254 SMO Stainless Pipe and Tube
S31254 · UNS S31254 · 6Mo superaustenitic (~20Cr-18Ni-6Mo-N)
Savoy Piping Inc. supplies 254 SMO — 6% molybdenum (6Mo / 6Moly) superaustenitic for severe chloride pitting and crevice corrosion.
Grade hub · A312 Seamless · A312 Welded · A213 · A269 · SS hub
What is 254 SMO?
254 SMO (UNS S31254): 6Mo superaustenitic (~20Cr-18Ni-6Mo-N). Mechanical guide: high PREN superaustenitic — confirm SA-312 / PO.
Typical applications
- Seawater and brine systems
- Flue-gas desulphurisation and scrubbers
- Aggressive chloride chemical process
Selection guidance
Select 254 SMO when 904L/317L PREN is insufficient. Cross-check vs super duplex 2507 for strength + chloride duty.
6Mo vs super duplex: austenitic toughness vs duplex strength/cost — design decides.
SMO 254 Stainless Steel Pipes and Tubes Pipes range
| SMO 254 Stainless Steel Pipes and Tubes Specification | ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312 |
| SMO 254 Stainless Steel Pipes and Tubes Grades | 202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC. |
| SMO 254 Stainless Steel Pipes and Tubes Type | Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish |
| SMO 254 Stainless Steel Pipes and Tubes Outer Diameter Size | Seamless - 1/2" NB TO 18" NB Welded / ERW- 1" NB TO 16" NB EFW - 8" NB TO 110" NB |
| SMO 254 Stainless Steel Pipes and Tubes Wall Thickness | Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness) |
| SMO 254 Stainless Steel Pipes and Tubes Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| SMO 254 Stainless Steel Pipes and Tubes Ends | Plain Ends / Beveled Ends |
| SMO 254 Stainless Steel Pipes and Tubes Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
| SMO 254 Stainless Steel Pipe & Tubes Coating | Electropolish, Mechanical Polish, Satin Finish, PassivateD |
| SMO 254 Stainless Steel Pipe & Tubes Other Testing | Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiograph HIC Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc |
| SMO 254 Stainless Steel Pipe & Tubes Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards includingASTM And ASME |
| SMO 254 Stainless Steel Pipe & Tubes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| SMO 254 Stainless Steel Pipe & Tubes Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| SMO 254 Stainless Steel Pipe & Tubes Shipment & Transportation | By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 4 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
| SMO 254 Stainless Steel Pipe & Tubes Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
Chemical Composition of SMO 254 Stainless Steel Pipes and Tubes
| C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
| ≤0.020 | ≤0.80 | ≤1.00 | ≤0.030 | ≤0.010 | 20 | 18 | 6.1 | 0.20 | 0.7 |
Mechanical Properties of SMO 254 Stainless Steel Pipes and Tube
The following table shows Mechanical Properties of stainless steel grade 254 SMO™.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 680 MPa | 98600 psi |
| Yield strength | 300 MPa | 43500 psi |
| Modulus of elasticity | 195 GPa | 28300 ksi |
| Shear modulus | 75 GPa | 1090 ksi |
| Poisson’s ratio | 0.30 | 0.30 |
| Elongation at break | 50 % | 50 % |
| Hardness, Brinell | 210 | 210 |
SMO 254 Stainless Steel Pipes and Tubes Physical Properties
The physical properties of stainless steel grade 254 SMO™ are tabulated below.
| Specific Heat (0-100°C) | 500 | J.kg-1.°K-1 |
| Thermal Conductivity | 14 | W.m -1.°K-1 |
| Thermal Expansion | 16.5 | mm/m/°C |
| Modulus Elasticity | 196 | GPa |
| Electrical Resistivity | 8.5 | μohm/cm |
| Density | 8.0 | g/cm3 |
Thermal Properties for SMO 254 Stainless Steel Pipes and Tubes
The thermal properties of stainless steel grade 254 SMO™ are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@20-100°C/68-212°F) | 16.5 µm/m°C | 9.17 µin/in°F |
| Thermal conductivity | 14 W/mK | 97.2 BTU in/hr.ft².°F |
SMO 254 Stainless Steel Pipes and Tubes Applications
Stainless steel grade 254 SMO™ is used in the following areas:
- Saltwater handling
- Tall oil distillation columns
- Flue gas desulfurization scrubbers
- Components used in petroleum production
- Food processing equipment
- Process equipment in chemical industry
- Bleaching equipment in the pulp and paper industry
- Flue-gas cleaning
- Desalination
- Heat exchangers
- Equipment for handling of seawater, such as, seawater cooling, cooling water Pipes, ballast water systems, firefighting systems etc.
- Hydraulic and instrumention tubing
- Equipment in pulp bleaching plants
- Components in gas cleaning systems
- Tanks and pipelines for chemicals with high halide contents
Trademark information: 254 SMO is a trademark owned by Outokumpu OY.
Frequently asked questions — 254 SMO Pipe & Tube
What is 254 SMO?
254 SMO (UNS S31254) is 6% molybdenum (6Mo / 6Moly) superaustenitic for severe chloride pitting and crevice corrosion. Chemistry: 6Mo superaustenitic (~20Cr-18Ni-6Mo-N).
Which product specs?
Pipe A312 / A358 EFW; tube A213 / A269 (and A249 welded where specified).
Typical strength?
high PREN superaustenitic — confirm SA-312 / PO
Related grades?
6Mo vs super duplex: austenitic toughness vs duplex strength/cost — design decides.
Supplying 254 SMO Stainless Steel Pipes and Tubes to Countries -
We export 254 SMO Stainless Steel Pipes and Tubes 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
Savoy Piping Inc. is a well known worldwide Exporter of 254 SMO Stainless Steel Pipes and Tubes is committed to provide each and every customer with the highest standard of customer service. We deal in Alloy 254 Stainless Steel Pipes and Tube in India and Overseas, offering a wide range of SMO 254 Stainless Steel Pipes and Tubes