254 SMO Welded Pipe Suppliers / Seamless Pipe Manufacturer / ERW Pipe | 6Mo Pipe | ASTM A312 UNS S31254

6Mo Pipe - Seamless, ERW and Welded Exporters

SMO 254 Pipe | SMO 254 Seamless Pipe | SMO 254 Welded Pipe | SMO 254 ERW Pipe | SMO 254 EFW Pipe | 1.4547 SMO 254 Pipe | SMO 254 Seamless Steel Pipe | SMO 254 Welded Steel Pipe | SMO 254 EFW Pipe | SMO 254 Round Pipe | SMO 254 Square Pipe | SMO 254 Rectangle Pipe

Oshwin Overseas is a leading Manufacturer, Suppliers and Exporter of 254 SMO Pipe (ASTM A312 S31254). We offer a wide range of high-quality ASTM A312 (ASME SA312) UNS S31254 Pipe Seamless Pipes, S31254 Pipe ERW Pipe and S31254 Pipe Welded Pipes, which are known for their durability and corrosion resistance. S31254 Pipe – SMO Pipe Seamless Pipe, ERW Pipe and Welded Pipes (A312 S31254) are available in various specifications, shapes and sizes. Our 254 SMO Pipe Seamless Pipes can be offered in size range 1/8”NB to 36”NB whereas S31254 Pipe ERW Pipe and SMO Pipe Welded Pipes up to 48”NB (Custom OD at request). Oshwin Overseas also offer a range of allied services including Cutting, Welding, Electro Polishing, Shot-Blasting and much more.

All SMO Pipe Stainless Steel Pipe (SA 312 UNS S31254) such as Seamless Pipes (Seamless Steel Pipe), ERW Pipe and Welded Pipes are offered with a NACE 3.1 Certification, Mill Test Certification and ISO 17025 Standards by a Government of India approved Laboratory. Positive Material Identification is done on all raw materials procured at Oshwin Overseas.

The special properties of SMO Pipe (6Mo Pipe) – Pipe Seamless, Pipe ERW and Pipe Welded make them useful in services such as in marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. Typical uses of S31254 SMO Pipe – Seamless Steel Pipe, erw Steel Pipe and Welded Steel Pipe are in oil and gas equipment, offshore technology, seawater desalination plants, chemical industry, flue-gas cleaning, desalination plants and seawater systems and pulp and paper industry. Other uses of S31254 Pipe are in cargo tanks and Pipe systems in chemical tankers, firewalls and blast walls on offshore platforms, bridges, storage tanks, pressure vessels, reactor tanks and heat exchangers and rotors, impellers and shafts.

SMO 254 Pipe Suppliers | SMO 254 Pipe Manufacturer | SMO 254 Pipe Exporter | SMO 254 Pipe Distributor | SMO 254 Pipe Stockist

A lot of emphases is placed on the packing and packaging. The SMO Pipe Stainless Steel Pipe are packed in wooden corrugated boxes foiled in plastic wraps and bubble wraps. Caps / Bushing are made available to the ends on request of the buyer. We Export ASTM A312 / ASME SA312 SMO Pipe Seamless Pipes / Seamless Steel Pipe and S31254 Pipe Welded Pipes to Petrochemical Plants, Nuclear Power Projects, Oil & Gas Industries in South Africa, Australia, New Zealand, Gambia, Ghana, Guinea, Nigeria, Egypt, Morocco, Sudan, Kenya, Mozambique, Zimbabwe, Madagascar, Tunisia, Saudi Arabia, Kuwait, Qatar, U.A.E & Turkey.

254 SMO Stainless Steel Pipe (ASTM A312 UNS S31254) Specification:-

Standard / Specifications : ASTM A312 / ASME SA312 (A312 UNS S31254 / A312 S31254 / SA 312 S31254 / ASTM A312 S31254).

Grades : EN 1.4547 / UNS S31254 (F44).

Types of Pipes: Seamless / Welded / Fabricated.

Forms of Pipes: Round Pipe, Square Pipe, Rectangle Pipe.

Size: 1/8” to 48”, Seamless Pipes up to 24”.

Wall Thickness: 0.08mm – 1.5 mm.

Outer Diameter : 0.3mm – 10mm.

Thickness : 0.4mm up to 30.00 mm, Sch 5, Sch 10S, Sch 10, Sch 30, Sch 40S, Sch 40, Sch 80, Sch 80S, Sch XS, Sch 160, Sch XXH.

Hardness: Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.

Surface Finishing: Bright, Polish & Black.

Our SMO 254 Stainless Steel Pipe, conforms to NACE MR0175/ISO 15156.

Types Of 254 SMO Pipe 

254 SMO Seamless Pipe

SMO 254 Seamless Pipe

Seamless Steel Pipe is made from a solid round steel ‘billet’ which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. Seamless Pipe don’t have a weld seam. In Seamless pipe, there are no welding or joints and is manufactured from solid round billets. Seamless pipe is manufactured by extruding the metal to the desired length and does not have any joint in its cross-section through-out its length.

The seamless pipe is finished to dimensional and wall thickness specifications in sizes from 1/8 inch to 26 inch OD. Oshwin Overaeas is one of the leading seamless pipe manufacturer in India. We are specialized in Seamless Pipe manufacturing. Seamless pipes have better ovality, or roundness, than welded pipes.

S31254 SMO 254 Welded Pipe

SMO 254 Welded Pipe

SMO 254 Welded Pipe is made by forming flat products (strip, sheet or plate) into the desired shape, in this case, normally round. Once the desired shape has been achieved, a high energy source is used to melt the metal locally at the weld joint. It is squeezed together and allowed to solidify, forming a weld bead. The high energy source may be an electric arc, a plasma arc, a laser beam, or even an electron beam.

Welded pipes are typically more cost-effective than their seamless equivalents. Welded pipes are usually more readily available than seamless. The longer lead time required for seamless pipes can not only make timing problematic, but it also allows more time for the price of the materials to fluctuate. The wall thickness of welded pipes is generally more consistent than that of seamless pipes. The internal surface of welded tubes can be checked before manufacturing, which isn’t possible with seamless.

254 SMO ERW Pipe

SMO 254 ERW Pipe

SMO 254 ERW Pipe means Electric Resistance Welded Pipes. ERW Steel Pipe is made from HR Coils. Electric Resistance Welding (ERW) pipe is manufactured by rolling metal and then welding it longitudinally across its length. A plate rolled to become a pipe and welded using Electric Resistance Welding process. Usually for for high diameter. (cheapest process avaiable).  ERW pipe have a welded joint in its cross-section.

ERW (Electric Resistance Welded) pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured upto 24” OD. ERW steel pipes and tubes are used in various engineering purposes, fencing, scaffolding, line pipes etc. ERW steel pipes and tube are available in various qualities, wall thicknesses, and diameters of the finished pipes.

SMO 254 Pipe Forms

254 SMO Rectangular Pipe
254 SMO Rectangle Pipe
254 SMO Round Pipe
GradeTypeUnified Numbering System (UNS)Forgings GradesWerkstoff-nr.EuronormAFNORDIN Standards
6Mo grade254 SMOS31254F441.4547en 1.4547FeMi35Cr20Cu4Mo2Z1 CNDU 20.18.06Azdin 1.4547
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SMO 254 Seamless Pipe / SMO 254 Welded Pipe / SMO 254 ERW Pipe Suppliers Manufacturer Stockist
SMO 254 Seamless / Welded / ERW Pipe UNS S31254 at best price from Oshwin Overseas. Contact for Best Price.
Brand: Oshwin Overseas
Manufacturer: Sumitomo , Mustu Steel - Japan. Tubacex - Spain, Girnar metals and tubes - India
Model: 254 SMO Seamless Pipe, 254 SMO Welded Pipe
Product ID: OSH - 254P
Characteristics of SMO 254 Stainless Steel
  • High Resistance to uniform corrosion.
  • High Resistance to pitting & crevice corrosion.
  • High Resistance to stress corrosion cracking & corrosion fatigue
  • High mechanical strength
  • High Resistance to abrasion & erosion
  • High Resistance to Fatigue
  • High energy absorption
  • Low thermal expansion
  • Good weld ability with care in thick sections
  • Useful up to 600°F


Applications of SMO 254 Stainless Steel
  • Chemical Processing Industry – Transport and Storage, pressure vessels, tanks, piping, and heat exchangers.
  • Oil and Gas exploration and processing equipment – piping, tubing, and heat exchangers
  • Marine Industry and Seawater systems – Cargo Tanks for Ships, High chloride environments,
  • FGD / Effluent Scrubber Systems.
  • Paper and Pulp Industry Digesters, Bleaching equipment and Stock-Handling Systems, Chip Pre-steaming vessels.
  • Food Processing Equipment.
  • Flue gas desulfurization / cleaning equipment
  • Rotors, fans, shafts, and press rolls requiring combined strength and corrosion resistance
  • Biofuels Plant, Desalination plants
  • Firewalls and blast walls on offshore platforms


SMO 254 UNS S312540.02 max19.5-20.51.0 max6.0-6.517.5-18.50.18-0.220.03 max0.8 max0.01 max
0.2% Proof Stress (N/mm2 ) [ksi] minimum300 [43.5]
Tensile Strength (N/mm2) [ksi] minimum650
Elongation (%) minimum35
Hardness (HBN)270 max
Reduction of Cross Section Area (%)50
Density (Kg.m-1)8000
Magnetic Permeability<1.05
Young’s Modulus (N/mm2)200 x 103
Specific Heat, 20°C (J.Kg-1.°K-1)500
Specific Electrical Resistance, 20°C (µO.m)0.85
Thermal conductivity, 20°C13.5

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  • Commercial Invoice including HS Code
  • Packing List including number of boxes, net weight, gross weight, Marks & Numbers
  • Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
  • Material Test Certificates as per EN 10204 3.1, EN 10204 3.2
  • Test Certificates certifying NACE MR0103, NACE MR0175


  • Positive Material Identification – PMI Testing
  • Chemical Analysis – Spectro Analysis
  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177


The different ways in which our products are packed are:

  • Shrink-wrapped
  • Wooden Boxes
  • Wooden Pallets
  • Wooden Crates
  • Carton boxes


We mark Duplex 2205 as needed with the most suitable & visible marking techniques. Standard Marking System :-

  • Manufacturer’s Name or Trademark
  • Material Designation
  • Size Designation
  • Rating Designation
  • Melt Designation
  • Marking for Identification

Duplex 2205 Experiance - Oshwin Overseas

Leading Supplier, Manufacturer Exporter

More than 30 years of Experiance

Duplex 2205 Mill Test Report

Mill Test Report Provided

In Accordance with EN10204 NACE 3.1, NACE 3.2

Duplex 2205 Fast Delivery

Fast Delivery

Warehouse near to Airport & Port.

Duplex 2205 Shipping

Efficient & Cost Effective Shipping Services

We Offer EXW – Ex Works, FOB, CFR, CIF, DDU, etc.

Duplex 2205 Inspection


3rd Party Inspection is Carried out

Oshwin Overseas - ISO Certified

ISO 9001:2008 Certified


Duplex 2205 Quality Product

Quality Product

Transparent client dealing, No False Assurance, 100% Fulfillment of Commitments.

Duplex 2205 Export

Worldwide Exporter

Export to more than 70 Countries Worldwide

Duplex 2205 Price

Best Price

Competitive pricing is offered

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254 SMO Stainless Steel Pipe (ASTM A312 S31254)
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