Instrumentation & Capillary Tubes

SMO 254 Instrumentation Tubing & Fittings

Union, elbow and hex nipple

SMO 254 Instrumentation Tubing & Fittings

SMO 254 Instrumentation Tubing & Fittings in union, elbow and hex nipple. Get quotes from verified suppliers on MetalMitra.

  • SMO 254 Instrumentation Tubing & Fitting
  • SMO 254
  • Seamless Tubing
  • Compression Fittings
  • Needle Valves
  • Manifolds
  • High Pressure

Your details are never shown publicly. The MetalMitra team reviews every requirement.

Specifications

Grade254 SMO UNS S31254
Tube Size1/16"OD to 2"OD, 2mm OD to 50mm OD
Range1/4" OD TO 2" OD
ThreadNPT, BSP, BSPT, UNF
Pressure Rating3000 & 6000
FormUnion, Elbow, Hex Nipple, Elbow, Cap, Adapter, Tee etc

Need a dependable smo 254 instrumentation fitting? SMO 254 Instrumentation Tubing & Fittings on MetalMitra come in union, elbow and hex nipple, ready for leak-tight instrument and hydraulic lines.

SMO 254 Instrumentation Tubing & Fittings include seamless and welded instrumentation tubes together with compression fittings, connectors and valves used to carry process fluids and signals safely to instruments.

SMO 254 (UNS S31254) is a 6% molybdenum super-austenitic stainless steel built for chloride-rich service. SMO 254 (UNS S31254) is a high-alloy 6Mo super austenitic stainless steel with high molybdenum and nitrogen, offering excellent resistance to pitting and crevice corrosion in chloride-bearing media.

Available forms & variants

  • Instrumentation Tubing — Seamless and welded tubes for impulse and process lines.
  • Compression Fittings — Single and double ferrule tube fittings.
  • Needle & Ball Valves — Isolation and flow control for instrument lines.
  • Manifolds & Accessories — 2, 3 and 5-way manifolds and tube accessories.

Performance highlights

  • 6Mo Super Austenitic — High molybdenum and nitrogen content for severe environments.
  • Pitting Resistance — Excellent resistance to pitting and crevice corrosion.
  • Seawater Service — Suitable for seawater and brackish water systems.
  • Good Weldability — Austenitic structure supports reliable fabrication.

Typical applications

  • Seawater Handling
  • Desalination Plants
  • Pulp & Paper Bleaching
  • Chemical Processing
  • Offshore Oil & Gas
  • Flue Gas Desulphurisation
  • Food Processing
  • Heat Exchangers
  • Marine Engineering
  • Pharmaceutical
  • Fabrication
  • General Engineering

Quality checks & certification

Every lot of SMO 254 Instrumentation Tubing & Fittings sourced through MetalMitra can be inspected and documented to the governing standard and your purchase order.

  • Dimensional inspection
  • Visual & surface inspection
  • Grade verification against the order
  • Hydrostatic / pneumatic testing as applicable
  • Eddy current testing for tubing as applicable
  • Positive Material Identification (PMI)
  • EN 10204 3.1 Mill Test Certificate
  • Project-specific documentation on request

Why buy through MetalMitra

  • Checked sellers only — Every supplier profile is screened by MetalMitra before it goes live.
  • Faster sourcing — Post one requirement and receive competitive offers without chasing calls.
  • Paperwork sorted — MTC 3.1, test reports and TPI arranged as your project demands.
  • Global logistics — Seaworthy packing and dispatch to project sites across the world.

Ready to buy?

Send your size, grade, quantity and delivery location for SMO 254 Instrumentation Tubing & Fittings, and matching suppliers on MetalMitra will come back with offers.

Technical note: Figures shown are indicative. Final acceptance should be based on the applicable standard, approved drawings and the MTC supplied with the material.

Applications & industries

  • Seawater Handling
  • Desalination Plants
  • Pulp & Paper Bleaching
  • Chemical Processing
  • Offshore Oil & Gas
  • Flue Gas Desulphurisation
  • Food Processing
  • Heat Exchangers
  • Marine Engineering
  • Pharmaceutical
  • Fabrication
  • General Engineering
  • Oil & Gas
  • Chemical Processing
  • Desalination
  • Marine & Shipbuilding
  • Pharmaceutical
  • Food & Dairy
  • Pulp & Paper

Testing & documents

Ask for the documents you need in your requirement — suppliers confirm them in their quotation:

  • Mill test certificate to EN 10204 3.1, or 3.2 with third-party witness
  • Third-party inspection (TPI) by SGS, Bureau Veritas, TÜV or your nominated agency
  • Tests as the standard or your order requires: hydro, PMI, IGC, NDT, hardness or impact tests

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