
ASTM A403 STAINLESS STEEL 304 BUTTWELD PIPE FITTINGS MANUFACTURING IN INDIA
As your trusted SS 304 Pipe Fittings manufacturer, whether you require well-known fittings or custom solutions, we have the expertise and resources to deliver merchandise that meet your specs and exceed your expectations. Stainless metallic 304 pipe fittings are the diverse most appreciably used and versatile additives in piping systems. Known for its amazing corrosion resistance, electricity, and sturdiness, SS 304 fittings are essential in various industries, consisting of processing, chemical processing, oil and gas, and pharmaceuticals. Here’s defining of SS 304 pipe fittings and their applications and types specialized in seamless, welded and fabricated variations. Our merchandise encompasses elbows, tees, crosses, bends, couplings, Stub Ends, Nipples, Reducers all are meticulously crafted from splendid materials to make certain sturdiness and durable performance.
Socket-weld attaches its pipe to a valve, fitting or flange seamlessly, utilizing recessed space. Among the numerous kinds of pipe fittings to be had, socket weld pipe fittings stand out for his or her reliability and strength, making them a favored desire for high-stress applications.
Threaded pipe fittings, also referred to as screw fittings, are a popular desire because of their ease of installation and flexibility. At Astromet Steel and Engineering, we offer a wide range of terrific threaded fittings that cater to numerous business applications.
Stainless Steel 304 Buttweld Pipe Fittings Specifications |
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| Specifications | ASTM A403 / ASME SA403 | |
| Size | 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded,
Fabricated) |
|
| Standards | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 | |
| Thickness | 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140,
160, XXS available with NACE MR 01-75 |
|
| Type | Seamless / Welded / Fabricated | |
Other Types of Buttweld Fittings:
At Astromet Steel and Engineering, we offer a number of fittings to your unique needs, such as;
Elbows
Elbows are used to change the route of go with the flow in a piping device. They come in 3 predominant angles: 45 degree, 90 degree, and 180 degree.
45-Degree Elbow: This elbow modifications the direction of drift through 45 ranges. It is frequently used in systems where space is confined or a mild exchange in direction is required.
90 degree Elbow: The maximum common elbow, it changes the flow direction by way of 90 tiers, commonly used in plumbing, heating, and cooling systems.
180-Degree Elbow: This elbow permits for a complete U-turn inside the piping device, useful in applications requiring a decent flip.
Buttweld Tees
Tees are used to mix or break up fluid flow in a piping gadget. They have 3 openings: one inlet and retailers, or vice versa.
Buttweld Caps
Caps are used to seal the ends of pipes, stopping glides from exiting the pipe machine. They are crucial for shutting off unused or future connections.
Buttweld Reducers
Reducers are used to attach pipes of various diameters, ensuring an easy transition between varying pipe sizes.
Concentric Reducer: This reducer has a conical form and aligns the centerlines of both pipes, typically utilized in vertical piping structures.
Eccentric Reducer: This reducer has an off-center shape, stopping air pockets in horizontal piping structures.
Buttweld Stub Ends
Stub Ends are used along with lap joint flanges, taking into account easy assembly and disassembly of piping systems for inspection and preservation. They are available at diverse lengths and diameters, making them flexible for exclusive piping configurations.
Buttweld Nipples
Nipples are quick lengths of pipe with male threads on both ends, used for connecting two other fittings or pipes.
Buttweld Crosses
Crosses have four openings and are used to break up or integrate glides in four directions. This nipple has a hexagonal middle, taking into consideration clean tightening with a wrench. It is usually used for connecting pipes in tight spaces where a firm grip is needed.
CHEMICAL COMPOSITION
| Material | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Nickel (Ni) | Molybdenum(Mo) | Other Element |
| 304 Stainless Steel | 0.08% max | 2.00% max | 0.045% max | 0.030% max | 0.75% max | 18.0-20.0% | 8.0-10.5% | – | Nitrogen (N): 0.10% max |
| 304L Stainless Steel | 0.03% max | 2.00% max | 0.045% max | 0.030% max | 0.75% max | 18.0-20.0% | 8.0-12.0% | – | Nitrogen (N): 0.10% max |
| 316 Stainless Steel | 0.08% max | 2.00% max | 0.045% max | 0.030% max | 0.75% max | 16.0-18.0% | 10.0-14.0% | 2.00-3.00% | Nitrogen (N): 0.10% max |
| 316L Stainless Steel | 0.03% max | 2.00% max | 0.045% max | 0.030% max | 0.75% max | 16.0-18.0% | 10.0-14.0% | 2.00-3.00% | Nitrogen (N): 0.10% max |
| Alloy Steel (A234 WPB) | 0.30% max | 1.00% max | 0.050% max | 0.058% max | 0.20-0.35% | – | – | – | – |
| Nickel Alloy (Hastelloy C276) | 0.02% max | 1.00% max | 0.040% max | 0.030% max | 0.08% max | 14.5-16.5% | 15.0-17.0% | 15.0-17.0% | W: 3.00-4.50%, Fe: 4.0-7.0%, V: 0.35% max |
| Nickel Alloy (Hastelloy C22) | 0.015% max | 0.50% max | 0.020% max | 0.010% max | 0.08% max | 20.0-22.5% | 12.5-14.5% | 2.5-3.5% | W: 2.5-3.5%, Fe: 2.0-6.0% |
MECHANICAL BEHAVIOUR OF SS 304 BUTTWELD PIPE FITTINGS
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304 | 515 | 205 | 40 | 92 | 201 |
Here’s the equivalent materials for buttweld fittings:
| Equivalent Material(s) |
| EN/DIN 1.4301, UNS S30400, BS 304S15 |
| EN/DIN 1.4401, UNS S31600, BS 316S31 |
| EN/DIN 1.0457, P235GH, BS 3602-1 Grade 360 |
| EN/DIN 1.7335, 13CrMo4-5, BS 3604 Grade 621 |
| EN/DIN 1.7380, 10CrMo9-10, BS 3604 Grade 622 |
| EN/DIN 1.4903, X10CrMoVNb9-1, BS 3604 Grade 625 |
| EN/DIN 2.4819, BS NA 55 |
| EN/DIN 2.4602, BS NW 6022 |
| EN/DIN 1.4462, UNS S31803, BS 318S13 |
| EN/DIN 1.4410, UNS S32750, BS 318S13 |
Buttweld Fittings Dimension Chart
| Nominal Pipe Size | Outside Diameter | Center to Face | Back to Face | Center to Center | Length ‘L’ |
| Inch. | mm | D | A | B | C |
| —— | —— | —– | —– | —– | —– |
| 1/2 | 15 | 21.3 | 38 | 16 | 25 |
| 3/4 | 20 | 26.7 | 29 | 11 | 29 |
| 1 | 25 | 33.4 | 38 | 22 | 38 |
| 1 1/4 | 32 | 42.2 | 48 | 25 | 48 |
| 1 1/2 | 40 | 48.3 | 57 | 29 | 57 |
| 2 | 50 | 60.3 | 76 | 35 | 64 |
| 2 1/2 | 65 | 73.0 | 95 | 44 | 76 |
| 3 | 80 | 88.9 | 114 | 51 | 86 |
| 3 1/2 | 90 | 101.6 | 133 | 57 | 95 |
| 4 | 100 | 114.3 | 152 | 64 | 105 |
| 5 | 125 | 141.3 | 190 | 79 | 124 |
| 6 | 150 | 168.3 | 229 | 95 | 143 |
| 8 | 200 | 219.1 | 305 | 127 | 178 |
| 10 | 250 | 273.1 | 381 | 159 | 216 |
| 12 | 300 | 323.9 | 457 | 190 | 254 |
| 14 | 350 | 355.6 | 533 | 222 | 279 |
| 16 | 400 | 406.4 | 610 | 254 | 305 |
| 18 | 450 | 457.2 | 686 | 286 | 343 |
| 20 | 500 | 508.0 | 762 | 318 | 381 |
| 22 | 550 | 559.0 | 838 | 343 | 419 |
| 24 | 600 | 610.0 | 914 | 381 | 432 |
| 26 | 650 | 660.0 | 991 | 406 | 495 |
| 28 | 700 | 711.0 | 1067 | 438 | 521 |
| 30 | 750 | 762.0 | 1143 | 470 | 559 |
| 32 | 800 | 813.0 | 1219 | 502 | 597 |
| 34 | 850 | 864.0 | 1295 | 533 | 635 |
| 36 | 900 | 914.0 | 1372 | 565 | 673 |
| 38 | 950 | 965.0 | 1448 | 600 | 711 |
| 40 | 1000 | 1016.0 | 1524 | 632 | 749 |
| 42 | 1050 | 1067.0 | 1600 | 660 | 762 |
Size Chart
| Items | Seamless | Welded |
| 90 Degree and 45 Degree Elbows | Upto 24 | Upto 48 |
| Equal and Reducing Tees | Upto 24 | Upto 48 |
| Concentric and Eccentric Reducers | Upto 24 | Upto 48 |
| End Caps | Upto 24 | |
| 180 Degree Bends | Upto 6 | Upto 48 |
| Crosses | Upto 8 | Upto 36 |
| Swage Nipples | Upto 4 |
SOCKET WELD SPECIFICATIONS
Stainless Steel 304 Forged Socket weld Fittings Specifications |
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| Specifications | : | ASTM A182 & ASME SA182 |
| Size | : | 1/8” NB to 4” NB (Socketweld & Screwed-Threaded) |
| Standards | : | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Class | : | 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| Type | : | Socketweld Fittings |
Socket Weld Types:
Socket Weld Elbow
Socket weld elbows trade float route in piping structures, in 45° and ninety° angles, ideal for high-stress packages in chemical, oil, and electricity industries.
Socket Weld Tee
Socket weld tees department piping systems, combining or splitting waft securely. They are critical in excessive-stress industries like chemical flora, refineries, and water treatment facilities.
Socket Weld Coupling
Socket weld couplings join two pipe pieces securely, making sure a leak-evidence joint for excessive-pressure programs in chemical, oil, and strength plant structures.
Socket Weld Union
Socket weld unions be a part of two pipes, permitting easy disconnection and reconnection. Ideal for systems requiring frequent maintenance, including water treatment and HVAC.
Socket Weld Cap
Socket weld caps near pipe ends, preventing fluid waft and defense from contaminants. Essential in oil, chemical, and water treatment industries.
Socket Weld Reducer
Socket weld reducers join one-of-a-kind pipe diameters, ensuring easy transitions. Suitable for excessive-strain systems in oil, chemical, and strength generation industries.
Socket Weld Cross
Socket weld crosses create intersections in piping systems, dispensing fluid drift. Ideal for excessive-strain programs in chemical, oil, and water remedy.
Socket Weld Plug
Socket weld plugs briefly near pipe ends, making sure dependable seals for protection and testing in numerous piping structures.
SS 304 Forged Socket weld Fittings Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
Stainless Steel 304 Socket weld Fitting Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Equivalent Grades for 304 Stainless Steel Forged Socket weld Fittings
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
Socket Weld Dimensions
| NOM BORE | PIPE O.D. | 3000 LBS. (A max) | 3000 LBS. (B max) | 3000 LBS. (K) | 3000 LBS. (J) | 3000 LBS. (L) | 3000 LBS. (M) | 3000 LBS. (N) | 3000 LBS. (P) | 3000 LBS. (Q) | COMMON FACTORS (C min) | COMMON FACTORS (D min) | COMMON FACTORS (O max) | COMMON FACTORS (O min) | 6000 LBS. (A) | 6000 LBS. (B) | 6000 LBS. (M) | 6000 LBS. (K) | 6000 LBS. (N) |
| 1/8″ | 10.3 | 22 | 18.5 | 26 | 16 | 40 | 17.3 | 32 | 15 | 10 | 10.7 | 10 | 5 | 8 | 22 | 20 | 25 | 46 | |
| 1/4″ | 13.7 | 22 | 22 | 28 | 43 | 21.2 | 36 | 50 | 15 | 10 | 14.1 | 10 | 5 | 8 | 27 | 25 | 25 | 51 | |
| 3/8″ | 17.2 | 25 | 25 | 26 | 19 | 25.4 | 16.5 | 40 | 15 | 10 | 17.6 | 10 | 3 | 9 | 27 | 28 | 26 | 60 | |
| 1/2″ | 21.3 | 27 | 32 | 30 | 21 | 37 | 21.0 | 50 | 16 | 10 | 21.7 | 10 | 3 | 13 | 31 | 34 | 34 | 72 | |
| 3/4″ | 26.7 | 36 | 36 | 34 | 25 | 57 | 30 | 50 | 19.5 | 10 | 27.0 | 9 | 9 | 13 | 37 | 42 | 41 | 80 | |
| 1″ | 33.4 | 37 | 40 | 40 | 25 | 45.2 | 22.5 | 64 | 22.5 | 13 | 33.8 | 9 | 9 | 17 | 42 | 50 | 50 | 94 | |
| 1 1/4″ | 42.2 | 42 | 56 | 40 | 29 | 70 | 55 | 70 | 22.5 | 13 | 42.6 | 9 | 17 | 47 | 59 | 58 | 41 | 100 | |
| 1 1/2″ | 48.3 | 47 | 62 | 40 | 39 | 70 | 61.4 | 78 | 24 | 13 | 48.7 | 9 | 19 | 53 | 67 | 66 | 43 | 122 | |
| 2″ | 60.3 | 60 | 62 | 52 | 49 | 84 | 74 | 102 | 31 | 16 | 61.0 | 10 | 24 | 59 | 84 | 83 | 56 | 142 | |
| 2 1/2″ | 73.0 | 70 | 70 | 52 | 48 | 114 | 91.3 | 125 | 35 | 16 | 73.8 | 14 | 24 | 68 | 102 | 96 | 56 | 160 | |
| 3″ | 89.0 | 76 | 110 | 52 | 51 | 127 | 108.4 | 140 | 35 | 16 | 89.8 | 16 | 14 | 74 | 121 | 121 | 58 | ||
| 4″ | 114.50 | 88 | 137 | 58 | 150 | 136.9 | 42 | 150 | 42 | 19 | 115.5 | 19 | 24 | 90 | 152 | 152 | 64 |
THREADED FITTINGS SPECIFICATION
Stainless Steel 304 Forged Threaded Fittings Specifications |
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| Specifications | : | ASTM A182 & ASME SA182 |
| Size | : | 1/8” NB to 4” NB (Socketweld & Screwed-Threaded) |
| Standards | : | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Class | : | 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| Type | : | Threaded Fittings |
Threaded Pipe Types:
Threaded Nipple
Threaded nipples are quick pipes with male threads on each end, used to connect fittings or enlarge the period of a piping gadget. They are essential in plumbing and HVAC applications.
Threaded Elbow
Threaded elbows exchange the route of waft in a piping machine, to be had in 45° and 90° angles. They are extensively utilized in plumbing, oil and gasoline, and chemical processing.
Threaded Tee
Threaded tees are T-fashioned fittings that allow branching off a chief line. They are used to combine or cut up waft in water delivery, gasoline distribution, and business piping systems.
Threaded Coupling
Threaded couplings connect pieces of pipe, either of the identical or different diameters. They ensure a secure, leak-evidence connection, best for plumbing, irrigation, and commercial structures.
Threaded End Cap
Threaded end caps seal the give up of a pipe, stopping leaks and defending the pipe from harm. They are used in plumbing, gasoline strains, and systems requiring secure closure.
Threaded Hex
Threaded hex fittings, additionally known as hex nipples, have a hexagonal shape for smooth tightening with a wrench. They are used to connect fittings or make bigger pipes in excessive-strain applications.
Threaded Union
Threaded unions are part of two pipes, bearing in mind clean disconnection and reconnection. They are best for structures requiring common upkeep, along with plumbing, heating, and industrial piping.
SS 304 Forged Fittings Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
Stainless Steel 304 Threaded Fitting Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Equivalent Grades for 304 Stainless Steel Forged Fittings
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
Threaded Fittings Dimensions
| DN | NPS | Center to End
NPT Elbow, NPT Tee, NPT Cross A |
Center to End
45 Deg Elbow C |
O.D.
of Band H |
Min. Wall
Thick. G |
Length of
Thread. Minimum (1) |
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| Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | B | L2 | ||
| 6 | 1/8 | 21 | 21 | 25 | 17 | 17 | 19 | 22 | 22 | 25 | 3.18 | 3.18 | 6.35 | 6.4 | 6.7 |
| 8 | 1/4 | 21 | 25 | 28 | 17 | 19 | 22 | 22 | 25 | 33 | 3.18 | 3.30 | 6.60 | 8.1 | 10.2 |
| 10 | 3/8 | 25 | 28 | 33 | 19 | 22 | 25 | 25 | 33 | 38 | 3.18 | 3.51 | 6.98 | 9.1 | 10.4 |
| 15 | 1/2 | 28 | 33 | 38 | 22 | 25 | 28 | 33 | 38 | 46 | 3.18 | 4.09 | 8.15 | 10.9 | 13.6 |
| 20 | 3/4 | 33 | 38 | 44 | 25 | 28 | 33 | 38 | 46 | 56 | 3.18 | 4.32 | 8.53 | 12.7 | 13.9 |
| 25 | 1 | 38 | 44 | 51 | 28 | 33 | 35 | 46 | 56 | 62 | 3.68 | 4.98 | 9.93 | 14.7 | 17.3 |
| 32 | 1-1/4 | 44 | 51 | 60 | 33 | 35 | 43 | 56 | 62 | 75 | 3.89 | 5.28 | 10.59 | 17.0 | 18.0 |
| 40 | 1-1/2 | 51 | 60 | 64 | 35 | 43 | 44 | 62 | 75 | 84 | 4.01 | 5.56 | 11.07 | 17.8 | 18.4 |
| 50 | 2 | 60 | 64 | 83 | 43 | 44 | 52 | 75 | 86 | 102 | 4.27 | 7.14 | 12.09 | 19.0 | 19.2 |
| 65 | 2-1/2 | 76 | 83 | 95 | 52 | 52 | 64 | 92 | 102 | 121 | 5.61 | 7.65 | 15.29 | 23.6 | 28.9 |
| 85 | 3 | 86 | 95 | 106 | 64 | 64 | 79 | 109 | 121 | 146 | 5.99 | 8.84 | 16.64 | 25.9 | 30.5 |
| 100 | 4 | 106 | 114 | 114 | 79 | 79 | 79 | 146 | 152 | 152 | 6.55 | 11.18 | 18.67 | 27.7 | 33.0 |
| DN | NPS | End to End
Couplings W |
End to End
Caps P |
O.D. D | End Wall
Thick. G Minimum |
Length of
Thread. Minimum (1) |
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| Class 3000&Class 6000 | Class 3000 | Class 6000 | Class 3000 | Class 6000 | Class 3000 | Class 6000 | B | L2 | ||
| 6 | 1/8 | 32 | 19 | … | 16 | 22 | 4.8 | … | 6.4 | 6.7 |
| 8 | 1/4 | 35 | 25 | 27 | 19 | 25 | 4.8 | 6.4 | 8.1 | 10.2 |
| 10 | 3/8 | 38 | 25 | 27 | 22 | 32 | 4.8 | 6.4 | 9.1 | 10.4 |
| 15 | 1/2 | 48 | 32 | 33 | 28 | 38 | 6.4 | 7.9 | 10.9 | 13.6 |
| 20 | 3/4 | 51 | 37 | 38 | 35 | 44 | 6.4 | 7.9 | 12.7 | 13.9 |
| 25 | 1 | 60 | 41 | 43 | 44 | 57 | 9.7 | 11.2 | 14.7 | 17.3 |
| 32 | 1-1/4 | 67 | 44 | 46 | 57 | 64 | 9.7 | 11.2 | 17.0 | 18.0 |
| 40 | 1-1/2 | 79 | 44 | 48 | 64 | 76 | 11.2 | 12.7 | 17.8 | 18.4 |
| 50 | 2 | 86 | 48 | 51 | 76 | 92 | 12.7 | 15.7 | 19.0 | 19.2 |
| 65 | 2-1/2 | 92 | 60 | 64 | 92 | 108 | 15.7 | 19.0 | 23.6 | 28.9 |
| 80 | 3 | 108 | 65 | 68 | 108 | 127 | 19.0 | 22.4 | 25.9 | 30.5 |
| 100 | 4 | 121 | 68 | 75 | 140 | 159 | 22.4 | 28.4 | 27.7 | 33.0 |
Why Choose Us?
Astromet Steels and Engineering offers wonderful metallic products and exceptional engineering answers. Known for precision and reliability, we provide substances like stainless steel and nickel alloys tailor-made to numerous commercial desires. Trust us for excellence and innovation in each project.
Unwavering Quality: We prioritize stringent exceptional management measures to ensure each fitting meets the best requirements.
Extensive Inventory: We maintain a vast inventory of Stainless Steel 304 Pipe Fittings in numerous sizes, schedules, and types to meet various desires.
Customizable Solutions: We offer custom fabrication offerings to create fittings tailor-made to your unique assignment requirements.
Reliable Service: Our devoted group is dedicated to presenting brilliant customer service and technical support during the entire method.
Contact Us Today
With Astromet Steel and Engineering, you may agree with that you’re getting top-satisfactory Stainless Steel 304 Pipe Fittings that meet industry requirements and exceed your expectancies. Whether you want buttweld, threaded, or socketweld fittings, we have the answer for your industrial desires.
Experience the distinction of running with a dependable and official dealer of Stainless Steel 304 Pipe Fittings. Contact us today to talk about your necessities and discover how we can help you in attaining your challenge goals.
