SMO 254

SMO 254 Stainless Steel Pipes, Tubes, 6-Moly Fittings, 254 SMO Flanges, Tube Fittings, Alloy 254 Pipe Fittings | Manufacturer, Supplier, Exporter

SMO 254 is austenitic stainless steel product that is designed for the maximum resistant to crevice corrosion and pitting. It comes with high levels of molybdenum, chromium, nitrogen and is great for high chloride environments like bleach plants and chloride processing streams. At Ritinox Overseas, we are ready to supply, manufacture, stock, distribute and also export 254 SMO along with other products like SMO 254 pipe fittings, SMO 254 forge fittings, SMO 254 tube fittings, SMO 254 weldolets, SMO 254 flanges, SMO 254 seamless pipes and SMO 254 seamless tubes. We manufacture and export and distribute and are suppliers of various metal products in a wide range. They are manufactured in the various material specification and dimension standards based on the application and requirement. Readily applied in a range of industries, the products are well accepted and liked by various kinds of industries all over the world.
The other trade name for SMO 254  is UNS S31254.

Distributor, Stockist and Stockholder of UNS S31254, WNR 1.4529, EN 1.4547 | 6 Mo Products

254 SMO Sheet and Plate Ready Stock |6 Mo SMO 254 Flanges Manufacturer from India

In what forms is 254 SMO Available at Ritinox Overseas?

  1. Fittings (stub-ends, elbows, long welding necks, weld-necks, reducers, blinds, tees, crosses, pipe nipples, pipe fittings, tube fittings, caps, returns)
  2. Plate
  3. Pipe & Tube (welded & seamless)
  4. Wire
  5. Flanges (Weld Neck, Blind, Lap Joint, Threaded, Orifice, Socket Weld, Slip on)
  6. Bar
  7. Sheet

Product Specifications:

Fittings: ASTM A182
Bar: ASTM A276, A479, EN 10088-3
Welded tube and pipe: ASTM A249, A269 , A312, A358, A409
Forged products: ASTM A473
Seamless tube and pipe: ASTM A269, A213, A312, NFA 49-217, EN 10216-5

International Specifications:

UNS: S31254
AFNOR: Z1 CNDU 20.18.06AZ
NACE MR 0175
SS: 2378
W.Nr.: 1.4529
EN Name: X1CrNiMoCuN20-18-7
EN Number: 1.4547



SMO 254 that is used and manufactured is widely used for seawater applications like cooling water pipes, cooling seawater, ballast water systems, and systems fighting the fire. They are also widely seen in components in gas cleaning systems. One can see its applications in desalination equipment, food processing equipment, chemical processing equipment, pulp mill bleach systems and many more related to heavy industries. Due to their availability from the manufacturers in various forms like pipe fittings, tube fittings, flanges, seamless pipes and tubes, their application gets wider and can be seen in a wide range of industries.

SMO 254 Products

SMO 254 Pipe

254 SMO Pipe

SMO 254 Tubing

254 SMO Tubes and Tubing

SMO 254 Flange

254 SMO Flanges

SMO 254 Pipe Fittings

254 SMO Pipe Fittings

SMO 254 Forged Fittings

254 SMO Forging

SMO 254 Fasteners

254 SMO Fasteners

SMO 254 Tube Fittings

254 SMO Tube Fittings

SMO 254 Round Bars

254 SMO Bar

SMO 254 Sheet Plate

254 SMO Sheet Plate

Chemical Properties:

% C Cr Mn Mo N Ni P Si S
254 SMO 0.02 max min: 19.5
1.00 max min: 6.0
max: 6.5
min: 0.18
max: 0.20
min: 17.5
max: 18.0
0.03 max 0.80 max 1.01 max


Highlights of SMO 254

SMO 254 provides chloride resistance that is superior as compared to alloy 904L, alloy 20, alloy 825 and alloy G. the metal is compatible with austenitic stainless steels and is used also as an replacement in critical components In the construction where the type 316L has not stood up to the mark, the SMO 254 has been found to be adequate, and the prices are affordable. It comes with high resistance to the crevice, pitting and general corrosion and has very high resistance to chloride stress corrosion cracking. It has excellent impact toughness along with workability and weldability.

Why choose us?

We at Ritinox Overseas have been delivering quality and high-grade products to industries in need of metal products. Our high standards have proved to be popular and satisfied our new and old customers alike. Within a short span, we have been able to create and establish a long standing relationship with our valued customers and today are proud to present a state-of-the-art industry that is able to provide international standard products for several types of industries. Our service centers are found to be well equipped with trained and able staff to satisfy our customers.

*We are proud to offer service and have a record of 30 years of experience.

*We also provide stock options for those who are interested.

*Our price chart is reasonable and you will be satisfied with our final products.

*We believe in long term relations with our customer and work hard to cater to their needs.

Additional information

Our products are in demand throughout the engineering industries for its high quality, durability and reliability. The metals that we manufacture are at par with the international standards and also offer a guarantee on the products.

  • We deliver what we promise and give importance to packing to all customers far and near.
  • Every product comes with its markings and details so that the customers are satisfied.
  • We deliver on a timely basis and promptly as promised.
  • We also are popular as we provide custom based products according to the size and measurement.
  • Our prices are affordable, and we are popular due to the prices that we tag to our products.

Mechanical Properties:


Tensile Strength ksi (MPa) min

Yield Strength 0.2%
Offset ksi (MPa) min
Elongation –
% in
50 mm (min.)
(Brinell) MAX
(Rockwell B) MAX
254 SMO Sheet & Strip 100 (690) 45 (310) 35 223 96
254 SMO Plate 95 (655) 45 (310) 35 223 96


Other Trade Names:

UNS Number S31254
Werkstoff 1.4529
ASTM Specifications A479, A473, A240, F44
Other Common Names SMO 254, 254SMO, Alloy 254, EN 1.4547


254 SMO Pipe

ASTM and ASME Pipe Specifications
ASTM A312 254 SMO Welded Pipe ASME SA312
ASTM B269 254 SMO Seamless Pipe ASME SB269

Also known as:
ASTM A312 254 SMO Pipe, 254 SMO Pipe, ANSI B 36.19, 254 SMO Pipe, ASTM A312, Sch 10, 40, 80, XXS Steel pipe, ASTM B677 UNS N31254 Pipe, 254 SMO Hydraulic Pipe Exporter, 254 SMO Square Pipe Manufacturer, 254 SMO Round Pipe Supplier, 254 SMO Rectangle Pipe Stockist


254 SMO Tubing

ASTM and ASME Pipe Specifications
254 SMO Seamless Tube
254 SMO Welded Tube

Also known as:
254 SMO Tubes Exporter Manufacturer UNS N31254 ANSI B 36.19, SMO 254 Tubes ASTM A213, 254 SMO Seamless Tubes, Alloy 400 High-Pressure Tubes Manufacturer, 254 SMO Instrumentation Tubes Exporter, Alloy 400 Boiler Tubes Supplier, UNS N10276 Compression Tubes Stockist, 254 SMO Heat Exchanger Tubes Stockholder, Alloy 400 Bright Annealed Tubes Ready Stock, 254 SMO Cold Drawn Tubes, 254 SMO Electro Polished Tubes

254 SMO Flanges

Slip-on Raised Face Flange – SORF
Weld Neck Raised Face Flange – WNRF
Socket Weld Raised Face Flange – SWRF
Blind Raised Face Flange – BLRF
Lap Joint Raised Flange – LJRF
Long Weld Neck Raised Face Flange – LWNRF

Also known as:
254 SMO Flanges Supplier Exporter Manufacturer, UNS N31254 ASTM A182 ANSI B16.5, 254 SMO Raised Face Flange, 254 SMO Flat Face Flange, 254 SMO Ring Joint Flange, 254 SMO Socket Weld, Lap Joint, Weld Neck, Slip on, Long Weld Neck Flange


254 SMO Pipe Fittings

254 SMO Return Bend
254 SMO Pipe and End Cap
254 SMO Lap Joint, Long, Short, Stub End
254 SMO Equal, Reducing and Straight Cross
254 SMO Equal, Reducing and Straight Tee
254 SMO Reducing Outlet Crosses
254 SMO Collar
254 SMO Welded Elbows
254 SMO Lateral
254 SMO Short Radius Elbow 45°, 90° and 180°
254 SMO Long Radius Elbow 45°, 90° and 180°
254 SMO Swage, Pipe, Barrel, Reducing Nipple
254 SMO Seamless Elbows
254 SMO Concentric and Eccentric Reducers
254 SMO Long Radius and Piggable Bend
254 SMO Elbow 1D to 5D
254 SMO Reducing Outlet Tees

Also known as:
254 SMO Pipe Fittings Manufacturer Supplier UNS N31254 ASTM A403 ANSI B16.9 and 16.28 , Buttweld Fittings, Stainless Steel 321 Elbow, Tee, Reducer, Cross, Nipple, Cap, Bend, Collar, Insert

254 SMO Forged Fittings

254 SMO Socket-Weld Fittings
254 SMO Threaded Fittings
254 SMO Outlet Fittings

Also known as:
254 SMO Forged Fittings Supplier Exporter Manufacturer, UNS N31254 ASTM A473 ASME B16.11 / BS3799 , 254 SMO Forged Fittings Elbow, Tee, Reducer, Cross, Coupling, Nipple, Cap, Bend, Collar, Insert

254 SMO Fasteners


254 SMO Nuts
Insert Lock Nuts, Grades 2, Kep Nuts, Jam Nuts, Coupling Nuts, Acorn Nuts, Auto Lock Nuts, Square Nuts, Sleeve Nuts, Nylon, Wing Nuts, Hex Nuts, 2-H Heavy Hex Nuts, 5 & 8, Heavy Hex Nuts, Slotted Nuts, Miscellaneous Nuts

254 SMO Bolt
Square Bolts, Flange Bolts, Elevator Bolts, Structural Bolts, Shoulder Bolts, Heavy Hex Bolts, Tap Bolts, Stove Bolts, Hex Bolts, Toggle Bolts Scraper Blade Bolts, Hanger Bolts Plow Bolts, Draw Bolts

254 SMO Washer
Plain Washers, Flat Washers – USS, Fender Washers, A-325 Flat Washers, Square Washers, Flat Washers – SAE, Dome Plain Washers, Split Lock Washers, External Tooth Lock, Countersunk Washers, Bevel Washers, Ogee Washers, Dock Washers, Internal Tooth Lock

254 SMO Screw
Decking Screws, Cabinet Installation Screws, Drywall Screws, Metal to Wood Screws, Cement Board Screws, Floorboard Screws, Cap Screws, Dowel Screws, Concrete Screws, Sheet Metal Screws, Self Drilling Screws, Machine Screws, Resistant Screws, Socket Cap Screw

Also known as:
254 SMO Fasteners Manufacturer Supplier UNS N31254,  254 SMO Screw, Bolt, Nut, Stud, Washer


254 SMO Tube Fittings

Reducing Union, Male Union Tee, Male Elbow, Hexagon Bushings, Reducing Elbows 90 Deg, Adaptors, Female Elbows 45 Deg, Female Connectors, Female Tee, Union, Round Caps, Male Connectors, Pipe Caps, Male Tee, Hexagon Head Plugs Tapered, Hexagon Bushings, Cross, Hexagon Caps, Square Head Plugs, Reducing Bushing, Female Reducing Tee, Male Elbows 45 Deg, Pipe Plug

Also known as:
254 SMO Tube Fittings Manufacturer Supplier, UNS N31254 , 254 SMO Compression Tube Fittings, 254 SMO Ferrule Fittings, 254 SMO Double Ferrule, 254 SMO Connector, Single Ferrule Tube Fittings, Union, Elbow, Tee, Adapter, Ferrule, Cross, Plug


254 SMO Round Bars

ASTM A276 – 254 SMO Square Bar
ASTM A276 – 254 SMO Circle
ASTM A276 – 254 SMO Hex Bar
ASTM A276 – 254 SMO Rod
ASTM A276 – 254 SMO Hex Bar
ASTM A276 – 254 SMO Round Bar
ASTM A276 – 254 SMO Flat Bar

Also known as:
254 SMO Round Bar Manufacturer Supplier, ASTM A276, ASTM A479, Stainless Steel Hex bar, Flat Bar, Circle


254 SMO Sheet Plate

ASTM A240 254 SMO Sheet
ASTM A240 254 SMO Coil
ASTM A240 254 SMO Plate
ASME SA240 254 SMO Sheet
ASME SA240 254 SMO Coil
ASME SA240 254 SMO Plate

Also known as:
254 SMO Plate, 254 SMO Sheet, ASTM A240 UNS N31254, 254 SMO Plate, 254 SMO Sheet


We have supplied 254 SMO Products to the following cities:
Ulsan, Moscow, Milan, Brisbane, Toronto, Noida, Houston, Atyrau, Rio de Janeiro, Ankara, Sharjah, Aberdeen, Courbevoie, Kuwait City, Perth, Colombo, Calgary, Dammam, Baroda, Bogota, Gimhae-si, Navi Mumbai, Pune, Ernakulam, Jaipur, Vadodara, Coimbatore, Hong Kong, New York, Kuala Lumpur, Faridabad, Manama, Rajkot, Jamshedpur, Hanoi, Chiyoda, Seoul, Doha, Ahvaz, Lagos, Secunderabad, Granada, Port-of-Spain, Hyderabad, Chandigarh, La Victoria, Bangkok, Pimpri-Chinchwad, Chennai, Karachi, Thane, Singapore, Algiers, Istanbul, Tehran, Haryana, Howrah, Muscat, Riyadh, Ranchi, Dubai, Kolkata, London, Kanpur, Melbourne, Visakhapatnam, Ho Chi Minh City, Bengaluru, Madrid, Santiago, Mumbai, Jeddah, Al Khobar, Cairo, Sydney, Mexico City, Nashik, Abu Dhabi, Nagpur, Geoje-si, Dallas, Petaling Jaya, New Delhi, Edmonton, Bhopal, Indore, Lahore, Jakarta, Vung Tau, Busan, Caracas, Al Jubail, Montreal, Surat, Gurgaon, Ludhiana, Ahmedabad, Los Angeles, Thiruvananthapuram

Ritinox Overseas has exported 254 SMO Products to the following countries:
Israel, Greece, Belarus, India, Hungary, Iraq, New Zealand, Taiwan, Peru, Trinidad & Tobago,Tunisia, Yemen, Gambia, Austria, Libya, United States, Bulgaria, Nigeria, Estonia, Chile, Ireland, Iran, Sweden, Romania, Singapore, Thailand, Oman, Mexico, Indonesia, Poland, Gabon, Nepal, Finland, Angola, Hong Kong, Iran, Macau, Denmark, Zimbabwe, South Africa, United Kingdom, Nigeria, Poland, Russia, Argentina, Algeria, China, Philippines, Ecuador, Sri Lanka, France, Ghana, Azerbaijan, Brazil, Chile, Qatar, South Korea, Afghanistan, Serbia, Turkey, Kuwait, Ukraine, Saudi Arabia, Mongolia, Japan, Kazakhstan, Italy, Malaysia, Slovakia, Pakistan, Canada, Costa Rica, Belgium, Czech Republic, Australia, Portugal, Lithuania, Venezuela, Mexico, Kenya, Croatia, Norway, Lebanon, Bolivia, Puerto Rico, Vietnam, Netherlands, Egypt, Colombia, Morocco, Switzerland, Bangladesh, Germany, Bahrain, Tibet, United Arab Emirates, Jordan, Namibia, Spain, Bhutan