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Alloy 254 SMO Stainless Steel Manufacturer

Alloy 254 SMO Stainless Steel Supplier


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254 SMO Stainless Steel · 6Mo · 6 Moly · SMO 254 · Alloy 254 · UNS S31254 · WNR 1.4547

Alloy 254 SMO Stainless Steel also known as 6Mo / 6Moly is highly alloyed super austenitic stainless steel with low carbon and high molybdenum content, designed for maximum resistance to pitting, stress corrosion cracking and crevice corrosion.

SMO 254 also known as 254 SMO, Alloy 254, 6Mo and 6 Moly Stainless Steel comes with UNS S31254 and WNR 1.4547. 254 SMO Stainless Steel offers chloride resistance superior to that of Alloy 20, Alloy 825 and Alloy G. Alloy 254 is compatible with the common austenitic stainless steels. It is often used as a replacement in critical components of larger constructions where Type 316L or 317L has failed by pitting, crevice attack, or chloride stress corrosion cracking. 6Moly is suitable for high chloride environments, such as brackish water, seawater, pulp mill bleach plants, and other chloride process streams. Stainless Steel 254 SMO also has very good resistance to stress corrosion cracking. In new construction, 254 SMO has been found in many cases to be a technically adequate and more cost effective substitute for high nickel and titanium alloys. Alloy 254 SMO is substantially stronger than the common austenitic grades, with strength nearly twice that of 300 series stainless steel, but is also characterized by high ductility and impact strength. 6Mo is readily fabricated and welded. Due to its high levels of molybdenum and nickel, Alloy 254 SMO is frequently used in high chloride environments like Petroleum production, saltwater handling, food processing and chemical processing equipment, pulp mill bleach systems, flue gas desulfurization scrubbers and tall oil distillation columns.

Siddhagiri Metals and Tubes specializes in offering hard to find items in large or small quantity. Contact Us Today ! for more information on Alloy 254 SMO Stainless Steel.

Industry Names: 254 SMO, Alloy 254, 6Mo, 6 Moly, SMO 254.
Specifications: UNS S31254, E.N 1.4547, WNR 1.4547, SIS 2378, F44.
Applications: Petroleum production, Saltwater handling, Pulp mill bleach systems, Tall oil distillation columns, Desalination equipment, Food and chemical processing equipment, Flue gas desulphurization scrubbers, Offshore oil & gas production equipment.
Features: High resistance to pitting, crevice and general corrosion, Very high resistance to chloride stress corrosion cracking, 50% stronger than 300-series austenitic stainless steels, Excellent impact toughness, Excellent workability and weldability.

Siddhagiri Metals and Tubes is one of the leading Supplier, Manufacturer, Exporter & Stockist of superior quality Stainless Steel 254 SMO with UNS S31254 and WNR 1.4547. Siddhagiri Metals and Tubes is engaged in manufacturing & exporting of 254 SMO Stainless Steel in forms like SMO 254 Pipes, SMO 254 Tubes, SMO 254 Flanges, SMO 254 Pipe fittings, SMO 254 Tube fittings, SMO 254 Forged Fittings, SMO 254 Sheets, SMO 254 Plates, SMO 254 Rods, SMO 254 Bars, SMO 254 Olets, SMO 254 Fasteners and many more. We is a professionally managed company started by a team of dynamic young entrepreneurs. We is in the business of manufacturing & exporting of all types of industrial products like pipes & pipe fittings, flanges & Sheets that is used in various core industries. Having established ourselves and set up in the heart of India's commercial center Mumbai, we have built up adequate stock levels of all essential items within our scope of supply and is in position to offer immediate deliveries.


Siddhagiri Metals and Tubes supplies high quality 254 SMO Stainless Steel with UNS S31254 and WNR 1.4547 in forms like pipe, tube, flange, fittings, fasteners, bar, sheet plate, wire mesh.
Other Names: 254 SMO Stainless Steel, SMO 254 Stainless Steel, 6Mo Stainless Steel, 6Moly Stainless Steel
Category: Alloy 254, 6Mo, 6 Moly
Material: Austenitic Stainless Steel, 6 Molybdenum
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
Rating: 4.7/5 based on 62 customer reviews

254 SMO Stainless Steel Specifications and Standards

Grade Name Forging Grade North America France Germany European European Sweden USA
254 SMO F44 UNS S31254 AFNOR Z1 CNDU 20.18.06AZ Din 1.4547 E.N 1.4547 X1CrNiMoCuN20-18-7 SS2378 Alloy 254

Properties of Alloy 254 SMO Stainless Steel

  • Chemical Properties
    C P Mn N S Si Cr Ni Mo Cu
    MIN - - - 0.180 - - 19.500 17.500 6.000 0.500
    MAX 0.020 0.030 1.000 0.220 0.010 0.800 20.500 18.500 6.500 1.000
  • Mechanical Properties
    Yield Strength
    0.2% Proof
    (MPa)
    Tensile strength
    (MPa)
    Elongation
    (% in 50mm)
    Hardness
    (HV)
    MIN 300 650 35.00  
    MAX       230
  • Physical Properties
    Temperature °F 68 212 392 572 752
    Modulus of Elasticity psi x106 29 28 27 26 25
    Coefficient of Thermal            
    Expansion (68°F to T) x10-6/°F          
    Thermal Conductivity Btu/h ft°F 7.5 8.1 8.7 9.8 10.4
    Heat Capacity Btu/lb°F 0.12 0.124 0.129 0.133 0.136
    Electrical Resistivity Ωin x 10-6 33.5 35.4 37.4 40.6 43.3
    Density lb/in³ 0.287 - - - -
    Magnetic Permeability 1.003 1.003 - - - -

Forms of 6Moly Stainless Steel

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