Stainless Steel Pipe Fittings

Austenitic stainless steel 200 and 300 series by

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Austenitic stainless steels include the workhorse grade EN 1.4301 (ASTM 304) as well as enhanced grades for improved corrosion resistance.

ASTM 304 grade is acid-resistant and is suitable for example in:

  • construction
  • pulp and paper
  • structures
  • Stainless Steel Pipes
  • water treatment applications

As with all our stainless steels, austenitic grades are produced to the strictest quality standards and performance requirements. They have good fabricability, resistance to atmospheric corrosion and resistance to many organic and inorganic compounds.

Grade properties

Austenitic stainless steels benefit from very high ductility and toughness. When delivered in the quench-annealed state they are very soft and formable, and when delivered as cold stretched or hard rolled they have increased hardness and strength. The strength of austenitic grades is increased with increased levels of carbon, nitrogen and, to a certain extent, molybdenum.


In general, austenitic stainless steels have excellent weldability. They do not require post-weld treatment and can be readily welded by a full range of conventional welding methods, including:

  • Shielded metal arc welding (SMAW)
  • Gas tungsten arc welding, TIG (GTAW)
  • Gas metal arc welding, MIG (GMAW)
  • Flux-cored arc welding (FCAW)
  • Plasma arc welding (PAW)
  • Submerged arc welding (SAW)

Typical Applications

Airplane exhaust manifolds
Pump Shafts

Stainless Steel Pipe Fittings
Mechanical Seals
Heat Exchangers
Ball Valves
Stainless Steel Pipes
Boiler shells
Process equipment
Expansion joints
Stainless Steel Flanges (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)

Corrosion resistance

Standard austenitic stainless steels are general purpose steels with good corrosion resistance to atmospheric corrosion and to many organic and inorganic chemicals.

This makes them well suited for processing, storing and transporting foodstuffs and beverages and many other stainless steel applications.

Source: Yaang Pipe Industry ( 

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Stainless Steel

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