Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
SMO 254 specification covers forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves and parts for high-temperature service. After hot working, forgings shall be cooled to a specific temperature prior to heat treatment, which shall be performed in accordance with certain requirements such as heat treatment type, austenitizing/solution temperature, cooling media, and quenching. The materials shall conform to the required chemical composition for carbon, manganese, phosphorus, silicon, nickel, chromium, molybdenum, columbium, titanium. The material shall conform to the requirements as to mechanical properties for the grade ordered such as tensile strength, yield strength, elongation, Brinell hardness. All H grades and grade F 63 shall be tested for average grain size.
A Socket Weld is a pipe attachment detail in which a pipe is inserted into a recessed area of a Valve, fitting or flange. In contrast to buttweld fittings, Socket Weld fittings are mainly used for small pipe diameters (Small Bore Piping); generally for piping whose nominal diameter is NPS 2 or smaller.
To join pipe to Valves and fittings or to other sections of pipe, fillet-type seal welds be used. Socket Welded Joints construction is a good choice wherever the benefits of high leakage integrity and great structural strength are important design considerations.
Fatigue resistance is lower than that in butt-welded construction due to the use of fillet welds and abrupt fitting geometry, but it is still better than that of most mechanical joining methods.
SW Fittings are family of High Pressure Fittings are used in various industrial processes.
SMO 254 Forged Socket Weld Fittings the low carbon version of 316 and is immune from sensitisation (grain boundary carbide precipitation). Thus it is extensively used in heavy gauge welded components (over about 6mm). There is commonly no appreciable price difference between 316 and 316L stainless steel.
SMO 254 Forged Socket Weld Fittings is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels.
The molybdenum gives SMO 254 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments.
The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures.
Compared to chromium-nickel austenitic stainless steels, SMO 254 stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures.
Prosaic Steel and Alloy Supply Complete Range of Products in ASTM A182 F316L Forged Socket Weld Fittings including Elbow, Tee, Reducer, End Caps, Nipple etc.
SMO 254 Forged Socket Weld Fittings Range
Prosaic Steell and Alloys was established in 1985 and have 3 decades of experience in manufacturing SMO 254 Forged Socket Weld F fittings and flanges in accordance to ASMEB16.11 and MSS-SP-83 with commitment to provide world class quality to our customers at competitive price by using innovative production system and process.
| Material | : |
|
| Dimension | : | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Pressure | : | 3000LBS, 6000LBS, 9000LBS |
| Size | : | 1/8"~4" (DN6~DN100) |
| Types | Elbows 45 and 90 degrees, Tees, Crosses, Couplings, Half-Couplings, End or Pipe Caps |
Plugs and Bushings are not identified.
They may be used up through Class 6000 NPS
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| % | 316 | 316L | 316H | 316Ti |
| C | 0.0-0.07 | 0.0-0.03 | 0.04-0.08 | 0.0- 0.08 |
| Mn | 0.0-2.0 | 0-2.0 | 0.0-2.00 | 0.0-2.00 |
| Si | 0.0-1.0 | 0.0-1.00 | 0.0-1.00 | 0.0- 1.00 |
| P | 0.0-0.05 | 0.0-0.05 | 0-0.04 | 0.0-0.05 |
| S | 0.0-0.02 | 0.0-0.02 | 0.0-0.02 | 0.0-0.03 |
| Cr | 16.50-18.50 | 16.50-18.50 | 16.50-18.50 | 16.50- 18.50 |
| Mo | 2.00-2.50 | 2.00-2.50 | 2.00-2.50 | 2.00- 2.50 |
| Ni | 10.00-13.00 | 10.00-13.00 | 10.00-13.00 | 10.50- 14.00 |
| Ti | - | - | - | 0.40- 0.70 |
| Fe | balance | balance | balance | balance |
| Euronorm | UNS | BS | En | Grade |
| 1.4401 | S31600 | 316S31 | 58H | 316 |
| 1.4404 | S31603 | 316S11 | - | 316L |
| - | S31609 | 316S51 | - | 316H |
| 1.4571 | - | 320S31 | - | 316Ti |
| Grade | Tensile Str (MPa) min |
Yield Str 0.2% Proof (MPa) min |
Elong (% in 50mm) min |
Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 316 | 515 | 205 | 40 | 95 | 217 |
| 316L | 485 | 170 | 40 | 95 | 217 |
| 316H | 515 | 205 | 40 | 95 | 217 |
| Grade | Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Elec Resistivity (nΩ.m) |
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| 0-100°C | 0-315°C | 0-538°C | At 100°C | At 500°C | |||||
| 316/L/H | 8000 | 193 | 15.9 | 16.2 | 17.5 | 16.3 | 21.5 | 500 | 740 |
![]() ELBOW 90° This Elbows make 90° changes of direction in the run of pipe. |
![]() ELBOW 45° This Elbows make 45° changes of direction in the run of pipe. |
![]() TEE STRAIGHT This Tee makes 90° branch from the main run of pipe. |
![]() HALF-COUPLING The Half Coupling can be directly welded to the run pipe, to make a branch connection. |
![]() FULL-COUPLING A Full Coupling, joins pipe two pipe or to a nipple etc.. |
![]() REDUCING COUPLING The Reducing Coupling joints two different outside diameters of pipe. |
![]() REDUCER INSERT Socket Weld Reducer Inserts are manufactured to MSS SP-79. They enable quick and economic combinations of pipeline reductions to be made using standard Socket Weld fittings. |
![]() UNION (MSS SP-83) It is a screwed joint design and it consists of three interconnected pieces: two internally threads and a centerpiece that draws the ends together when rotated. Unions should be screwed tight before the ends are welded to minimize warping of the seats. |
![]() CROSS Crosses makes 90° branch from the main run of pipe. |
CAP (END CAP)Seals the end of pipe. |
![]() BOSS |
![]() BUSHING |
SMO 254 Forged Socket Weld Fittings is sleeved into plastic bag individually, pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.
SMO 254 Socket Weld Pipe Fittings packing will be according to international standard in bundles strapped by strips then into containers to avoid any damage.
Delivery: Within 10-25 days or asap if we have enough stock
| SMO 254 ELBOW - USD $ 150 ONWARDS |
SMO 254 LONG RADIUS ELBOW - USD $ 150 ONWARDS |
SMO 254 SHORT RADIUS ELBOW - USD $ 150 ONWARDS |
| SMO 254 45 ELBOW - USD $ 150 ONWARDS |
SMO 254 90 ELBOW - USD $ 150 ONWARDS |
SMO 254 180 ELBOW - USD $ 150 ONWARDS |
| SMO 254 1D ELBOW - USD $ 150 ONWARDS |
SMO 254 3D ELBOW - USD $ 150 ONWARDS |
SMO 254 5D ELBOW - USD $ 150 ONWARDS |
| SMO 254 BUSH - USD $ 150 ONWARDS |
SMO 254 BUSHING - USD $ 150 ONWARDS |
SMO 254 REDUCING COUPLING - USD $ 150 ONWARDS |
| SMO 254 TEE - USD $ 350 ONWARDS |
SMO 254 EQUAL TEE - USD $ 350 ONWARDS |
SMO 254 CROSS - USD $3150 ONWARDS |
| SMO 254 END CAP - USD $ 150 ONWARDS |
SMO 254 UNION - USD $ 150 ONWARDS |
SMO 254 INSERT - USD $ 150 ONWARDS |
| SMO 254 REDUCER INSERT - USD $ 150 ONWARDS |
SMO 254 FULL COUPLING - USD $ 150 ONWARDS |
SMO 254 HALF COUPLING - USD $ 150 ONWARDS |
| SMO 254 NIPPLE - USD $ 150 ONWARDS |
SMO 254 SWAGE NIPPLE - USD $ 150 ONWARDS |
SMO 254 CROSS - USD $ 150 ONWARDS |
| SMO 254 UNION - USD $ 150 ONWARDS |
SMO 254 BUSH - USD $ 150 ONWARDS |
SMO 254 UNEQUAL TEE - USD $ 350 ONWARDS |
Fittings are used wherever liquids, gases, chemicals and other fluids are created, processed, transported, or used. Range of industries is very wide, as shown below:
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| Common Dimensions | Elbows, Tees & Crosses | Laterals, Couplings & Caps | |||||||||||||||
| Nom. Pipe Size |
Min. Socket Dia. |
Nom. Bore Dia. |
A | B | C | D | E | F | G | H | J | K | L | M | N | O | P |
| PRESSURE CLASS 3000 | |||||||||||||||||
| 1/8 | 0.42 | 0.269 | 0.8 | 0.9 | 0.7 | 0.9 | 0.4 | 0.3 | 1.1 | 0.8 | 0.4 | 0.7 | |||||
| 1/4 | 0.555 | 0.364 | 0.8 | 0.9 | 0.7 | 0.9 | 0.4 | 0.3 | 1.1 | 0.9 | 1.62 | 0.7 | 1.25 | 0.3 | 0.4 | 0.9 | 0.8 |
| 3/8 | 0.69 | 0.493 | 0.9 | 1.1 | 0.7 | 1.1 | 0.5 | 0.3 | 1.1 | 1.1 | 1.88 | 0.8 | 1.44 | 0.4 | 0.4 | 1.3 | 0.8 |
| 1/2 | 0.855 | 0.622 | 1.1 | 1.3 | 0.8 | 1.3 | 0.6 | 0.4 | 1.3 | 1.3 | 2.06 | 0.8 | 1.62 | 0.4 | 0.4 | 1.3 | 0.8 |
| 3/4 | 1.065 | 0.824 | 1.3 | 1.5 | 1 | 1.5 | 0.8 | 0.5 | 1.5 | 1.5 | 2.53 | 1 | 2 | 0.4 | 0.6 | 1.5 | 1 |
| 1 | 1.33 | 1.049 | 1.4 | 1.8 | 1.1 | 1.8 | 0.9 | 0.6 | 1.6 | 1.9 | 2.94 | 1.1 | 2.38 | 0.5 | 0.6 | 1.8 | 1 |
| 1 1/4 | 1.675 | 1.38 | 1.7 | 2.3 | 1.2 | 2.3 | 1.1 | 0.7 | 1.6 | 2.3 | 3.44 | 1.3 | 2.81 | 0.6 | 0.6 | 2.3 | 1.1 |
| 1 1/2 | 1.915 | 1.61 | 1.9 | 2.5 | 1.3 | 2.5 | 1.3 | 0.8 | 1.6 | 2.5 | 3.88 | 1.4 | 3.19 | 0.7 | 0.6 | 2.5 | 1.1 |
| 2 | 2.406 | 2.067 | 2.3 | 3.1 | 1.7 | 3.1 | 1.5 | 1 | 2.1 | 3 | 4.69 | 1.6 | 3.88 | 0.8 | 0.7 | 3.1 | 1.3 |
| 2 1/2 | 2.906 | 2.469 | 2.9 | 3.6 | 2 | 4 | 1.6 | 1.1 | 2.1 | 3.6 | 6.88 | 2.1 | 5.94 | 1.2 | 0.7 | 3.6 | 1.3 |
| 3 | 3.535 | 3.068 | 3.3 | 4.3 | 2.4 | 4.6 | 2.3 | 1.3 | 2.1 | 4.4 | 8.5 | 2.5 | 7.25 | 1.3 | 0.7 | 5.1 | 1.4 |
| 4 | 4.545 | 4.026 | 4.2 | 5.8 | 3.1 | 5.8 | 2.6 | 1.6 | 2.4 | 5.5 | 13.6 | 4 | 12.1 | 2.5 | 0.8 | 6.8 | 1.6 |
| PRESSURE CLASS 6000 | |||||||||||||||||
| 3/8 | 0.69 | 0.344 | 1.1 | 1.3 | 0.9 | 1.3 | 0.6 | 0.4 | 1.1 | 1.3 | 2.12 | 0.9 | 1.5 | 0.3 | 0.4 | 1.3 | 0.9 |
| 1/2 | 0.855 | 0.464 | 1.3 | 1.5 | 1 | 1.5 | 0.8 | 0.5 | 1.3 | 1.5 | 2.56 | 1 | 2 | 0.4 | 0.4 | 1.5 | 0.9 |
| 3/4 | 1.065 | 0.612 | 1.5 | 1.8 | 1.1 | 1.8 | 0.9 | 0.6 | 1.5 | 1.8 | 3 | 1.1 | 2.38 | 0.5 | 0.6 | 1.8 | 1.1 |
| 1 | 1.33 | 0.815 | 1.7 | 2.3 | 1.3 | 2.3 | 1.1 | 0.7 | 1.6 | 2.3 | 3.5 | 1.3 | 2.81 | 0.6 | 0.6 | 2.3 | 1.2 |
| 1 1/4 | 1.675 | 1.16 | 2 | 2.5 | 1.3 | 2.5 | 1.3 | 0.8 | 1.6 | 2.5 | 3.94 | 1.4 | 3.19 | 0.7 | 0.6 | 2.5 | 1.2 |
| 1 1/2 | 1.915 | 1.338 | 2.3 | 3.1 | 1.7 | 3.1 | 1.5 | 1 | 1.6 | 3 | 4.75 | 1.7 | 3.88 | 0.8 | 0.6 | 3.1 | 1.3 |
| 2 | 2.406 | 1.687 | 2.5 | 3.4 | 1.8 | 3.4 | 1.6 | 1.1 | 2.1 | 3.6 | 6.88 | 2.1 | 6 | 1.3 | 0.7 | 3.6 | 1.4 |
| 2 1/2 | 2.906 | 2.125 | 3.2 | 4 | 2 | 4 | 2.3 | 1.3 | 2.1 | 4.3 | 8.5 | 2.5 | 7.5 | 1.5 | 0.7 | 5.1 | 1.4 |
| 3 | 3.535 | 2.624 | 3.7 | 4.8 | 2.4 | 4.6 | 2.5 | 1.4 | 2.1 | 5 | 8.5 | 2.5 | 7.25 | 1.3 | 0.7 | 5.1 | 1.6 |
| 4 | 4.545 | 3.438 | 4.5 | 6 | 3.1 | 5.8 | 2.6 | 1.6 | 2.4 | 6.3 | 13.6 | 4 | 12.1 | 2.5 | 0.8 | 6.8 | 1.8 |
All dimensions given in inches.
Class 3000 fittings rated same as Sch. 80.
Class 6000 fittings rated same as Sch. 160 pipe.
SMO 254 Forged Socket Weld Fittings Export Countries
We export SMO 254 Forged Socket Weld Fittings to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherlands, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc.
Prosaic Steel and Alloys is a well known worldwide exporter of SMO 254 Forged Socket Weld Fittings, Prosaic Steel and Alloys is committed to provide each and every customer with the highest standard of customer service. We deals in SMO 254 Socket Weld Fittings in India & Overseas, offering a wide range of SMO 254 Forged Socket Weld Fittings
Prosaic Steel and Alloys is Leading Manufacturer, Distributor, Exporter, Stockholder and Supplier of SMO 254 Forged Socket Weld Fittings in United States of America (USA), Saudi Arabia, Italy, Netherlands, Germany, Canada, Singapore, Malaysia, Indonesia