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Stainless Steel alloys


ORIC Italiana S.r.l. produces and sells AISI (American Iron and Steel Institute) Stainless Steel alloys in all its forms. The Stainless Steels are iron-based alloys that combine the mechanical properties peculiar to the corrosion-resistance characteristics. These alloys are able, thanks essentially to the percentage of chromium, to be passivated, that is, to be covered with a layer of invisible oxides, with a thickness equal to a few atomic layers, which protects the underlying metal from corrosive attacks. Passivation occurs by reaction with the oxidizing environment. The passivating layer is self-healing and guarantees the protection of the metal. In particular, the passive film can be more or less resistant depending on the chromium concentration in the alloy and in relation to the possible presence of other elements such as nickel, molybdenum, titanium, etc. The minimum value of chromium to be able to talk of Stainless Steel is 11-12%.

Oric Italiana S.r.l. is able to supply Stainless Steel in the following forms:

The Stainless Steel alloys are used in the following fields:

  • Casting
  • Precision casting
  • Bars
  • Sheets
  • Belts
  • Tubes
  • Laminates
  • Forged parts
  • Welding materials (small bars – electrodes – wires – powders)
  • Food: systems in general – blades – shutters – pumps – valves
  • Aeronautics: bushings – turbine blades – rotors
  • Energetic: bushings – condensers – desalination plants – heat exchangers
  • Plastic: knives – screws for extruders
  • Metallurgical: bushings – knives – rollers
  • Naval: parts for bridges – railings – structures in general
  • Petroleum: shafts – bushings – shutters – pumps – seats – valves
  • Tools: knives – scissors – cutlery

Common types of Stainless Steel:


AISI 303 1.4305

AISI 304 1.4307

AISI 316 1.4404

AISI 321 1.4521

AISI 347 1.4550


AISI 410 1.4006

AISI 416 1.4005

AISI 420 1.4021

AISI 440 1.4112



AISI 430 1.4105





Duplex / SuperDuplex

F51 1.4462

F53 1.4410

F55 1.4501




AISI 630 1.4542 (17-4-PH)





Oric Italiana S.r.l. can offer Stainless Steel welding material, details made to design, but also additional services such as cutting of barrels according to customer specifications and specific heat treatments. For these purposes, the company has supplied automatic saws and industrial ovens.