SMO 254 Pipe Fittings Specification
Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
SMO 254 Pipe Fittings covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations. All fittings shall undergo heat-treatment.
Chemical and product analyses shall be performed and shall conform to the required chemical composition in carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, and titanium. Tension test shall be done on the fitting material to determine the tensile properties such as yield strength and tensile strength. Fittings supplied under this specification shall be examined visually for surface discontinuities, surface checks, and mechanical marks.
Several grades of austenitic stainless steel alloys are included in this specification. Grades are designated with a prefix, based on the applicable ASTM/ASME or MSS standards. For each of the WP stainless grades, several classes of fittings are specified, to indicate whether seamless or welded construction was utilized. Class designations are also utilized to indicate the nondestructive test method and extent of nondestructive examination. A general summary of the fitting classes applicable to all WP grades of stainless steel follows. There are no classes for the CR grades.
CR | Corrosion resistant grade. S through WU Classes do not apply. |
WP-S | Seamless |
WP-W | Welded, RT or UT all pipe starting material welds made with filler metal. All fitting manufacturer welds except as excluded in A/SA403 paragraph 5.4.3. If UT is substituted for RT, all welds must be examined 100% for their length as required by A/SA403 paragraph 5.6 |
WP-WX | RT all welds with or without filler metal. |
WP-WU | UT all welds with or without filler metal. |
WPgrade-grade-class | Insert grades (304-304L) and class (S,W,WX, or WU). Applies to fittings meeting all chemical and physical requirements of both grades. |
UNS S31600
SMO 254 Pipe 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.
316L Pipe Fittings the low carbon version of SMO 254 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 SMO 254 and 316L stainless steel.
The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures.
Compared to chromium-nickel austenitic stainless steels, 316L stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures.
Prosaic Steel and Alloy Supply Complete Range of Products in SMO 254 Pipe Fittings including Elbow, Tee, Reducer, End Caps, Nipple etc.
SMO 254 Pipe Fittings Range
Prosaic Steell and Alloys was established in 1985 and have 3 decades of experience in manufacturing SMO 254 pipe fittings and flanges in accordance to ASME B16.9/ B16.11 with commitment to provide world class quality to our customers at competitive price by using innovative production system and process.
Type | Seamless / Welded / Fabricated |
Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
Range | ½”NB to 48″NB in Sch 10s, 40s, 80s, 160s, XXS. |
Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
A403 Stainless Steel Pipe Fittings Specification | ||||
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A403 Stainless Steel Buttweld (B/W) Fittings Material | Size (in mm) |
Sch. & Swg. |
SS Fittings Specification | SS Pipe Fittings Items |
SMO 254 Stainless Steel Seamless Fittings | 15 NB to 300 NB |
Sch. 5 to Sch. XXs |
A-403 B/W ANSI B16.9 |
Bend (Long & Short) R=2D,3D,5D,10D Etc elbow ( 180o, 90o & 45o) T ee (Equal & Unequal) Reducer (Con & Ecc) CAP Stubend (Long & Short) Nipple (Barrel) |
SMO 254 Stainless Steel Welded [ERW] Fittings | 15 NB to 600 NB |
Sch. 5 to Sch. 80s |
A-403 B/W ANSI B16.9 |
Material | AISI 304, AISI 304L, AISI 304H, AISI 316, AISI 316L, AISI 316LN, AISI 316Ti, AISI 309, AISI 317, AISI 317L, ASTM A403 310S, AISI 321, AISI 321H, AISI 347, AISI 347H, AISI 410, AISI 420, AISI 446, AISI 202 DIN 1.4301/7, DIN 1.4401/4, DIN 1.4541, DIN 1.4571 |
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Value Added Service | Polish (Electro & Commercial) Heat Treatment Annealed & Pickled, Sand Blasting Machining Etc. |
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Standard | ASTM, ASME | ||||
End Connection | Butt Weld | ||||
Type | Straight, Seamless / Welded / Fabricated Stainless Fittings | ||||
Designation | A 403 Pipe Fittings, SA 403 Fittings | ||||
Dimension Standard | Manufacturing as per ASME/ANSI B16.9, ASME B16.25, ASME B16.28, ASME B16.49, MSS-SP-43 Fittings | ||||
Thickness | Sch 5s Fittings, Sch 10s Fittings, Sch 40s Fittings, Sch 80s Fittings, Sch 160s Fittings, Sch XXS Fittings manufacturers in India |
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Size | 1/2 Inch to 48 Inch | ||||
Two Joint / Two Halve Butt weld Fittings Size | 6" to 48" | ||||
Producing A403 Stainless Steel Pipe Fittings in form of : |
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Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom Pipe Bend | ||||
Manufacturing Specification: | ASME: ANSI B16.9, ANSI B16.28, ASME B16.25, MSS-SP-43, DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011, EN: EN10253-1, EN10253-2 | ||||
Procure Raw Materials from | Japanese Mills, European Mills, US Mills, Korean Mills | ||||
Other Form | A403 Stainless Steel Dairy Fitting |
% | 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 |
SMO 254 Pipe Fittings Packing and Shipment
SMO 254 Pipe 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 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 REDUCER - USD $ 150 ONWARDS |
SMO 254 CONCETRIC REDUCER - USD $ 150 ONWARDS |
SMO 254 ECENTRIC REDUCER - USD $ 150 ONWARDS |
SMO 254 TEE - USD $ 350 ONWARDS |
SMO 254 EQUAL TEE - USD $ 350 ONWARDS |
SMO 254 REDUCING TEE - USD $3150 ONWARDS |
SMO 254 END CAP - USD $ 150 ONWARDS |
ASTM A403 WP310/310s BEND - USD $ 150 ONWARDS |
ASTM A403 WP310/310s PIGABBLE BEND - USD $ 150 ONWARDS |
SMO 254 INDUCTION BEND - USD $ 150 ONWARDS |
SMO 254 LR BEND - USD $ 150 ONWARDS |
SMO 254 SR BEND - USD $ 150 ONWARDS |
SMO 254 NIPPLE - USD $ 150 ONWARDS |
SMO 254 BARREL NIPPLE - USD $ 150 ONWARDS |
SMO 254 CROSS - USD $ 150 ONWARDS |
SMO 254 STUB END - USD $ 150 ONWARDS |
SMO 254 LATERAL - USD $ 150 ONWARDS |
SMO 254 UNEQUAL TEE - USD $ 350 ONWARDS |
DIMENSIONS FOR STRAIGHT FITTINGS
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We export SMO 254 Pipe 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, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, 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 Pipe 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 Pipe Fittings in India & Overseas, offering a wide range of SMO 254 Pipe Fittings
Prosaic Steel and Alloys is Leading Manufacturer, Distributor, Exporter, Stockholder and Supplier of SMO 254 Pipe Fittings in United States of America (USA), Saudi Arabia, Italy, Netherlands, Germany, Canada, Singapore, Malaysia, Indonesia
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