254 SMO Suppliers

254 SMO Material

UNS S31254 and WNR 1.4547 Products Supplier and Stockist in India

254 SMO

Check Alloy 254 Chemical Composition and Equivalent here

254 SMO Chemical Composition

  • 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
    Tensile strength
    (% in 50mm)
    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 - - - -

SMO 254 Material Equivalent

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

Get SMO 254 Stainless Steel Here in Custom Forms and Shape at Best Price

Alloy 254 Forms in Stock

254 SMO Price Per Kg

Material Price In INR Price In USD
254 SMO (6Mo) ₹ 1600 - Per kg $ 20 - Per kg

Find 254 SMO UNS S31254 Long and Flat Product in Range Of Sizes, Refer specification

6MO Specification

Alloy 254 Pipe Fittings

Alloy 254 Pipe Fittings

  • Welded Fittings:1/2" - 48"
  • Seamless Fittings:1/2" - 10″
UNS S31254 Flanges

UNS S31254 Flanges

  • SCH: Sch 5 to XXS
  • NPS: 1/2" to 48"
Sheet and Plate

254 SMO Plate

  • Plate: 4.5 to 100 mm thik
  • Sheet: 0.02 to 4.0 mm thik
WNR 1.4547 Pipe

WNR 1.4547 Pipe

  • Pipe OD: 6.0 - 630mm
  • Tube OD: .035" to .065"
6Mo Round Bar

6Mo Round Bar

  • Length: 1- 6 meter
  • Diameter: 3 to 800mm
6 Moly Fastener

6 Moly Fastener

  • Metric sizes: M3 to M56
  • Imperial Sizes : 3/6" to 2"
Forged Fittings

Forged Fittings

  • Sizes: 1/8" to 4" NB 
  • Class: 2000 to 9000 LBS
Stainless Steel 254 Tube Fittings

Stainless Steel 254 Tube Fittings

  • Sizes:  3 to 50mm
  • Ends: Threaded, JIC, Welding
254 SMO Application

254 SMO Application

  • Equipment for handling of seawater
  • Hydraulic and instrument tubing
  • Equipment in pulp bleaching plants
  • Components in gas cleaning systems
  • Tanks and pipelines for chemicals with high halide contents
SMO 254 characteristics

SMO 254 characteristics

  • High resistance to general corrosion
  • High resistance to stress corrosion cracking
  • Excellent resistance to pitting and crevice corrosion
  • Higher strength than conventional austenitic stainless steels
  • Good weldability
Buy 254 SMO Stainless Steel Alloy Online and Save Your Cost For Various Application

254 SMO Stainless Steel is a super austenitic stainless steel alloy, with very high end molybdenum and nitrogen content with low carbon content. Alloy 254 SMO exhibits outstanding resistance to pitting, crevice corrosion, stress cracking, and fatigue corrosion. Due to high amount of Chromium, nitrogen and molybdenum content, Alloy 254 is considerably tougher than the usual austenitic grades with strength almost two-times that of 300 series stainless steels. It is also known for its high ductility and impact strength. Also Alloy 254 SMO is been regularly used in high chloride environments, due to its high level of molybdenum and nickel.


SMO 254 has been found to be more cost-effective replacement for high nickel and titanium alloys. It has a Pitting Resistance Equivalent (PREN) of > 42.5, and is also known to possess excellent workability as well. Alloy 254 has very low carbon content, hence it had very little risk of carbide precipitation during heating. Alloy 254 was specially developed for use in seawater and other aggressive chloride-bearing environments. Hence it possesses excellent resistance in water containing chloride and is suitable for use in sea water, as it can be exposed to such conditions for longer periods without getting affected from crevice corrosion. UNS S321254 possesses excellent weldability, which should be done without pre-heating. If done exactly, there will be no requirement for any subsequent heat treatment. Alloy 254 has low thermal conductivity and high thermal expansion. Welding without filler metals results in poor strength properties.


Siddhagiri Metals and Tubes are recognized globally as exporter of UNS S31254 products for more than 15+ years now to more than 70 countries worldwide. We are an ISO 9001:2015 certified company and CRISIL MSE 4 Rated, and our products are tested as per international standards and specifications to meet our client’s custom requirements. We have huge inventory of 254 SMO products which are manufactured as per different dimension standards and guidelines standards like ASTM, ASME, DIN, ANSI, WERKSTOFFE, EN, JIS, and BS.

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

  • Common Trade Names : 254 SMO Stainless Steel, SMO 254 Stainless Steel, 6Mo Stainless Steel, 6Moly Stainless Steel,254 SMO, Alloy 254, 6Mo, 6Moly, Alloy 254 SMO, Alloy ® 254 SMO, Super Alloy 254 SMO, Alloy Steel 254, Alloy Stainless Steel 254, 22Cr Alloy.
  • Specifications: UNS S31254, E.N 1.4547, WNR 1.4547, SIS 2378, F44.
  • Applications of 254 SMO: Food and chemical processing equipment, Petroleum production., Flue gas desulphurization scrubbers, Tall oil distillation columns, Desalination equipment, Saltwater handling, Pulp mill bleach systems, Offshore oil and gas production equipments.
  • Features of 254 SMO: Resistant to pitting and crevice corrosion, Very high resistance to chloride stress, corrosion cracking, Excellent impact toughness and high ductility, Excellent workability and weldability, Good general corrosion resistance and sulfide stress corrosion resistance, Lower coefficient of thermal expansion, and higher thermal conductivity, 50% stronger than 300-series austenitic stainless steels, Low carbon, hence less chance of carbide precipitation during heating.
  • Origin: Indian Origin, European Origin, Japanese Origin.
  • Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports.
  • Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests.

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