SMO 254 Tube Fittings


Arrow Piping Solutions is a trusted manufacturer, supplier, exporter, and distributor of SMO 254 Compression Tube Fittings in India. Our products are widely acclaimed for their strength, durability, and resistance to harsh operating conditions. SMO 254, also known as UNS S31254 or DIN 1.4547, is an austenitic stainless steel ideal for applications involving high temperature, pressure, and corrosive environments.


These fittings offer superior resistance to pitting, crevice corrosion, and stress corrosion cracking. Manufactured using advanced equipment and premium-grade raw materials, Arrow Piping Solutions ensures every fitting complies with national and international standards. We offer customized and standard fittings to match diverse industrial requirements.

SMO 254 Tube Fittings

SMO 254 Compression Tube Fittings – Types & Forms


  • SMO 254 Flared Tube Fittings
  • SMO 254 Bulkhead Union Exporters
  • 254 SMO Female Elbow
  • SMO 254 Male Connector
  • UNS S31254 Branch Tees
  • DIN 1.4547 Adapters
  • Stainless Steel SMO 254 Instrumentation Tube Fittings Suppliers in India
  • SMO 254 Parker Compression Tube Fittings
  • SMO 254 Swagelok Compression Fitting
  • SMO 254 Ferrule Tube Fittings
  • SMO 254 Twin Ferrule Fittings
  • SMO 254 Hydraulic Tube Fittings

SMO 254 Compression Tube Fittings Specifications

Size Range1/16 in. to 2 in. & 2mm to 50 mm
End Connection Thread TypeNPT (ASME B1.20.1), SAE AS71051, ISO/BSP Parallel (ISO 228), ISO/BSP Tapered (ISO 7), BS EN 10226-1, SAE (Unified) ASME B1.1
Dimensional Range1/16 to 2 inches (imperial); 2 to 50 mm (metric)
Working PressureUp to 2000 to 6000 PSI
Medium Pressure RatingUp to 20,000 psig (1378 bar), 1000°F (537°C)
High Pressure RatingUp to 60,000 psig (4134 bar), 1000°F (537°C)
TypesTube to Union, Tube to Male, Tube to Female, Instrument Pipe Fittings, Accessories

SMO 254 Compression Tube Fittings Dimensions

ODOD ActualThread DesignationNPT (TPI)BSP (TPI)
5/160.31251/162728
13/320.4051/82728
35/640.5401/41819
43/640.6753/81819
27/320.8401/21414
1-3/641.0503/41414
1-5/161.315111.511
1-21/321.6601-1/411.511
1-29/321.9001-1/211.511
2-3/82.3752811
2-7/82.8752-1/2811
3-1/23.53811
44.03-1/2811
4-1/24.54811
5-5/85.5635811
6-5/86.6256811

SMO 254 Compression Tube Fittings Chemical Composition

GradeNiCrMoCuNCMnSiPS
SMO 25417.5 - 18.519.5 - 20.56 - 6.50.5 - 10.18 - 0.220.02 max1 max0.8 max0.03 max0.01 max

SMO 254 Compression Tube Fittings Mechanical Properties

DensityMelting PointTensile StrengthYield Strength (0.2% Offset)Elongation
8.0 g/cm³1320-1390 ℃650 MPa300 MPa35%

SMO 254 Compression Tube Fittings Equivalent Grades

STANDARDWERKSTOFF NR.UNSSISAFNOREN
254 SMO1.4547S312542378Z1 CNDU 20.18.06AzX1CrNiMoCuN20-18-7

Application Industries

Arrow Piping Solutions’ SMO 254 Compression Tube Fittings are used across a broad spectrum of industries thanks to their high durability, corrosion resistance, and strength under extreme conditions:

  • Textile Machinery
  • Oil and Gas Industry
  • Pulp and Paper Industry
  • Power Plants
  • Energy Industries
  • Furniture
  • Pharmaceutical Processing Industry
  • Modern Architecture
  • Home Appliances
  • Water Waste Projects
  • Synthetic Fiber
  • Heat Exchangers
  • Fluid Piping
  • Dairy and Food Processing