What is SMO-254 Tube ?

SMO 254 Tube is a registered trademark (of Special Metals Corporation) referring to a family of austenitic SMO 254-chromium super alloys, SMO 254 Seamless Tube is typically used in applications where high temperatures are present due to a thick, stable passivating oxide layer which is formed. Inconel® is a SMO 254-based alloy with superior corrosion resistance and temperature performance to stainless steel. Alloys 254 / 254 SMO / 6 Mo Tubing is a material that is specifically optimized for some of the toughest use conditions. SMO 254 seamless tube alloys or superalloys are SMO 254-based alloys that exhibit traits such as high resistance to corrosion, oxidation, carburization, pitting, crevice, corrosion cracking, and high temperature strength. SMO 254 High-Pressure Tube are generally known for their resistance to oxidation and ability to maintain their structural integrity in high temperature atmospheres.

Reliable Steel Distributors is Manufacturer of SMO 254 Instrumentation Tubes in india also Exports SMO 254 Plates since 1997, in 1980 We were incorporated as a Supplier of SMO 254 Tube & we became stocking Distributor of SMO 254 High-Pressure Tube in India. later in year 1990, we were recognised as a leading Distributor of SMO 254 Seamless Tube in India. we started stocking SMO 254 seamless tube of other manufacturers of Stainless Steel Plates and Sheet in Japan & Europe like Kobelco, Sandvik, Sanyo Special Steels & Wuxi, Our widest stock of Alloys 254 / 254 SMO / 6 Mo Tubing enable us for prompt delivery to Middle east, Gulf countries, far east asian countries in any emergency.

SMO 254 Tube Specification


Size 15 NB to 150 NB IN
Type Seamless / ERW / Welded / Fabricated / Hollow / LSAW Pipes
Wall thickness 035″ –.095′, (special wall thicknesses available)
Schedule SCH5, SCH10, SCH40, STD, SCH80, SCH160
Finish Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Form Round, Square, Rectangular, Hydraulic, Straight or ‘U’ bent Tubes Etc.
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Treaded
Marking All 254 SMO tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)

Types Out diameter Wall thickness Length
NB Sizes (in stock) 1/8” ~ 8” SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 Upto 6 Meters
Seamless (Custom Sizes) 5.0mm ~ 203.2mm As per requirement Upto 6 Meters
Welded (in Stock + Custom Sizes) 5.0mm ~ 1219.2mm 1.0 ~ 15.0 mm Upto 6 Meters

SMO 254 Tube Sizes


Wall Sizes ( O.D.)
.010 1/16″ , 1/8″ , 3/16″
.020 1/16″ , 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″
.012 1/8″
.016 1/8″ , 3/16″
.028 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 3/4″ , 1″ , 1 1/2″ , 2″
.035 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 7/16″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″
.049 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/8″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″
.065 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 3/4″ , 2″ , 2 1/2″ , 3″
.083 1/4″ , 3/8″ , 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 7/8″ , 2″ , 2 1/2″ ,3″
.095 1/2″ , 5/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″
.109 1/2″ , 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″
.120 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 2 1/4″ , 2 1/2″ , 3″
.125 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 3″ , 3 1/4″
.134 1″
.250 3″
.375 3 1/2″

  • SMO 254 flex Tube
  • SMO 254 Hollow Tube
  • SMO 254 Alloy Custom Tube
  • SMO 254 Bush Hex Tube
  • SCH40 SMO 254 Tube
  • Custom SMO 254 Tube
  • SMO 254 Thick Wall Tube
  • SMO 254 Round Tube
  • SMO 254 Alloy Round Tube
  • SMO 254 Alloy Thick Wall Tube
  • SMO 254 clad Tube
  • ASTM B167 SMO 254 Custom Tube
  • ASTM B167 SMO 254 Seamless Tube
  • SMO 254 lined Tube
  • SMO 254 welded Tube
  • ASTM B167 SMO 254 Round Tube
  • ASTM B517 SMO 254 Thin Wall Tube
  • ASTM B517 SMO 254 Thick Wall Tube
  • SMO 254 Alloy Thin Wall Tube
  • SMO 254 Thin Wall Tube

Why Choose Reliable Steel Distributors ?

  • We are dominant Super Duplex Ferralium 255 Pipes & Tubes Manufacturers in India
  • We are ISO 9001:2008 Certified Super Duplex Ferralium 255 Pipes & Tubes Suppliers in India
  • We are Renowned Super Duplex Ferralium 255 Pipes & Tubes Exporters in India
  • We are Supreme Super Duplex Ferralium 255 Pipes & Tubes Distributors in India
  • Best Quality Super Duplex Ferralium 255 Pipes & Tubes Traders in India
  • Largest Super Duplex Ferralium 255 Pipes & Tubes Stockist in India
  • Best Price Super Duplex Ferralium 255 Pipes & Tubes Wholesaler in India
  • Well Known Brand of Super Duplex Ferralium 255 Pipes & Tubes Importers in India
  • We are 5th Largest Super Duplex Ferralium 255 Pipes & Tubes Stockholder in India
  • We are Reputed Super Duplex Ferralium 255 Pipes & Tubes Manufacturer in Mumbai, Maharashtra
  • We are Leading Super Duplex Ferralium 255 Pipes & Tubes Manufacturers in Rajkot, Gujarat