must get cleaned with fresh water repeatedly.
We are trusted supplier of Stainless steel 304 fittings in Mumbai, Quickly get latest pricing of SS 304 tee
Stainless steel 304 pipe fittings
Stainless steel 304 buttweld fittings
ASTM A403 WP304 elbow
Elbow fittings are useful components to alter the flow direction at angles like 90, 180, or 45 degrees. An ASTM A403 WP304 elbow works in general engineering and in the petroleum and construction industries.
Predictably, it can handle high pressures and temperatures. You can procure these fittings pressure ratings from Class 150 to 2500. Buyers should consider the pipe schedule (thickness) with the corresponding pressure class.
As a reliable stockist of stainless steel 304 buttweld fittings, we offer WNR 1.4301 reducer and stub end at affordable prices with leak-proofness test reports
Table of Content
Stainless steel 304 pipe fittings specifications
| Welded Fittings Size | Seamless Fittings Size | Standard |
|---|---|---|
| 4″-72″ | 1/2″ to 24″ | ASME/ANSI B16.9, ASME B16.28 |
| Type | Schedule | Thickness |
| Elbow, tee, reducer, cap stub end | Sch 5 to XXS | 10 swg. to 20 swg. |
| Forged Fittings Sizes | Specification | Process |
| 1/2″ to 4″ | ASTM A403 / ASME SA403 | Seamless, welded, fabricated |
Need urgently SS 304 pipe fittings for your project? you are at right place, get low-priced, trade quality UNS S30400 seamless and welded fittings from our stock range
Stainless steel 304 fittings
- Standard: ASME B16.9/ ASME B16.28
- Yield strength : 215MPa
SS 304 fittings
- Tensile strength : 505MPa
- Temperature: up to 870°C
Werkstoff nr. 1.4301 tee
- Sizes: 1/2″ to 48″
- Methods: Seamless, welded, buttweld
SA403 WP304 reducer
- Types: Elbow, tee, reducer, cap, pipe cross
- Application: Chemical, petrochemical, oil and gas
SS 304 pipe fittings
- Surface finish: Hot dip galvanized, Epoxy coated, Mirror polish
- Schedule: SCH 5 to SCH XXS
304 stainless steel weld fittings
- Testing methods: hydrotest, proof test, NDT test, destructive
- Thickness: 1.5MM to 20MM
| NPS (Normal Pipe Size) | OD(Outside Daimeter) | 45 Deg Elbow Fittings | 90 Deg Elbow Fittings | 180 Deg Return Elbow | ||||
|---|---|---|---|---|---|---|---|---|
| (inch) | Long Radius Elbow | Short Radius | Long Radius Elbow | Long Radius Elbow | ||||
| inch | mm | Radius (Inch) |
Center to Face (Inch) |
Center to Face (Inch) |
Center to Face (Inch) |
Back to face (Inch) |
Center to Center (Inch) |
|
| 3/4 | 1.050 | 26.7 | 7/16 | – | 1 1/8 | 1 11/16 | 2 1/4 | |
| 1/2 | 0.840 | 21.3 | 5/8 | – | 1 1/2 | 1 7/8 | 2 | |
| 1 1/4 | 1.660 | 42.2 | 1 | 1 1/4 | 1 7/8 | 2 3/4 | 3 3/4 | |
| 1 | 1.315 | 33.4 | 7/8 | 1 | 1 1/2 | 2 3/16 | 3 | |
| 1 1/2 | 1.900 | 48.3 | 3 | 1 1/8 | 1 1/2 | 2 1/4 | 3 1/4 | 4 1/2 |
| 2 1/2 | 2.875 | 73.0 | 5 | 1 3/4 | 2 1/2 | 3 3/4 | 5 3/16 | 7 1/2 |
| 2 | 2.375 | 60.3 | 4 | 1 3/8 | 2 | 3 | 4 3/16 | 6 |
| 3 1/2 | 4.000 | 101.6 | 7 | 2 1/4 | 3 1/2 | 5 1/4 | 7 1/4 | 10 1/2 |
| 3 | 3.500 | 88.9 | 6 | 2 | 3 | 4 1/2 | 6 1/4 | 9 |
| 5 | 5.563 | 141.3 | 10 | 3 1/8 | 5 | 7 1/2 | 10 5/16 | 15 |
| 4 | 4.500 | 114.3 | 8 | 2 1/2 | 4 | 6 | 8 1/4 | 12 |
| 6 | 6.625 | 168.3 | 12 | 3 3/4 | 6 | 9 | 12 5/16 | 18 |
| 10 | 10.750 | 273.1 | 15 | 6 1/4 | 10 | 15 | 20 3/8 | 30 |
| 8 | 8.625 | 219.1 | 12 | 5 | 8 | 12 | 16 5/16 | 24 |
| 12 | 12.750 | 323.9 | 18 | 7 1/2 | 12 | 18 | 24 3/8 | 36 |
| Construction | Fittings Classes | Non-destructive Exam |
|---|---|---|
| Welded | WX | Radiography |
| Welded | W | Radiography or Ultrasonic |
| Seamless | S | None |
| Welded | WU | Ultrasonic |
| NPS | KG | LBS |
|---|---|---|
| 2-1¼ | 0.54 | 1.2 |
| 2-1½ | 0.59 | 1.3 |
| 2-3/4 | – | – |
| 2-1 | 0.5 | 1.1 |
| 2½-1½ | 1 | 2.2 |
| 2½-2 | 1.11 | 2.45 |
| 2½-1 | – | – |
| 3-2½ | 1.88 | 4.15 |
| 2½-1¼ | 0.95 | 2.1 |
| 3-1½ | 1.45 | 3.2 |
| 3-1¼ | – | – |
| 3-2 | 1.59 | 3.5 |
| 3½-3 | 2.72 | 6 |
| 3½-2 | 2.04 | 4.5 |
| 3½-1½ | – | – |
| 3½-2½ | 2.45 | 5.4 |
| 3½-1¼ | – | – |
| 4-3 | 3.4 | 7.5 |
| 4-3½ | 3.72 | 8.2 |
| 4-2 | 2.7 | 5.95 |
| 4-1½ | – | – |
| 4-2½ | 4.76 | 10.5 |
| 5-4 | 5.94 | 13.1 |
| 5-3 | 5.17 | 11.4 |
| 5-3½ | 5.53 | 12.2 |
| 5-2½ | 4.76 | 10.5 |
| 6-5 | 9.39 | 20.7 |
| 5-2 | – | – |
| 6-4 | 8.35 | 18.4 |
| 6-3 | 7.44 | 16.4 |
| 6-3½ | 7.85 | 17.3 |
| 6-2½ | – | – |
| 8-5 | 16.1 | 35.5 |
| 8-6 | 17.78 | 39.2 |
| 8-4 | 14.7 | 32.4 |
| 10-8 | 32.3 | 71.2 |
| 8-3½ | – | – |
| 10-6 | 27.76 | 61.2 |
| 10-4 | – | – |
| 10-5 | 25.72 | 56.7 |
| 12-8 | 43.77 | 96.5 |
| 12-10 | 50.58 | 111.5 |
| 12-6 | 38.42 | 84.7 |
- MSS SP-43
- ASME B16.9
- ASME SA403/ASTM A403
| Nominal Pipe Size |
Outside Diameter |
Reducers | ||
|---|---|---|---|---|
| Reduced from (Inch) |
(mm) | (Inch) | Reduced to (Inch) |
Concentric & Eccentric Length (Inch) |
| 1/2 | 21.3 | 0.840 | 1/4 | 1 1/2 |
| 3/8 | 1 1/2 | |||
| 3/4 | 26.7 | 1.050 | 3/8 | 2 |
| 1/2 | 2 | |||
| 1 | 33.4 | 1.315 | 3/8 | 2 |
| 1/2 | 2 | |||
| 3/4 | 2 | |||
| 1 1/4 | 42.2 | 1.660 | 1/2 | 2 |
| 3/4 | 2 | |||
| 1 | 2 | |||
| 1 1/2 | 48.3 | 1.900 | 1/2 | 2 1/2 |
| 3/4 | 2 1/2 | |||
| 1 | 2 1/2 | |||
| 1 1/4 | 2 1/2 | |||
| 2 | 60.3 | 2.375 | 3/4 | 3 |
| 1 | 3 | |||
| 1 1/4 | 3 | |||
| 1 1/2 | 3 | |||
| 2 1/2 | 73.0 | 2.875 | 1 | 3 1/2 |
| 1 1/4 | 3 1/2 | |||
| 1 1/2 | 3 1/2 | |||
| 2 | 3 1/2 | |||
| 3 | 88.9 | 3.500 | 1 | 3 1/2 |
| 1 1/2 | 3 1/2 | |||
| 2 | 3 1/2 | |||
| 2 1/2 | 3 1/2 | |||
| 3 1/2 | 101.6 | 4.000 | 1 1/4 | 4 |
| 1 1/2 | 4 | |||
| 2 | 4 | |||
| 2 1/2 | 4 | |||
| 3 | 4 | |||
| 4 | 114.3 | 4.500 | 1 1/2 | 4 |
| 2 | 4 | |||
| 2 1/2 | 4 | |||
| 3 | 4 | |||
| 3 1/2 | 4 | |||
| 5 | 141.3 | 5.563 | 2 | 5 |
| 2 1/2 | 5 | |||
| 3 | 5 | |||
| 3 1/2 | 5 | |||
| 4 | 5 | |||
| 6 | 168.3 | 6.625 | 2 1/2 | 5 1/2 |
| 3 | 5 1/2 | |||
| 3 1/2 | 5 1/2 | |||
| 4 | 5 1/2 | |||
| 5 | 5 1/2 | |||
| 8 | 219.1 | 8.625 | 3 | 6 |
| 3 1/2 | 6 | |||
| 4 | 6 | |||
| 5 | 6 | |||
| 6 | 6 | |||
| 10 | 273.1 | 10.750 | 4 | 7 |
| 5 | 7 | |||
| 6 | 7 | |||
| 8 | 7 | |||
| 12 | 323.9 | 12.750 | 5 | 8 |
| 6 | 8 | |||
| 8 | 8 | |||
| 10 | 8 | |||
| Fittings (psig) Pressure-Temperature ratings | |||||
|---|---|---|---|---|---|
| Ratings of Temperature | fittings Pressure Class | ||||
| 150 | 300 | ||||
| 1 1/4 – 2 inch. | 1/4 – 1 inch. | 2 1/2 – 3 inch. | |||
| (oC) | (oF) | ||||
| 93 | 200 | 265 | 1350 | 1785 | 910 |
| -29 to 66 | -20 to 150 | 300 | 1500 | 2000 | 1000 |
| 149 | 300 | 185 | 1050 | 1360 | 735 |
| 121 | 250 | 225 | 1200 | 1575 | 825 |
| 204 | 400 | – | 750 | 935 | 560 |
| 177 | 350 | 150 | 900 | 1150 | 650 |
| 260 | 500 | – | 450 | 510 | 385 |
| 232 | 450 | – | 600 | 725 | 475 |
| 288 | 550 | – | 300 | 300 | 300 |
| Pipe Fittings Tolerance | |||||||
|---|---|---|---|---|---|---|---|
| Common Type Of Buttweld Fittings | 45 degree elbows And 90 deg elbows fittings | 180 Deg Returns | |||||
| Normal Size Of Steel Pipe | ID at End |
OD at Bevel |
WT For (Wall Thickness) t / t1 |
Center-End Dai. A-B-C-M | Back-Face Dai. (K) |
Center-Center Dai. (O) |
Align-ment of Ends (U) |
| 3 a 3 1/2 | 1,6 | 1 | less | 2 | 7 | 7 | 1 |
| 1/2 a 2 1/2 | 0,8 | 1 | Not | 2 | 7 | 7 | 1 |
| 32 a 48 | 4,8 | +7 -5 | 5 | – | – | – | – |
| 4 | 1,6 | +2 -1 | than | 2 | 7 | 7 | 1 |
| 8 | 1,6 | 2 | of nominal | 2 | 7 | 7 | 1 |
| 5 a 6 | 1,6 | +3 -1 | 87,50% | 2 | 7 | 7 | 1 |
| 10 | 3,2 | +4 -3 | tickness | 2 | 7 | 7 | 2 |
| 20 a 24 | 4,8 | +6 -5 | 3 | 10 | 2 | 7 | |
| 12 a 18 | 3,2 | +4 -3 | 3 | 10 | 2 | 7 | |
| 26 a 30 | 4,8 | +7 -5 | 3 | – | – | – | – |
| Welded fittings | Seamless fittings | |
|---|---|---|
| Elbows | Up to 42″ | Up to 24″ |
| End Caps | – | Up to 24″ |
| Tees | Upto 36″ | Upto 24″ |
| Return Bends | – | Up to 8″ |
| Reducers | Up to 48″ | Up to 24″ |
| Swage Nipple | – | Up to 4″ |
| Cross | Upto 36″ | Upto 8″ |
| 304 | |
| Hardness (Brinell) | 201 |
| Melting Range,℃ | 1400 ℃ |
| Density | 8 |
| Tensile Strength (Mpa) | 515 |
| Elongation % | 40 |
| Yield Strength (Mpa) | 205 |
Check complete information of SA403 WP304 pipe cap like dimensions, weight, properties here online
| Weight % | C | Mn | P | S | Si | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 304 | .08 | 2.00 | .045 | .030 | 1.00 | 18.0-20.0 | 8.0-11.0 |
| Grade | Strength of Yield 0.2% Proof (MPa) minimum | Elongation (% in 50mm) minimum | Strength of Tensile (MPa) minimum | Hardness | |
|---|---|---|---|---|---|
| Brinell (HB) maximum | Rockwell B (HR B) maximum | ||||
| 304 | 205 | 40 | 515 | 201 | 92 |
| Grade | Old British | UNS No | Euronorm | Japanese JIS | Swedish SS | ||
|---|---|---|---|---|---|---|---|
| En | BS | Name | No | ||||
| 304 | 58E | 304S31 | S30400 | X5CrNi18-10 | 1.4301 | SUS 304 | 2332 |
Proper storage is salient to maintain the quality and performance of stainless steel 304 buttweld fittings. They must get stored under a ventilated, opaque cover and kept away from debris and contamination. It is also vital to keep them well-supported to avoid bending or safety hazards to the personnel handling them.
Buyers can use a storage system that provides continuous support. A paramount consideration is to keep 304 stainless steel weld fittings away from excessive heat, dampness, and compressive forces. Tightly enclosed or cramped areas are not advisable for storage.
These pipe fittings have extensive uses in food and chemical processing, heat exchangers, and petrochemicals. SS 304 fittingsoffer numerous benefits to industrial applications:
- High tensile strength (515 to 625 MPa)
- Corrosion resistance to abrasives, oxidizing acids, and medium-strength organic acids like acetic and formic
- Flexible, weldable, and formable into different types, like an SA403 WP304 reducer
- Durable and low maintenance
- Suitable for high temperatures
Tees are popular pipe fittings to connect three pipes or piping sections in a junction. A Werkstoff nr. 1.4301 teeis based on the German “Werkstoff” numbering system. Itextends numerous advantages in corrosion resistance, easy cleaning, and long service duration.
Customers must specify the connection type while ordering: male or female threaded. Consider using fittings of the same material as those employed in the application.
Manufacturers can produce SS 304 pipe fittings in client-specified sizes, thicknesses, and designs. We recommend ensuring compatibility with the media and the quality/production standards and codes.